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探讨了采用双螺杆挤出机生产中华A1-下护板改性聚丙烯(PP)专用料的配方和工艺,分析了增强剂玻璃纤维、增韧剂(乙烯/辛烯)共聚物(POE)和偶联剂对改性PP材料拉伸强度、缺口冲击强度、弯曲弹性模量、耐热性等性能的影响,选择了最佳的下护板专用料配方。采用新研制的下护板改性PP专用料生产的下护板可满足中华A1-下护板的使用要求。
The formulation and process of producing China A1 - underguard modified polypropylene (PP) by using twin screw extruder were discussed. The effects of reinforcing agent glass fiber, toughening agent (ethylene / octene) copolymer (POE) And coupling agent on modified PP material tensile strength, notched impact strength, flexural modulus, heat resistance and other properties, choose the best under the fender special formula. The newly developed lower guard plate modified PP special material production of the lower guard plate to meet the use of China A1- under the guard plate.