【摘要】 用脂肪族二元酸与二元醇以熔融缩聚合成了适用于聚氨酯胶粘剂用的聚酯二醇，接着在环己酮中与二苯甲烷二异氰酸酯（MDI）和扩链剂，采用溶液一步法合成了适合于磁浆专用的高性能聚氨酯胶粘剂。讨论了原料比、投料次序、反应温度和时间、和溶剂种类等对聚氨酯胶粘剂性能的影响。考查了磁记录材料对胶粘剂性能的特殊要求。更多还原

【Abstract】 A polyester for POlyrulethane adhesive were synthesized, and the synthetic process of PU adhesivefor magnetic tapes was introduced. The influences of the raw materials, reaction temperature andtime the mole ratio between NCO to OH, and sovents on the synthesis and properties of thepolyurethane adhesive were discussed. The essential POints of adhesive properties for magnetic tapewere also examined.更多还原