文章摘要
夏雪婷.不需预保护羟基的侧链亲水非离子水性聚氨酯的制备与性能[J].精细化工,2021,38(7):0
不需预保护羟基的侧链亲水非离子水性聚氨酯的制备与性能
Preparation and properties of side chain hydrophilic nonionic waterborne polyurethane without preprotective hydroxyl groups
投稿时间:2021-01-10  修订日期:2021-03-09
DOI:
中文关键词: 酒石酸  酯化  亲水单体  非离子  水性聚氨酯
英文关键词: tartaric acid  esterification  hydrophilic monomer  nonionic  waterborne polyurethane
基金项目:安徽省2018年度科技重大专项(项目编号:18030901077)、安徽省高校自然科学研究重点项目 (No.KJ2016A792)资助
作者单位E-mail
夏雪婷 安徽大学磬苑校区化学化工学院理工G楼315 2433465791@qq.com 
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中文摘要:
      以酒石酸与聚乙二醇单甲醚(MPEG)为原料,在不需预保护酒石酸中羟基的情况下,经过酯化反应合成了酒石酸聚乙二醇单甲醚酯(TMPEG),以其为亲水单体通过预聚体法制备了一系列非离子型水性聚氨酯(TWPU)。通过1HNMR、FTIR、TGA、拉伸测试对TMPEG和TWPU进行了结构表征与性能测试。考察了亲水单体TMPEG质量分数对TWPU贮存稳定性、力学性能、吸水率的影响。结果表明:当TMPEG质量分数为24%(以TMPEG、聚己二酸-1,4-丁二醇酯二醇、异佛尔酮二异氰酸酯、三羟甲基丙烷、乙二胺反应合成的预聚体的总质量为基准,下同)时,TWPU乳液平均粒径为85nm,TWPU胶膜接触角为84°,拉伸强度为7.9MPa,断裂伸长率为768%。
英文摘要:
      Polyethylene glycol monomethyl ether tartrate (TMPEG) was synthesized from tartaric acid and polyethylene glycol monomethyl ether (MPEG) without preprotection of hydroxyl group in tartaric acid by esterification reaction. A series of nonionic waterborne polyurethanes (TWPU) were prepared by the prepolymer process using the hydrophilic monomer as hydrophilic component. The successful synthesis and introduction of TMPEG were characterized by 1H-NMR, FTIR, TGA, tensile tests. The effects of quality score of hydrophilic monomer TMPEG on the storage stability, mechanical properties, water absorption of TWPU was studied. The results showed that when the mass fraction of TMPEG was 24% (based on the total mass of the prepolymer synthesized by the reaction of TMPEG, polyadipate -1,4-butanediol ester diol, isophorone diisocyanate, trimethylpropane, thylene diamine, the same below), the average particle size of TWPU emulsion was 85 nm, the contact angle, tensile strength, elongation at break of the TWPU film were 84°,7.9MPa, 768%, respectively. The comprehensive performance of TWPU film reached the best.
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