| 复合薄膜用交联型水性聚氨酯胶粘剂的研制 |
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| 引用本文： | 项尚林,李莹,韩徐.复合薄膜用交联型水性聚氨酯胶粘剂的研制[J].中国胶粘剂,2006,15(1):30-32. |
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| 作者姓名： | 项尚林 李莹 韩徐 |
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| 作者单位： | 南京工业大学材料科学与工程学院,江苏省,南京市,210009 |
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| 摘 要： | 通过改变羧基(-COOH)含量、异氰酸酯基(-NCO)与羟基(-OH)的摩尔比(R值)、交联剂用量,考察了它们对聚氨酯乳液性能及复合薄膜T型剥离强度的影响。结果表明:粘度随-COOH含量的增大而增大; 随R值的增大先增大后减小,当R值=1．1时体系粘度最大。R值或-COOH含量发生变化,T型剥离强度也跟着发生改变。并且,交联剂能起到提高T型剥离强度的作用,且当交联剂含量为9％最佳。
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| 关 键 词： | 水性聚氨酯 T型剥离强度 交联剂 |
| 文章编号： | 1004-2849(2006)01-0030-03 |
| 收稿时间： | 2005-07-25 |
| 修稿时间： | 2005年7月25日 |
Study on modified crosslinking aqueous polyurethane adhesives for film |
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| XIANG Shang-lin,LI Ying,HAN Xu.Study on modified crosslinking aqueous polyurethane adhesives for film[J].China Adhesives,2006,15(1):30-32. |
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| Authors: | XIANG Shang-lin LI Ying HAN Xu |
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| Affiliation: | College of Materials Science and Engineering, Nanjing University of Technology, Nanjing 210009, China |
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| Abstract: | The effects of the content of carboxyl(COOH),the molar ratio of -NCO and -OH(R value) and the content of crosslinking agent on the properties of aqueous polyurethane (PU)and T peel strength were discussed in this article. It was found that the viscosity of aqueous PU increased with -COOH increasing; with the R value increasing,the viscosity of aqueous PU first increased then minished. When R value was 1.1,the viscosity was biggest,T peel strength was also changed by changing the content of -COOH or R value. Moreover,the cross linker and T peel strength was discussed and it was found that T peel strength increased,and the appropriate content of cross linking agent was 9%. |
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| Keywords: | aqueous polyurethane T peel strength Crosslinking agent |
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