复合增塑剂对玉米醇溶蛋白膜性能的影响  

Effect of compound plasticizer on zein films

作　　者：马立娜[1] 李桂娟[1] 李娜娜[1] 秦立福[1] 康海杨[1] 

机构地区：[1]长春工业大学化学工程学院,吉林长春130012

出　　处：《食品与机械》2012年第3期171-173,共3页Food and Machinery

摘　　要：以木糖醇和甘油为复合增塑剂制备出木糖醇/甘油/玉米醇溶蛋白膜。通过TGA、扫描电镜、红外光谱及电子织物强力机研究玉米醇溶蛋白膜的热性能、微观结构及力学性能。结果表明:在160℃之前膜性能稳定,与纯玉米醇溶蛋白膜相比,添加复合增塑剂后玉米醇溶蛋白膜表面产生了多孔结构,随木糖醇含量增加孔洞结构有增大的趋势,抗拉强度略有下降,伸长率有所提高。Xylitol/glycerol/zein film were produced with xylitol/glycerol as a compound plasticizer.Microstructure,mechanical properties and thermal stability of xylitol/glycerol/zein film were studied.The thermal properties of xylitol/zein film were stable below 160 ℃,there was holes in zein film which contained xylitol and glycerol,the tensile strength of xylitol/glycerol/zein film is lower than the tensile strength of pure zein film,but the elongation at break of the xylitol/glycerol/zein film was higher than the elongation at break of pure zein film.

关 键 词：玉米 醇溶蛋白 增塑剂 蛋白膜 热性能 微观结构 力学性能 

分 类 号：TQ320[化学工程—合成树脂塑料工业]