1.安徽大学 化学化工学院，安徽 合肥 230601;2.安徽省水基高分子材料高性能化工程实验室，安徽 合肥 230601
以聚己二酸-1,4-丁二醇酯二醇(PBA)、异佛尔酮二异氰酸酯(IPDI)、二羟甲基丙酸(DMPA)等为原料，酒石酸与聚乙二醇直接反应合成的酒石酸聚乙二醇酯(TPEG)为交联剂，制备出交联型水性聚氨酯(TPWPU)织物涂层剂。通过1H-NMR、FT-IR对合成的TPEG进行了结构表征，通过粒径、吸水率、水接触角、拉伸等测试对TPWPU乳液、涂膜性能展开分析，通过耐静水压和透湿率测试对涂层织物的防水透湿性能进行了探究。结果表明：当w(TPEG)为1.8%时(质量分数，下同)，乳液平均粒径为78 nm，TPWPU涂膜吸水率为14.1%，水接触角为85.2°，抗张强度为9.7 MPa，断裂伸长率为845%，综合性能最佳；此时TPWPU涂层织物耐静水压值为8.0 kPa，透湿率为3.2 kg/(m2·24h)。
Crosslinked waterborne polyurethane (TPWPU) fabric coating agents were prepared from polyadipic acid-1,4-butanediol diol (PBA), isophorone diisocyanate (IPDI), dihydroxymethylpropionic acid (DMPA) and polyethylene glycol tartrate (TPEG), which was synthesized by direct reaction of tartaric acid with polyethylene glycol (PEG). The structure of the synthesized TPEG was characterized by 1H-NMR and FT-IR. The properties of TPWPU emulsions and films were analyzed through particle size, water absorption, water contact angle and tensile tests. The waterproof and moisture permeability of coated fabrics were explored through hydrostatic pressure resistance and moisture permeability tests. The results show that when w(TPEG) is 1.8% (mass fraction, same as below), the average particle size of the emulsion is 78 nm, the water absorption rate of TPWPU film is 14.1%, the water contact angle is 85.2°, the tensile strength is 9.7 MPa, the elongation at break is 845%, and the overall performance is the best. At this time, the hydrostatic pressure resistance value of TPWPU coated fabric is 8.0 kPa, and the moisture permeability is 3.2 kg/(m2·24h).