超声波−微波联合处理对CSNC−CSS膜的影响  

Effect of Ultrasonic-Microwave Treatment on CSNC-CSS Film

作　　者：张爱武[1] 宋亭 张丽媛[1] 于润众 ZHANG Ai-wu;SONG Ting;ZHANG Li-yuan;YU Run-zhong(School of Food Science,Heilongjiang Bayi Agricultural University,Heilongjiang Daqing 163319,China;School of Information and Electrical Engineering,Heilongjiang Bayi Agricultural University,Heilongjiang Daqing 163319,China)

机构地区：[1]黑龙江八一农垦大学食品学院,黑龙江大庆163319 [2]黑龙江八一农垦大学信息与电气工程学院,黑龙江大庆163319

出　　处：《包装工程》2022年第15期88-95,共8页Packaging Engineering

基　　金：国际科技合作重点项目计划(2018YFE0206300);中央支持地方改革发展资金优秀青年人才项目(2020YQ16);黑龙江省重点研发指导项目(GZ202100071);黑龙江省博士后科研启动项目(LBH−Q20165)。

摘　　要：目的制备功能更优的包装膜,拓展纳米纤维素−淀粉包装膜的应用,研究超声波−微波协同作用对纳米纤维素−淀粉膜的影响。方法利用玉米秸秆纳米纤维素(CSNC)和玉米秸秆淀粉(CSS)制备CSNC−CSS膜,并在制备过程中采用超声波−微波协同改性,探究不同超声波−微波协同处理体系对制备的CSNC−CSS膜各种性能的影响。结果与未进行超声波−微波协同体系处理制备的CSNC−CSS膜进行对比发现,经过超声波−微波协同作用制备的CSNC−CSS膜的各种性能更加优异。其中,膜的抗拉强度由原来的14.92 MPa升至26.46 MPa,提高了约77.35%;断裂伸长率由原来的64.75%升至90.08%,提高了约39.12%;经过超声波−微波处理后,膜的透湿系数和透氧系数均有所下降,分别下降了约25.57%和41.45%,透光量有所增加,溶解时间有所缩短。结论经超声波−微波协同作用后,CSNC−CSS膜具有更好的力学性能、阻湿性能和阻气性能,具有广阔的市场应用前景。The work aims to study the effects of ultrasonic-microwave synergistic treatment on nanocellulose-starch film,so as to prepare better functional packaging film and expand application of nanocellulose-starch packaging film.CSNC-CSS film was prepared by corn straw nanocellulocellulose(CSNC)and corn straw starch(CSS),and the effects of different ultrasonic-microwave co-treatment systems on the properties of CSNC-CSS film were investigated.Compared with CSNC-CSS film prepared by other methods,CSNC-CSS film prepared by ultrasonic-microwave synergic system had better properties.The tensile strength of the film increased from 14.92 MPa to 26.46 MPa,with a growth of 77.35%.The elongation at break increased from 64.75%to 90.08%,with a growth of 39.12%.After ultrasound-microwave treat-ment,the moisture permeability and oxygen permeability decreased by 25.57 and 41.45%respectively.The light trans-mittance and dissolution time increased.CSNC-CSS film after ultrasonic-microwave synergistic treatment has better me-chanical properties,moisture resistance and gas resistance,and has broad market application prospect.

关 键 词：超声波−微波协同作用 纳米纤维素−淀粉膜 力学性能 阻气性 阻湿性 

分 类 号：TS206.4[轻工技术与工程—食品科学]