硅灰石/硬脂酸稀土改性PVC-U给水管材的研究  

Study on the modified PVC-U running water pipe by REst/wollastonite

作　　者：杨中文[1] 刘西文[1] 陈兴华[1] 

机构地区：[1]湖南科技职业学院,湖南长沙410118

出　　处：《国外塑料》2008年第5期77-80,共4页

摘　　要：将硅灰石经硬脂酸稀土改性后,用于填充PVC-U给水管材,并对管材性能进行分析,结果表明:改性硅灰石可以提高管材的落锤冲击强度及拉伸强度,且硅灰石细度越细,提高越显著。当粒径在3μm左右的硅灰石,质量份数为25时,落锤冲击强度达到1%。同时还使管材的维卡软化温度提高到92.4℃,纵向回缩率降低至1.03%。Using REst treated wollastonite and then put it into PVC-U running pipe material, the PVC-U running pipe properties were tested. The result showed that treated wollastonite can improves drop-hammer impact strength and tensile strength, the smaller the particle of wollastonite, the more remarkable the effect. When the particle is 3 μm around, parts by mass equal 25, the drop-hammer impact strength can be 0%, meanwhile it＇ s Vicat softening temperature（VST） of pipe can raised up to 92.4℃, longitudinal shrinkage can be decreased to 1.03%.

关 键 词：硅灰石 硬脂酸稀土 PVC-U给水管材 落锤冲击强度 维卡软化温度 纵向回缩率 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业] TU991.36[建筑科学—市政工程]