摘要
以 1,2 -丙二醇醇解废旧聚氨酯得到多元醇混合物和胺类化合物 ,红外光谱法分析了多元醇混合物。以多元醇混合物为基础原料 ,与甲苯二异氰酸酯 (TDI)合成聚氨酯预聚体作为聚氨酯胶粘剂的甲组分 (羟基组分 ) ,再用TDI的乙酸乙酯溶液作为聚氨酯胶粘剂的乙组分 (固化剂 ) ,从而形成一种双组分聚氨酯胶粘剂。研究了两组分的配比关系及各种添加剂用量对聚氨酯胶粘剂性能的影响。
Polyurethane foam wastes were recycled by alcoholysis with 1,2-propanediol. Polyol and amine compound were gained. Polyol compound was analyzed by infrared spectrum. Polyurethane prepolymer was prepared by polyol compound and TDI as A component ( OH component), and the ethyl acetate solution of TDI ( -NCO component ) was prepared as B component (hardener) respectively. Then two-component polyurethane adhesive was gained. The effects of the ratio of the two components and the content of other additives on the properties of the adhesive were also studied.
出处
《现代塑料加工应用》
CAS
2004年第1期15-17,共3页
Modern Plastics Processing and Applications
