Physical ageing of organic coatings

被引：105

作者：

Perera, DY ^{[1
]}

机构：

[1] Coatings Res Inst CoRI, B-1342 Limelette, Belgium

来源：

PROGRESS IN ORGANIC COATINGS | 2003年 / 47卷 / 01期

关键词：

physical ageing; thermal stress; enthalpy relaxation; thermal and hygroscopic history; organic coatings;

D O I：

10.1016/S0300-9440(03)00037-7

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Physical ageing, a phenomenon that occurs in any organic coating in its glassy state, affects practically all of material's characteristics, such as mechanical, thermal and electrical. This paper reviews the present knowledge on the origin of the "physical ageing" and its effect on the coatings' properties, such as enthalpy relaxation, film contraction, elastic modulus, thermal expansion coefficient, stress relaxation, ultimate properties and thermal stress. The techniques to study and quantify the physical ageing, the influence of coating composition and binder structure, and the role of this phenomenon in coating failure are also discussed. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：61 / 76

页数：16

共 149 条

[1] Physical aging of polystyrene investigated by dynamic viscoelasticity [J].