Studies on the thermal ageing of organic coatings

被引：0

作者：

Holzhausen, U ^{[1
]}

Millow, S

Adler, HJP

机构：

[1] Inst Lacke & Farben eV, Inst Varnishes & Paints Inc Soc, Magdeburg, Germany

[2] Dresden Univ Technol, Inst Macromol Chem & Textile Chem, Dresden, Germany

来源：

MACROMOLECULAR SYMPOSIA | 2002年 / 187卷

关键词：

D O I：

10.1002/1521-3900(200209)187:1<939::AID-MASY939>3.0.CO;2-E

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 ageing of organic protective coatings depends on environmental impacts and is associated with a variety of ichemical and physical processes. The results of former thermal ageing studies indicate that evaporation and polymer degradation are the decisive processes for changes in coating properties. For the verification of these assumptions the impact of the thermal exposure temperature T-L and the length of the exposure time t(L) on properties of clear lacquer coatings was determined by further studies. The gradation of T-L was aimed at creating conditions where on the one hand only evaporation processes occur, while on the other hand evaporation and polymer degradation reactions occur in parallel. The objective was to find the time t(L) and the temperature T-L at which degradation starts to prevail.

引用

页码：939 / 951

页数：13