雅努斯纳米片对PLA/PPDO共混物的增容作用  

Compatibilization of Janus Nanosheets on PLA/PPDO Blends

作　　者：陈哲 许志岩 CHEN Zhe;XU Zhiyan(Minjiang Teachers College,Fuzhou 350108,China;Puyang Zhanchen New Material Co.,Ltd.,Puyang 457000,China)

机构地区：[1]闽江师范高等专科学校,福建福州350108 [2]濮阳展辰新材料有限公司,河南濮阳457000

出　　处：《福建师范大学学报（自然科学版）》2022年第2期36-41,共6页Journal of Fujian Normal University：Natural Science Edition

基　　金：国家自然科学基金资助项目(51773038);福建省自然科学基金资助项目(2020J01150);福建省中青年教师教育科研项目(JAT210828)。

摘　　要：研究二氧化硅雅努斯纳米片(JNSs)对聚乳酸(PLA)/聚对二氧环己酮(PPDO)共混物的界面增容作用.结果表明,JNSs对PLA/PPDO共混物具有明显的增容作用,当添加质量分数0.50%~1.00%(相对于PLA质量比)的JNSs增容效果较好.质量分数0.50%的JNSs使PLA/PPDO复合材料的界面作用增强,两相熔点差Δθ_(m)减小0.6℃,高剪切速率流体粘度稍微增加.PLA/PPDO/JNSs(90/10/0.50)复合材料的强度和韧性协同增加,拉伸强度和断裂伸长率分别为13.56 MPa和314%,与不添加JNSs相比,分别增加了26%和383%.In this research, the interfacial compatibilization of silica Janus nanosheets(JNSs) on polylactic acid/Poly(p-dioxanone)(PLA/PPDO) blends was studied. JNSs showed obvious compatibilization on PLA/PPDO blends and better effect when 0.50%~1.00%(mass ratio to PLA) of JNSs was added JNSs with a mass fraction of 0.50% enhanced the interfacial interaction of the PLA and PPDO composites and decreased their melting point difference Δθ_(m)by 0.6 ℃, and the viscosity of high shear rate fluid increased slightly. The strength and the toughness of PLA/PPDO/JNSs(90/10/0.50) composites increased synergistically. The tensile strength and elongation at break were 13.56 MPa and 314% respectively, 26% and 383% higher than PLA/PPDO blends without JNSs.

关 键 词：雅努斯片 二氧化硅 聚乳酸 聚对二氧环己酮 

分 类 号：O631.1[理学—高分子化学]