| 悬浮法酚醛树脂缩聚反应动力学研究 |
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| 引用本文： | 杨永高,夏天祥,黄志芬.悬浮法酚醛树脂缩聚反应动力学研究[J].北京化工大学学报(自然科学版),1990(3). |
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| 作者姓名： | 杨永高 夏天祥 黄志芬 |
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| 作者单位： | 北京化工学院高分子系
(杨永高，夏天祥)，北京化工学院高分子系(黄志芬) |
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| 摘 要： | 研究了制备悬浮法酚醛树脂的各种因素对酚醛缩聚反应速率的影响。实验结果表明:以六亚甲基四胺为催化剂时,酚醛缩聚反应为二级反应,反应活化能为46.61kJ/mol。反应温度是影响反应速率的最主要因素,反应速率随催化剂用量增加而加快。当酚醛树脂的分子结构中含有N基团时,用凝胶化时间来判断反应程度是不正确的。
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| 关 键 词： | 酚醛树脂 悬浮聚合 动力学 缩聚反应 |
The Kinetics of Phenol-fornaldehyde Condensation Reaction by Suspension Method |
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| Yang Yonggao Xia Tianxiang Huang Zhifen.The Kinetics of Phenol-fornaldehyde Condensation Reaction by Suspension Method[J].Journal of Beijing University of Chemical Technology,1990(3). |
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| Authors: | Yang Yonggao Xia Tianxiang Huang Zhifen |
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| Institution: | Department of Polymer Science |
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| Abstract: | The factors effecting on the reaction rate of phenol-formaldehyde condensation by suspension polymerization have been studied systematically. The experimental results show that when using hexamethylenetetramine as a catalyst, the phenol-formaldehyde condensation reaction is a second order, and the activation energy is 46.61kJ/mol. The reaction temperature is a most important factor. The reaction rate increases with increasing the quantity of catalyst, therefore the degree of polymerization for phenolic resin containing N element can not be determined by gel time. |
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| Keywords: | phenolic resins suspension polymerization kinetics condensation reaction |
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