丝素蛋白/海藻酸钠复合纤维的制备与性能表征
|
摘要
为了提高海藻酸钠(SA)纤维的力学性能,将从蚕茧中提取的丝素蛋白(SF)和SA共混,制备了SF/SA纺丝溶液,通过湿法纺丝制得SF/SA复合纤维,对纺丝溶液流变性能进行了研究,对SF/SA复合纤维进行了结构与性能表征。结果表明:SF/SA纺丝溶液为切力变稀的假塑性流体,纺丝溶液的表观黏度随SF含量增加呈增加的趋势,当SF质量分数(相对SA)为10%时,纺丝溶液结构黏度指数最小,可纺性最好;提取的SF以无规卷曲结构和β-折叠结构为主,SA和SF间有较强的氢键作用;SF/SA复合纤维以非晶形态存在,纤维表面存在明显的沟槽结构,与纯SA纤维相比,SF的加入提高了SA纤维的力学性能,SF质量分数为10%的SF/SA复合纤维的断裂强度高达1.63 cN/dtex,较SA的提高了22.5%,SF的加入使复合纤维的耐热性略有降低。
In order to develop the mechanical properties of sodium alginate( SA) fiber,the spinning solution of silk fibroin/sodium alginate( SF/SA) was prepared by blending SA with SF extracted from silkworm cocoon and was produced into SF/SA composite fiber by wet spinning process. The rheological behavior of the spinning solution was studied. The structure and properties of SF/SA composite fiber were characterized. The results showed that the SF/SA spinning solution was a shear-thinning pseudoplastic fluid; the apparent viscosity of the spinning solution was increased with the increase of silk fibroin content and the structural viscosity index was minimized but the spinnability was optimized at the SF mass fraction of 10% based on SA; the extracted SF was dominantly of random-coil conformational structure and β pleated sheet structure,and there was strong hydrogen bond effect between SA and SF; the SF/SA composite fiber existed in the amorphous morphology with obvious grooves on the fiber surface; the addition of SF could increase the mechanical properties of SA fiber and could slightly decrease the heat resistance of SF/SA composite fiber; as compared with that of pure SA fiber,the breaking strength of SF/SA composite fiber was up to 1. 63 cN/dtex with a growth of 22. 5% when the SF mass fraction was 10%.
In order to develop the mechanical properties of sodium alginate( SA) fiber,the spinning solution of silk fibroin/sodium alginate( SF/SA) was prepared by blending SA with SF extracted from silkworm cocoon and was produced into SF/SA composite fiber by wet spinning process. The rheological behavior of the spinning solution was studied. The structure and properties of SF/SA composite fiber were characterized. The results showed that the SF/SA spinning solution was a shear-thinning pseudoplastic fluid; the apparent viscosity of the spinning solution was increased with the increase of silk fibroin content and the structural viscosity index was minimized but the spinnability was optimized at the SF mass fraction of 10% based on SA; the extracted SF was dominantly of random-coil conformational structure and β pleated sheet structure,and there was strong hydrogen bond effect between SA and SF; the SF/SA composite fiber existed in the amorphous morphology with obvious grooves on the fiber surface; the addition of SF could increase the mechanical properties of SA fiber and could slightly decrease the heat resistance of SF/SA composite fiber; as compared with that of pure SA fiber,the breaking strength of SF/SA composite fiber was up to 1. 63 cN/dtex with a growth of 22. 5% when the SF mass fraction was 10%.
引文
[1]Wu Tiantian,Huang Jiaqi,Jiang Yangyang,et al.Formation of hydrogels based on chitosan/alginate for the delivery of lysozyme and their antibacterial activity[J].Food Chem,2017,240:361-369.
[2]Smyth M,Rader C,Bras J,et al.Characterization and mechanical properties of ultraviolet stimuli-responsive functionalized cellulose nanocrystal alginate composites[J].J Appl Polym Sci,2017,13(7):45857.
[3]林俊杰,许伟鸿,邓玲利,等.SA溶液浓度对乳液静电纺丝SA/PCL纳米纤维成形的影响[J].合成纤维工业,2017,40(6):7-11.Lin Junjie,Xu Weihong,Deng Lingli,et al.Effect of SA solution concentration on formation of SA/PCL nanofibers via emulsion electrospinning process[J].Chin Syn Fiber Ind,2017,40(6):7-11.
[4]孙婷婷,周蓉,张元明.海藻酸钠与纳米晶纤维素共混膜制备与性能研究[J].成都纺织高等专科学校学报,2017,34(1):65-68.Sun Tingting,Zhou Rong,Zhang Yuanming,et al.Preparation and properties research on sodium alginate/nanocrystalline cellulose blend membrane[J].J Chengdu Text Coll,2017,34(1):65-68.
[5]黄亚飞,朱平,隋淑英,等.海藻酸钙/壳聚糖复合纤维的制备及性能研究[J].合成纤维工业,2017,40(1):6-10.Hang Yafei,Zhu Ping,Sui Shuying,et al.Preparation and properties of calcium alginate/chitosan composite fibers.[J].Chin Syn Fiber Ind,2017,40(1):6-10.
[6]Rockwood D N,Preda R C,Yücel T,et al.Materials fabrication from bombyx mori silk fibroin[J].Nat Protoc,2011,6(10):1612.
[7]Rrd S,Cavicchioli M,Lima L R,et al.Fabrication of biocompatible,functional,and transparent hybrid films based on silk fibroin and epoxy-silane for biophotonics[J].Acs Appl Mater Interface,2017,9(33):27905-27917.
[8]吴静,郭静,杨利军,等.海藻酸钠/南极磷虾蛋白/聚乙烯醇复合纤维的分子作用及其性能表征[J].纺织学报,2017,38(2):7-13.Wu Jing,Guo Jing,Yang Lijun,et al.Molecular interaction and characterization of sodium alginate/antarctic krill protein/polyvinyl alcohol composite fiber[J].J Text Res,2017,38(2):7-13.
[9]祝国富,张鸿,李会涛,等.化学交联改性丝素蛋白/海藻酸钠纤维的制备与性能[J].复合材料学报,2017,34(11):2571-2579.Zhu Guofu,Zhang Hong,Li Huitao,et al.Preparation and performance of chemical cross-linking silk fibroin/aodium alginate fiber[J].Acta Mater Comp Sin,2017,34(11):2571-2579.
[10]沈新元.高分子材料加工原理[M].第2版.北京:中国纺织出版社,2009:135-160.Shen Xinyuan.Principle of polymer materials processing[M].2nd ed.Beijing:China Textile Publishing House,2009:135-160.
[11]Nakano M S T.Infrared rheo-optics of bombyx mori fibroin film by dynamic step-scan FTIR spectroscopy combined with digital signal processing[J].Appl Spectrosc,2000,54(7):968-973.
[12]Johari N,Madaah H H,Samadikuchaksaraei A.Novel fluoridated silk fibroin/Ti O2nanocomposite scaffolds for bone tissue engineering[J].Mater Sci Eng C Mater Biol Appl,2018,82:265-276.
[13]刘越,朱平,马佳娜.纯海藻酸盐纤维的性能[J].纺织学报,2009,30(8):13-16.Liu Yue,Zhu Ping,Ma Jiana.Properties of alginate fiber[J].J Text Res,2009,30(8):13-16.
[14]Sashina E S,Bochek A M,Novoselov N P,et al.Structure and solubility of natural silk fibroin[J].Russ J Appl Chem,2006,79(6):869-876.
[15]陈佳弘,江虹锐,余炼,等.丝素蛋白在氯化钙-乙醇-水体系中的溶解行为及其结构的变化[J].现代食品科技,2017(9):37-45.Chen Jiahong,Jiang Hongrui,Yu Lian,et al.Dissolution behavior and structure changes of silk fibroin in calcium chlorideethanol-water system[J].Mod Food Sci Tech,2017(9):37-45.
[2]Smyth M,Rader C,Bras J,et al.Characterization and mechanical properties of ultraviolet stimuli-responsive functionalized cellulose nanocrystal alginate composites[J].J Appl Polym Sci,2017,13(7):45857.
[3]林俊杰,许伟鸿,邓玲利,等.SA溶液浓度对乳液静电纺丝SA/PCL纳米纤维成形的影响[J].合成纤维工业,2017,40(6):7-11.Lin Junjie,Xu Weihong,Deng Lingli,et al.Effect of SA solution concentration on formation of SA/PCL nanofibers via emulsion electrospinning process[J].Chin Syn Fiber Ind,2017,40(6):7-11.
[4]孙婷婷,周蓉,张元明.海藻酸钠与纳米晶纤维素共混膜制备与性能研究[J].成都纺织高等专科学校学报,2017,34(1):65-68.Sun Tingting,Zhou Rong,Zhang Yuanming,et al.Preparation and properties research on sodium alginate/nanocrystalline cellulose blend membrane[J].J Chengdu Text Coll,2017,34(1):65-68.
[5]黄亚飞,朱平,隋淑英,等.海藻酸钙/壳聚糖复合纤维的制备及性能研究[J].合成纤维工业,2017,40(1):6-10.Hang Yafei,Zhu Ping,Sui Shuying,et al.Preparation and properties of calcium alginate/chitosan composite fibers.[J].Chin Syn Fiber Ind,2017,40(1):6-10.
[6]Rockwood D N,Preda R C,Yücel T,et al.Materials fabrication from bombyx mori silk fibroin[J].Nat Protoc,2011,6(10):1612.
[7]Rrd S,Cavicchioli M,Lima L R,et al.Fabrication of biocompatible,functional,and transparent hybrid films based on silk fibroin and epoxy-silane for biophotonics[J].Acs Appl Mater Interface,2017,9(33):27905-27917.
[8]吴静,郭静,杨利军,等.海藻酸钠/南极磷虾蛋白/聚乙烯醇复合纤维的分子作用及其性能表征[J].纺织学报,2017,38(2):7-13.Wu Jing,Guo Jing,Yang Lijun,et al.Molecular interaction and characterization of sodium alginate/antarctic krill protein/polyvinyl alcohol composite fiber[J].J Text Res,2017,38(2):7-13.
[9]祝国富,张鸿,李会涛,等.化学交联改性丝素蛋白/海藻酸钠纤维的制备与性能[J].复合材料学报,2017,34(11):2571-2579.Zhu Guofu,Zhang Hong,Li Huitao,et al.Preparation and performance of chemical cross-linking silk fibroin/aodium alginate fiber[J].Acta Mater Comp Sin,2017,34(11):2571-2579.
[10]沈新元.高分子材料加工原理[M].第2版.北京:中国纺织出版社,2009:135-160.Shen Xinyuan.Principle of polymer materials processing[M].2nd ed.Beijing:China Textile Publishing House,2009:135-160.
[11]Nakano M S T.Infrared rheo-optics of bombyx mori fibroin film by dynamic step-scan FTIR spectroscopy combined with digital signal processing[J].Appl Spectrosc,2000,54(7):968-973.
[12]Johari N,Madaah H H,Samadikuchaksaraei A.Novel fluoridated silk fibroin/Ti O2nanocomposite scaffolds for bone tissue engineering[J].Mater Sci Eng C Mater Biol Appl,2018,82:265-276.
[13]刘越,朱平,马佳娜.纯海藻酸盐纤维的性能[J].纺织学报,2009,30(8):13-16.Liu Yue,Zhu Ping,Ma Jiana.Properties of alginate fiber[J].J Text Res,2009,30(8):13-16.
[14]Sashina E S,Bochek A M,Novoselov N P,et al.Structure and solubility of natural silk fibroin[J].Russ J Appl Chem,2006,79(6):869-876.
[15]陈佳弘,江虹锐,余炼,等.丝素蛋白在氯化钙-乙醇-水体系中的溶解行为及其结构的变化[J].现代食品科技,2017(9):37-45.Chen Jiahong,Jiang Hongrui,Yu Lian,et al.Dissolution behavior and structure changes of silk fibroin in calcium chlorideethanol-water system[J].Mod Food Sci Tech,2017(9):37-45.