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林产化学与工业 ›› 2018, Vol. 38 ›› Issue (1): 39-46.doi: 10.3969/j.issn.0253-2417.2018.01.006

• 研究报告 • 上一篇    下一篇

有机硅改性没食子酸非异氰酸酯聚氨酯的制备及性能研究

刘贵锋, 吴国民, 陈健, 孔振武   

  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:2017-10-31 出版日期:2018-02-25 发布日期:2018-02-28
  • 通讯作者: 孔振武,研究员,博士生导师,主要从事生物质基聚合物材料的基础与应用技术研究;E-mail:kongzwlhs@163.com。 E-mail:kongzwlhs@163.com
  • 作者简介:刘贵锋(1981-),男,山东莱芜人,副研究员,博士,主要从事天然资源化学利用研究
  • 基金资助:
    国家自然科学基金项目资助(31400506);江苏省自然科学基金项目资助(BK20140077);中国林科院中央级公益性科研院所基本科研业务费专项资金资助(CAFYBB2014QB042)

Synthesis and Properties of Gallic Acid-based Non-isocyanate Polyurethanes Modified with Polysiloxane

LIU Guifeng, WU Guomin, CHEN Jian, KONG Zhenwu   

  1. Institute of Chemical Industry of Forest Products, CAF;National Engineering Lab. for Biomass Chemical Utilization;Key and Open Lab. of Forest Chemical Engineering, SFA;Key Lab. of Biomass Energy and Materials, Jiangsu Province, Nanjing 210042, China
  • Received:2017-10-31 Online:2018-02-25 Published:2018-02-28

摘要: 在氯铂酸催化作用下,由聚甲基氢硅氧烷(PMHS)与烯丙基缩水甘油环碳酸酯(AGC)经硅氢加成反应合成有机硅环碳酸酯(CCPS),并通过交联反应引入到没食子酸非异氰酸酯聚氨酯(GNIPU)中,制备得到有机硅改性的GNIPU(GNIPU-CCPS)。采用FT-IR、1H NMR及13C NMR表征了CCPS化学结构,考察了CCPS改性对NIPU聚合物材料热力学性能的影响。研究结果表明:经CCPS改性的GNIPU涂膜具有优异的柔韧性(0.5 mm)、附着力(1级)和抗冲击性能(≥ 50 kg·cm),且随着CCPS含量的增加,材料的热稳定性、柔韧性及耐水性逐渐增强,玻璃化转变温度及铅笔硬度逐渐降低。

关键词: 没食子酸, 非异氰酸酯聚氨酯, 聚有机硅氧烷, 制备, 性能

Abstract: A cyclic carbonate-functionalized polysiloxane (CCPS) was successfully synthesized by hydrosilylation of poly (methylhydrosiloxane)(PMHS) with allyl glycidyl carbonate (AGC) by using H2PtCl6 as catalyst.The CCPS was subsequently incorporated into gallic acid-based non-isocyanate polyurethane (GNIPU) networks to form GNIPU-CCPS composites.The chemical structure of CCPS was characterized by FT-IR,1H NMR and 13C NMR,as well as,the effects of CCPS on mechanical and thermal properties of GNIPU were investigated.The GNIPU-CCPS coatings exhibited excellent properties such as flexibility (0.5 mm),adhesion (grade 1) and impact strength (≥ 50 kg·cm).Furthermore,with the increase of CCPS content,the thermal stability,flexibility and water resistance of the coatings were increased,while the glass transition temperature and pencil hardness of the coatings were decreased.

Key words: gallic acid, non-isocyanate polyurethane, polysiloxane, preparation, property

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