【摘要】 以聚碳酸酯二醇（PCDL）、异佛尔酮二异氰酸酯（IPDI）、超支化聚酯多元醇（HBP）和3-氨丙基三乙氧基硅烷（APTES）等为原料，制备了不同APTES含量的超支化水性聚氨酯（HWPU），并研究了APTES含量对HWPU表面特性、乳液性能、力学性能、耐水性能和耐热性能的影响。实验结果表明：当APTES的用量（质量分数）为3%时，HWPU的平均粒径为68.2 nm、拉伸强度为46.5 MPa、断裂伸长率为432%、浸水24 h后的拉伸强度依然大于30 MPa，且初始热分解温度高于270℃，为开发织物喷墨印花用水性油墨提供了新策略。更多还原

【Abstract】 Hyperbranched waterborne polyurethanes(HWPUs) with different APTES contents were prepared using polycarbonate diol(PCDL), isophorone diisocyanate(IPDI), hyperbranched polyester polyol(HBP) and 3-aminopropyltriethoxysilane(APTES). The effect of varying the APTES contents on the surface, emulsion and mechanical properties, as well as on the water resistance and heat resistance of HWPU were investigated. The results showed that when the amount of APTES concentration was 3%, the average particle size of HWPU was 68. 2 nm, the tensile strength was 46. 5 MPa, and the elongation at break was 432%. The tensile strength was still greater than 30 MPa after 24 h of immersion in water. The initial thermal decomposition temperature exceeded 270 ℃. This work offers a new strategy for the developing of water-based ink for fabric inkjet printing.更多还原