| 多亚甲基多苯基多异氰酸酯交联聚乙烯醇乳胶 |
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| 引用本文： | 夏赤丹,杨国超.多亚甲基多苯基多异氰酸酯交联聚乙烯醇乳胶[J].精细石油化工,2003(5):42-45. |
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| 作者姓名： | 夏赤丹 杨国超 |
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| 作者单位： | 1. 江汉大学化学与环境工程学院,武汉,430056
2. 长沙矿冶研究院,长沙,410012 |
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| 基金项目： | 武汉市重点攻关计划项目 (项目编号 :9810 0 5 164 ),获得湖北省 2 0 0 2年科技进步三等奖 |
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| 摘 要： | 为了制备环保型水性乳胶 ,采用正交实验法 ,以压缩剪切强度为考核指标 ,研究了多亚甲基多苯基多异氰酸酯 (PAPI)交联聚乙烯醇 (PVA)胶水的反应。在表面活性剂OP 10作用下 ,在水基中用少量交联剂PAPI与PVA进行反应 ,制得了稳定的单组分白色乳胶。适宜反应条件为 :PVA的质量浓度 0 .13g/mL、PAPI的体积分数 0 .6 %、交联反应时间 75min、交联反应温度 2 0～ 30℃ ,粘合木材后的压缩剪切强度达 6 .6 2MPa。
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| 关 键 词： | 多亚甲基多苯基多异氰酸酯 聚乙烯醇 粘合剂 交联反应 |
| 修稿时间： | 2003年2月8日 |
STUDY ON CROSSLINK COPOLYVINYL ALCOHOL WITH POLYARYL-POLYMETHYLENE-ISOCYANATE IN WATER EMULSION |
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| Xia Chidan,and Yang Guochao.STUDY ON CROSSLINK COPOLYVINYL ALCOHOL WITH POLYARYL-POLYMETHYLENE-ISOCYANATE IN WATER EMULSION[J].Speciality Petrochemicals,2003(5):42-45. |
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| Authors: | Xia Chidan and Yang Guochao |
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| Affiliation: | Xia Chidan 1 and Yang Guochao 2 |
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| Abstract: | In order to prepare an adhesive emulsion of environment protective type, the crosslink ing reaction of polyvinyl alcohol (PVA) with the p olyaryl polymethylene isocyanate(PAPI) was researched by the orthogonal experimental design method and with the compression shearing strength as examination index. In the presence of surfactant OP 10, a little amount of PAPI was added into the PVA water emulsion, a white steady single component adhesive was obtained. The optimal reaction conditions were found as follows: mass concentration of PAV 0.13 g/mL, volume fraction of PAPI 0.6%, reaction time 75 min, reaction temperature 2030 ℃. The compression shearing strength of the binded wood plate is up to 6.62 MPa. |
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| Keywords: | polyaryl polymethylene isocyanate PVA adhesive crosslink reaction |
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