Hardener system for electrical grade epoxy resin compounds that initiates cross-linking polymerization for permanent insulation properties.
A precisely formulated chemical component system designed specifically for electrical grade epoxy resin compounds, containing catalysts, accelerators, and modifiers that initiate and control the cross-linking polymerization reaction to transform liquid resin into solid, thermally stable, electrically insulating material with specific dielectric, mechanical, and thermal properties required for electrical applications.
诱因 → 失效模式 → 工程缓解
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Electrical grade hardeners are specifically formulated with ultra-low ionic impurities (<50 ppm chloride, <10 ppm sodium), controlled dielectric properties (εr 3.0-4.0), and superior thermal stability (>150°C) to prevent electrical tracking, partial discharge, and thermal degradation in high-voltage applications.
Hardener chemistry directly determines dielectric strength (15-25 kV/mm), dissipation factor (<0.01 at 1 MHz), volume resistivity (>10¹⁴ Ω·cm), and glass transition temperature (Tg 100-180°C). Anhydride hardeners typically provide better high-temperature performance while amine hardeners offer faster curing.
Store in sealed containers at 15-25°C with <40% relative humidity, protected from moisture absorption. Shelf life is typically 6-12 months. Moisture-contaminated hardeners can cause incomplete curing, reduced dielectric strength, and void formation.
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说明目标数量、应用场景、交期和关键技术要求，用于准备 RFQ 或供应商评估。