Post-crosslinking of water-borne urethanes

被引：49

作者：

Coogan, RG ^{[1
]}

机构：

[1] Zeneca Resins, Wilmington, MA 01887 USA

来源：

PROGRESS IN ORGANIC COATINGS | 1997年 / 32卷 / 1-4期

关键词：

water-borne polyurethanes; coating properties; chemical resistance; crosslinking;

D O I：

10.1016/S0300-9440(97)00010-6

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Water-borne polyurethanes are used as coatings because of their high performance. Polyurethanes deliver excellent abrasion resistance, tensile strength, impact strength and good low temperature flexibility. Due to process considerations, most water-borne urethane dispersions are linear thermoplastic polymers which can only contain low levels of pre-crosslinking. To improve chemical resistance, urethane dispersions can be post-crosslinked during or after film formation by a variety of crosslinkers. This paper will review the effects on coating properties after crosslinking with melamine, aziridine, epoxy silane, carbodiimide or water-dispersed isocyanate. (C) 1997 Elsevier Science S.A.

引用

页码：51 / 63

页数：13