摘要
采用溶液流延工艺制备了纳米MgO增强聚乳酸(PLA)薄膜。研究了纳米MgO质量分数分别为0.5%,2.0%,3.5%,6.0%的PLA/MgO薄膜的力学性能、阻隔性能、热性能等。结果表明:与PLA薄膜相比,纳米MgO质量分数为2.0%时,所制PLA/MgO薄膜具有最高的拉伸强度和断裂伸长率,这归功于纳米MgO在PLA基体内的分散均一性。
Magnesium oxide (MgO) nanoparticles reinforced polylactic acid (PLA) films were prepared via solution solvent casting method.The mechanical,barrier and thermal properties of PLA/MgO films were investigated when the mass fraction of MgO nanoparticles are 0.5%,2.0%,3.5%,and 6.0% respectively.The results show that the PLA/MgO films in which the mass fraction of MgO is 2% achieves the maximum improvement in tensile strength and elongation at break due to the uniformity of MgO nanoparticles dispersed in PLA matrix.
作者
吴迪
Wu Di(Zhoukou Normal University,Zhoukou 466001,China)
出处
《合成树脂及塑料》
CAS
北大核心
2020年第1期56-60,63,共6页
China Synthetic Resin and Plastics
关键词
聚乳酸
纳米氧化镁
食品包装
polylactic acid
nano-magnesium oxide
food packaging
