聚氨酯改性环氧树脂的研究进展

The Advance in Modification of Epoxy Resin by Polyurethane

环氧树脂具有优异的粘接性能和力学性能因而被广泛应用,但其耐热性差、脆性大等缺陷限制了其在高性能领域中的应用。聚氨酯具有高弹性、耐磨、抗撕裂等特点,且与环氧树脂相容性好。因此,利用聚氨酯改性环氧树脂能显著提高其力学性能,实现环氧树脂在众多领域的应用。本文综述了不同类型的聚氨酯改性环氧树脂的进展,指出了不同类型的聚氨酯改性环氧树脂的机理、改性效果及影响因素,并对其发展前景进行展望。

Epoxy resin has been widely used due to its excellent adhesion and mechanical properties.But its major defects such as poor heat resistance and brittleness limit its field of application in high performance.Polyurethane has a high elasticity,abrasion resistance,tear resistance and other characteristics,and good compatibility with epoxy resin.The mechanical properties of epoxy resin modified by polyurethane can significantly improve to achieve the application in many fields.The research progresses of epoxy r...