灰分对PVC-U管材性能的影响及其测试方法研究  

Study on Effect of Ash on Properties of PVC-U Pipes and Its Testing Method

作　　者：蔡豪坤 李颂民 蒋仲义 Cai Haokun;Li Songmin;Jiang Zhongyi(Ningbo Academy of Product and Food Quality Inspection(Ningbo Fiber Inspection Institute),Ningbo,Zhejiang,315048)

机构地区：[1]宁波市产品食品质量检验研究院(宁波市纤维检验所),浙江宁波315048

出　　处：《现代塑料加工应用》2023年第3期41-43,47,共4页Modern Plastics Processing and Applications

基　　金：宁波市领军和拔尖人才培养工程项目(2017145)。

摘　　要：采用马弗炉法测试了12种硬质聚氯乙烯(PVC-U)管材的灰分,研究了灰分含量对PVC-U管材性能的影响,对比分析了马弗炉法和管式炉法的准确性和适用条件。结果表明:随着灰分含量的增加,PVC-U管材的密度逐渐增大,拉伸性能逐渐变差。当样品质量为1.0 g时,采用管式炉法和马弗炉所得数据很相近。在灰分含量较低区域,采用管式炉法测试3次所得数据的均匀性好于马弗炉法,而在灰分含量较高区域,采用马弗炉法所得数据的均匀性更好。The ash content of 12 types of rigid polyvinyl chloride(PVC-U)pipes was tested using the muffle furnace method,and the effect of ash content on the properties of PVC-U pipes was studied.The accuracy and applicability of the muffle furnace method and the tube furnace method were compared and analyzed.The results show that with the increase of ash content,the density of PVC-U pipes gradually increases and the tensile property gradually deteriorates.When the sample mass is 1.0 g,the data obtained using the tube furnace method and the muffle furnace method are relatively similar.In areas with low ash content,the uniformity of the data obtained from three tests using the tube furnace method is better than that using the muffle furnace method,while in areas with high ash content,the uniformity of the data obtained using the muffle furnace method is better.

关 键 词：聚氯乙烯 拉伸屈服应力 断裂伸长率 灰分 马弗炉法 管式炉法 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]