不同改性法对玉米醇溶蛋白纳米纤维性能的影响  

Effect of Modification Method on Properties of Zein Nanofibers

作　　者：陈晓东[1] 岳亚丹 李大伟[1] 杨洁[1] 黄锋林[1] 魏取福[1] 

机构地区：[1]生态纺织教育部重点实验室江南大学,江苏无锡214122

出　　处：《材料科学与工程学报》2015年第2期241-245,250,共6页Journal of Materials Science and Engineering

基　　金：江苏省产学研联合创新基金资助项目(BY2012068);国家自然科学基金资助项目(51203064);国家高技术研究发展计划(863)资助项目(2012AA030313)

摘　　要：以玉米醇溶蛋白(Zein)为原料,通过化学交联,混纺改性和酶法交联三种改性方法,制备了改性Zein纳米纤维。使用凝胶渗透色谱仪(GPC),红外光谱(FTIR),扫描电镜(SEM),表面张力仪(ST)以及电子万能试验机(EUTM)等手段对改性后不同纤维的性能进行表征。结果表明,改性后纤维的形貌基本不变,平均直径有所降低。改性后纤维的水稳定性提高,这与改性后纤维的亲水性下降相对应。纤维的力学性能较改性前有大的提高,其中化学交联对纤维力学性能提高效果最为明显。Using zein as raw material, zein nanofibers modified by chemical crosslinking, blend modification and enzymatic crosslinking were fabricated. The performances of the fibers after modification were measured and compared by gel permeation chromatography （GPC）, Fourier Transform Infrared Spectroscopy （FTIR）, scanning electron microscopy （SEM）, surface tension meter （ST） and electronic universal testing machine （EUTM）. The results showed that the morphologies of the fibers did not change much after modification, meanwhile the average diameters all decreased. The water stability of the fibers increased in accordance with the hydrophilic decrease for fibers after modification. The mechanical properties of fibers improved evidently after modification in comparison with those before modification, and the most effective method for mechanical property improvement of fibers was chemical modification.

关 键 词：化学交联 混纺改性 酶法交联 玉米醇溶蛋白 静电纺 纳米纤维 

分 类 号：TQ342.94[化学工程—化纤工业]