摘要
以甲苯二异氰酸酯(TDI)、混合型亲水聚醚多元醇、三羟甲基丙烷(TMP)、1,4-丁二醇(BDO)和3,3'-二氯-4,4'-二氨基-二苯基甲烷(MOCA)等为主要原料,采用预聚体法合成了双组份遇水膨胀聚氨酯弹性体。研究了聚醚多元醇配比,异氰酸酯含量,扩链剂种类及配比等对弹性体性能的影响。结果表明:当聚乙二醇/聚丙二醇质量比是80/20,游离异氰酸酯质量分数是4.2Wt%时,弹性体的综合性能好;用TMP/MOCA作混合扩链剂比TMP/BDO作混合扩链剂的弹性体机械性能好。
Using toluene diisocyanate(TDI), hybrid hydrophilic polyether polyols, trimethylolpropane(TMP) and 1, 4- butanediol(BDO) and 3, 3 '- dichloro- 4, 4'- diamino diphenyl methane(MOCA), as the main raw materials, to prepare single-component water swelling polyurethane elastomer by using prepolymers method. The results show that the preferably comprehensive performance of elastomer is achieved when the weight of polyethylene glycol and polypropylene glycol ratio is 80/20 and the cyanate resin mass fraction is 4.2Wt%, and the elastomer performance using mixed TMP/MOCA chain extender is better than using TMP/BDO.
出处
《胶体与聚合物》
2014年第2期78-80,共3页
Chinese Journal of Colloid & Polymer
基金
广东省科技厅重大项目(2012A011100001)
关键词
遇水膨胀
聚氨酯弹性体
预聚体法
性能研究
Water Swellable
Polyurethane Elastomer
Prepolymer Method
Performance Study
