抗氧化剂对聚乙烯化学交联反应的影响

2001 Annual Report Conference on Electrical Insulation and Dielectric Phenomena (Cat. No.01CH37225) Pub Date : 2001-10-14 DOI:10.1109/CEIDP.2001.963494

Y. Sekii, Y. Idei, K. Asakawa

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引用次数: 5

摘要

研究了抗氧化剂对交联聚乙烯(XLPE)化学交联性能的影响。用添加酚型、硫型和胺型抗氧化剂的交联XLPE试样在不同温度下进行了实验。通过测定凝胶分数和交联副产物、苯乙酮、cumyl醇和/spl α /-甲基苯乙烯的含量来表征样品。结果表明，硫型抗氧化剂对甲醇的分解影响最大，而胺型抗氧化剂对甲醇的分解影响较小。结合交联温度对交联副产物含量的依赖性数据，探讨了交联反应中抗氧化作用的机理。

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Influence of antioxidants on polyethylene chemical crosslinking reaction

The influence of antioxidants on the chemical crosslinking of crosslinked polyethylene (XLPE) was investigated. Experiments were conducted using XLPE specimens crosslinked at various temperatures with added phenolic, sulfur-type and amine-type antioxidants. Specimens were characterized by measuring the gel fraction and the content of crosslinking byproducts, acetophenone, cumyl alcohol and /spl alpha/-methyl styrene. It was found that sulfur-type antioxidant has the strongest influence on the decomposition of cumyl alcohol, whereas the amine-type had only a minor influence. Taking the data regarding the crosslinking temperature dependence of the crosslinking byproduct content into consideration, the mechanism of antioxidant action in the crosslinking reaction is examined.

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2001 Annual Report Conference on Electrical Insulation and Dielectric Phenomena (Cat. No.01CH37225)

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