檢視高密度聚乙烯的原始碼

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中文名；高密度聚乙烯

英文名；High Density Polyethylene"

别称；低压乙烯

熔点；130℃

密度；0.941~0.960
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'''高密度聚乙烯'''（HDPE），为白色粉末或颗粒状产品。无毒，[[无味]]，结晶度为80%～90%，软化点为125～135℃，使用温度可达100℃；硬度、拉伸强度和蠕变性优于低密度聚乙烯；耐磨性、电绝缘性、韧性及耐寒性较好；化学稳定性好，在室温条件下，不溶于任何有机溶剂，耐酸、碱和各种盐类的腐蚀；薄膜对水蒸气和空气的渗透性小，吸水性低；耐老化性能差，耐环境应力开裂性不如[[低密度聚乙烯]]，特别是热氧化作用会使其性能下降，所以树脂中须加入抗氧剂和紫外线吸收剂等来改善这方面的不足。高密度聚乙烯薄膜在受力情况下热变形温度较低，应用时要注意。<ref>[https://wenku.so.com/d/d9a972231f1cb195faf57b72539c6292 高密度聚乙烯 ],360搜索 , 2018-09-03</ref>