作　　者： ; ;

机构地区： 合肥工业大学化工系

出　　处： 《现代塑料加工应用》 1994年第6期6-9,共4页

摘　　要： 研究了聚甲醛(POM)/低密度聚乙烯(LDPE)/相容剂Z-1共混增容改性。结果表明:Z-1的加入使POM/LDPE共混物中LDPE分散均匀,POM球晶细化,共混物物理、力学性能得到改善,且Z-1用量控制在5％～7％(以100份LDPE计)为最佳。POM/LDPE/Z-1共混物的主要性能指标为:拉伸强度50～60MPa,缺口冲击强度不小于12kJ/m^2,摩擦系数为0.20～0.30,用该共混物制作的小模数齿轮(m=0.5,Z=72)的精度等级达7级(参见GB 2363-80)。 The blending, compatibilizing and modification of the blends of POM/LDPE/compatibilizer Z-1 were studied. The results showed that LDPE were well distributed and POM partides were smaller and regular in POM/LDPE blends by adding Z-1. The physical and mechanical proper ties of POM/LDPE blends were greatly improved when the content of Z-1 were optimally controlled at 5% - 7%(in 100phr LDPE). The main characteristic targets were that the tensile strength was 50 - 60MPa, the notch impact strength ≥12kJ/m2, the frictional coefficient was 0.20 - 0.30. The accuracy grade of small mould number gear (m=0.5, Z=72) by this blend could be Grade 7 (See GB2363- 80).

关 键 词： 聚甲醛 低密度聚乙烯 相容剂 共混

领　　域： [理学] [理学] [化学工程]