文献类型：期刊文献

英文题名：High solid content production of environmentally benign ultra-thin lignin-based polyurethane films: Plasticization and degradation

作者：Zhang, Yan[1];Wang, Jingya[1];Fang, Xiangchen[2];Liao, Jianjun[1];Zhou, Xin[1];Zhou, Shumin[1];Bai, Fudong[2];Peng, Shaozhong[2]

机构：[1]East China Univ Sci & Technol, Minist Educ, Sch Mat Sci & Engn, Key Lab Ultrafine Mat,Shanghai Key Lab Adv Polyme, Shanghai 200237, Peoples R China;[2]SINOPEC, Dalian Res Inst Petr & Petrochem, Dalian 116045, Liaoning, Peoples R China

年份：2019

卷号：178

外文期刊名：POLYMER

收录：;EI(收录号：20192607098416);WOS:【SCI-EXPANDED(收录号:WOS:000483922700030)】；

基金：This work was supported by China Petroleum and Chemical Corporationand 111 Project [grant numbers B14018].

语种：英文

外文关键词：Lignin; Polyurethane; Additives

摘要：Here, an environmentally benign method of minimizing waste creation and production time was proposed to fabricate the ultra-thin polyurethane films (LPU(f)s). The lignin was used as hard segments and poly(epsilon-caprolactone) glycol (PCL) served as soft segments through the coupling of hexamethylene diisocyanate (HDI). The modified fabrication method could economize the usage of solvent more than six-fold and reduce the production time within 6 h. Several types of additives such as epoxidized soybean oil (ESO), dioctyl sebacate (DOS), acetyl tributyl citrate (ATBC), cardanol and antisticking agent were incorporated to improve the performance of the films and the ATBC has advantages as plasticizer for the LPUf. The biofilm was flexible and foldable without breaking at the thickness of 20 mu m, the optimized elongation at break and tensile strength could reach 246.36% and 16.68 MPa, respectively. Moreover, the bio-polyurethane revealed outstanding UV-shielding capacity and excellent biodegradability in the soil due to the green lignin and PCL. Thus this strategy enabled the high efficient production of sustainable polyurethane from renewable and nontoxic lignin using less organic solvents.