| 乳化工艺对水性聚氨酯乳液及性能的影响 |
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| 引用本文： | 刘天亮,沈慧芳,陈焕钦. 乳化工艺对水性聚氨酯乳液及性能的影响[J]. 聚氨酯工业, 2009, 24(5) |
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| 作者姓名： | 刘天亮 沈慧芳 陈焕钦 |
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| 作者单位： | 华南理工大学化学与化工学院,广州,510640 |
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| 摘 要： | 以异佛尔酮二异氰酸酯(IPDI)、聚醚二元醇(N220)为主要原料合成了脂肪族水性聚氨酯乳液,研究了乳化温度、中和方式、分散方法、叶轮转速及降粘方法对水性聚氨酯乳液及涂膜性能的影响。结果表明,温度在25~30℃左右,采取直接分散和后中和工艺能得到综合性能优异的水性聚氨酯乳液;如以水和丙酮降粘,水温20℃,水与丙酮的质量比应低于3∶1。
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| 关 键 词： | 水性聚氨酯 脂肪族 乳化工艺 相转变 降粘剂 |
Effects of Shear Emulsification Process on Waterborne Polyurethane Emulsion and Film Properties |
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| Liu Tianliang,Shen Huifang,Chen Huanqin. Effects of Shear Emulsification Process on Waterborne Polyurethane Emulsion and Film Properties[J]. Polyurethane Industry, 2009, 24(5) |
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| Authors: | Liu Tianliang Shen Huifang Chen Huanqin |
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| Affiliation: | Liu Tianliang Shen Huifang Chen Huanqin(School of Chemistry and Chemical Engineering; South China University of Technology; Guangzhou 510640); |
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| Abstract: | A kind of aliphatic waterborne polyurethane emulsion had been synthesized using isophorone disocyanate(IPDI),poly(propylene oxide)diol(N220).The influences of temperature of emulsification,neutralizing mode,dispersing process,impeller speed,methods of reducing viscosity on waterborne polyurethane and film properties were also studied.The results showed that waterborne polyurethane with good properties was synthesized by using behind neutralizing process,direct dispersing process at about 25~30℃.If acetone a... |
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| Keywords: | waterborne polyurethane aliphatic emulsification process phase inversion viscosity reducer |
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