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| 苯酚-尿素-甲醛共缩聚树脂结构形成比较 | |
| 引用本文： | 雷洪,杜官本,PIZZI Antonio,李琴,赵伟刚,方群.苯酚-尿素-甲醛共缩聚树脂结构形成比较[J].林产化学与工业,2009,29(1):73-78. |
| 作者姓名： | 雷洪 杜官本 PIZZI Antonio 李琴 赵伟刚 方群 |
| 作者单位： | 1. 南京林业大学,木材工业学院,江苏,南京,210037;西南林学院,木质科学与装饰工程学院,云南,昆明,650224 2. 西南林学院,木质科学与装饰工程学院,云南,昆明,650224 3. ENSTIB, University of Nancy 1, Epinal 88000, France 4. 浙江省林业科学研究院,浙江,杭州,310023 |
| 基金项目： | 教育部新世纪优秀人才支持计划，云南省应用基础研究重点基金 |
| 摘 要： | 用13C NMR 定量分析跟踪研究了两种不同合成路线中苯酚-尿素-甲醛共缩聚树脂(PUF)结构形成过程,比较了3种PUF树脂的结构构成.研究发现树脂制备过程中的酸性环境导致脲醛树脂初聚物含量增加以及尿素与苯酚之间的共缩聚增加;合成反应初期的介质环境对羟甲基酚的形成有着决定性的影响;合成过程中酸性环境所处阶段不同,最终树脂结构出现差异. |
| 关 键 词： | 苯酚-尿素-甲醛共缩聚树脂 结构 定量分析 |
Comparison of Structure Formation of Phenol-urea-formaldehyde Resin |
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| LEI Hong,DU Guan-ben,PIZZI Antonio,LI Qin,ZHAO Wei-gang,FANG Qun.Comparison of Structure Formation of Phenol-urea-formaldehyde Resin[J].Chemistry & Industry of Forest Products,2009,29(1):73-78. | |
| Authors: | LEI Hong DU Guan-ben PIZZI Antonio LI Qin ZHAO Wei-gang FANG Qun |
| Institution: | 1.Department of Wood Industry;Nanjing Forestry University;Nanjing 210037;China;2.Department of Wood Science and Interior Decoration;Southwest Forestry College;Kunming 650224;3.ENSTIB;University of Nancy 1;Epinal 88000;France;4.Forestry Research Institute of Zhejiang Province;Hangzhou 310023;China |
| Abstract: | The progresses of structure formation of phenol-urea-formaldehyde(PUF) resin prepared in two different routes were followed by 13C NMR which allowed quantitative analysis of the main function groups in the PUF prepolymers.The structures of three different PUF resins were compared too.The results showed that the medium condition at the initial stage of the preparation had decisive effects on the formation of phenol methylol.Acidic condition caused the increase of urea-formaldehyde prepolymer and co-condensed... |
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