| MDI型水性聚氨酯结构及性能的研究 |
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| 引用本文： | 孙家干,杨建军,张建安,吴庆云,吴明元,周月姣.MDI型水性聚氨酯结构及性能的研究[J].中国皮革,2010(19). |
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| 作者姓名： | 孙家干 杨建军 张建安 吴庆云 吴明元 周月姣 |
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| 作者单位： | 安徽大学化学化工学院与安徽省绿色高分子重点实验室; |
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| 摘 要： | 以4,4’-二苯基甲烷二异氰酸酯(MDI)、聚醚二元醇和二羟甲基丙酸(DMPA)等为主要原料,合成了稳定的水性聚氨酯(WPU)乳液。通过FT-IR分析、粒度分析、拉伸试验、差示扫描量热仪(DSC)分析、热重分析(TGA)和吸水率等测试,对所制备的水性聚氨酯进行了力学性能、耐热性能及耐水性能的研究,考察了不同类型的聚醚二醇、扩链剂和交联剂等对水性聚氨酯性能的影响。结果表明:以MDI、1,4-丁二醇(1,4-BDO)、DMPA(4.0%)等作为硬段和N220作为软段合成的WPU,乳液稳定性好,胶膜吸水率低,断裂伸长率大,手感柔软、不粘且丰满;用PTMEG作为软段制备的WPU的氢键化程度、结晶度和耐热性较好。
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| 关 键 词： | 水性聚氨酯 MDI 聚醚二元醇 结构 性能 |
Structure and Property of MDI Based Waterborne Polyurethane |
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| Sun Jiagan,Yang Jianjun,Zhang Jianan,Wu Qingyun,Wu Mingyuan,Zhou Yuejiao.Structure and Property of MDI Based Waterborne Polyurethane[J].China Leather,2010(19). |
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| Authors: | Sun Jiagan Yang Jianjun Zhang Jianan Wu Qingyun Wu Mingyuan Zhou Yuejiao |
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| Affiliation: | Sun Jiagan,Yang Jianjun,Zhang Jianan,Wu Qingyun,Wu Mingyuan,Zhou Yuejiao(School of Chemistry and Chemical Engineering of Anhui University & Key Laboratory of Environment-friendly Polymer Materials of Anhui Province,Hefei 230039,China) |
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| Abstract: | Stable waterborne polyurethane(WPU) emulsion was synthesized by 4,4-diphenyl methane diisocyanate(MDI),polyether diol,dimethylolpropionic acid(DMPA) etc.The properties of WPU were characterized by FT-IR,particle size analysis,tensile testing,differential scanning calorimetry(DSC),thermogravimetric analysis(TGA),and water absorption test,respectively.The influences of types of polyether diol,chain extenders,hydrophilic chain extenders,and cross-linkers on the mechanical property,thermodynamic property,and wa... |
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| Keywords: | waterborne polyurethane MDI polyether diol structure property |
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