水性聚氨酯材料范文

水性聚氨酯材料范文
摘要
水性聚氨酯是一种具有优异性能的新型复合材料，它的发展具有重大意义。

本文通过介绍水性聚氨酯的原理，结构，性能和应用，分析了其成为一种新型复合材料的原由。

本文进一步讨论了水性聚氨酯材料在建筑，木材，油漆，合金和船体防腐等领域的应用，并重点讨论了水性聚氨酯的优势，指出了其在市场需求中的重要地位。

本文的研究成果表明，水性聚氨酯材料具有良好的耐热性，耐腐蚀性，良好的力学性能，可以满足当今复合材料的发展需求。

关键词：水性聚氨酯、新型复合材料、应用
Introduction
Waterborne polyurethane is produced by reacting polyol with isocyanate in water. The reaction forms a cross-linked and three-dimensional network polymer. The degree of cross-linking depends on the amount of isocyanate and the type of curative used. The structure of polyurethane is a network structure, and the repeating unit of the main chain is two kinds of urethane groups and urea groups.
Application
1、Building materials. Waterborne polyurethane has outstanding waterproof and breathable properties. Therefore, it has been widely used in building materials such as waterproof membranes, foundations and floor materials. Waterborne
polyurethanes can not only protect buildings from rain and water, but also prevent the formation of mold and mildew due to moisture.
2、Wood materials. Waterborne polyurethane has great advantages in waterproof, wear resistance and adhesion. Therefore, it has been widely used in wood materials such as furniture, flooring and interior decoration materials. Waterborne polyurethanes can not only protect the wood materials from water and moisture, but also make them more beautiful and strong.
3、Paints. Waterborne polyurethane can be used to make all kinds of paints, such as indoor and outdoor paints, oil paints and water-based paints. It can effectively protect the surface
of the building and make it durable and beautiful.。