Tetrahydrophthalic Anhydride(THPA) CAS 85-43-8

Tetrahydrophthalic Anhydride (THPA) Comprehensive Guide 2024

Contents

• Product Overview & Specifications
• Applications & Industrial Uses
• Performance Comparison Guide
• Usage Scenarios & Best Practices
• Client Success Stories
• Technical Support & Inquiry

1. Product Specifications (CAS 85-43-8)

2. Industrial Applications

2.1 Epoxy Resin Curing

THPA serves as latent curing agent for powder coatings, offering:

• 120-150°C curing temperature range
• 6-12 month storage stability
• 85-92°C glass transition temperature (Tg)

2.2 Polyester Resins

Enhances electrical insulation properties for:

• Transformer encapsulants (15-25% THPA content)
• Circuit board coatings (surface resistance >1×10¹³ Ω)

4. Implementation Case Studies

Automotive Coatings Optimization

Challenge: Improve scratch resistance (ASTM D3363) while maintaining 30μm film thickness
Solution: 18% THPA-modified alkyd resin formulation
Results: Pencil hardness increased from HB to 2H

5. Verified Client Implementations

Case 1: European Composite Manufacturer

Application: Wind turbine blade coatings
Formulation: 22% THPA + 15% glass fiber reinforcement
Metrics Achieved:
– Salt spray resistance: 2,000hrs (ISO 9227)
– UV stability: 8,000hrs (ASTM G154)

Case 2: Asian Electronics Producer

Application: IC encapsulation compounds
THPA Usage: 30% loading in anhydride-cured epoxy
Performance Gains:
– CTE reduction from 65ppm/°C to 28ppm/°C
– Moisture absorption <0.15% (85°C/85%RH)

6. Technical Consultation

For formulation assistance or material specifications:
Email: info@vivalr.com
Tel: (86) 15866781826
Request SDS/documentation: Quote “THPA-2024”