生物质化学工程2018，Vol.52Issue(2)：18-22,5.DOI:10.3969/j.issn.1673-5854.2018.02.004
豌豆淀粉/聚乳酸双层膜的制备与性能表征
Preparation and Characterization of Pea Starch/Polylactic Acid Double Layer Film
摘要
Abstract
The pea starch/polylactic acid(PS/PLA)double layer film was prepared by solution casting method with pea starch (PS)and polylactic acid(PLA)as raw materials.The mechanical properties,hydrophobicity and water vapor barrier properties of the films were studied by testing the water absorption,solubility,water vapor transmission performance,tensile properties and surface morphology of double layer films.The results showed that with the increase of the proportion of polylactic acid layer,the water absorption,solubility and water vapor permeability of double layer film decreased,the tensile strength and tensile modulus increased,the elongation decreased gradually, which indicated that the water vapor barrier effect was obvious, the toughness increased and the strength reduced.When the mass ratio of PLA and PS was 50:50, the tensile strength, tensile modulus, elongation at break of PS/PLA double layer were(13.47 ±0.75)MPa,(0.848 ±0.002)GPa, and(16.11 ±0.16)%, respectively;and the water vapor transmission coefficient was 0.27×10 -10g·cm/(cm2·s·Pa).关键词
流延法/双层薄膜/聚乳酸/豌豆淀粉Key words
casting method/double layer film/polylactic acid/pea starch分类
化学化工引用本文复制引用
周晓明,盛杰,刘旭,杨仁党..豌豆淀粉/聚乳酸双层膜的制备与性能表征[J].生物质化学工程,2018,52(2):18-22,5.基金项目
制浆造纸工程学科引智基地(2015B020241001) （2015B020241001）
浙江省农产品化学与生物加工技术重点实验室浙江省农业生物资源生化制造协同创新中心开放基金(2016KF0201) （2016KF0201）
中央高校基本科研业务费专项资金资助(x2qs-D2171020) （x2qs-D2171020）
