文献类型：期刊文献

英文题名：High bio-content castor oil based waterborne polyurethane/sodium lignosulfonate composites for environmental friendly UV absorption application

作者：Zhang, Wenbo[1] Zhang, Yi[1] Liang, Haiyan[1] Liang, Dunsheng[1] Cao, Hongying[2] Liu, Chengguo[3] Qian, Yong[4] Lu, Qiming[1] Zhang, Chaoqun[1]

第一作者：Zhang, Wenbo

通信作者：Lu, QM[1];Zhang, CQ[1];Qian, Y[2]

机构：[1]South China Agr Univ, Coll Mat & Energy, Guangzhou 510642, Guangdong, Peoples R China;[2]Jinxing Siweide Micro Fiber Suede Co Ltd, 673 Heping St, Jinxing 314003, Peoples R China;[3]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Natl Engn Lab Biomass Chem Utilizat,Key Lab Bioma, Key Lab Forest Chem Engn Natl Forestry & Grasslan, 16 Suojin Wucun, Nanjing 210042, Jiangsu, Peoples R China;[4]South China Univ Technol, Sch Chem & Chem Engn, State Key Lab Pulp & Paper Engn, Guangzhou 510640, Guangdong, Peoples R China

年份：2019

卷号：142

外文期刊名：INDUSTRIAL CROPS AND PRODUCTS

收录：;EI(收录号：20194107523093);Scopus(收录号：2-s2.0-85073025576);WOS:【SCI-EXPANDED(收录号:WOS:000499762200041)】；

基金：This work was sponsored by the Fundamental Research Funds of CAF (CAFYBB2017QB006), National Natural Science Foundation (51703068), the Guangdong Province Science & Technology Program (2017A010103015 and 2018B030306016), the Program of the Science Technology Department of Guangzhou, China (201803020039), Key Projects of Basic Research and Applied Basic Research of the Higher Education Institutions of Guangdong Province (2018KZDXM014), Guangzhou Municipal Key Laboratory of Woody Biomass Functional New Materials (201905010005) and the Open Project of Jiangsu Key Laboratory for Biomass Energy and Materials (JSBEM201803).

语种：英文

外文关键词：Sodium lignosulfonate; Castor oil; Waterborne polyurethane; UV absorption; Mechanical properties

摘要：In this work, a series of castor oil-based waterborne polyurethane composites were prepared with different amounts of sodium lignosulfonate as functional filler. The effect of the sodium lignosulfonate contents on the particle size and storage stability of the polyurethane composite dispersions was studied and discussed. In addition, the thermo-mechanical, thermal stability, mechanical properties and UV absorption of the resulting polyurethane films were characterized. The composite dispersion exhibits excellent storage stability and the bio-content of the resulting composite films is high up to 70%. In addition, it was found that the tensile strength and storage modulus increased with increasing the sodium lignosulfonate contents due to enhancement effect from the rigid benzene ring structure of sodium lignosulfonate and good compatibility between polyurethane matrix and the filler. The introduction of sodium lignosulfonate into WPU matrix rendered the excellent UV absorption of the composites due to the conjugated structures of lignin macromolecular. This work provides a new simple method to prepare environmental friendly bio-based waterborne polyurethane composites, which could find widely application in the field of UV absorption coatings and sunscreen cream.