加工温度对氯化聚氯乙烯凝胶度及力学性能的影响

Effect of Processing Temperature on Gelation Degree and Mechanical Properties of CPVC

采用差示扫描量热法测定了不同加工温度时氯化聚氯乙烯(CPVC)的凝胶度,并对其凝胶度与材料力学性能的关系进行了研究。结果表明,加工温度从170℃升高到180℃时,CPVC的凝胶度由47.2%增至76.5%,当凝胶度为61.9%时,力学性能最优。

The gelation degree of CPVC at different processing temperatures was tested using DSC, and the relationship between the gelation degree and mechanical properties was studied. It showed that when the processing temperature increased from 170 to 180 ℃, the gelation degree increased from 47.2% to 76.5 %. CPVC exhibited best mechanical properties when the gelation degree was 61.9%.