欢迎访问《林产化学与工业》，
林产化学与工业

林产化学与工业 ›› 2009, Vol. 29 ›› Issue (6): 1-6.

• 研究报告 •    下一篇

阳离子型萜烯基环氧树脂多元醇的合成及其分散稳定性研究

吴国民1,3, 孔振武1,2,3, 黄焕1,2,3, 陈健1,3, 储富祥1,2   

  1. 1. 中国林业科学研究院林产化学工业研究所, 生物质化学利用国家工程实验室, 国家林业局林产化学工程重点开放性实验室, 江苏省生物质能源与材料重点实验室, 江苏 南京 210042;2. 中国林业科学研究院林业新技术研究所, 北京 100091;3. 中国林业科学研究院 林产化学工业研究所 南京科技开发总公司, 江苏 南京 210042
  • 收稿日期:2009-04-07 修回日期:1900-01-01 出版日期:2009-12-30 发布日期:2009-12-30
  • 通讯作者: 孔振武,研究员,博士,博士生导师,主要从事天然资源化学利用及聚合物高分子材料研究。

Synthesis and Dispersion Stability of Cationic Polyol Based on Hydrogenated Terpinene-maleic Ester Type Epoxy Resin

WU Guo-min1,3, KONG Zhen-wu1,2,3, HUANG Huan1,2,3, CHEN Jian1,3, CHU Fu-xiang1,2   

  1. 1. Institute of Chemical Industry of Forest Products, CAF;National Engineering Lab.for Biomass Chemical Utilization;Key and Open Lab.on Forest Chemical Engineering, SFA;Key Lab.of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China;2. Institute of New Technology of Forestry, CAF, Beijing 100091, China;3. Nanjing Science & Technology Development Corporation, Institute of Chemical Industry of Forest Products, CAF, Nanjing 210042, China
  • Received:2009-04-07 Revised:1900-01-01 Online:2009-12-30 Published:2009-12-30

PDF (PC)

542

摘要： 利用二乙醇胺(DEA)、聚乙二醇200(PEG200)对氢化萜烯-马来酸酐缩水甘油酯型环氧树脂(HTME)改性,制备了阳离子型环氧树脂基多元醇水分散体。通过对合成反应影响因素分析,确定了制备环氧树脂基多元醇的最佳反应条件:DEA用量为 12% (以HTME的质量计,下同),PEG200与HTME(与DEA氨基反应后的量)物质的量比为1:1～1.2:1;催化剂ZnCl2用量为 2%,在 100℃ 下反应6～7 h。通过化学分析和红外光谱分析方法表征了该多元醇的化学结构。随着PEG200用量的增加,所合成多元醇的羟值提高,软化点、玻璃化温度(Tg)及分散体黏度降低。纳米粒度及电位分析表明,在酸性条件下,DEA用量为 12% 时所合成的环氧树脂基多元醇具有良好的水分散稳定性,水分散体的Z均粒径小于 100 nm。多元醇水分散体在高固含量时黏度较大,添加适量极性惰性稀释剂丙二醇甲醚醋酸酯可有效降低分散体黏度。

关键词: 氢化萜烯酯型环氧树脂, 水性多元醇, 合成, 稳定性

Abstract: A novel cationic polyol which could crosslink with poly-isocyanate to form two-component waterborne polyurethane was prepared from hydrogenated terpinene-maleic ester type epoxy resin (HTME) modified by hydrophilic compounds of diethanolamine(DEA) and polyethylene glycol 200(PEG200). Suitable synthesis conditions were confirmed by studying factors of synthesis reaction. Good-quality polyol could be obtained by HTME reacting with DEA at the amount of 12% of HTME by weight and PEG200 whose molar ratio to HTME (the quantities after reacting with amino group of DEA) was 1:1-1.2:1 at temperature of 100℃ for about 6-7 h in the presence of ZnCl2 as catalyst with the amount about 2% of HTME by weight. The chemical structure of the polyol was characterized by FT-IR spectra. The dosage of PEG200 affected OH-value, softening point, glass-transition temperature (Tg) of the polyol resin and the viscosity of the dispersion. With the increasing of dosage of PEG200, hydroxyl value rised,while softening point, Tg and viscosity were decreased. From the size and zeta potential analysis, it was indicated that the cationic polyol dispersion had good stability under acidic condition and its particle size was not more than 100 nm when the dosage of DEA reached 12% of HTME by weight. The viscosity of the polyol dispersion with high solid content was quite high, while addition of some inert thinner such as propylene glycol methyl ether acetate(PMA) could lower the viscosity sensitively.

Key words: hydrogenated terpinene-maleic ester type epoxy resin, waterborne polyol, synthesis, stability

中图分类号: 

版权所有 © 中国林业科学研究院林产化学工业研究所　苏ICP备08107184号-3