Investigations of environmental stress cracking resistance of LDPE/UHMWPE and LDPE/EVA blends

被引：11

作者：

Heng, Z. ^{[1
]}

Chen, Y. ^{[1
]}

Zou, H. ^{[1
]}

Liang, M. ^{[1
]}

机构：

[1] Sichuan Univ, Polymer Res Inst, State Key Lab Polymer Mat Engn, Chengdu 610065, Peoples R China

来源：

PLASTICS RUBBER AND COMPOSITES | 2015年 / 44卷 / 06期

基金：

中国国家自然科学基金;

关键词：

LDPE; EVA; UHMWPE; Morphology; Environmental stress cracking resistance; POLYETHYLENE; MORPHOLOGY; GROWTH;

D O I：

10.1179/1743289815Y.0000000017

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

Low density polyethylene (LDPE)/ultrahigh molecular weight polyethylene (UHMWPE) and LDPE/poly(ethylene-co-vinylacetate) (EVA) blends were tested and compared with respect to their environmental stress cracking resistance (ESCR) using the Bell telephone test. The time to failure in the ESCR test improved with increasing UHMWPE and EVA content, and considerable improvements were produced when an UHMWPE weight fraction of 0.4 and EVA weight fraction of 0.03 were used. Thermal and morphological studies were conducted, and a relationship between morphological features and composition was established. Furthermore, the failed specimens were further characterised by scanning electron microscopy and fractographic methodology to investigate the failure mechanism for ESCR samples.

引用

页码：218 / 225

页数：8

共 42 条

[41] Environmental stress cracking resistance of polyethylene: The use of CRYSTAF and SEC to establish structure-property relationships
Soares, JBP
Abbott, RF
Kim, JD
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 2000, 38 (10) : 1267 - 1275
[42] Environmental stress cracking resistance. Behaviour of polycarbonate in different chemicals by determination of the time-dependence of stress at constant strains
Al-Saidi, LF
Mortensen, K
Almdal, K
POLYMER DEGRADATION AND STABILITY, 2003, 82 (03) : 451 - 461

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