| 低甲醛释放量刨花板用脲醛树脂结构的研究(英文) |
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| 引用本文： | 杨斌峰,吕时铎.低甲醛释放量刨花板用脲醛树脂结构的研究(英文)[J].林产化学与工业,1993(1). |
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| 作者姓名： | 杨斌峰 吕时铎 |
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| 作者单位： | 中国林业科学研究院林产化学工业研究所 南京210037
(杨斌峰)，中国林业科学研究院林产化学工业研究所 南京210037(吕时铎) |
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| 摘 要： | 本文通过~(13)C NMR研究了脲醛树脂合成新工艺中不同反应阶段时的脲醛树脂的化学结构。研究结果表明脲醛树脂的化学结构主要受甲醛/尿素的摩尔比,pH值、反应温度和反应时间的影响。对脲醛树脂中主要的官能团:游离甲醛、亚甲基、亚甲基醚、Uron等相互关系也进行了研究。指出了生产低甲醛释放量,高力学性能刨花板用脲醛树脂中主要官能团的最佳含量。
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| 关 键 词： | 脲醛树脂 刨花板 低甲醛释放量 |
STUDIES ON STRUCTURE OF UREA FORMALDEHYDE RESINS USED FOR PARTICLEBOARDS |
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| Yang Binfeng Lu Shiduo.STUDIES ON STRUCTURE OF UREA FORMALDEHYDE RESINS USED FOR PARTICLEBOARDS[J].Chemistry & Industry of Forest Products,1993(1). |
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| Authors: | Yang Binfeng Lu Shiduo |
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| Abstract: | The structure of urea formaldehyde resins in various stages of production with new technology was analysed by means of 13C NMR. The results from analysis showed that the structure of urea formaldehyde resins was affected by F/U mole ratio,pH value ,reaction time and temperature. The relationship between main groups in the UF resin, such as free formaldehyde, urea and its derivatives, methylene, methylene ether were investigated. The optimal content of each group in the urea formaldehyde resins used for particleboards with low formaldehyde emission and better mechanical properties was proposed. |
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| Keywords: | Urea formaldehyde resin Particleboard Low formaldehyde emission |
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