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人们日常使用塑料袋所用的原料是聚乙烯,其分子量较少,而聚乙烯在低压聚合条件下,分子量可以达到数百万之多,聚乙烯因其高密度而会变得坚硬无比,这样的超高分子量聚乙烯制成的纤维即使用剪刀也不易剪断,强度之高是钢丝的8倍,而重量却只有钢丝的1/8。正是具有这样的特性,超高分子量聚乙烯纤维已经成为世界高新技术产业的重要新材料之一,与碳纤维、芳纶并称为三大高性能纤维,广泛应用于军事、航天、舰船,以及休闲娱乐等军工、民用领域。
People use plastic bags for everyday use of raw materials is polyethylene, its molecular weight is less, and polyethylene under low pressure polymerization conditions, the molecular weight can reach millions, polyethylene because of its high density will become extremely hard, so Made of ultra-high molecular weight polyethylene fiber using scissors is not easy to cut, the strength of the wire is 8 times the weight of the wire is only 1/8. It is such a characteristic that UHMWPE fiber has become one of the most important new materials in the world’s high-tech industry. It is also known as carbon fiber and aramid fiber and is widely used in military, aerospace, shipbuilding, As well as leisure and military and civilian fields.