胶原蛋白/纤维素纳米纤维复合纤维的制备及交联改性  

Preparation and crosslinking modification of collagen/cellulose nanofiber composite fibers

作　　者：徐敏杰 唐树淇 俞春兰 江灿辉 岳程飞 蔡光明 XU Minjie;TANG Shuqi;YU Chunlan;JIANG Canhui;YUE Chengfei;CAI Guangming(School of Textile and Engineering,Wuhan Textile University,Wuhan 430073,China;Changzhou Chunshu Clothing Technology Co.Ltd.,Changzhou 213012,Jiangsu,China;State Key Laboratory of New Textile Materials and Advanced Processing Technologies,Wuhan Textile University,Wuhan 430073,China)

机构地区：[1]武汉纺织大学纺织科学与工程学院,湖北武汉430073 [2]常州春树服饰科技有限公司,江苏常州213012 [3]武汉纺织大学省部共建纺织新材料与先进加工技术国家重点实验室,湖北武汉430073

出　　处：《纺织高校基础科学学报》2025年第1期53-60,共8页Basic Sciences Journal of Textile Universities

基　　金：国家自然科学基金项目(52473046)。

摘　　要：为改善胶原蛋白纤维机械性能差、热稳定性差及遇水溶解等问题,引入纤维素纳米纤维(CNF)为增强组份,通过湿法纺丝技术制备胶原蛋白/CNF复合纤维,并采用1-乙基-3-(3-二甲基丙基)碳化二亚胺盐酸盐/N-羟基丁二酰亚胺(EDC/NHS)对其进行交联改性,通过红外光谱(FT-IR)、X射线衍射(XRD)、热力学分析研究了胶原蛋白复合纤维的结构与性能。结果表明,CNF的引入可显著改善胶原纤维的力学性能,与纯胶原蛋白纤维相比,胶原蛋白/CNF复合纤维的断裂强度提高了29.31%,经过交联改性后的胶原蛋白/CNF复合纤维断裂强度提高了72.40%;胶原蛋白/CNF复合纤维表面出现皱纹和微取向结构,且具有较高的分子间作用力和规整的结晶结构,保持了完整的胶原蛋白二级结构;胶原蛋白/CNF复合纤维的热稳定性显著提高。研究结果可为胶原复合纤维的实际应用提供数据基础和理论参考。To improve the mechanical properties,thermal stability,and water solubility issues of collagen fibers,cellulose nanofibers(CNF)were introduced as a reinforcing component.Collagen/CNF composite fibers were prepared by wet spinning technology,and crosslinking modification was carried out using 1-Ethyl-3-(3-dimethylpropyl)carbodiimide hydrochloride/N-Hydroxy succinimide(EDC/NHS).The structure and properties of the collagen composite fibers were studied using Fourier-transform infrared spectroscopy(FT-IR),X-ray diffraction(XRD),and thermodynamic analysis.The results show that the introduction of CNF significantly improved the mechanical properties of collagen fibers.Compared to pure collagen fibers,the tensile strength of the collagen/CNF composite fibers increased by 29.31%.After crosslinking modification,the tensile strength of the fibers increased by 72.40%.Its surface of the exhibited wrinkles and micro-oriented structures,with higher intermolecular interactions and a regular crystalline structure,while maintaining the intact secondary structure of collagen.Its thermal stability is significantly improved.This study provides data and theoretical references for the practical application of collagen composite fibers.

关 键 词：胶原蛋白 纤维素纳米纤维 湿法纺丝 交联浴交联 力学性能 

分 类 号：TS102.6[轻工技术与工程—纺织工程] TQ342.94[轻工技术与工程—纺织科学与工程]