STUDIES OF THE EFFECT OF A HARDENER ON SOME PROPERTIES OF EPOXYURETHANE ADHESIVES WITH INCREASED HEAT RESISTANCE.

被引：0
|
作者：
Pavlova, M. [1 ]
Draganova, M. [1 ]
Kabaivanov, V. [1 ]
机构：
[1] Scientific-Industrial Cent for, Special Polymers, Sofia, Bulg, Scientific-Industrial Cent for Special Polymers, Sofia, Bulg
来源：
Polymer communications Guildford | 1988年 / 29卷 / 03期
关键词：
AMINES; -; CATALYSTS; POLYMERS; Hardening; SILANES; SPECTROSCOPY; INFRARED;
D O I：
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学科分类号：
摘要：
The present study deals with the effect of the type and basicity of a hardener on strength parameters and temperature behavior at 200 degree C on epoxyurethane adhesive compositions. For this purpose aliphatic and aromatic amines, acidic anhydrides and amine-containing silanes have been used. The relationship between temperature and efficiency of the hardening catalyst, its basicity and physico-mechanical characteristics of epoxyurethanes has been established. By means of IR spectroscopy, the presence of oxazolidone rings has been shown in the epoxyurethanes under investigation. These rings increase the thermal stability of the epoxyurethanes.
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页码：80 / 82
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