超高分子量聚乙烯异形件耐磨板的优点
超高分子量聚乙烯异形件耐磨板的优点有哪些？
UHMWPE高分子量(分子量通常只有2 ~ 30万的HDPE)以其优秀的使用性能，属于价格适中、性能良好的热塑性工程塑料，它集中了各种塑料的优点，几乎具有普通聚乙烯和其他工程塑料无法比拟的耐磨性、抗冲击性、自润滑性、耐腐蚀性、吸收冲击能量、耐低温、卫生、无毒、不易粘连、吸水性小、密度大等综合性能。事实上，没有简单的高分子材料具有如此多的优异性能。
What are the advantages of ultra-high molecular weight polyethylene shaped wear-resistant plates?
UHMWPE, with a high molecular weight (usually only 20-300000 HDPE) and excellent performance, is a thermoplastic engineering plastic with moderate price and good performance. It combines the advantages of various plastics and has almost unparalleled wear resistance, impact resistance, self-lubrication, corrosion resistance, impact energy absorption, and low resistance compared to ordinary polyethylene and other engineering plastics
Comprehensive properties such as temperature, hygiene, non-toxic, non adhesive, low water absorption, and high density. In fact, no simple polymer material has so many excellent properties.
超高分子量聚乙烯的特性：
1、超高分子量聚乙烯板耐磨耐损，且分子量越大，材料的耐磨性和抗冲击性越高；用于很多的机械轨道。
2、超高分子量聚乙烯板的冲击强度是现有塑料中的高值，即使在70℃时仍有相当高的冲击强度；
3、自润滑；
4、吸水率极低。因此，其物理机械性能与使用的工作条件中的湿度因素无关；
5、超高分子量聚乙烯板化学性稳定，在一定的温度，浓度范围内能耐酸、碱、盐等各种腐蚀性介质及有机溶剂的腐蚀；
6、超高分子量聚乙烯板无味、无毒、无嗅，本身无腐蚀性，具有生理循环性和生理适应性.
7、不粘附性；
8、高密度聚乙烯分子量超过50万时，脆化温度降至140℃。超高分子量聚乙烯甚至可以在液氮作用下，其使用温度可达269以下℃，仍有一定的机械强度。
超高分子聚乙烯板具有许多优异的性能，然而如此优异的工程塑料却很少有人知道它的存在，这主要是由于以前对超高分子量聚乙烯的熔体特性研究不足，加工方法基本上还停留在落后的压制一烧结工艺上。近年来，随着超高分子量聚乙烯加工技术的不断发展，其制品已在许多领域中获得了成功的应用。
Characteristics of ultra-high molecular weight polyethylene:
1. Ultra high molecular weight polyethylene sheet is wear-resistant and wear-resistant, and the larger the molecular weight, the higher the wear resistance and impact resistance of the material; Used for many mechanical tracks.
2. The impact strength of ultra-high molecular weight polyethylene sheet is the highest among existing plastics, and it still has a relatively high impact strength even at 70 ℃;
3. Self lubrication;
4. The water absorption rate is extremely low. Therefore, its physical and mechanical properties are independent of the humidity factor in the working conditions used;
5. Ultra high molecular weight polyethylene sheet has stable chemical properties and can withstand corrosion from various corrosive media such as acids, alkalis, salts, and organic solvents within a certain temperature and concentration range;
6. Ultra high molecular weight polyethylene sheets are odorless, non-toxic, odorless, and inherently non corrosive, with physiological cycling and adaptability
7. Non adhesion;
8. When the molecular weight of high-density polyethylene exceeds 500000, the embrittlement temperature drops to 140 ℃. Ultra high molecular weight polyethylene can even be used at temperatures below 269 ℃ under the action of liquid nitrogen, and still has a certain degree of mechanical strength.
Ultra high molecular weight polyethylene (UHMWPE) sheets have many excellent properties, but few people are aware of their existence as such excellent engineering plastics. This is mainly due to insufficient research on the melt properties of UHMWPE in the past, and the processing methods are basically still lagging behind in the pressing sintering process. In recent years, with the continuous development of ultra-high molecular weight polyethylene processing technology, its products have been successfully applied in many fields.
