羽毛角蛋白/海藻酸钠共混膜的交联改性  

Crosslinking modification of feather keratin/sodium alginate blend films

作　　者：何明[1] 窦瑶[1] 尹国强[2] 崔英德[1,3] 

机构地区：[1]西北工业大学材料学院,陕西西安710072 [2]仲恺农业工程学院化学化工学院,广东广州510225 [3]广州科技职业技术学院,广东广州510550

出　　处：《化工进展》2017年第B11期572-577,共6页Chemical Industry and Engineering Progress

基　　金：国家自然科学基金(21176269);广东省自然科学基金(2016A030313371);广州市科技计划(201704030130)项目

摘　　要：以山梨醇为增塑剂,乙二醛、戊二醛或自制的双醛海藻酸钠(ADA)为交联剂,采用浇铸法制备了交联改性的羽毛角蛋白(FK)/海藻酸钠(SA)共混膜,研究了交联改性对共混膜结构和性能的影响。FTIR分析证实了交联反应的发生,SEM结果表明,经过交联改性的共混膜内部结构更加致密。性能测试结果表明,交联改性后共混膜的热稳定性和阻湿性增强,透光性减弱,断裂伸长率减小。乙二醛、戊二醛交联时膜的抗拉强度增加,ADA交联时膜的抗拉强度减小。Crosslinked and sorbitol-plastieized feather keratin （FK） / sodium alginate （SA） blendfilms were prepared by the casting process, using glyoxal, glutaraldehyde, or alginate dialdehyde（ADA） as crosslinker. The effects of crosslinking modification on the structure and properties ofthe blend films were investigated. FTIR analysis confirmed the crosslinking reaction in theprocess of modification. SEM results showed that crosslinking made the microstructure of theblend films more compact. After crosslinking, the thermal stability and moisture resistance ofthe blend films were enhanced, the transmittance and the elongation at break decreased. Thetensile strength increased when crosslinked with glyoxal or glutaraldehyde, and decreased whencrosslinked with ADA.

关 键 词：羽毛 角蛋白 蛋白膜 共混 交联 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业]