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林产化学与工业

林产化学与工业 ›› 2008, Vol. 28 ›› Issue (5): 1-6.

• 研究报告 •    下一篇

没食子酸改性氢化萜烯基环氧树脂多元醇的合成及性能研究

吴国民, 孔振武, 陈健, 黄焕   

  1. 中国林业科学研究院林产化学工业研究所;国家林业局 林产化学工程重点开放性实验室, 江苏, 南京, 210042
  • 收稿日期:2008-03-26 修回日期:1900-01-01 出版日期:2008-10-30 发布日期:2008-10-30
  • 通讯作者: 孔振武,研究员,博士,硕士生导师,主要从事天然资源化学利用及环氧树脂高分子材料研究。

Synthesis and Properties of Polyol from Hydrogenated Terpinene-maleic Ester Type Epoxy Resin Modified by Gallic Acid

WU Guo-min, KONG Zhen-wu, CHEN Jian, HUANG Huan   

  1. Institute of Chemical Industry of Forest Products, CAF;Key and Open Lab. on Forest Chemical Engineering, SFA, Nanjing 210042, China
  • Received:2008-03-26 Revised:1900-01-01 Online:2008-10-30 Published:2008-10-30

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摘要： 利用天然可再生资源没食子酸(GA)与氢化萜烯基环氧树脂(HTME)在一定条件下反应制备了环氧树脂基多元醇(HTME-GA多元醇).通过研究合成反应的影响因素,确定了HTME-GA多元醇的合成反应条件:以GA物质的量12.5倍的正丙醇为反应溶剂,以占HTME与GA总质量2%的季铵盐为催化剂,HTME与GA共沸回流反应3h.经FT-IR、NMR光谱表征了HTME-GA多元醇的化学结构,比较了该多元醇与聚己二异氰酸酯HN90T、改性聚己二异氰酸酯EC385的交联反应特性及交联产物性能.实验结果表明,HTME-GA多元醇与EC385的交联产物具有优良的机械力学性能,与HN90T的交联产物具有较好的耐液体介质性能和硬度,但后者柔韧性较差.随着NCO与OH物质的量比的增大,交联产物的硬度和耐液体介质性能提高.

关键词: 氢化萜烯酯型环氧树脂, 没食子酸, 多元醇

Abstract: A new kind of polyol (HTME-GA polyol) was synthesized from hydrogenated terpinene-maleic ester type epoxy resin (HTME) modified by gallic acid (GA), and the suitable synthesis conditions were confirmed by studying the factors of synthesis reaction. HTME-GA polyol could be obtained by reacting GA with HTME at reflux temperature for about 3 hours in the solvent of n-propyl alcohol with the amount about 12.5 times of GA by molar weight and catalyst of quaternary ammonium salt with the amount about 2% of the reactants by weight. The chemical structure of HTME-GA polyol was characterized by chemical analysis, FT-IR and 13C NMR spectral methods. HTME-GA polyol was crosslinked with two different curing agents, namely HN90T (HDI trimer) and EC385 (HDI trimer modified with polyether). It was shown that the crosslinked product of HTME-GA polyol with EC385 had better mechanical properties, and the crosslinked product of HTME-GA polyol with HN90T had better properties of resistance against liquids and higher hardness, while with poor flexibility. The increase of molar ratio of NCO/OH resulted in higher hardness and better liquid resistance of crosslinked product.

Key words: hydrogenated terpinene-maleic ester type epoxy resin, gallic acid, polyol

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