原包HDPE Marlex 5502-01ST

优点: 无毒柔软无味防火耐磨耐热耐寒耐酸耐碱阻燃高硬度食品级高刚性高韧性

电绝缘耐腐蚀耐老化高流动耐水解高强度耐候性低收缩高抗冲尺寸稳定吸水性低

渗透性小蠕变性好化学稳定高介电性抗紫外线耐应力开裂

介绍:

HDPE的独有特性是四种基本变量的适当结合：密度、分子量、分子量分布和添加剂。不同的催化剂被用于生产定制特殊性能聚合物。这些变量相结合生产出不同用途的HDPE品级；在性能上达到佳的平衡。

HDPE特性的主要变量，虽然被提到的4种变量确实起到相互影响作用。乙烯是聚乙烯主要原料，少数的其它共聚单体，如1一丁烯、l一己烯或1一辛烯，也经常用于改进聚合物性能，

HDPE，少数单体的含量一般不超过1%－2%。共聚单体的加入轻微地减小了聚合物的结晶度。这种改变一般由密度来衡量，密度与结晶率呈线性关系。

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详解:

‘Well, you're going to have to kill me, because it's gone!’ Harry roared and, as he shouted it, pain seared across his forehead; his scar was on fire again, and he felt a surge of fury that was quite unconnected with his own rage. ‘And he knows!’ said Harry, with a mad laugh