中国塑料2017，Vol.31Issue(6)：28-35,8.DOI:10.19491/j.issn.1001-9278.2017.06.005
聚醚硅氧烷二元醇改性蓖麻油基水性聚氨酯的合成及性能
Preparation and Properties of Castor-oil-based Polyurethane Modified by Polyether-polysiloxane Polyols
摘要
Abstract
Plant-oil-based waterborne polyurethanes were synthesized by using polyether-polysiloxane polyols (PEPSO)and castor oil as raw materials.In the synthetic process,different amount of PEPSO was introduced into polyurethane molecular chains through a chemical reaction between NCO groups and OH groups of PEPSO,which resulted in a series of polyurethane emulsions with different contents of PEPSO soft segments.Chemical structures,particle size, thermal stability,mechanical properties and surface hydrophobicity of the prepared polyurethanes were extensively characterized.The results indicated that PEPSO segments were successfully incorporated into polyurethane backbones,and the resultant polyurethanes exhibited an enhanced thermal stability in the presence of PEPSO segment.However,the glass transition temperature and particle size of polyurethanes were reduced with increasing content of PEPSO segment.With the addition of small amount of PEPSO,the tensile strength and hydrophobicity of polyurethanes was improved to some extent.关键词
聚醚硅氧烷二元醇/蓖麻油/植物油基水性聚氨酯/疏水性Key words
polyether-polysiloxane polyol/castor oil/plant oil-based waterborne polyurethane/hydrophobicity分类
化学化工引用本文复制引用
葛硕硕,张萍波,蒋平平,唐敏艳,俞晓琴,包燕敏,高学文..聚醚硅氧烷二元醇改性蓖麻油基水性聚氨酯的合成及性能[J].中国塑料,2017,31(6):28-35,8.基金项目
江苏省产学研联合创新资金项目(BY2014023-08) （BY2014023-08）
