| 预聚体法合成新型不黄变聚氨酯胶黏剂的研究 |
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| 引用本文： | 徐文超,朱长春,宋文生,唐亚夫. 预聚体法合成新型不黄变聚氨酯胶黏剂的研究[J]. 化学推进剂与高分子材料, 2008, 6(3): 26-28 |
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| 作者姓名： | 徐文超 朱长春 宋文生 唐亚夫 |
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| 作者单位： | 河南科技大学化工与制药学院,河南洛阳,471003;洛阳吉明化工有限公司,河南洛阳,471012 |
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| 基金项目： | 河南省高校青年骨干教师资助项目 |
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| 摘 要： | 介绍预聚体法合成不黄变聚氨酯胶黏剂的基本工艺。实验确定IPDI/PBA3000体系的预聚最佳反应温度在90～95℃,预聚时间为3.0h,聚酯含水质量分数控制在0.05%以内,制备出的不黄变聚氨酯预聚体性能稳定。以1,6-己二醇为扩链剂,选择异氰酸酯指数为1.05;并在120～140℃下后熟化4～10h,常温下放置1周,制得的新型不黄变聚氨酯胶黏剂耐热性好、粘接强度高、综合性能优良。
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| 关 键 词： | 聚氨酯胶黏剂 不黄变聚氨酯 胶黏剂 预聚体 |
| 文章编号： | 1672-2191(2008)03-0026-03 |
| 修稿时间： | 2008-01-07 |
Research on Synthesis of Novel Non-Yellowing Polyurethane Adhesives by Prepolymer Method |
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| XU Wen-chao,ZHU Chang-chun,SONG Wen-sheng,TANG Ya-fu. Research on Synthesis of Novel Non-Yellowing Polyurethane Adhesives by Prepolymer Method[J]. Chemical Propellants & Polymeric Materials, 2008, 6(3): 26-28 |
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| Authors: | XU Wen-chao ZHU Chang-chun SONG Wen-sheng TANG Ya-fu |
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| Abstract: | A basic synthesis process of non-yellowing polyurethane adhesive by prepolymer method is introduced. The results show that optimal reaction temperature of polyester polyol and isophorone diisocyanate (PBA/IPDA) is 90～95℃, reaction time is 3.0h, moisture content of polyester polyol should be lower than 0.05%(mass fraction). Using 1,6-hexandiol as chain extender, under the conditions of R value 1.05, post-curing temperature 120～140℃, post-curing time 4～10h, room temperature for 1 week, novel non- yellowing polyurethane adhesive with good thermal stability, high peeling strength and good comprehensive performance was synthesized. |
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| Keywords: | polyurethane adhesive non-yellowing polyurethane adhesive prepolymer |
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