纤维素科学与技术2023，Vol.31Issue(4)：13-19,7.DOI:10.16561/j.cnki.xws.2023.04.02
功能化纳米纤维素复合聚乳酸/聚丁二酸丁二醇酯薄膜的制备及性能
Preparation and Properties of Functionalized Nanocellulose PLA/PBS Composite Films
摘要
Abstract
In this study,polylactic acid(PLA)and polybutylene succinate(PBS)were selected as polymer substrates,and PLA/PBS films were prepared by solution casting method.Using silver nitrate as raw material and sodium citrate as green reducing agent,silver nanoparticles(AgNPs)were prepared by liquid phase reduction method.TEM,UV-Vis,and XRD were used to prove that AgNPs were successfully complexed in cellulose nanofibers(CNF).surface.The CNF@AgNPs film was obtained by suction filtration,which was used as the"sandwich layer",and the PLA/PBS film was the"outer layer".A PLA/PBS/CNF@AgNPs composite film with a"sandwich"structure was prepared using hot pressing molding technology.The results show that the composite film has excellent mechanical properties,crystallization properties and barrier properties.Among them,the tensile strength of PLA/PBS/CNF@AgNPs(80/20/10)film is 84.26%higher than that of PLA/PBS(80/20)film,reaching 39.69 MPa.The crystallinity increases from 1.65%to 8.84%.Water vapor and oxygen permeability coefficients are 2.8×10-10 g/(m‧s‧Pa)and 3.4 cm3/(m2‧d‧bar),respectively,which are 55.56%and 60.92%lower than PLA/PBS films.关键词
聚乳酸/聚丁二酸丁二醇酯/纳米纤维素/银纳米粒子/复合薄膜Key words
Polylactic acid/polybutylene succinate/nanocellulose/silver nanoparticles/composite film分类
化学化工引用本文复制引用
卞福萍,黄睿,李小全,蔡欣欣,林树东..功能化纳米纤维素复合聚乳酸/聚丁二酸丁二醇酯薄膜的制备及性能[J].纤维素科学与技术,2023,31(4):13-19,7.基金项目
国家自然科学基金(21404122) （21404122）
广东省自然科学基金(2021A1515012334). （2021A1515012334）
