摘要
本研究以多亚甲基多苯基多异氰酸酯(PM200)、蓖麻油和聚丙二醇(PPG-600)为主要原料合成木材用单组分湿固化聚氨酯胶粘剂,蓖麻油和PPG-600可以改善胶粘剂的粘度、耐水性和粘接强度,催化剂可以提高胶粘剂的固化速度。该胶粘剂粘接性能好,固化速度快,不含有机溶剂,反应活性高,可用于异种木材和高含水率木材粘接。
In this study,polymethylene polyphenyl polyisocyanate( PM200),castor oil and polypropylene glycol( PPG-600) were used as main raw materials to synthesize one-component wet-curable polyurethane adhesives for wood. Castor oil and PPG-600 could improve the viscosity,water resistance and bonding strength of the adhesives,and catalyst could improve the curing speed of the adhesives. The adhesive has good bonding property,fast curing speed,no organic solvent and high reactivity,and can be used for bonding of dissimilar wood and high moisture content wood.
引文
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