聚氨酯/双酚A环氧树脂互穿网络体系力学性能研究

EEHANICAL PROPERTIES OF INTERPENETRATING POLYMER NETWORKS OF POLYURETHANE AND EPOXY RESIN OF BISPHENOL A

用同步法合成了聚酯型聚氨酯／双酚A环氧树脂互穿网络聚合物IPN，测定了产物的力学性能，探讨了IPN中聚氨酯对环氧树脂的增韧过程．结果表明：当IPN中聚氨酯／环氧树脂＝15／100（质量比）时，增韧效果较为理想，产物的综合力学性能最佳．而且通过IPN增韧法与半－IPN增韧法对比，发现IPN的综合增韧效果优于半－IPN．

Simultaneously interpenetrating polymer networks are prepared from polyester -urethane (s) (PU) and epoxy resin of bisphenol A (EP). Mechanical properties of IPNs lave been measured. The results showed that When PU/EP=15/85 (W) in IPNs,the toughening effect is very good and the mechanical properties is the best. Moreover,it is found that the comprehensive effect in INPs is better than semi-IPNs by comparison of the mechanical properties.