松香基聚氨酯的研究进展

Research Progress of Rosin-based Polyurethane

综述了近年来松香在溶剂型聚氨酯、水性聚氨酯、无溶剂型聚氨酯和非异氰酸酯型聚氨酯4个方面的改性方法,发现松香及其衍生物既能有效减少合成溶剂型聚氨酯所需石化原料的用量,还可提高环保型聚氨酯的耐水性能、热力学性能和机械性能,但是仍存在改性聚氨酯手段单一、松香基多元醇相对分子质量较小、反应条件苛刻、应用还不广泛等问题,并对松香改性聚氨酯的发展趋势和研究方向做出展望。

The modification methods of rosin in solvent-based polyurethanes,waterborne polyurethanes,non-solvent polyurethanes,and non-isocyanate-based polyurethanes in recent years were reviewed.It is concluded that rosin and derivatives can effectively reduce the amount of the petrochemical and improve the water resistance,thermodynamic performance and mechanical properties.Meanwhile,there are still some problems,such as simple modification method,low molecular weight of rosin-based polyol,single application direction.The development trend and research direction of the rosin-modified polyurethanes are proposed.