将F-12芳纶纤维进行表面改性,采用化学镀的方法在改性纤维表面负载Ni、Ag两层金属,制得镀 Ni-Ag芳纶复合导电纤维。通过SEM分别对初始纤维、改性后及完成化学镀后纤维的表观形貌进行观察,采用EDS和XRD分析了镀层元素及其含量,测试纤维的导电性、热稳定性、力学性能、表面金属层粘结性及耐酸碱腐蚀性。结果表明,镀Ni-Ag芳纶纤维表面金属层完整致密,无明显缺陷,界面结合强度高;电阻率为0.92×10-7Ω/cm,导电性好;5%热失重温度为506℃,耐高温性能优异;拉伸强度为2.53GPa,力学性能优良。
F-12 aramid fiber was subjected to surface modification,and the electroless plating method was used to load two layers of metal,nickel and silver,successfully prepared a nickel-silver aramid composite conductive fiber.Observing the surface morphology of the aramid fibers by SEM,the composition and phase structure of the coating were analyzed using EDS and XRD,the electrical conductivity,thermal stability,mechanical properties,surface silver layer adhesion and acid and alkali corrosion resistance of the fibers were tested.The results shown that the metal layer on the surface of the nickel-silver aramid fiber was smooth and dense,the interface bonding strength was high,and there were no obvious defects on the surface.The resistivity was 0.92×10-7Ω/cm,which shown the conductivity was good.Besides,the 5% thermal weight loss temperature was 506℃,which was excellent in heat resistance,and its tensile strength was 2.53GPa.It was a kind of high-performance organic conductive fibers.
[1] 杨永芳,刘敏江.导电高分子材料研究进展[J].工程塑料应用,2002,30(7):60-62.
[2] Jassal M,Ghosh S.Aramid fibres-an overview[J].Indian Journal of Fibre & Textile Research,2002,27(3):290-306.
[3] Li Z,Gong L,Cheng X,et al.Flexible silica aerogel composites strengthened with aramid fibers and their thermal behavior[J].Materials & Design,2016,99:349-355.
[4] Alwis K G N C,Burgoyne C J.Time-temperature superposition to determine the stress-rupture of aramid fibres[J].Applied Composite Materials,2006,13(4):249-264.
[5] 张丽.阻燃抗静电织物的研制[J].产业用纺织品,2004,22(4):17-21.
[6] Wang W,Li R,Ming T,et al.Surface silverized meta-aramid fibers prepared by bio-inspired poly(dopamine) functionalization[J].ACS Appl Mater Interfaces,2013,5(6):2062-2069.
[7] 齐胜利,吴战鹏,武德珍,等.具有高表面反射性和导电性的聚酰亚胺-银复合薄膜的制备[J].高分子通报,2013,36(4):133-145.
[8] 厉世能,顾嫒娟,梁国正.芳纶纤维表面改性的研究进展[J].化工新型材料,2012,40(4):1-3.
[9] 金辉,王一雍.芳纶纤维表面改性技术及相关机理的研究进展[J].化工新型材料,2009,37(3):24-26.
[10] 司帅.芳纶纤维的表面改性及其性能研究[D].武汉:武汉理工大学,2015.
[11] 梁晶晶.导电芳纶纤维的制备与性能研究[D].上海:上海大学,2013.
[12] 方东升.芳纶纤维表面金属化及铅基复合材料的制备研究[D].昆明:昆明理工大学,2013.
[13] Li S,Han K,Rong H,et al.Surface modification of aramid fibers via ammonia-plasma treatment[J].Journal of Applied Polymer Science,2014,131(10):245-253.
[14] Lim Y H,Tiemann K M,Heo G S,et al.Preparation and in vitro antimicrobial activity of silver-bearing degradable polymeric nanoparticles of polyphosphoester-block-poly(l-lactide)[J].ACS Nano,2015,9(2):1995-2008.
[15] Santos K D O,Elias W C,Signori A M,et al.Synthesis and catalytic properties of silver nanoparticle-linear polyethylene imine colloidal systems[J].The Journal of Physical Chemistry C,2012,116(7):4594-4604.
[16] 巩芳.化学镀镍技术的研究现状与发展方向[J].技术与市场,2012,19(4):117-117.
[17] 姚素薇.现代功能性镀层[M].北京:化学工业出版社,2013.
[18] 李龙,胡雪玉.芳纶表面化学镀镍与纤维性能[J].化工新型材料,2015,43(6):89-90.
[19] 李雯,庄勤亮.导电纤维及其智能纺织品的发展现状[J].产业用纺织品,2003,21(8):1-3.
[20] 张鸿.聚苯胺复合导电纤维的制备与应用基础研究[D].大连:大连理工大学,2008.
[21] 杨丑伟.F-12芳纶纤维合成及其应用研究进展[J].当代化工研究,2014(7):1-7.
[22] 曾金芳,乔生儒,丘哲明.F-12芳纶纤维及其复合材料[J].玻璃钢(复合材料),1999(4):37-40.
[23] 黎德育,冯丽华,郑振,等.次磷酸钠在化学镀中的应用[J].电镀与环保,2014,34(4):5-7.
[24] Mu S,Wu Z,Qi S,et al.Preparation of electrically conductive polyimide/silver composite fibers via in-situ surface treatment[J].Materials Letters,2010,64(15):1668-1671.
[25] 白苗,孙勇,段永华,等.芳纶纤维表面化学镀Ni/Sn研究[J].功能材料,2014,45(4):4134-4138.
