陈双莲,陈广学,陈奇峰,贾春江,王 青.混合多元醇对无溶剂聚氨酯覆膜胶性能的影响[J].包装工程,2012,33(7):40-43,77.
CHEN Shuang-lian,CHEN Guang-xue,CHEN Qi-feng,JIA Chun-jiang,WANG Qing.Effects of Mixed-polyols on Properties of Solvent-free Polyurethane Laminating Adhesives[J].Packaging Engineering,2012,33(7):40-43,77. |
| 混合多元醇对无溶剂聚氨酯覆膜胶性能的影响 |
| Effects of Mixed-polyols on Properties of Solvent-free Polyurethane Laminating Adhesives |
| 投稿时间：2012-02-03 修订日期：2012-04-10 |
| DOI： |
| 中文关键词: 无溶剂 聚氨酯 植物油多元醇 小分子多元醇 覆膜胶 |
| 英文关键词: solvent-free polyurethane vegetable oil polyols small molecular alcohols laminating adhesive |
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| 中文摘要: |
| 以聚己二酸-1，4-丁二醇酯（PBA）、植物油多元醇、异弗尔酮二异氰酸酯（IPDI）和小分子多元醇为主要原料，制备了一种双组分无溶剂型聚氨酯胶粘剂。研究了双组分的配比R′和混合多元醇组分对聚氨酯胶粘剂固化速率、固化后胶膜的热稳定性和吸水率的影响，并测试了覆膜样品的T剥离强度。结果表明：当双组分配比R′=1.3时，胶粘剂综合性能最佳；添加小分子多元醇并不能提高胶粘剂的固化速率和耐热性，但能显著改善胶粘剂的粘结性能，并且选择性添加适量的小分子二醇，还能增强其耐水性。 |
| 英文摘要: |
| Two-component solvent-free polyurethane adhesive was prepared with PBA, vegetable oil polyols, IPDI and several different small molecular alcohols as main raw materials. The influences of two-components ratio R′ and mixed polyols components on curing speed, heat resistance, water absorption, and T-peel strength were studied. The results showed that the adhesives showed the best comprehensive properties when the two-components ratio R′ is 1.3; addition of small molecular alcohols can not increase the curing speed and heat resistance, however, it can significantly improve the peel strength of the adhesive; adding appropriate amount of small molecules alcohols selectively can enhance its water resistance. |
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