利用C-13NMR探讨影响MF树脂贮存稳定性的因素

吴书泓; 罗朝辉; 孙振鸢

doi:10.19455/j.mcgy.1998.04.002

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利用C-13NMR探讨影响MF树脂贮存稳定性的因素
Study on Storage Stability of MF Resin by C13 NMR
1. 中国林科院木材工业研究所
1998年第4期
DOI： 10.19455/j.mcgy.1998.04.002

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[1]吴书泓,罗朝辉,孙振鸢.利用C-13NMR探讨影响MF树脂贮存稳定性的因素[J].木材工业,1998(04):7-10+13.

Wu Shuhong Luo Zhaohui Sun Zhenyuan. Study on Storage Stability of MF Resin by C13 NMR[J]. China Wood Industry, 1998,(4).
[1]吴书泓,罗朝辉,孙振鸢.利用C-13NMR探讨影响MF树脂贮存稳定性的因素[J].木材工业,1998(04):7-10+13. DOI： 10.19455/j.mcgy.1998.04.002.

Wu Shuhong Luo Zhaohui Sun Zhenyuan. Study on Storage Stability of MF Resin by C13 NMR[J]. China Wood Industry, 1998,(4). DOI： 10.19455/j.mcgy.1998.04.002.

摘要

本文利用Ｃ１３ＮＭＲ分析方法，探讨不同分子结构对ＭＦ树脂贮存稳定性的影响，以及己内酰胺提高ＭＦ树脂贮存稳定性的原因。

Abstract

3 kinds of melamine formaldehyde (MF) resin synthesized in laboratary and separated naturally in both aqueous and precipitate phases during storage were analyzed by C13 NMR,aiming at understanding effect of different structural groups of MF resin and caprolactam on storage stability.Results showed that storage life of the MF resins could be changed with substitute degree of amine group of melamine.The MF resins with structure such as NH—CH2—OCH2OH and NH—CH2OCH2—NH would be more stable in aqueous phase than NH—CH2—NH.The dissolubility of the MF resins with structure such as NH—CH2—NH in aqueous phase was improved due to additional caprolactam.But it is not sure that cocondensation of caprolactam with the MF resins was occurred during synthesizing.

关键词

三聚氰胺-甲醛树脂贮存稳定性C-13NMR

Keywords

Melamine formaldehyde resinStorage stabilityC13 NMR

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