Degradation of PVC insulated cable by Small Punch test considering molecular weight change

被引：3

作者：

Yasutomo, Koga ^{[1
]}

Yoshihiko, Arao ^{[1
]}

Masatoshi, Kubouchi ^{[1
]}

机构：

[1] Tokyo Inst Technol, Sch Chem Sci & Engn, Meguro Ku, Tokyo 1528550, Japan

来源：

25TH REGIONAL SYMPOSIUM ON CHEMICAL ENGINEERING (RSCE 2018) | 2019年 / 268卷

关键词：

D O I：

10.1051/matecconf/201926804004

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

PVC used as insulation material for industrial power cable was tried to evaluate degradation by Small Punch test (SP test) as a simple and easy assessment method. It was suggested that the SP test can analyze chemical changes from the correlation with IR. Qualitative assessment shows agreement between SP test and tensile test, and it is possible to apply to evaluation of strength at long aging times. However, the failure load in the SP test samples is complex and scattered, so that detailed study on SP test is required. Thus, we focused chemical reaction mechanisms and tried to clarify their influence on SP behavior. Molecular weight change was measured for each aging time by SEC and discussed how polymer chains are cut based on IR result. We discuss the relationship between molecular weight and the mechanical properties of PVC by SP test. The effectiveness of SP test as the evaluation method for residual life prediction will be addressed.

引用

页数：3

共 6 条

[1] Long-term performance of poly(vinyl chloride) cables. Part 1: Mechanical and electrical performances [J].