| 利用FTIR对苯基异氰酸酯与不同含水率纤维素反应的研究 |
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| 引用本文： | 顾继友,高振华,李志国,李晓萍,隋淑娟. 利用FTIR对苯基异氰酸酯与不同含水率纤维素反应的研究[J]. 林业科学, 2004, 40(2): 142-147 |
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| 作者姓名： | 顾继友 高振华 李志国 李晓萍 隋淑娟 |
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| 作者单位： | 东北林业大学材料科学与工程学院,哈尔滨,150040 |
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| 基金项目： | 国家自然科学基金资助项目“异氰酸酯与木质基材料胶接机理研究 ( 3 0 170 75 3 ) |
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| 摘 要： | 通过FTIR红外光谱对苯基异氰酸酯与醇、水、不同含水率纤维素反应产物的研究 ,确定了产物的红外光谱吸收峰的归属。研究发现 :异氰酸酯与绝干纤维素羟基反应产物是氨基甲酸酯 ,随着纤维素含水率的增加 ,异氰酸酯与纤维素的反应越来越低 ,与水反应的比例越来越高 ;当纤维素含水率为 9 78%时 ,异氰酸酯绝大部分与水反应生成取代脲
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| 关 键 词： | 苯基异氰酸酯 纤维素 含水率 竞争反应 红外光谱 |
| 文章编号： | 1001-7488(2004)02-0142-06 |
| 修稿时间： | 2003-06-25 |
The FTIR Study on the Reaction of Benzyl Isocyanate and Cellulose with Different Moisture Content |
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| Gu Jiyou Gao Zhenhua Li Zhiguo Li Xiaoping Sui Shujuan. The FTIR Study on the Reaction of Benzyl Isocyanate and Cellulose with Different Moisture Content[J]. Scientia Silvae Sinicae, 2004, 40(2): 142-147 |
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| Authors: | Gu Jiyou Gao Zhenhua Li Zhiguo Li Xiaoping Sui Shujuan |
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| Abstract: | The paper studied the results of benzyl isocyanate with n propanol, water and cellulose with different moisture content ( MC ) by FTIR, in which the IR bands were identified. The reaction product of isocyanate and cellulose carbamate. With MC of cellulose increasing, the reaction of isocyanate and cellulose decreases while the reaction of isocyanate with water increases. When the MC of cellulose is 9 78%, most of isocyanate reacts with water absolutely and forms dibenzylurea. |
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| Keywords: | Benzyl isocyanate Cellulose Moisture content Competitive reaction IR spectroscopy |
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