ACCELERATOR 1573

ACCELERATOR 1573 flexibilizers for hot curing thermoset formulations improve flexibility during the curing process. They are designed to enhance the mechanical properties of thermoset materials without compromising thermal stability.

Functions: Accelerator, Curing Agent, Hardener, Prepreg, Resins, Binders & Matrix Materials

Chemical Family: Urea & Urea Derivatives

Processing Methods: Prepreg Processing

End Uses: Aerospace Applications

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Enhanced TDS

Identification & Functionality

Blend
No
Chemical Family
Urea & Urea Derivatives
Composite Materials Functions
Accelerator,
Curing Agent,
Hardener,
Prepreg,
Resins, Binders & Matrix Materials
Function
Accelerator,Hardener,Prepreg,Curing Agent
Single Ingredient
Yes
Technologies
Composite Materials
Product Families
Composite Materials — Additives
Functional Additives
Composite Materials — Polymers & Resins
Thermoset Resins
Chemical Structure

ACCELERATOR 1573 - Chemical Structure - 1

Features & Benefits

Product Features
  • Low viscosity
  • High glass transition temperature
  • Excellent mechanical performance
  • Excellent adhesion to reinforcement fibre
Product Characteristics

Urea based ACCELERATOR paste, suggested for use in combination with ARADUR® 1571. Particle size: 98% < 10 μm.

Applications & Uses

Composites End Use
Aerospace Applications
Composites Processing Methods
Prepreg Processing
Markets
Automotive & Transportation
Applications
Automotive & Transportation — Transportation
Aerospace & Aviation
Application Details
  • Formulation of High Performance SMC 
  • Provides very high flexural strength and elongation 
  • Provides high toughness 
  • Provides higher level of glass transition temperature than polyester based SMC system

Properties

Physical Form
Paste,
Powder

Regulatory & Compliance

Chemical Inventories
DSL (Canada),
IECSC (China),
KECI (Korea),
NZIoC (New Zealand),
TCSI (Taiwan),
TSCA (USA)

Technical Details & Test Data

Technical Details

Reactivity vs. Temperature

Its dispersion in standard liquid epoxy resin is stable up to 60°C up to 1 week and up to 6 months at RT while

- 1

Conversion vs. Temperature

Standard liquid epoxy resin cured with ARADUR® 9506 requires only10 min at 110°C to reach 90% of conversion (3x faster than DICY/TDI-Uron)

- 1

Conversion and Tg vs. time of cure at 110°C

- 1

Tougheness and Glass Transition Temperature vs. Flexibilizer content

- 1

  • 500% increase of toughness of standard Hot Melt epoxy resin system ARALDITE® LY 3514/ ARADUR® 1571/ARADUR 1573 formulated only with 5% content of Flexibilizer DY 965
  • Minor impact on Tg up to 5% content of Flexibilizer DY 965

 

ACCELERATORs for Dicyandiamide Hardeners
Product Latency reactivity Impact on mechanical properties Form / processability
ACCELERATOR 1573 Good latency Lower reactivity than TDI-uron at 120°C Similar to TDI-uron Paste (75000 mPa.s): easy to incorporate

 

Packaging & Availability

Regional Availability
  • Americas
  • Asia Pacific
  • Australia
  • EIMEA

Other

Appearance
White ultra fine paste
Color (SDS)
White
Odor (SDS)
Slight
Physical Properties
ValueUnitsTest Method / Conditions
Gel Time15.0-19.0 mmat 130°C, ARALDITE® GY 250
Viscosity60.0-90.0 Pa.sPa.sAt 25°C