| 复合薄膜用水性聚氨酯胶粘剂的研究 |
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| 引用本文： | 何立凡,尹玉勇,王海侨,李效玉. 复合薄膜用水性聚氨酯胶粘剂的研究[J]. 聚氨酯工业, 2009, 24(6) |
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| 作者姓名： | 何立凡 尹玉勇 王海侨 李效玉 |
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| 作者单位： | 北京化工大学材料科学与工程学院,碳纤维及功能高分子教育部重点实验室,100029;北京化工大学材料科学与工程学院,碳纤维及功能高分子教育部重点实验室,100029;北京化工大学材料科学与工程学院,碳纤维及功能高分子教育部重点实验室,100029;北京化工大学材料科学与工程学院,碳纤维及功能高分子教育部重点实验室,100029 |
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| 摘 要： | 以聚已二酸1,4-丁二醇酯(PBA)、甲苯二异氰酸酯(TDI)、二羟甲基丙酸(DMPA)等为主要原料合成了水性聚氨酯复膜胶,讨论了亲水性扩链剂DMPA用量对水性聚氨酯复膜胶的稳定性、耐水性、粘接强度等的影响;使用差示扫描量热仪(DSC)和原子力显微镜(AFM)观察了分子结构中的软、硬段微相结构分布。结果表明,当DMPA质量分数占预聚体总质量的2.67%～5.34%时能够制得稳定乳液;水性复膜胶乳液的粘度以及胶膜的吸水率随着亲水性扩链剂DMPA用量的增加而增加,而乳液的粒径随着亲水性扩链剂DMPA用量的增加而减小;硬段含量的增加会降低软段结晶,增加水性聚氨酯复膜胶高分子链的极性和粘接强度,当硬段质量分数为22.79%时,胶膜具有较好的T型剥离强度;提高复合压力能够显著提高T型剥离强度;该复膜胶对聚对苯二甲酸乙二醇酯(PET)膜有着比聚丙烯(OPP)膜更好的粘接效果。
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| 关 键 词： | 水性聚氨酯复膜胶 扩链剂 软硬段结构 微相分离 性能 |
Preparation and Properties of Waterborne Polyurethane Adhesive for the Flexible Packaging |
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| He Lifan,Yin Yuyong,Wang Haiqiao,Li Xiaoyu. Preparation and Properties of Waterborne Polyurethane Adhesive for the Flexible Packaging[J]. Polyurethane Industry, 2009, 24(6) |
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| Authors: | He Lifan Yin Yuyong Wang Haiqiao Li Xiaoyu |
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| Affiliation: | He Lifan Yin Yuyong Wang Haiqiao Li Xiaoyu (School of Materials Science and Engineering; Beijing University of Chemical Technology; Key Laboratory of Carbon Fiber and Functional Polymers; Ministry of Education; 100029; China); |
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| Abstract: | A series of waterborne polyurethane anionomers(WBPU) were prepared using poly(1,4-butylene glycol adipate)(PBA),toluene diisocyanate(TDI),dimethylol propionic acid(DMPA) as the major materials. The effect of the DMPA content on stability,water swelling and the adhesive strength of WBPU dispersions were investigated. The differential scanning calorimetry(DSC) and atomic force microscope(AFM) were used to study the microphase separation of WBPU.The results showed that stable aqueous dispersions of WBPU were o... |
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| Keywords: | waterborne polyurethane adhesive microphase separation performance |
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