Isobornyl acrylate is abbreviated as IBOA, CAS No. 5888-33-5, a colorless and transparent liquid, and is a monofunctional (functionality = 1) acrylate monomer. Its molecular weight is about 220 g/mol. It has a medium viscosity (about 10-30 mPa·s), and the large isobornyl group gives it a low polymerization shrinkage (<10%) and a high refractive index (about 1.47). The surface tension is low (25-30 mN/m), which can enhance the wettability and adhesion to the substrate. It has a moderate photocuring speed and high free radical reactivity. It can be compounded with other high-functionality monomers to adjust the curing efficiency; after curing, the coating presents high gloss, balanced mechanical properties (flexibility and hardness), excellent chemical resistance (acid, alkali and solvent resistance) and weather resistance (UV and humidity resistance). The monomer has good biocompatibility, but it should be noted that the uncured monomer may be slightly irritating to the skin and needs to be operated in a ventilated environment. After complete curing, the toxicity is extremely low, and it is suitable for high-end fields such as optoelectronics and medical equipment.

The synthesis process of Wencheng Chemical's isobornyl acrylate is to combine isobornyl alcohol, acrylic acid (molar ratio 1:1-1.1), catalyst (1-5% wt) and polymerization inhibitor (0.1-0.5% wt) into the reaction kettle, add (water-carrying agent) toluene, add polymerization inhibitor hydroquinone, catalyst p-toluenesulfonic acid, control the temperature at 80-120°C and react for 6-9 hours, neutralize excess acid with liquid caustic soda, wash with alkali and water, and obtain it by dehydration and distillation.

Isobornyl acrylate has high activity, high hardness, low shrinkage, and is mainly used in automotive coatings, high solid content coatings, UV light-curing coatings, optical fiber coatings, modified powder coatings, etc.

Storage conditions: cool and ventilated, avoid light, keep away from fire and heat sources

Viscosity 3-10mPa's
Color No. ≤20APHA
Acid value ≤0.20mg KOH/g
Moisture ≤ 0.1%
Capacity: 1000 tons/month
Delivery speed: Same day
Minimum packaging: 200 kg/iron drum or tank

Isobornyl methacrylate, referred to as IBOMA, CAS No. 7534-94-3, is a colorless to light yellow transparent liquid. It is a hydrophobic acrylate monomer with monofunctionality (functionality 1). Its molecular weight is about 222.3 g/mol, with medium photocuring speed (need to be combined with high-efficiency photoinitiator), medium-low viscosity (about 40-60 mPa·s), low shrinkage (due to monofunctional structure), high refractive index (about 1.47) and low surface tension, which can enhance the wettability and adhesion of the substrate. Its reactivity is weak due to the steric hindrance of the isobornyl ester group, and it requires higher energy to cure. After curing, the coating has high gloss, medium mechanical properties (good flexibility but low hardness and strength), and general chemical resistance and weather resistance (weaker than multifunctional monomers). It has limited biocompatibility and may be slightly irritating to the skin. It has low toxicity but still requires operating protection. Isobornyl methacrylate is a monomer that combines hardness and flexibility. Due to its molecular structure, its polymer has excellent high gloss, vividness, scratch resistance, medium resistance and weather resistance, and its hygroscopicity is significantly lower than MMA (methyl methacrylate). In addition, acrylic resins with IBOMA have good compatibility with polyesters, alkyds and many volatile paint film-forming substances.

Wencheng Chemical's isobornyl methacrylate synthesis process is to dehydrate and esterify methacrylic acid (MAA) and isobornyl alcohol (Isoborneol) under the action of an acid catalyst. Before the reaction, a catalyst, p-toluenesulfonic acid (PTSA), and an inhibitor, hydroquinone (HQ) or 4-methoxyphenol (MEHQ), are added. The temperature is controlled at 100-120°C for 6-8 hours, and the product is dehydrated with a water separator. After the reaction is completed, the product is neutralized with liquid alkali, washed with alkali, washed with water, and distilled to obtain the product.

Suitable for light-curing coatings, UV inks, optical materials, adhesives, and resin modification industries

Storage conditions: cool and ventilated, avoid light, keep away from fire and heat sources

Viscosity 3-8mPa's
Color No. ≤20APHA
Acid value ≤0.20mg KOH/g
Moisture ≤ 0.1%
Capacity: 1000 tons/month
Delivery speed: Same day
Minimum packaging: 200 kg/iron drum or tank

2-Phenoxyethyl acrylate, referred to as PHEA, CAS 48145-04-6, is a colorless, transparent liquid. It is a monofunctional (functionality = 1) acrylate monomer with a molecular weight of about 192.2 g/mol and a medium viscosity (about 10-50 mPa·s). Its low shrinkage (<10%) makes it exhibit excellent dimensional stability in photocuring systems. The monomer has a fast photocuring speed and high reactivity, and is suitable for free radical UV curing systems. The refractive index is about 1.51 (589 nm), the surface tension is about 35-40 mN/m, and the adhesion to polar substrates (such as metals and plastics) is good. The cured coating has a medium gloss, and the mechanical properties are flexibility and strong impact resistance, but the hardness and wear resistance are relatively low. In terms of chemical resistance, it can tolerate weak acids, weak bases and some solvents, but it may deteriorate under long-term exposure to strong oxidizing environments or extreme pH conditions; the weather resistance is general, and stabilizers need to be added to resist UV degradation. Biocompatibility data is limited and it is generally considered to be of low toxicity, but it may be slightly irritating to the skin/eyes in its unmodified state. Toxicological testing (such as LD50>2000 mg/kg) is required to confirm the safety of specific applications.

The synthesis process of Wencheng Chemical's phenoxyethyl acrylate is to evacuate and heat the phenol and ring-opening polymerization catalyst, add ethylene oxide dropwise, and rectify the 2-phenoxyethanol intermediate, then add acrylic acid, catalyst copper chloride and p-toluenesulfonic acid, polymerization inhibitor p-hydroxyanisole, and solvent cyclohexane to continue heating and stirring for direct esterification reaction, and finally undergo alkali washing, water washing, and removal of the solvent to obtain the finished product.

It is widely used in photocuring coatings, inks and adhesives. The gloss, adhesion and durability can be adjusted by compounding. It is suitable for the rapid curing needs in the fields of electronics and packaging.

Storage conditions: cool and ventilated, avoid light, keep away from fire and heat sources

Viscosity 10-100mPa's
Color No. ≤20APHA
Acid value ≤0.20mg KOH/g
Moisture ≤ 0.1%
Capacity: 1000 tons/month
Delivery speed: Same day
Minimum packaging: 200 kg/iron drum or tank

1,6-Hexanediol diacrylate is referred to as HDDA, CAS No. 13048-33-4, a colorless transparent liquid, is a difunctional (functionality = 2) acrylate monomer. The six carbon chains of 1,6-hexanediol provide molecular segment mobility, which is suitable for scenes that require bending resistance. The molecular weight is 226.27, with a low viscosity (about 10-30 mPa·s), suitable for photocuring systems. Its photocuring speed is moderate and its reactivity is high. Its light-curing speed is medium and its reactivity is high. Because it contains two acrylate groups, it can form a moderate cross-linked network. The shrinkage rate after curing is relatively low (about 10%-15%), giving the material a good balance of mechanical properties (both hardness and flexibility) and high surface gloss. The refractive index is about 1.46, the surface tension is about 30-35 mN/m, and the adhesion to common substrates is moderate, and it often needs to be reinforced with resin. After curing, the material has average chemical resistance (acid, alkali, solvent resistance) and weather resistance, and is prone to aging if exposed to ultraviolet rays or extreme environments for a long time. Limited biocompatibility, may cause skin irritation, low toxicity but direct contact should be avoided, as an active diluent to reduce VOC emissions, in compliance with environmental regulations.

The synthesis process of 1,6-hexanediol diacrylate of Wencheng Chemical is to mix 1,6-hexanediol and acrylic acid in a certain molar ratio in a reactor, add catalyst p-toluenesulfonic acid (2.5% of the total mass of the raw materials), inhibitor hydroquinone (0.6% of the mass of acrylic acid), water-carrying agent cyclohexane, fill with nitrogen, stir and heat, control the temperature at 80-110℃, react for 6-8 hours, and after the reaction is completed, wash and neutralize with 5% sodium carbonate aqueous solution, wash with alkali, wash with water, and remove impurities and saturated water by vacuum distillation (vacuum degree <10 mmHg, boiling point about 120-140℃).

Widely used in plastics; adhesives; textiles; rubber; modified copolymers; injection molded parts; coatings, inks, photopolymers, and solder mask inks.

Storage conditions: cool and ventilated, avoid light, keep away from fire and heat sources

Viscosity 1-10mPa's
Color No. ≤20APHA
Acid value ≤0.20mg KOH/g
Moisture ≤ 0.1%
Capacity: 1000 tons/month
Delivery speed: Same day
Minimum packaging: 200 kg/iron drum or tank

1,6-Hexanediol dimethacrylate CAS No. 6606-59-3, referred to as HDDMA, is a colorless to light yellow transparent liquid with good flexibility, hydrolysis resistance, heat resistance, chemical solvent resistance, low volatility and low viscosity. It is a difunctional (functionality = 2) acrylate monomer with fast UV light curing speed (seconds, dependent on initiator and ultraviolet light), low viscosity (about 5-20 mPa·s, 25℃), but high shrinkage after curing (6-10%), which can give the material medium hardness (Shore D 60-80) and certain flexibility, good water resistance but limited tolerance to strong solvents and acids and alkalis, and yellowing may occur after long-term exposure to ultraviolet light (stabilizer needs to be added). Uncured monomers are irritating to skin and eyes (protection is required), and have low acute toxicity (LD50 >2000 mg/kg).

Wencheng Chemical's 1,6-hexanediol dimethacrylate synthesis process is to mix 1,6-hexanediol, methacrylic acid, and inhibitor (CuSO4/NaHSO4 is a composite inhibitor) in proportion, add catalysts (p-toluenesulfonic acid and phosphorous acid), use cyclohexane as a water-carrying agent, stir and heat for direct esterification reaction, the reaction time is 90 min, and the reaction temperature is controlled at 80~90℃. After the reaction, it is washed with low-concentration liquid alkali, extracted, and dehydrated.

Mainly used as elastomer and rubber, graft crosslinking agent, acrylic adhesive, reactive diluent and radiation curing, plastic co-crosslinking agent, unsaturated polyester reactive diluent, etc.

Storage conditions: cool and ventilated, avoid light, keep away from fire and heat sources

Viscosity 1-9mPa's
Color No. ≤20APHA
Acid value ≤0.20mg KOH/g
Moisture ≤ 0.1%
Capacity: 1000 tons/month
Delivery speed: Same day
Minimum packaging: 200 kg/iron drum or tank

Polyethylene glycol diacrylate is referred to as PEGDA, CAS No. 26570-48-9, EINECS No. 251-228-4. It is usually a colorless to light yellow transparent liquid, composed of acrylate groups connected to both ends of the polyethylene glycol (PEG) chain. Therefore, the polyethylene glycol segment has good hydrophilicity, flexibility and biocompatibility, is relatively stable at room temperature, and the acrylate group contains a carbon-carbon double bond, which has high reactivity. Under the conditions of light, heating or the presence of an initiator, it can undergo free radical polymerization and other reactions. Its bifunctionality (functionality is 2) gives it a high cross-linking density, but the viscosity is relatively low (usually hundreds to thousands of mPa·s, which increases with the increase of molecular weight), which is suitable for precision molding processes such as microfluidics or bioprinting. After curing, the material shrinks at a high rate (a typical characteristic of acrylates), which may cause internal stress or deformation; the mechanical properties are moderate strength and high flexibility, but the chemical resistance and weather resistance are average, and it is easily affected by strong acids, strong alkalis or long-term ultraviolet radiation. Its outstanding advantages are good biocompatibility (PEG segments are hydrophilic and resistant to protein adsorption) and low toxicity (it is necessary to ensure that the monomers are completely converted, and residual unreacted monomers may cause cytotoxicity).

Wencheng Chemical's polyethylene glycol diacrylate synthesis process is a direct esterification method of polyethylene glycol and acrylic acid. Polyethylene glycol PEG, acrylic acid, and polymerization inhibitors (such as cuprous chloride or p-hydroxy-para-hydroxyanisole, etc.) are mixed in proportion, a catalyst (such as toluene sulfonic acid) is added, the reaction is stirred and heated, and toluene is used as the solvent for dehydration. After the reaction is completed, it is obtained by alkali washing, extraction, and dehydration with low-level liquid alkali.

Mainly used in biomedical fields such as photocurable coatings, photocurable inks, tissue engineering, and drug carriers.

Storage conditions: cool and ventilated, avoid light, keep away from fire and heat sources

Viscosity 80-120mPa's
Color No. ≤20APHA
Acid value ≤0.20mg KOH/g
Moisture ≤ 0.1%
Capacity: 1000 tons/month
Delivery speed: Same day
Minimum packaging: 200 kg/iron drum or tank

Triethylene glycol diacrylate, abbreviated as TEGDA, CAS No. 1680-21-3, also known as triethylene glycol diacrylate, is a colorless to light yellow transparent liquid. It is a difunctional (functionality 2) acrylate monomer with a medium light curing speed. The curing efficiency can be optimized by adjusting the initiator or light conditions; the viscosity is low (about 15-25 mPa·s, 25°C), easy to process and mix with other components. The molecule contains three triethylene glycol chains, which gives it flexibility and moderate shrinkage (lower than multifunctional monomers), balancing dimensional stability and processability. It is suitable for scenarios that require both hardness and toughness, especially polymer materials that require high elasticity or deformation resistance, such as flexible coatings and light-cured resins. In practical applications, they are often compounded with other monomers (such as HDDA, TPGDA) or oligomers. , to optimize performance, it contains two acrylate groups (double bonds), making it highly reactive. It can be quickly cross-linked and polymerized under the trigger of ultraviolet light (UV) or free radicals to form a dense polymer network. Its mechanical properties are medium hardness and toughness. It is suitable for coatings or adhesives that require a certain degree of flexibility. It has good chemical resistance and can resist common solvents and weak acid and alkaline substances. However, its long-term weather resistance is average, and antioxidants or UV stabilizers need to be added to delay photoaging. The biocompatibility is limited. The uncured monomer may be irritating to the skin and mucous membranes. It needs to be fully cured before use. It is not recommended to be used directly for implantable materials in the body. It usually contains inhibitors (such as MEHQ), is sensitive to acids and alkalis, and should be avoided from contact with strong oxidants.

Wencheng Chemical's triethylene glycol diacrylate synthesis process uses triethylene glycol and acrylic acid as raw materials, adds an acidic catalyst (such as concentrated sulfuric acid or p-toluenesulfonic acid) and an inhibitor (such as hydroquinone), heats and refluxes, and promotes the forward movement of the esterification equilibrium through azeotropic or molecular sieve dehydration. After the reaction is completed, the catalyst is removed by neutralization and water washing, and the product is purified by vacuum distillation or column chromatography to finally obtain a high-purity diacrylate monomer.

Mainly used in UV resin, UV coating, water-based coating, photosensitive ink, flexible ink, light-curing glue, photoresist, adhesive, biomedical materials, etc.

Storage conditions: cool and ventilated, avoid light, keep away from fire and heat sources

Viscosity 9-15mPa's
Color No. ≤20APHA
Acid value ≤0.20mg KOH/g
Moisture ≤ 0.1%
Capacity: 1000 tons/month
Delivery speed: Same day
Minimum packaging: 200 kg/iron drum or tank

Triethylene glycol dimethacrylate, referred to as TEGDMA cas 109-16-0, is a colorless to pale yellow transparent liquid. It is a difunctional (functionality = 2) photocurable monomer with a molecular weight of about 286, medium viscosity (about 20-50 mPa·s), low shrinkage during curing (6-8%), and suitable for high-precision molding. Its refractive index is about 1.46, its surface tension is medium (30-35 mN/m), and its adhesion to polar substrates is good. It is highly reactive under ultraviolet light initiation, cures quickly, and the resulting coating has excellent gloss and balanced mechanical properties (both hardness and toughness). It has average chemical resistance and is sensitive to polar solvents; it has moderate weather resistance and requires the addition of stabilizers to prevent yellowing for long-term exposure. It has limited biocompatibility, and unpolymerized monomers may be irritating to the skin. It has low toxicity but needs to avoid direct contact. It is suitable for photocurable coatings, dental materials and other fields, and needs to be operated in a ventilated environment to ensure safety.

Wencheng Chemical's triethylene glycol diacrylate synthesis process is to mix triethylene glycol (TEG) and methacrylic acid (MAA) in a certain proportion and put them into an esterification reactor, with 10% excess methacrylic acid. Add a polymerization inhibitor, hydroquinone, a catalyst, cuprous chloride and a compound of p-toluenesulfonic acid. Under nitrogen protection, the temperature is controlled at 110-130°C to react for 6-10 hours, neutralize with liquid alkali, then wash with alkali and water, and then distill to remove impurities.

Mainly used in photocurable materials, electronic adhesives, photosensitive polymers, plastic polymers, etc.

Storage conditions: cool and ventilated, avoid light, keep away from fire and heat sources

Viscosity 20-50mPa's
Color No. ≤20APHA
Acid value ≤0.20mg KOH/g
Moisture ≤ 0.1%
Capacity: 1000 tons/month
Delivery speed: Same day
Minimum packaging: 200 kg/iron drum or tank

Dipropylene glycol diacrylate is abbreviated as DPGDA, CAS No. 57472-68-1, EINECS No. 260-754-3, also known as dipropylene glycol diacrylate. It has a slight characteristic odor, is a colorless to light yellow transparent medium viscosity liquid, functionality 2, has a fast UV curing speed, provides a moderate crosslinking density, and is suitable for high-efficiency light curing systems. Its viscosity is low (usually in the range of 20-50 mPa·s), which can effectively reduce the viscosity of the resin system and improve processing fluidity. During curing, a moderate crosslinking network is formed due to the reaction of the diacrylate group, and the shrinkage rate is moderate (between monofunctional and multifunctional monomers), taking into account both volume stability and reactivity. After curing, the material presents balanced mechanical properties, with a certain hardness and flexibility, but relatively limited impact resistance. It has good chemical resistance and can tolerate weak acids, weak bases and some organic solvents, but its resistance to strong polar solvents is weak; it has moderate weather resistance, and stabilizers need to be added to prevent yellowing when exposed to ultraviolet light for a long time. This compound is irritating to the skin and mucous membranes, has low biocompatibility, and is not suitable for direct contact with the human body in the medical field. Strict protection is required during operation. It is prone to free radical polymerization (such as UV light curing, thermal initiation), has excellent comprehensive performance and cured paint film performance, and has strong dilution ability. It is sensitive to heat and requires the addition of inhibitors for long-term storage.

Wencheng Chemical's dipropylene glycol diacrylate synthesis process is to mix dipropylene glycol, acrylic acid, and polymerization inhibitors (such as cuprous chloride or p-hydroxyanisole, etc.) in proportion, add catalysts (such as methylsulfonic acid or p-toluenesulfonic acid, etc.), stir and heat the reaction, and dehydrate with solvents. After the reaction is completed, it is obtained by alkali washing, extraction, and dehydration with low-level liquid alkali.

Mainly used as reactive diluent and cross-linking agent in radiation curing systems, it is widely used in UV coatings, UV inks, adhesive industries, and resins.

Storage conditions: cool and ventilated, avoid light, keep away from fire and heat sources

Viscosity 7-13mPa's
Color No. ≤20APHA
Acid value ≤0.20mg KOH/g
Moisture ≤ 0.1%
Capacity: 1000 tons/month
Delivery speed: Same day
Minimum packaging: 200 kg/iron drum or tank

Tripropylene glycol diacrylate, referred to as TPGDA, is a colorless and transparent liquid. It is a bifunctional (functionality 2), low viscosity, high reactivity and high cross-linking acrylate monomer. It has excellent retention and can be used as a binder and coating in aqueous systems and organic systems. It has a molecular weight of about 300 and a low viscosity (about 50-100 mPa·s) and medium light-curing speed, its moderate shrinkage (lower than monofunctional monomers) and low surface tension can improve substrate adhesion and film smoothness. The refractive index is about 1.45, giving the coating good light transmittance; the highly reactive acrylic double bonds can form a dense cross-linked network, which exhibits high gloss and medium mechanical properties (balance of hardness and toughness) after curing. It has excellent thermal stability, water resistance, and chemical resistance (such as solvents, acids and alkalis), but its weather resistance is average and needs to be enhanced through formulation optimization; its biocompatibility is limited, and long-term contact may cause skin irritation, but its toxicity is low, and operational protection specifications must be followed.

The synthesis process of tripropylene glycol diacrylate of Wencheng Chemical is to add a catalyst (p-toluenesulfonic acid) and an inhibitor (p-hydroxyanisole) to a certain mole of tripropylene glycol and acrylic acid in an acidic environment, stir and heat to control the temperature at 80-90°C for direct esterification reaction for 6-9 hours, use solvent to dehydrate to remove impurities, and then wash with alkali and water before distillation and dehydration to obtain the product.

Mainly used as reactive diluent in compound or alone for radiation cross-linking in UV field, photoresist and EB.

Storage conditions: cool and ventilated, avoid light, keep away from fire and heat sources

Viscosity 5-20mPa's
Color No. ≤20APHA
Acid value ≤0.20mg KOH/g
Moisture ≤ 0.1%
Capacity: 1000 tons/month
Delivery speed: Same day
Minimum packaging: 200 kg/iron drum or tank

PTrimethylolpropane triacrylate, referred to as TMPTA, CAS No. 15625-89-5, is a colorless to light yellow to light orange liquid with high boiling point, high activity, low volatility and low viscosity. It is a highly reactive trifunctional (functionality 3) acrylate monomer with a molecular weight of about 296 and a medium viscosity (about 100-150 mPa·s). Its high functionality gives it fast light curing properties. After curing, it forms a network structure with a high cross-linking density, resulting in a high curing shrinkage rate (about 6-8%), but at the same time provides excellent mechanical properties (high hardness, wear resistance) and good chemical resistance (solvent resistance, acid and alkali resistance). Its refractive index is about 1.47, and its surface tension is medium (30-35 mN/m). It shows strong adhesion to a variety of substrates (metals, plastics). The cured film has high gloss and strong reactivity, and can be efficiently polymerized by ultraviolet light or electron beam. Weather resistance is average, and long-term exposure to ultraviolet rays may cause yellowing; biocompatibility is limited, and uncured monomers are irritating to the skin/mucous membranes. The toxicity is low but protective operations are required.

The synthesis process of trimethylolpropane triacrylate of Wencheng Chemical is to input a quantitative molar number of trimethylolpropane (TMP), an excess of acrylic acid (AA), a water-containing solvent toluene and a catalyst p-toluenesulfonic acid, and an inhibitor p-hydroxyanisole, heat and control the temperature at 80℃-90℃ for direct esterification reaction for 6-9 hours, and then dehydrate and remove the solvent after acid washing, alkali washing and brine washing to obtain it.

It is mainly used in the fields of industrial coatings, inks and adhesives, and is less commonly used in biomedical scenarios.

Storage conditions: cool and ventilated, avoid light, keep away from fire and heat sources

Viscosity 70-150mPa's
Color No. ≤20APHA
Acid value ≤0.20mg KOH/g
Moisture ≤ 0.1%
Capacity: 1000 tons/month
Delivery speed: Same day
Minimum packaging: 200 kg/iron drum or tank

Trimethylolpropane trimethacrylate, abbreviated as TMPTMA, CAS No. 3290-92-4, is a multifunctional crosslinking agent. It is a colorless and transparent liquid at room temperature with low volatility and high reactivity. Its molecule contains three methacrylate groups, which can form a three-dimensional network structure through free radical polymerization, significantly improving the hardness, heat resistance and chemical resistance of the material. As a key additive, it is widely used in photocuring coatings, plastic modification, adhesives and rubber industries, and can enhance product performance without affecting processing fluidity. The upstream raw materials are mainly trimethylolpropane and methacrylic acid, and the downstream covers the field of polymer material manufacturing. It is an important component of high-performance resins and specialty chemicals.

The synthesis process of Wencheng Chemical's trimethylolpropane trimethacrylate is to add trimethylolpropane TMP, methacrylic acid (excess 12%), catalyst p-toluenesulfonic acid (1-3% molar equivalent), polymerization inhibitor hydroquinone (0.1-0.5% mass ratio), and water-containing agent cyclohexane into the reactor, stir and mix, heat to 110-130°C, reflux for 4-8 hours, use water separation Remove the generated water, and monitor the reaction endpoint by measuring the acid value. After the reaction, cool to room temperature, neutralize with sodium carbonate solution to neutrality, remove the water layer by liquid separation, wash the organic layer with deionized water until neutral, dry with anhydrous sodium sulfate, and remove unreacted methacrylic acid and solvent by distillation under reduced pressure to obtain a light yellow transparent liquid product. It should be noted that a polymerization inhibitor must be added throughout the process to prevent double bond polymerization of methacrylic acid.

Trimethylolpropane trimethacrylate is mainly used in light-curing inks, coatings, special rubbers, resin modification, etc.

Storage conditions: cool and ventilated, avoid light, keep away from fire and heat sources

Viscosity 35-50mPa's
Color No. ≤20APHA
Acid value ≤0.20mg KOH/g
Moisture ≤ 0.1%
Capacity: 1000 tons/month
Delivery speed: Same day
Minimum packaging: 200 kg/iron drum or tank

Di-trimethylolpropane acrylate, referred to as Di-TPMTA, CAS No. 94108-97-1, is a colorless to yellow transparent liquid with a slight acrylate smell. Di-trimethylolpropane acrylate (Di-TMPTA) is a bifunctional (functionality 2) acrylate monomer with a molecular weight of approximately 428 g/mol and a medium viscosity (approximately 100-200 mPa·s, 25℃), its photocuring speed is fast but lower than that of high-functionality monomers, its curing shrinkage is moderate (about 6-8%), its refractive index is about 1.47-1.49, and its surface tension is low (about 30-35 mN/m), which is beneficial to substrate wetting and adhesion improvement, especially showing good adhesion to metals, plastics and other materials. It has medium reactivity and can be efficiently cross-linked by UV light or electron beam. After curing, the coating has high gloss and balanced mechanical properties (both hardness and toughness), but its chemical resistance (such as acid and alkali, solvent) and weather resistance (UV, damp heat) are average and need to be enhanced through formula modification. It has limited biocompatibility and may be irritating to the skin or mucous membranes. Direct contact should be avoided. It has low toxicity but must be used in accordance with chemical safety regulations.

Wencheng Chemical's ditrimethylolpropane acrylate synthesis process is to stir ditrimethylolpropane, acrylic acid (AA), water-containing solvent cyclohexane and catalyst cuprous chloride with p-toluenesulfonic acid formulation and inhibitor p-hydroxyanisole, heat the mixed solution and control the reaction at 80℃-90℃ for 6-9 hours, and then dehydrate and remove the solvent after vacuum distillation, acid washing, alkali washing, and brine washing to obtain.

Widely used in the fields of photocurable coatings, inks and adhesives.

Storage conditions: cool and ventilated, avoid light, keep away from fire and heat sources

Viscosity 100-200mPa's
Color No. ≤20APHA
Acid value ≤0.20mg KOH/g
Moisture ≤ 0.1%
Capacity: 1000 tons/month
Delivery speed: Same day
Minimum packaging: 200 kg/iron drum or tank

Pentaerythritol triacrylate is abbreviated as PETA, CAS No. 3524-68-3 EINECS No. 222-540-8, also known as pentaol triacrylate, is a colorless to light yellow transparent viscous liquid with a melting point of 15°C. The three hydroxyl groups of pentaerythritol are acrylated, leaving one hydroxyl group. The three hydroxyl groups of pentaerythritol are acrylated, leaving one hydroxyl group. The three acrylate functional groups are connected to the pentaerythritol skeleton and can be quickly cross-linked under UV light to form a network structure, giving the material a high photocuring speed, high strength and high wear resistance. It is sensitive to heat and requires the addition of inhibitors for long-term storage. It is suitable for high-efficiency ultraviolet (UV) curing systems. Its viscosity is medium (usually 500-2000 mPa·s, 25°C), which is easy to process but may require diluent adjustment; due to its high functionality, the crosslinking density is large after curing, resulting in a high shrinkage rate (about 6-10%), but it can provide excellent mechanical properties (high hardness, wear resistance and rigidity). The material has good chemical resistance and can resist corrosion from common solvents and acids and alkalis, but its weather resistance is average. Long-term exposure to ultraviolet rays or hot and humid environments may cause aging, and stabilizers need to be added to improve it. The biocompatibility is poor and it is irritating to the skin and eyes before curing.

The synthesis process of Wencheng Chemical's pentaerythritol triacrylate is to mix pentaerythritol and acrylic acid, add polymerization inhibitors and catalysts such as copper chloride, stir and control the temperature, then wash with alkali and salt water, and finally remove the water and solvent. It should be noted that the activity of the hydroxyl groups of pentaerythritol is different. The two hydroxyl groups near the center have large steric hindrance and can easily lead to incomplete esterification reaction, so the temperature and material ratio must be accurately controlled.

Mainly used for UV resin, UV coating, UV ink, adhesive, etc.

Storage conditions: cool and ventilated, avoid light, keep away from fire and heat sources

Viscosity 900-1400mPa's
Color No. ≤20APHA
Acid value ≤0.20mg KOH/g
Moisture ≤ 0.1%
Capacity: 1000 tons/month
Delivery speed: Same day
Minimum packaging: 200 kg/iron drum or tank

Dipentaerythritol hexaacrylate CAS No. 29570-58-9, EINECS No. 249-698-0, also known as polydipentaerythritol hexaacrylate, dipentaerythritol hexaacrylate, dipentaerythritol pentaacrylate, DPHA for short, is a colorless to light yellow transparent liquid, viscous liquid at room temperature. It has six acrylate functional groups, has extremely fast light curing speed, is suitable for efficient UV curing system, and cures quickly under ultraviolet light, electron beam or thermal curing conditions. This fast curing speed makes DPHA very useful in applications such as coatings and adhesives, which can achieve efficient production and processing, and can form a highly cross-linked polymer network structure in the polymerization reaction. This cross-linked network gives the material excellent physical properties, such as high strength, high hardness and excellent wear resistance. The monomer has a high viscosity (about 3000-5000 mPa·s at 25°C) and needs to be used with a diluent monomer adjustment process so that the cured coating has chemical resistance (solvent resistance, acid and alkali resistance) and weather resistance (anti-yellowing, anti-UV) and low shrinkage. This means that it does not undergo significant volume changes during the curing process, which makes DPHA very useful in the preparation of high-precision products. Uncured monomers are irritating to the skin/eyes (LD50>2000 mg/kg, low acute toxicity) and require protection; after curing, the biocompatibility meets general industrial standards, but it is not recommended to be used directly in the field of medical implants.

The synthesis process of Wencheng Chemical's pentaerythritol triacrylate is to mix pentaerythritol and acrylic acid, add polymerization inhibitors and catalysts such as copper chloride, stir and control the temperature, then wash with alkali and salt water, and finally remove the water and solvent. It should be noted that the activity of the hydroxyl groups of pentaerythritol is different. The two hydroxyl groups near the center have large steric hindrance and can easily lead to incomplete esterification reaction, so the temperature and material ratio must be accurately controlled.

Dipentaerythritol hexaacrylate has excellent crosslinking ability and curing speed, which makes it widely applicable in various application fields. It can be used to prepare UV coatings, UV inks, UV varnishes, UV adhesives, optical materials, electronic materials and photosensitive materials, modifiers, optical lenses, microelectronic devices and molds.

Storage conditions: cool and ventilated, avoid light, keep away from fire and heat sources

Viscosity 5000-10000mPa's
Color No. ≤20APHA
Acid value ≤0.20mg KOH/g
Moisture ≤ 0.1%
Capacity: 1000 tons/month
Delivery speed: Same day
Minimum packaging: 200 kg/iron drum or tank