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尼龙 10 10是我国首创的一种性能优良的工程塑料。为提高其干态和低温冲击韧性 ,用 BrabenderPL E331型塑化仪制备了 PA10 10 / MGEPR共混物 ,讨论了配料方式、MGEPR用量、丁基橡胶用量、螺杆转速等对共混物冲击强度、拉伸强度等力学性能的影响。结果表明 ,如采用 PA10 10 / MGEPR(2 )和PA10 10 / MGEPR(4)共混体系 ,则冲击强度较 PA10 10有明显提高 ;当螺杆转速为 37r/ min～ 4 7r/ min时 ,混合效果较好 ;当丁基橡胶为乙丙橡胶 (EPR)含量的 10 % (质量 )时 ,共混物的冲击强度优良
Nylon 10 10 is our first kind of excellent performance engineering plastics. In order to improve its dry and low temperature impact toughness, the PA10 10 / MGEPR blends were prepared by Brabender PL E331 plasticizer. The effects of the ingredients, the amount of MGEPR, the amount of butyl rubber and the screw speed on the impact strength, Tensile strength and other mechanical properties. The results showed that the impact strength of PA10 10 / MGEPR (2) and PA10 10 / MGEPR (4) blends was significantly higher than that of PA10 10. When the screw rotation speed was 37r / min ~ 47r / min, the mixing effect Better; when the butyl rubber is 10% by mass of the ethylene-propylene rubber (EPR) content, the impact strength of the blend is excellent