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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     被引量:4

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

文献类型:期刊文献

中文题名: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

英文题名:Synthesis and Properties of Gallic Acid-based Non-isocyanate Polyurethanes Modified with Polysiloxane

作者:刘贵锋[1,2,3] 吴国民[1,2,3] 陈健[1,2,3] 孔振武[1,2,3]

第一作者:刘贵锋

机构:[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;[2]国家林业局 林产化学工程重点开放性实验室;[3]江苏省生物质能源与材料重点实验室

年份:2018

卷号:38

期号:1

起止页码:39-46

中文期刊名:林产化学与工业

外文期刊名:Chemistry and Industry of Forest Products

收录:CSTPCD;;Scopus;北大核心:【北大核心2017】;CSCD:【CSCD2017_2018】;

基金: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)

语种:中文

中文关键词:没食子酸;非异氰酸酯聚氨酯;聚有机硅氧烷;制备;性能

外文关键词:gallic acid ; non-isocyanate polyurethane ; polysiloxane; preparation; property

分类号:TQ35

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。
A cyclic carbonate-functionalized polysiloxane (CCPS) was successfully synthesized by hydrosilylation of poly (methylhydrosiloxane) (PMHS) with allyl glycidyl carbonate (AGC) by using H2PtC16 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, t H 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.

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