文献类型：期刊文献

中文题名：天然生漆改性萜烯基水性聚氨酯及其性能研究

英文题名：Terpene-based waterborne polyurethane modified by raw lacquer and its property

作者：孙祥玲[1] 吴国民[1,2] 孔振武[1,2]

第一作者：孙祥玲

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,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,南京210042;[2]中国林业科学研究院林业新技术研究所,北京100091

年份：2015

卷号：43

期号：5

起止页码：96-99

中文期刊名：化工新型材料

外文期刊名：New Chemical Materials

收录：北大核心:【北大核心2014】；CSCD:【CSCD2015_2016】；

基金：国家国际科技合作专项项目(2011DFA32440)

语种：中文

中文关键词：生漆;水性聚氨酯;共混;相容性;性能

外文关键词：raw lacquer, waterborne polyurethane, blend, compatibility, property

分类号：TQ323.8

摘要：以天然生漆与萜烯基水性聚氨酯共混制备共混乳液。研究了生漆含量对共混乳液稳定性、粒径分布的影响;通过红外光谱(FT-IR)、差示扫描量热法(DSC)和扫描电镜(SEM)分析方法表征了共混乳液漆膜的化学结构;测定了共混膜的吸水率、力学性能及耐溶剂性能。结果表明:当生漆含量小于20%时,共混乳液的粒径呈单峰分布,离心稳定性好,天然生漆与萜烯基水性聚氨酯两相间具有较好的相容性,其共混乳液漆膜的耐水性及机械性能均得到显著提高。生漆含量为20%时,共混乳液漆膜的力学性能最优,拉伸强度和断裂伸长率分别为11.04 MPa和68.27%。
The Blended emulsion was successfully prepared from raw lacquer and terpene-based waterborne polyure- thane. The effect of raw lacquer content on emulsion stability, particle size distribution was investigated. The chemical struc- ture of films of blended emulsion was characterized by FT-IR,DSC and SEM. Meanwhile, the water absorption rate, me- chanical properties and solvent resistance of films were also determined. The results indicated that the stable monodisperse emulsion could be obtained when the content of raw lacquer in blended emulsion was less than 20%. The water resistance and mechanical properties of films were obviously improved due to the compatibility between polyurethane and lacquer. Me chanical properties of blend films reached the maximum when the content of raw lacquer was 20 %. The best tensile strength and elongation rate at break of films were 11.04 MPa and 68.27% ,respectively.