| 水性聚氨酯合成与性能表征 |
| |
| 引用本文： | 赵颜红,习成成,张鹏,罗德礼.水性聚氨酯合成与性能表征[J].环境工程,2012(Z2):538-541. |
| |
| 作者姓名： | 赵颜红 习成成 张鹏 罗德礼 |
| |
| 作者单位： | 中国工程物理研究院 |
| |
| 摘 要： | 以异佛尔酮二异氰酸酯(IPDI)、聚丙二醇(PPG-1000)为主要原料,二羟甲基丙酸(DMPA)为亲水扩链剂,一缩二乙二醇(DEG)为小分子扩链剂,三乙胺(TEA)为中和剂,合成水性聚氨酯(WPU)溶液。研究了异氰酸根与羟值(NCO/OH)摩尔比、中和度等因素对WPU溶液黏度性能的影响。初步获得水性聚氨酯压制剂的制备工艺,即:NCO/OH投料比0.80～1.0,中和度100%,初聚温度60℃,预聚75℃,预聚时间3h,扩链1.5h,按照此配比及工艺制备的水性聚氨酯溶液稳定性能较好。
|
| 关 键 词： | 水性聚氨酯 黏度 稳定性 |
SYNTHESIS AND CHARACTERIZATION OF WATERBORNE POLYURETHANE |
| |
| Zhao Yanhong Xi Chengcheng Zhang Peng Luo Deli.SYNTHESIS AND CHARACTERIZATION OF WATERBORNE POLYURETHANE[J].Environmental Engineering,2012(Z2):538-541. |
| |
| Authors: | Zhao Yanhong Xi Chengcheng Zhang Peng Luo Deli |
| |
| Institution: | Zhao Yanhong Xi Chengcheng Zhang Peng Luo Deli (China Academy of Engineering Physics,Mianyang 621900,China) |
| |
| Abstract: | A series of waterborne polyurethane(WPU) emulsions were prepared using isophorone diisocyanate(IPDI),polypropylene glycol(PPG-1000)as raw materials,dimethlol propionic acid(DMPA)as hydrophilic chain extender,DEG as micromolecular chain extender,and triethylamine(TEA) as neutralizer.The effects of NCO/OH molar ratio,neutralization degree on the viscosity of WPU emulsion were studied.The optimum reaction conditions were determined.When NCO/OH molar ratio ranged from 0.8 to 1.0,neutralization degree was about 100%,initial polymerization at 60℃,polymerization at 75℃ for 3 h,chain-extending time was 1.5 h,the stability of the aqueous WPU emulsion was good. |
| |
| Keywords: | waterborne polyurethane viscosity stability |
| 本文献已被 CNKI 等数据库收录！ |
|
