聚丁二酸丁二醇酯/丝胶蛋白共混纤维的制备及其性能  

Preparation and properties of poly(butylene succinate)/silk sericin blend fiber

作　　者：夏榆 姚菊明[1] 周杰 毛梦慧 张玉梅[4] 姚勇波[2,3] XIA Yu;YAO Juming;ZHOU Jie;MAO Menghui;ZHANG Yumei;YAO Yongbo(College of Materials Science and Engineering,Zhejiang Sci-Tech University,Hangzhou,Zhejiang 310018,China;Nanotechnology Research Institute,Jiaxing University,Jiaxing,Zhejiang 314001,China;Key Laboratory of Yarn Materials Forming and Composite Processing Technology of Zhejiang Province,Jiaxing University,Jiaxing,Zhejiang 314001,China;Key Laboratory of High Performance Fibers&Products,Ministry of Education,Donghua University,Shanghai 201620,China)

机构地区：[1]浙江理工大学材料科学与工程学院,浙江杭州310018 [2]嘉兴学院纳米技术研究院,浙江嘉兴314001 [3]浙江省纱线材料成形与复合加工技术研究重点实验室,浙江嘉兴314001 [4]东华大学高性能纤维及制品教育部重点实验室,上海201620

出　　处：《纺织学报》2023年第4期1-7,共7页Journal of Textile Research

基　　金：浙江省纱线材料成形与复合加工技术研究重点实验室开放基金项目(MTC-2022-12)。

摘　　要：为提高聚丁二酸丁二醇酯(PBS)纤维的服用舒适性,将PBS与天然高分子丝胶蛋白共混,经熔融纺丝制成PBS/丝胶蛋白共混纤维,研究了丝胶蛋白质量分数对纤维形态结构、化学结构、热性能、力学性能与降解性能的影响。结果表明:共混纤维具有丝胶蛋白为分散相,PBS为连续相的形态结构;丝胶蛋白的存在改善了PBS纤维断裂伸长率过高的问题,当其质量分数达到15%时,共混纤维的断裂伸长率为8.9%;共混纤维的饱和回潮率为3.90%,接近于合成纤维中的锦纶,说明共混纤维亲肤性能优良;此外,土埋降解实验6周后共混纤维的质量损失率可达53.6%,具有快速降解的能力。Objective Poly(butylene succinate)(PBS)is a synthetic biodegradable polymer and silk sericin is a natural biodegradable polymer.PBS fiber can be prepared by melt spinning process,which is applied in textile industry as raw material.Silk sericin can be used as moisturizer in skincare and textile industries.To improve the skin-friendliness of PBS fiber,PBS and silk sericin was mixed by melt blending,then the blend fiber was prepared by melt spinning process.Method After vacuum drying at 80℃for 4 h,the PBS and silk sericin were melt blended using an internal mixer at the rotation rate of 60 r/min for 25 min.The mixing temperature of the PBS/silk sericin blends was set to 140℃,and the weight ratio of PBS/silk sericin is shown in Tab.1.After that,the PBS/silk sericin blend fibers were spun through a single-screw extruder at 160℃.Then,the fiber was cooled in a water bath at room temperature.The extrusion speed was 1.95 g/min,the drawing speed was 3.60 m/min,and the draw ratio was 4.Results The scanning electron microscopy(SEM)of the cross-section of the PBS/silk sericin blend fiber is shown in Fig.1.The rough cross-section of PBS/silk sericin blend fiber indicates poor compatibility between PBS and silk sericin.There were small voids on the cross\|section of the blend fibers,the number of voids would increase with the rise of silk sericin mass fraction.The XRD pattern of PBS/silk sericin blend fiber is shown in Fig.3 and the crystallinity of PBS is listed in Tab.2.With the increase of silk sericin mass fraction,the crystallinity of the blend fiber decreases.It seems that the crystallization process of PBS was obstructed by the dispersion of silk sericin in the fiber.The mechanical property of PBS/silk sericin blend fiber is shown in Fig.4.Tensile strength and elongation at break of the blend fiber decrease when the silk sericin mass fraction increases,and the elongation at break of PBS fiber is 212.1%.However,for the blend fiber when the mass fraction of silk sericin became 15%,the elongation at break of was only

关 键 词：聚丁二酸丁二醇酯 丝胶蛋白 共混纤维 吸湿性 生物可降解性 

分 类 号：TQ342.9[化学工程—化纤工业]