聚酯型水性聚氨酯乳液性能影响因素的研究  

Study on influence factors of properties of polyester waterborne polyurethane emulsion

作　　者：孙洁[1] 贺江平[1] 贾明静[1] 

机构地区：[1]西安工程大学纺织与材料学院,陕西西安710048

出　　处：《印染助剂》2012年第4期35-38,共4页Textile Auxiliaries

摘　　要：用预聚体法,以聚酯二元醇(PEA 1 000)、异佛尔酮二异氰酸酯(IPDI)、二羟甲基丙酸(DMPA)为基本原料,合成了聚酯型水性聚氨酯乳液.探讨了R值(NCO/OH量比)、DMPA用量、中和度等因素对水性聚氨酯乳液粒径、粘度、乳液外观、稳定性等性能的影响.结果表明:随R值的增大,乳液的粘度和粒径均增加,稳定性变差;随DMPA用量的增加,乳液的粒径减小,粘度增大,稳定性增强;随着中和度的增加,乳液的粒径及粘度先减小后增大.The polyester waterborne polyurethane emulsion was prepared with polyester diol（PEA 1 000）,isophorone diisocyanate（IPDI） and dimethylol propionic acid（DMPA） using prepolymer method.The influences of the R（the mole ratio of NCO/OH）,the amount of DMPA and the neutralization degree on the grain diameter,the viscosity,appearance and the stability of the waterborne polyurethane emulsion were discussed.The results showed that the grain diameter and the viscosity of the emulsion both increased,the stability of the emulsion decreased with the R increasing;the grain diameter of the emulsion decreased,the viscosity of the emulsion and the stability of the emulsion increased as the amount of DMPA increased;the grain diameter and the viscosity of the emulsion both first decreased and then increased as the neutralization degree increased.

关 键 词：聚酯 水性聚氨酯 乳液 性能 

分 类 号：TQ433.4[化学工程]