材料工程2016，Vol.44Issue(11)：61-65,5.DOI:10.11868/j.issn.1001-4381.2016.11.010
超细硫酸钡和轻质碳酸钙协同增韧聚乳酸混杂材料的制备及性能
Fabrication and Properties of Poly (lactic acid) Hybrid Composites Synergistic Toughened by Ultra-fine Barium Sulfate and Light Calcium Carbonate
摘要
Abstract
The poly (lactic acid) (PLA) hybrid composites consisted of ultra‐fine barium sulfate (BaSO4 ) and light calcium carbonate (CaCO3 ) inorganic particles were fabricated via molten blending and compression molding .T he effect of BaSO4 mass fraction on the morphologies ,mechanical proper‐ties ,and melt flow rate (MFR) as well as thermal stability of hybrid composites were investigated , under the condition of fixed content of CaCO3 .Results show that adequate BaSO4 is dispersed homog‐enously in the matrix and the inorganic particle‐PLA interfacial adhesion is well .PLA is synergistical‐ly toughened significantly by BaSO4 .With 15% content of BaSO4 ,the impact toughness and breaking elongation of the PLA hybrid composites are increased by 60 .38% and 151 .90% ,respectively ,com‐pared to PLA/CaCO3 sample .As BaSO4 increases ,the tensile strength decreases monotonically ,while the elastic modulus of samples increases .On the w hole ,the melt flow rate of the composites is de‐creased with the presence of BaSO4 .However ,little effect of BaSO4 on the thermal behavior of PLA is observed .关键词
聚乳酸/硫酸钡/力学性能/热稳定性/增韧Key words
poly (lactic acid)/barium sulfate/mechanical property/thermal stability/toughening分类
化学化工引用本文复制引用
杨继年,杨双萍,王闯,邵凯运,江鹏飞,周辉..超细硫酸钡和轻质碳酸钙协同增韧聚乳酸混杂材料的制备及性能[J].材料工程,2016,44(11):61-65,5.基金项目
安徽省博士后研究人员科研项目（2014B006）；安徽省高校省级科研研究项目（KJ2013Z067）；安徽省大学生创新创业训练计划项目 （）
