中国塑料2017，Vol.31Issue(8)：35-40,6.DOI:10.19491/j.issn.1001-9278.2017.08.006
FGO-WPUPA光固化阻隔涂料的制备及其对PLA薄膜阻氧性能的影响
Preparation of FGO-WPUPA Barrier Coating and Its Effect on Oxygen Barrier Performance of PLA Film
摘要
Abstract
Graphene oxide/waterborne polyurethane acrylic (GO-WPUPA) and silane coupling treated graphene oxide/waterborne polyurethane acrylic (FGO-WPUPA)barrier coatings were prepared and then coated on the surface of poly(lactic acid) (PLA) films.An investigation on the oxygen barrier performance was conducted toward these coated PLA films.The results indicated that FGO-WPUPA coating was more effective for the improvement of oxygen barrier performance than GO-WPUPA.The addition of a small amount of FGO into WPUPA can significantly reduce the oxygen transmission rate of PLA film.When 0.5 wt ％ of FGO was added,the oxygen transmission rate was reduced to 234 cm3/(m2 · 24 h) for the film coated by 0.5 ％ of FGO-WPUPA coating.This resulted in a decrease by 42 ％ in comparation with pristine PLA film.An optimal content of FGO in the coating was determined as 1.0 wt ％,and meanwhile,the optimal thickness of FGO-WPUPA barrier coating could be determined as 45μm.With such optimal conditions,the oxygen transmission rate of the films was reduced by 51.6 ％ compared with pristine PLA film.关键词
聚乳酸/氧化石墨烯/表面改性/涂料/阻氧性能Key words
poly(lactic acid)/graphene oxide/surface modification/coating/gas barrier分类
化学化工引用本文复制引用
张玲,陈寿,孙耀明,江洪,王鑫,涂建国,李明雨..FGO-WPUPA光固化阻隔涂料的制备及其对PLA薄膜阻氧性能的影响[J].中国塑料,2017,31(8):35-40,6.基金项目
深圳市科技计划资助(ZLZBFWXCL20160801020001,JS-GG20160229164018623) （ZLZBFWXCL20160801020001,JS-GG20160229164018623）
