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林产化学与工业

林产化学与工业 ›› 2009, Vol. 29 ›› Issue (4): 1-5.

• 研究报告 •    下一篇

基于阳离子型萜烯基环氧树脂多元醇的双组分水性聚氨酯的交联反应与性能

吴国民, 孔振武, 黄焕, 陈健, 储富祥   

  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
  • 收稿日期:2009-02-19 修回日期:1900-01-01 出版日期:2009-08-30 发布日期:2009-08-30
  • 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。

Crosslinking Reaction and Properties of Two-component Waterborne Polyurethane from Cationic Polyols Based on Hydrogenated Terpinene-maleic Ester Type Epoxy Resin

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

  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
  • Received:2009-02-19 Revised:1900-01-01 Online:2009-08-30 Published:2009-08-30

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摘要： 利用阳离子型萜烯基环氧树脂多元醇与聚异氰酸酯(EC385)配合制备双组分水性聚氨酯。通过纳米粒径分析表明,水性阳离子型萜烯基环氧树脂多元醇对EC385具有良好的分散性能,两者混合后,当固含量为 30%～32% 时,体系具有较理想的施工黏度。FT-IR分析表明,两者交联反应速率较快,室温(25℃)下5h可完全反应。交联产物具有优异的柔韧性、附着力、抗冲击性能以及耐水、耐碱、耐污染、抗粘连性能;以一缩二乙二醇、1,4-丁二醇为扩链剂、提高—NCO与—OH物质的量之比可增强交联产物的硬度及耐醇性。

关键词: 氢化萜烯酯型环氧树脂, 水性多元醇, 双组分聚氨酯, 交联反应

Abstract: A two-component waterborne polyurethane (2-K WPU) was prepared by mixing the cationic polyol fromhydrogenated terpinene-maleic ester type epoxy resin with polyisocyanate (EC385). It was shown by nanoparticle-size analysis that EC385 could be well dispersed by the cationic polyol. Proper operating viscosity was obtained using 2-K WPU with solid content between 30% and 32%. It was indicated by FT-IR that crosslinking reaction of cationic polyol with EC385 could be completed in 5h at room temperature (25℃). The crosslinked producthad excellent properties of flexibility, adhesion, impact strength, water-resistance, alkali resistance, stain resistance and blocking resistance by standard tests. Its pencilhardness and ethanol resistance could be increased by using diethylene glycol or 1, 4-butanediol as chain-extender with increased molar ratio of isocyanato group(—NCO) tohydroxyl group(—OH).

Key words: hydrogenated terpinene-maleic ester type epoxy resin, waterborne polyol, two-component polyurethane, crosslinking reaction

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