Hangzhou Wencheng Chemical Biotech Co., Ltd.

Dipentaerythritol hexaacrylate
Dipentaerythritol hexaacrylate
Dipentaerythritol hexaacrylate

Dipentaerythritol hexaacrylate

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  • Category

    Acrylate series

  • Describe

    Dipentaerythritol hexaacrylate (DPHA or DPHAE) is a highly functional multi-acrylate monomer. Because it has 6 acrylate groups, it is widely used as a crosslinker with ultra-high crosslink density in UV/EB curing materials.

  • Cas No.

    106-36-5

  • Purity

    mixture

  • Synonym(s)

    DPHA; DPHAE

Physical and chemical properties

  • 1. Chemical Identity
    • Chemical Name: Dipentaerythritol hexaacrylate
    • IUPAC Name: (3-Acryloyloxy-2,2-bis(acryloyloxymethyl)propoxy)methyl-2,2-bis(acryloyloxymethyl)propane-1,3-diyl diacrylate
    • Synonyms: DPHA, Dipentaerythritol (6) acrylate
    • CAS Number: 29570-58-9 (This CAS number also covers Ditrimethylolpropane tetraacrylate and other related polyol acrylates; it's often used for DPHA in technical literature and SDSs). A more specific, though less common, CAS is 60506-81-2.
    • EC Number: 249-708-3
    • Molecular Formula: C28​H34​O13​
    • Molecular Weight: 578.56 g/mol
  • 2. Physical Properties
    • Appearance: Clear, colorless to pale yellow, highly viscous liquid. May appear as a waxy solid at room temperature.
    • Odor: Mild, characteristic, acrylic/ester-like.
    • Melting Point: Often handled at elevated temperatures (e.g., 50-60°C) to reduce viscosity.
    • Boiling Point: >200 °C (>392 °F) (Decomposes)
    • Density: 1.18 - 1.20 g/cm³ at 25 °C
    • Solubility:
    • In Water: Insoluble.
    • In Organic Solvents: Soluble in many common organic solvents (e.g., ketones, esters).
    • Vapor Pressure: <0.01 hPa at 20 °C
    • Viscosity: Extremely high; typically >10,000 mPa·s at 25°C. Often reported at elevated temperatures (e.g., 200-500 mPa·s at 60 °C).
  • 3. Chemical Properties and Stability
    • Stability: Stable under recommended storage conditions. Typically supplied with a polymerization inhibitor (e.g., MEHQ).
    • Incompatibilities: Incompatible with strong oxidizing agents, strong bases, strong acids, reducing agents, peroxides, and free-radical initiators.
    • Hazardous Polymerization: May occur if not properly inhibited or if exposed to high temperatures, direct sunlight, UV radiation, or contaminants. Polymerization is a highly exothermic reaction.
    • Hazardous Decomposition Products: Combustion may produce toxic fumes of carbon monoxide (CO) and carbon dioxide (CO2​).
  • 4. Other Key Data
    • Flash Point: >175 °C (>347 °F) - Closed cup
    • Refractive Index (n20/D): ~1.490
 

MSDS

Dipentaerythritol hexaacrylate--MSDS     Download
 

Certificates Of Analysis

Dipentaerythritol hexaacrylate--COA      Download
 

Application

1. Photocurable coatings and inks
DPHA molecules contain 6 acrylate groups, with fast curing speed and high coating hardness, which meets the scratch resistance requirements of electronic products. They are used to produce mobile phone/automobile UV coatings, 3D printing photosensitive resins, packaging printing inks, wood UV curing coatings, automotive varnishes, mobile phone glass UV anti-fingerprint coatings, UV Curing Resins, wood coating curing agents, and automotive UV coating crosslinking agents.

2. Electronic material manufacturing
DPHA's high refractive index and low shrinkage characteristics are suitable for the micron-level processing requirements of precision electronic components. It is used to produce PCB photoresists, LCD display optical films, semiconductor packaging glues, optoelectronic device sealants, and LED packaging glues.

3. High-performance adhesives
DPHA can replace conventional solvents. The solvent-free and environmentally friendly formula meets the strict standards of the medical and optical industries for low toxicity. It is used to produce medical dental adhesives, optical lens assembly glues, flexible screen OCA glues, UV curing structural glues, VR lens bonding glue, yellowing-resistant UV adhesive monomer, environmentally friendly ink, high refractive index optical glue, electronic component packaging UV resin, dental filling material photocuring agent, medical catheter coating.

4. Printing ink
Packaging printing UV ink, metal/plastic substrate screen printing ink, high gloss ink additive, wear-resistant printing coating, packaging ink photoinitiator.

5. Plastic modification
Plastic toughening agent, multifunctional monomer modifier, PVC hardening modifier, polyurethane composite material curing aid.

6. New energy field
Used for lithium battery material modification, improving high temperature resistance, and producing lithium battery diaphragm UV coating.

Safety Information

  • This information is a summary based on the Globally Harmonized System of Classification and Labelling of Chemicals (GHS).
    • 1. GHS Classification
      • Skin Irritation (Category 2)
      • Serious Eye Damage (Category 1)
      • Skin Sensitization (Category 1)
      • Hazardous to the Aquatic Environment, Acute Hazard (Category 1)
      • Hazardous to the Aquatic Environment, Chronic Hazard (Category 1)
    • 2. GHS Label Elements
      • Pictograms:
        • Corrosion (GHS05)
        • Exclamation Mark (GHS07)
        • Environment (GHS09)
      • Signal Word: Danger
      • Hazard Statements (H-Statements):
        • H315: Causes skin irritation.
        • H317: May cause an allergic skin reaction.
        • H318: Causes serious eye damage.
        • H410: Very toxic to aquatic life with long lasting effects.
      • Precautionary Statements (P-Statements):
      • Prevention:
        • P273: Avoid release to the environment.
        • P280: Wear protective gloves, protective clothing, eye protection, and face protection.
      • Response:
        • P302 + P352: IF ON SKIN: Wash with plenty of soap and water.
        • P305 + P351 + P338 + P310: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER or doctor/physician.
        • P333 + P313: If skin irritation or rash occurs: Get medical advice/attention.
        • P391: Collect spillage.
      • Storage:
      • Store in a cool, dark, well-ventilated place.
      • Disposal:
        • P501: Dispose of contents/container to an approved hazardous waste disposal plant.
    • 3. Summary of Primary Hazards
      • Health Hazards: Causes serious, potentially irreversible, eye damage. Causes skin irritation and is a known skin sensitizer, meaning repeated contact can lead to the development of an allergic skin reaction (contact dermatitis).
      • Environmental Hazards: Very toxic to aquatic life with long-lasting effects. Release into the environment must be strictly avoided.
      • Reactivity Hazards: The product is a highly functional reactive monomer that can undergo hazardous polymerization if not properly stabilized and handled. Keep away from heat, sunlight, and contamination. Its high viscosity can make handling challenging at room temperature.

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