内乳化-外乳化结合法制备高固含量WPU分散体
发布时间：2019-01-07 07:01
【摘要】：以不同离子型和不同HLB(亲水亲油平衡)值的外乳化剂作为试验对象,采用内乳化-外乳化法合成高固含量的WPU(水性聚氨酯)分散体。研究结果表明:当外乳化剂在预聚体乳化前加入且w(阴离子型外乳化剂)≤2%(相对于反应原料质量而言)时,可获得黏度适中、储存稳定、耐介质性能和力学性能较好的高固含量WPU。
[Abstract]:The high solid content WPU (waterborne polyurethane) dispersions were synthesized by internal emulsification and external emulsification with different ionic type and different HLB (hydrophilic and lipophilic equilibrium) as experimental object. The results show that when the external emulsifier is added before the emulsification of the prepolymer and w (anionic external emulsifier) 鈮，
本文编号：2403333
[Abstract]:The high solid content WPU (waterborne polyurethane) dispersions were synthesized by internal emulsification and external emulsification with different ionic type and different HLB (hydrophilic and lipophilic equilibrium) as experimental object. The results show that when the external emulsifier is added before the emulsification of the prepolymer and w (anionic external emulsifier) 鈮，
本文编号：2403333
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