PE hot melt adhesive powder for anticorrosive pipes

一种防腐管道用pe热熔胶粉末

Abstract

本发明公开了一种防腐管道用PE热熔胶粉末,它是由下述重量份的原料组成的:高密度聚乙烯70-80、三元乙丙橡胶10-15、热塑性聚氨酯弹性体(德国巴斯夫S90A)3-5、聚丙烯酸丁酯3-4、聚酰胺蜡微粉2-3、2-硫醇基苯骈咪唑1-2、己二酸丙二醇聚酯2-3、过氧化氢二异丙苯0.2-0.3、纳米碳粉0.1-0.2、增粘剂3-5;本发明制备的热熔胶粉末具备很好的力学性能、干粉流动性、流平性、耐应力开裂性,适合撒粉工艺、火焰喷涂工艺,有非常高的粘接强度,特别适合作为大口径普通钢管及金属构件的防腐层使用。
A disclosed PE hot melt adhesive powder for anticorrosive pipes is composed of the following raw materials in parts by weight: 70-80 parts of high-density polyethylene, 10-15 parts of ethylene-propylene-diene monomer, 3-5 parts of thermoplastic polyurethane elastomer (German BASF S90A), 3-4 parts of butyl acrylate, 2-3 parts of polyamide wax micro powder, 1-2 parts of 2-mercaptobenzimidazole, 2-3 parts of polypropylene adipate, 0.2-0.3 part of diisopropylbenzene hydroperoxide, 0.1-0.2 part of nanometer carbon powder and 3-5 parts of a tackifier. The prepared hot melt adhesive powder has excellent mechanical properties, dry-powder fluidity, leveling property and stress cracking resistance, is applicable to powder spreading technology and flame spraying technology, has extremely high adhesion strength, and is especially applicable to coatings of large-diameter common steel pipes and metal members.

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