Lifetime Prediction: Different Strategies by Example

被引：0

作者：

Gedde, U. W. ^{[1
]}

Ekelund, M. ^{[1
]}

机构：

[1] Royal Inst Technol, Sch Chem Sci & Engn, SE-10044 Stockholm, Sweden

来源：

POLYMER DEGRADATION AND PERFORMANCE | 2009年 / 1004卷

关键词：

HOT-WATER APPLICATIONS; DENSITY POLYETHYLENE PIPES; NON-ARRHENIUS BEHAVIOR; LONG-TERM PERFORMANCE; CHLOROSULFONATED POLYETHYLENE; ANTIOXIDANT CONSUMPTION; BRANCHED POLYETHYLENE; OXIDATIVE-DEGRADATION; CHLORINATED WATER; POLYOLEFIN PIPES;

D O I：

暂无

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Two different approaches for lifetime prediction are presented. The underlying lifetime limiting processes have been identified in two cases. Mathematical expressions of chemical/physical relevance were used for the lifetime predictions for PE hotwater pipes and cables insulated with plasticized PVC. Accelerated testing, extrapolation and validation of the extrapolation by assessment of the remaining lifetime of objects aged during service conditions for 25 years were successfully applied to cables insulated with chlorosulfonated polyethylene. Polyolefin pipes exposed to chlorinated water showed a very complex deterioration scenario and it was only possible to find a method suitable for predicting the time for the depletion of the stabilizer system.

引用

页码：159 / 169

页数：11

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