| 有机硅改性热反应型水基聚氨酯 |
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| 引用本文： | 吴明元,张建安,吴庆云,杨建军.有机硅改性热反应型水基聚氨酯[J].聚氨酯工业,2004,19(4):21-23. |
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| 作者姓名： | 吴明元 张建安 吴庆云 杨建军 |
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| 作者单位： | 安徽大学化学化工学院,合肥,230039;安徽大学化学化工学院,合肥,230039;安徽大学化学化工学院,合肥,230039;安徽大学化学化工学院,合肥,230039 |
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| 摘 要： | 用氨丙基聚硅氧烷与PU预聚体反应生成合硅氧烷的PU预聚体，通过NaHSO3封闭NCO基，并在水中分散制得有机硅改性热反应型水基聚氨酯乳液。考察了有机硅含量对封闭率和解封速率以及乳液粒径的影响。
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| 关 键 词： | 水基聚氨酯 有机硅 改性 热反应 |
| 修稿时间： | 2004年6月17日 |
Thermo-reactive Water-based Polyurethane Modified with Polysiloxane |
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| Abstract: | Siloxane modified polyurethane(PU) prepolymer was prepared by reaction between poly(dimethylsilone) oligomers with terminal amine group and PU prepolymer, then isocyanate group was blocked with sodium bisulfite(NaHSO 3) and thermo-reactive water-based polyurethane was obtained by dispersion method in water. The influences of oligomer contents on blocking ratio and rate of unblocking were examined, and average particle diameters of the modified dispersion were determined. |
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| Keywords: | water-based polyurethane siloxane modification thermo-reactive |
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