为了探究温度变化对聚碳酸酯的影响,设计了三种温度交变环境,即55℃/-18℃之间快速交变、55℃/-18℃之间逐渐交变和45℃(相对湿度60％)/-18℃之间快速交变.研究了聚碳酸酯材料在这三种高低温交变环境中的结构、性能变化.结果表明:在30个温度循环周期内,在设计的三种温度交变环境中聚碳酸酯主要发生了物理老化.
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