【摘要】 研究了聚砜改性酚醛树脂玻纤增强模塑料在 2 0 0℃、 2 3 0℃的热老化过程中的力学性能、电学性能的变化情况。结果表明 ,热老化后 ,材料的性能 (弯曲强度除外 )虽有所下降 ,但仍能满足使用要求 ,说明此种模塑料具有良好的热稳定性 ,能在 2 0 0℃下长期使用更多还原

【Abstract】 The changes of the mechanical properties and electrical properties of polysulfone modified phenolic resin reinforced with glass fiber during heat ageing at 200℃ and 230℃ were studied The lesults showed although the properties (except for bending strength) of the material decreased after the heat ageing, the material could still meet the service demand The results showed that the molding plastics had excellent heat stability and could be used at 200℃ for a long term更多还原