| 油脂基聚氨酯改性脂肪胺水性环氧固化剂的结构与性能 |
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| 引用本文： | 李梅,夏建陵,黄坤,丁海阳.油脂基聚氨酯改性脂肪胺水性环氧固化剂的结构与性能[J].高分子材料科学与工程,2011(4):59-62. |
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| 作者姓名： | 李梅 夏建陵 黄坤 丁海阳 |
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| 作者单位： | 中国林业科学研究院林产化学工业研究所;国家林业局林产化学工程重点开放性实验室;中国林业科学研究院林业新技术研究所 |
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| 基金项目： | 国家“十一五”科技支撑项目资助(2009BADB1B10);中国林业科学研究院林业新技术研究所院所长基金资助项目(CAFINT2007K05) |
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| 摘 要： | 以甲苯2,4-二异氰酸酯(TDI)、高级脂肪醇聚氧乙烯醚(AEO-6)、四乙烯五胺、丙烯腈为原料合成了油脂基聚氨酯改性脂肪胺水性环氧固化剂(CA-B)。将CA-B分别与水性环氧乳液AB-EP-20、AB-EP-44、AB-EP-51组成固化体系,经分析可知,水性体系CA-B/AB-EP-44性能最优。通过差示扫描量热法、涂膜力学性能测试,研究了n(环氧基)∶n(胺氢)对CA-B/AB-EP-44体系固化物性能的影响,结果表明,n(环氧基)∶n(胺氢)为1.1∶1(摩尔比)时涂膜的综合性能最佳,此时漆膜柔韧性达1 mm、铅笔硬度达2 H、附着力达1级、耐冲击性≥60 kg.cm、乙醇渗透量(%(24 h))为15.3,与参比样Ⅰ、参比样Ⅱ(市售)固化物的物理性能相当。
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| 关 键 词： | 油脂基 聚氨酯改性 水性环氧固化剂 固化性能 |
Structure and Properties of Urethane-Modified Fatty Amine Used as Waterborne Epoxy Curing Agents Based on Oil and Fat |
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| Mei Li,Jianling Xia,Kun Huang,Haiyang Ding.Structure and Properties of Urethane-Modified Fatty Amine Used as Waterborne Epoxy Curing Agents Based on Oil and Fat[J].Polymer Materials Science & Engineering,2011(4):59-62. |
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| Authors: | Mei Li Jianling Xia Kun Huang Haiyang Ding |
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| Affiliation: | 1,2(1.Institute of Chemical Industry of Forest Products,Chinese Academy of Forestry(CAF),Nanjing 210042,China;2.Key and Open Laboratory of Forest Chemical Engineering,the State Forestry Administration (SFA),Nanjing 210042,China;3.Institute of New Technology of Forestry,CAF,Beijing 100091,China) |
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| Abstract: | Waterborne epoxy curing agent of urethane-modified fatty amine based on oil and fat(CA-B)was synthesized from fatty alcohol polyoxyethylene ether(AEO-6),toluene diisocyanate(TDI),tetraethylenepentamine and acrylonitrile.Complexed CA-B consist with waterborne epoxy latex AB-EP-20,AB-EP-44 and AB-EP-51 respectively.It is understandable after analysis that the overall properties of the curable system CA-B/AB-EP-44 are best.The effects of the molar ratio of epoxy group and amine hydrogen on the properties of the cured film for CA-B/ABEP-44 system were investigated by means of differential scanning calorimetry method and the mechanical properties.The results indicate that the optimum properties are as follows flexibility 1 mm,pencil hardness 2 H,adhesion 1,impact resistance ≥60 kg·cm,alcohol infiltration capacity 15.3%(24 h),when the molar ratio of epoxy group to amine hydrogen is 1.1∶1.Under the conditions,the mechanical properties of the curing system has reached the level of the domestic commercial products of contrast sampleⅠand contrast sampleⅡ. |
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| Keywords: | based on oil and fat urethane-modified waterborne epoxy curing agent properties of the cured film |
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