以聚乙烯类基质作为支撑材料,石蜡作为相变剂,研究和制备了聚乙烯类/石蜡木塑相变储能材料.研究表明,当石蜡的添加量为25％时,HDPE、LDPE和LLDPE三种基质的石蜡木塑相变储能材料的拉伸强度分别下降了53.18％、60.48％、66.81％,弯曲强度分别下降了67.68％、62.24％、69.07％,力学性质下降均超过50％.性能测试得出HDPE的综合性能较好,在石蜡的添加量为20％时,HDPE、LDPE和LLDPE的相变温度分别为56.27℃、57.87℃、56.62℃,相变焓分别为125.85 J/g、100.30 J/g、124.65 J/g.通过氯仿提取石蜡,研究聚乙烯类基质的包裹性能,结果表明不同的基质都解决了石蜡的渗漏问题.
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