合成材料老化与应用2024，Vol.53Issue(3)：11-13,3.
硅橡胶-聚丙烯酸酯微球增韧聚乳酸研究
Study on Toughening Polylactic Acid by Silicone Rubber-Polyacrylate Microspheres
刘美意 1张镇鹏 1马凤国1
作者信息
- 1. 青岛科技大学橡塑材料与工程教育部重点实验室/山东省橡塑材料与工程重点实验室,山东青岛 266042
- 折叠
摘要
Abstract
In order to improve the toughness of polylactic acid(PLA),PLA blend was prepared by melting blend of silicone rubber-poly(methyl methacrylate)particles and polylactic acid.The effects of cross-linking degree,core-shell ratio and content of silicone rubber-poly(methyl methacrylate)particles on the mechanical properties of PLA were studied.The results showed that the impact strength and tensile strength of polylactic acid blend were 2.88 kJ/m2 and 51.08 MPa respectively when the amount of crosslinker KH570 was 8％and the core-shell mass ratio was 7:3.The impact strength of PLA increased 5.33 times from 1.37 kJ/m2 to 8.67 kJ/m2 when the content of silicon-C particles increased from 0 to 18％.Tensile strength decreased from 74.77 MPa to 38.86 MPa;Elongation at break increased from 2.08％to 25.45％;The bending strength decreased from 106.64MPa to 72.74 MPa.关键词
硅橡胶-聚甲基丙烯酸甲酯/聚乳酸/增韧Key words
silicone rubber-polymethyl methacrylate/polylactic acid/toughening分类
化学化工引用本文复制引用
刘美意,张镇鹏,马凤国..硅橡胶-聚丙烯酸酯微球增韧聚乳酸研究[J].合成材料老化与应用,2024,53(3):11-13,3.
