Artificial aging of high-density polyethylene by ultraviolet irradiation

被引：154

作者：

Carrasco, F

Pagès, P

Pascual, S

Colom, X

机构：

[1] Univ Girona, Dept Chem Engn, Girona 17071, Spain

[2] Univ Politecn Catalunya, Dept Mat Sci, Terrassa 08222, Spain

[3] Univ Politecn Catalunya, Dept Chem Engn, Terrassa 08222, Spain

来源：

EUROPEAN POLYMER JOURNAL | 2001年 / 37卷 / 07期

关键词：

high-density polyethylene; artificial aging; UV irradiation; structural modifications; chemical changes; crystallinity; mechanical properties;

D O I：

10.1016/S0014-3057(00)00251-2

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Artificial aging of high-density polyethylene exposed to UV irradiation, with wavelength close to 350 nm, in the presence of air. has been studied in this paper. Such irradiation is one of the environmental factors which affect most to weather exposed polyethylene. The structural modifications and chemical changes experienced by the polymer by the application of Fourier-transform infrared spectrophotometry( FTIR), mainly polymeric chain breaking, branching and oxidation, have been studied. The variation of crystallinity has also been determined by FTIR. Finally, the evolution of the mechanical properties versus the irradiation time has been closely followed. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：1457 / 1464

页数：8

共 18 条

[1] THE EFFECT OF MOLECULAR-STRUCTURE AND POLYMER MORPHOLOGY ON THE FRACTURE-RESISTANCE OF HIGH-DENSITY POLYETHYLENE [J].