细菌纤维素/聚乙烯醇/胶原蛋白复合膜的制备及表征  

Preparation and Characterization of Bacterial Cellulose/Poly(vinyl alcohol)/Collagen Composite Films

作　　者：杨群[1,2] 代正伟 董军[1] 董绍伟[3] 顾强 

机构地区：[1]嘉兴学院材料与纺织工程学院,浙江嘉兴314001 [2]迪肯大学前沿材料研究所 [3]江苏进出口检验检疫局,江苏南京210000

出　　处：《高分子材料科学与工程》2017年第11期178-182,190,共6页Polymer Materials Science & Engineering

基　　金：嘉兴市生物医用高分子材料创新团队开放基金资助项目(MTC2015-006);国家自然科学基金青年基金资助项目(51303065);嘉兴市皮革和纺织品染整清洁生产创新团队开放基金(JXLD2016-06);江苏出入境检验检疫局质检总局科研项目(2015K151)

摘　　要：以细菌纤维素(BC)膜为基材,聚乙烯醇(PVA)和胶原蛋白(COL)为增强材料制备了复合膜,并采用碳化二亚胺(1-(3-二甲氨基丙基)-3-乙基碳二亚胺盐酸盐(EDC·HCl)为交联剂对制备的复合膜进行交联处理。利用红外光谱、扫描电镜、X射线衍射、热重分析、拉伸强力、吸水性能等测试手段对复合膜的化学结构、微观结构及性能进行了研究。研究表明,PVA和COL均匀地被吸附并沉积于BC的三维网络结构中,或包裹在BC纤维上;与BC/PVA/COL复合膜相比,采用EDC·HCl交联后的复合膜的溶胀性能降低,热降解稳定性和拉升强力得到了增强,断裂延伸率略有下降;但相对于BC膜来说,复合膜的拉伸强度和断裂伸长率都有较大程度的提升。In this study, bacterial cellulose （BC） / poly （ vinyl alcohol） （PVA）/collagen （COL） composite films were prepared by using BC film as base material, PVA and COL as reinforcing materials. And 1-ethyl-3 （3- diaminopropy）-carbodiimide hydrochloride （EDC＂ HC1） was used as cross-linking agent to prepare the cross-linked composite films. Chemical structure, microstructure and properties of these composite films were investigated by FT-IR, SEM, XRD, TG, tensile test and water absorbency. Results show that, PVA and COL molecules are adsorbed and deposited inside of 3D nanofiber network of BC, or coated on BC fibers. The composite films after cross-linked by EDC·HCl, its water absorbency decreases, and thermal degradation stability and tensile strength are enhanced, but elongation at break decreases slightly. Compared with BC film, tensile strength and elongation at break of these composite films have a great improvement no matter cross-linked or not.

关 键 词：细菌纤维素 胶原蛋白 聚乙烯醇 交联 复合膜 

分 类 号：TQ325.9[化学工程—合成树脂塑料工业]