采用聚磷酸铵(APP)作为负聚电解质,聚六亚甲基双胍(PHMB)和壳聚糖(CS)的复配溶液作为正聚电解质,利用层层自组装技术对羽绒纤维进行功能整理,得到兼具阻燃性能和抗菌性能的羽绒纤维(记作DF-APC),通过冷场发射扫描电子显微镜、全自动热重分析仪、微型燃烧量热仪等对样品的微观形貌、热稳定性和燃烧性能进行分析和测试。结果表明:经过10次组装循环后,DF-APC10表面覆盖均匀的薄膜,同时改性对白度几乎没有影响,但蓬松度略有下降。此外,DF-APC10几乎无法在空气中被点燃,与原始羽绒纤维相比,其热释放速率峰值和总热释放量分别从154.9W/g和15.9kJ/g下降至111.2W/g和13.5kJ/g。抗菌测试显示,18h内DF-APC10对金黄色葡萄球菌和大肠杆菌的抑制效率均超过99.99%。
Using ammonium polyphosphate (APP) as the negative polyelectrolyte and a composite solution of poly(hexamethylene biguanide)(PHMB) and chitosan (CS) as the positive polyelectrolytes,functional finishing of down fibers (DF) was done through layer-by-layer (LbL) self-assembly technology,resulting in flame-retardant and antibacterial down fibers (denoted as DF-APC).The microstructure,thermal stability,and combustion performance of the samples were analyzed and tested using cold-field emission scanning electron microscopy,a fully automatic thermogravimetric analyzer,and microscale combustion calorimetry.The results showed that after 10 self-assembly cycles,the surface of DF-APC10 was covered with a uniform film.The modification had almost no impact on the whiteness of DF,but slightly reduced its fluffiness.Additionally,DF-APC10 was nearly non-flammable in air.Compared to DF,its peak heat release rate (pHRR) and total heat release (THR) decreased from 154.9W/g and 15.9kJ/g to 111.2W/g and 13.5kJ/g,respectively.Antibacterial test indicated that DF-APC10 could achieve an inhibition efficiency of over 99.99% against Staphylococcus aureus and Escherichia coli within 18h.
[1] Li H,Qi L,Li J.Effects of DTAC on the warmth retention of down fiber based on response surface method[J].Fibers and Polymers,2016,17:1115-1122.
[2] Yang S,Li M,Shen X.Fractal approach to structure and thermal property of down fiber assembly[J].Journal of Natural Fibers,2018,15(6):853-859.
[3] Qiang T,Pu Y,Zhang Q.A clean and efficient down proces-sing technology based on two physical methods[J].Journal of Engineered Fibers and Fabrics,2020,15(9):155892502094996.
[4] Qi P,Chen F,Li Y,et al.A review of durable flame-retardant fabrics by finishing:fabrication strategies and challenges[J].Advanced Fiber Materials,2023,5(3):731-763.
[5] Shen T X,Yong G,Wang L,et al.Preparation of antibacterial down fibers by chemical grafting using novel guanidine salt oligomer[J].Polymers for Advanced Technologies,2021,32(10):4082-4093.
[6] Kawada T,Kuroyanagi J,Okazaki F,et al.An integrative evaluation method for the biological safety of down and feather materials[J].International Journal of Molecular Sciences,2019,20(6):1434.
[7] 王迎娣,齐鲁.钨酸钠及其复配体系对羽绒纤维阻燃性能的影响[J].毛纺科技,2014,42(6):6-9.
[8] Liu B J,Chen Q,Mo Q L,et al.Robust,versatile,green and emerging layer-by-layer self-assembly platform for solar energy conversion[J].Coordination Chemistry Reviews,2023,493:215285.
[9] Kim J,Lee K,Yoon S G,et al.Eco-friendly surface coating of wool/polyester blend fabric using a combination of montmorillonite and polyquaternium 10:enhanced flame-retardant performance using layer-by-layer assembly[J].Colloids and Surfaces A:Physicochemical and Engineering Aspects,2024,688:133691.
[10] Tian M,Hu X,Qu L,et al.Ultraviolet protection cotton fabric achieved via layer-by-layer self-assembly of graphene oxide and chitosan[J].Applied Surface Science,2016,377:141-148.
[11] Gadkari R R,Ali S W,Joshi M,et al.Leveraging antibacterial efficacy of silver loaded chitosan nanoparticles on layer-by-layer self-assembled coated cotton fabric[J].International Journal of Biological Macromolecules,2020,162:548-560.
[12] Xiang F,Zhao M,Yang X,et al.Self-assembly of modified cellulose nanocrystals on flexible fabric via hydrophobic force induction for versatile applications[J].Progress in Organic Coatings,2024,190:108406.
[13] Saini S,Gupta A,Singh N,et al.Functionalization of linen fabric using layer by layer treatment with chitosan and green tea extract[J].Journal of Industrial and Engineering Chemistry,2020,82:138-143.
[14] Hou F,Zhu M,Liu Y,et al.A self-assembled bio-based coa-ting with phytic acid and DL-arginine used for a flame-retar-dant and antibacterial cellulose fabric[J].Progress in Organic Coatings,2022,173:107179.
[15] Jin Q,Gao S,Xu Y.A feasible and facile method for the anticounterfeiting of down fiber[J].Advances in Materials Science and Engineering,2021,2021(1):2693047.
[16] 应丽丽,李长龙,王宗乾,等.植酸作用下锆离子修饰羽绒及其保温性能[J].纺织学报,2020,41(10):94-100.
[17] Jiang X C,Li P,Liu Y,et al.Flame-retardant ramie fabrics with APP:flame retardancy,flame-retardant mechanism and mechanical properties[J].Cellulose,2023,30(2):1321-1334.
[18] Qiang T,Zhang Q,Chen L.A clean and economical processing system to improve the fluffiness of down fibers based on alkalized Zr(SO4)2[J].Journal of Cleaner Production,2019,236:117625.
[19] Wang Z,Wan Y,Zheng X,et al.Enhancing the radiative heating performance of down fibers by layer-by-layer self-assembly[J].Journal of Cleaner Production,2021,298:126760.
[20] Bi X,Di H,Liu J,et al.A core-shell-structured APP@COFs hybrid for enhanced flame retardancy and mechanical property of epoxy resin (EP)[J].Advanced Composites and Hybrid Materials,2022,5(3):1743-1755.
[21] Wu J,Liu F,Chen C,et al.Long-term antibacterial activity by synergistic release of biosafe lysozyme and chitosan from LBL-structured nanofibers[J].Carbohydrate Polymers,2023,312:120791.
[22] Li L,Wang X,Li D,et al.LBL deposition of chitosan/heparin bilayers for improving biological ability and reducing infection of nanofibers[J].International Journal of Biological Macromolecules,2020,154:999-1006.
[23] Wang W Y,Hu H W,Chiou J C,et al.Poly (hexamethylene biguanide) hydrochloride (PHMB)-based materials:synthesis,modification,properties,determination,and application[J].Polymer Chemistry,2023,14(48):5226-5252.
基金资助
江苏省第六期“333高层次人才培养工程”((2022)3-16-216);六安市海洋羽毛有限公司产学研合作项目(210187)
PDF
