淀粉-蛋白-PVA膜的快速吸水与膨胀研究  

Study on Rapid Water Absorption and Expansion of Starch-protein-PVA Membrane

作　　者：王梅 戴睿[1] 杨文华[1,2,3] 单志华 WANG Mei;DAI Rui;YANG Wenhua;SHAN Zhihua(Light Textile and Food Institute Sichuan University,Chengdu 610065,China;National Engineering Laboratory for Clean Technology of Leather Manufacture,Sichuan University,Chengdu 610065,China;Key Laboratory of Leather Chemistry and Engineering of Ministry of Education,Sichuan University,Chengdu 610065,China)

机构地区：[1]四川大学轻纺与食品学院,四川成都610065 [2]四川大学制革清洁技术国家工程实验室,四川成都610065 [3]四川大学皮革化学与工程教育部重点实验室,四川成都610065

出　　处：《皮革科学与工程》2019年第3期19-24,共6页Leather Science and Engineering

基　　金：成都市2017年软科学研究项目(2017-RK00-00330-ZF)

摘　　要：对淀粉-蛋白-PVA膜(SCP膜)的制备及其性能进行了研究。首先,以玉米淀粉为原料,选择过氧化氢为氧化剂,在氧化淀粉与聚乙烯醇混合的基础上,甲醛作为交联剂与废弃革屑提取的胶原蛋白降解物制备快速吸水溶胀膜,并对其吸水性质进行了试验。通过正交实验在不同条件下选择最优实验方案,可知SCP膜的最优方案为:10 g CD,25 g聚乙烯醇(PVA),温度70℃,pH=9.0。以吸水倍数为指标,利用极差分析可知,各个因素对SCP膜的影响程度主次顺序为:蛋白降解物用量>PVA用量>温度>pH。其次,通过傅里叶红外光谱(FT-IR)分析、差式扫描量热(DSC)分析和热重(TGA)分析对SCP膜结构进行了分析。The preparation and properties of starch-protein-PVA membrane (SCP membrane) were studied. Using corn starch as raw material and hydrogen peroxide as oxidant, on the basis of mixing oxidized starch and polyvinyl alcohol, formaldehyde was used as cross-linking agent and collagen degradation product extracted from waste leather scraps to prepare rapid water-absorbing swelling film. The water absorption properties were tested. According to the orthogonal experiment, the optimum scheme of the composite membrane is: 10 g collagen degradation product, 25 g polyvinyl alcohol (PVA), temperature 70 ℃, pH=9.0. Taking the water absorption as the index, the order of the influence degree of each factor on the composite membrane was as follows: CD dosage>PVA dosage>temperature>pH. Secondly, the structure of the composite membrane was characterized by Fourier Infrared Spectroscopy (FT-IR), Differential Scanning Calorimetry (DSC) and Thermogravimetric (TGA).

关 键 词：淀粉 聚乙烯醇 废革屑 吸水 膨胀 

分 类 号：TS201.1[轻工技术与工程—食品科学]