Acrylated dipentaerythritol (DPHA)

Acrylated Dipentaerythritol (DPHA) is a multifunctional reactive diluent that polymerizes when exposed to sources of free radicals. DPHA is particularly useful in ultraviolet light (UV) and electron beam (EB) curable coatings and inks where improved cure response, hardness, and scratch/abrasion resistance are desired. DPHA is composed predominately of the penta- and hexa-acrylate esters of dipentaerythritol, with the overall composition represented by the included chemical structure.

Principal: allnex Radcure

Chemical Name: Dipentaerythritol penta-/hexa-acrylate

Chemical Family: Acrylics & Acrylates, Pentaerythritol Esters

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Enhanced TDS

Identification & Functionality

Blend
No
CASE Ingredients Functions
Chemical Family
Chemical Name
Function
Reactive Diluent
Product Code
MITM00335
Single Ingredient
Yes
Synonyms
Di(trimethylolpropane) pentaacrylate, Dipentaerythritol monohydroxypentaacrylate, Dipentaerythritol pentaacrylate, DPEPA, DPHPA
Technologies
Product Families
Chemical Structure

Acrylated dipentaerythritol (DPHA) - Chemical Structure - 1

Features & Benefits

CASE Ingredients Features
Performance Highlights
Acrylated dipentaerythritol (DPHA) is characterized by:
  • High acrylate functionality
  • Hydroxyl functionality
  • Very low vapor pressure

UV/EB curable formulated products containing DPHA are characterized by: 

  • Rapid cure response
  • High cross-link density  
  • Improved scratch and abrasion resistance
  • Excellent hardness
  • Good chemical resistance

The actual properties of UV/EB cured products also depend on the selection of other formulation components such as oligomers, additives and photoinitiators.

Applications & Uses

Coating End Applications
Compatible Substrates & Surfaces
Cure Method
Ink & Toner End Applications
Markets
Applications
Product Applications
  • Acrylated Dipentaerythritol (DPHA) is recommended as a reactive diluent for UV/EB curable inks and coatings where fast cure response and high cross-link density are desired, including:
  • Scratch resistant coatings for plastics
  • Lithographic and screen inks

Properties

Physical Form

Technical Details & Test Data

Viscosity vs Temperature

Acrylated dipentaerythritol (DPHA) - Viscosity vs Temperature Graph - 1

Packaging & Availability

Packaging Type

Storage & Handling

Storage Conditions

Acrylated Dipentaerythritol (DPHA) should be taken not to expose the product to high temperature conditions, direct sunlight, ignition sources, oxidizing agents, alkalis, or acids. This might cause uncontrollable polymerization of the product with the generation of heat. Storage and handling should be in stainless steel, amber glass, amber polyethylene, or baked phenolic lined containers. Procedures that remove or displace oxygen from the material should be avoided. Do not store this material under an oxygen-free atmosphere. Dry air is recommended to displace material removed from the container. Wash thoroughly after handling. Keep container tightly closed. Use with adequate ventilation.

Other

Acid Value
max. 10.0 mg KOH/g
Appearance
Clear liquid
Appearance (SDS)
Liquid
Boiling Point (SDS)
212.0 °F
Color (SDS)
Yellowish
Color Scale
max. 3.0 Gardner
Density
1.17 g/mL
Density (SDS)
1.196 g/cm³
Flash Point
min. 100.0 °C
Flash Point (SDS)
min. 100.0 °C
Item Number
Log Partition Coefficient (Log Pow) (SDS)
0.25-4.55
Melting Point (SDS)
-37.0--36.0 °C
Molecular Weight
524.0 g/mol
Odor (SDS)
Ester acrylate
Other Hazards
Polymerization may occur from excessive heat , contamination or exposure to direct sunlight .
Principal
Residual Solvent Content
max. 1.0 %(W/W)
Solubility In Water (SDS)
6.0 mg/L
Vapor Pressure (SDS)
0.013 hPa
Viscosity
12000.0-20000.0 mPa.s
Viscosity (SDS)
13000.0-23000.0 mPa.s
Volatile Content (SDS)
max. 0.5 %(W/W)
Optical Properties
ValueUnitsTest Method / Conditions
Color Scalemax. 3.0 GardnerGardnerGardner Color Scale
Chemical Properties
ValueUnitsTest Method / Conditions
Acid Valuemax. 10.0 mg KOH/gmg KOH/g
Physical Properties
ValueUnitsTest Method / Conditions
Density1.17 g/mLg/mLAt 25°C
Flash Pointmin. 100.0 °C°CSetaflash
Molecular Weight524.0 g/molg/mol
Viscosity12000.0-20000.0 mPa.smPa.sAt 25°C
Material Composition
ValueUnitsTest Method / Conditions
Residual Solvent Contentmax. 1.0 %(W/W)%(W/W)
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Boiling Point (SDS)212.0 °F°Fdecomposes before boiling
Density (SDS)1.196 g/cm³g/cm³
Flash Point (SDS)min. 100.0 °C°CSetaFlash Closed Cup
Log Partition Coefficient (Log Pow) (SDS)0.25-4.55-OECD 117 at 20°C, n-octanol/water
Melting Point (SDS)-37.0--36.0 °C°Cglass transition point
Solubility In Water (SDS)6.0 mg/Lmg/Lat 25°C
Vapor Pressure (SDS)0.013 hPahPaAt 25°C
Viscosity (SDS)13000.0-23000.0 mPa.smPa.sat 25°C
Volatile Content (SDS)max. 0.5 %(W/W)%(W/W)