环保型透明双组分改性聚氨酯胶黏剂的研究

CIESC Journal

环保型透明双组分改性聚氨酯胶黏剂的研究

杜郢，龚建贤，高国生

江苏工业学院化工系

出版日期:2010-07-28 发布日期:2010-12-30

Study on contamination–free and transparent two–component
PU adhesive

DU Ying，GONG Jianxian，GAO Guosheng

Jiangsu Polytechnic University

Online:2010-07-28 Published:2010-12-30

摘要/Abstract

摘要： 报道了一种无溶剂、双组分、透明环氧改性聚氨酯胶黏剂，利用红外光谱法跟踪探讨了合成机理，分析了各基团之间的化学反应及其产物随时间的变化。结果表明：改性后聚氨酯的许多性能得到改进；在最佳原料配比及适宜的实验条件下，产品黏度适中，流动性好，性能稳定，储存期长；在m（合成环氧改性聚氨酯）∶m（固化剂）=5∶3的条件下，室温表干时间约45 min，剪切强度大于19 MPa，产品为韧性，耐溶剂、耐温性优良，固化过程中不起泡，用于粘接及灌封时美观。

Abstract: A two-component, solvent-free, transparent, epoxy resin modified polyurethane adhesive is introduced in this paper. The mechanims of PU/EP synthesis was tracked by IR spectroscopy. The chemical reactions among groups and the change of products with time were analyzed. The result showed that several properties of modified products were greatly improved. Under the suitable raw material ratio and experiment condition, the viscosity, flow ability, stability, storage life, were satisfactory. When PU/EP curing agent was 5∶3, the skin drying time was 45min, the shearing intensity was more than 19MPa, the product was tough, solvent resistant and temperature resistant. During curing process no bubble was created, which was good for usein bonding and sealing.

杜郢，龚建贤，高国生. 环保型透明双组分改性聚氨酯胶黏剂的研究 [J]. CIESC Journal.

DU Ying，GONG Jianxian，GAO Guosheng. Study on contamination–free and transparent two–component
PU adhesive
[J]. .