VARIATIONS IN THE FRACTURE-BEHAVIOR OF POLYETHYLENE PIPE MATERIALS INDUCED BY THERMAL TREATMENTS

被引：6

作者：

BRAGA, MR ^{[1
]}

RINK, M ^{[1
]}

PAVAN, A ^{[1
]}

机构：

[1] POLITECN MILAN,DIPARTIMENTO CHIM IND & INGN CHIM,PIAZZA LEONARDO VINCI 32,I-20133 MILAN,ITALY

来源：

POLYMER | 1991年 / 32卷 / 17期

关键词：

FRACTURE; THERMAL TREATMENT; POLYETHYLENE;

D O I：

10.1016/0032-3861(91)90136-7

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The effect of thermal treatments on fracture behaviour of commercial pipe-grade high density polyethylenes was studied. Fracture resistance curves, i.e. fracture toughness versus crack growth curves, were experimentally constructed at -60-degrees-C and 23-degrees-C and the parameters characterizing fracture initiation and propagation were determined. In addition, a qualitative fracture surface analysis was carried out. Fracture behaviour appears to be complex rather than simply related to the more prominent structural features affected by thermal treatment.

引用

页码：3152 / 3161

页数：10

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