| 双组分聚氨酯胶粘剂的研制 |
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| 引用本文： | 刘超,徐勤福,孙有利. 双组分聚氨酯胶粘剂的研制[J]. 粘接, 2010, 0(6): 45-47 |
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| 作者姓名： | 刘超 徐勤福 孙有利 |
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| 作者单位： | 1. 中铁一局集团第一工程公司,陕西,渭南,714000
2. 济南北方泰和新材料有限公司,山东,济南,250033 |
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| 摘 要： | 以改性聚醚多元醇、MDI预聚体和改性轻质碳酸钙为原料，制备了双组分聚氨酯胶粘剂.实验结果表明，改性CaCO3对PU胶具有增强作用，在CaCO3添加量为10％左右时，其增强效果最好，拉伸强度达11MPa；当CaCO3深加量为20％时断裂伸长率达到最大值165％；PU／CaCO3复合体系中CaCO3颗粒分散均匀.
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| 关 键 词： | 聚氨酯 轻质碳酸钙 增强改性 |
Preparation of a two-component polyurethane adhesive |
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| LIU Chao,XU Qin-fu,SUN You-li. Preparation of a two-component polyurethane adhesive[J]. Adhesion in China, 2010, 0(6): 45-47 |
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| Authors: | LIU Chao XU Qin-fu SUN You-li |
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| Affiliation: | 1.The First Engeering Co., Ltd. of China Railway First Group, Weinan, Shanxi 714000,China; 2.Beifang Taihe New Material Co.,Ltd., Jinan,Shandong 250033,China ) |
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| Abstract: | A two component polyurethane adhesive was prepared using modified polyether polyols, light calcium carbonate and MDI prepolymer as the raw materials. The mechanical properties of PU/CaCO3 system were tested at different content of calcium carbonate. The pattern of the fractured surfaces was characterized by SEM. The results showed that the modified calcium carbonate does have the function of reinforcement for polyurethane. The tensile strength reached the maximun value of 11MPa when the calcium carbonate content was 10%, and the elongation at break achieved the maximum value of 165% when the calcium carbonate content was 20%. The calcium carbonate particles were well-distributed in the polyurethane resin matrix. |
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| Keywords: | polyurethane light calcium carbonate reinforcing and modification |
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