聚酯织物表面铜的无电沉积与润湿性及抗菌性研究
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摘要
本文以聚多巴胺为粘结层,在聚酯织物表面通过溶液无电沉积法(醋酸铜为铜源、抗坏血酸为还原剂)制备了具有粗糙结构的金属铜;经十二硫醇处理后,制备了超疏水聚酯织物(接触角为161.8°,滚动角为8°)。利用热重分析仪、场发射扫描电子显微镜、X射线光电子能谱/X射线衍射、接触角测量仪等设备对铜沉积量、样品表面形貌、化学组成、表面润湿性进行了表征。进一步讨论了样品加速水洗条件下超疏水耐用性和抗菌性。结果表明,经4次加速水洗后,样品表面接触角仍高达152°,滚动角为22°。经4次加速水洗后,超疏水织物表面仍具有优异的抗菌性性能(金黄色葡萄球菌的抑菌率为99.85%,大肠杆菌的抑菌率为99.99%)。
In this paper,by electroless deposition from the aqueous solution of copper acetate and ascorbic acid,the metallic copper with rough micro-structures was deposited on the polyester fabric. After passivationby dodecanethiol,the fabric turned to be superhydrophobic( contact angle 161. 8°,roll angle 8°). The amount and surface morphology of the deposited copperwas characterized by thermogravimetric analyzer and field emission scanning electron microscope,respectively. The surface chemical composition and the surface wettability was characterized by X-ray photoelectron spectroscopy/X-ray diffraction and contact angle meter,respectively. The durability of the superhydrphobicity was assessed by accelerated washing test. It was found that,after 10 cycles of accelerated washing,the sample possessed high water contact angle of 152° and low sliding angle of 22°. Moreover,the copper coated superhydrophobic fabric showed excellent antibacterial activity against Staphylococcus aureus( antibacterial rate 99. 85 %) and Escherichia coli( antibacterial rate 99. 99 %) after accelerated washing for 4 cycles.
In this paper,by electroless deposition from the aqueous solution of copper acetate and ascorbic acid,the metallic copper with rough micro-structures was deposited on the polyester fabric. After passivationby dodecanethiol,the fabric turned to be superhydrophobic( contact angle 161. 8°,roll angle 8°). The amount and surface morphology of the deposited copperwas characterized by thermogravimetric analyzer and field emission scanning electron microscope,respectively. The surface chemical composition and the surface wettability was characterized by X-ray photoelectron spectroscopy/X-ray diffraction and contact angle meter,respectively. The durability of the superhydrphobicity was assessed by accelerated washing test. It was found that,after 10 cycles of accelerated washing,the sample possessed high water contact angle of 152° and low sliding angle of 22°. Moreover,the copper coated superhydrophobic fabric showed excellent antibacterial activity against Staphylococcus aureus( antibacterial rate 99. 85 %) and Escherichia coli( antibacterial rate 99. 99 %) after accelerated washing for 4 cycles.
引文
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[17]汪志乐.基于聚多巴胺的超疏水织物制备及其稳定性研究[D].南昌航空大学,2016.
[2]庄伟,徐丽慧,徐壁,等.改性Si O2水溶胶在棉织物超疏水整理中的应用[J].纺织学报,2011,32(9):68-68.
[3]吴磊,李步成,张俊平.稳定的超疏水织物和海绵应用于吸油和油水分离[C].中国化学会胶体与界面化学会议.2015.
[4]石彦龙,杨武,冯晓娟.超疏水-超亲油棉织物的制备及在油水分离中的应用[J].高等学校化学学报,2015,36(9):1724-1729.
[5]张明,臧德利,包文慧,等.超疏水性织物的制备及其在油品回收领域的潜能[J].科技导报,2016,34(19):105-110.
[6]Zhang X,Shi F,Niu J,et al.Superhydrophobic surfaces:from structural control to functional application[J].Journal of Materials Chemistry,2008,18(6):621-633.
[7]Hong X,Gao X,Jiang L.Application of superhydrophobic surface with high adhesive force in no lost transport of superparamagnetic microdroplet[J].Journal of the American Chemical Society,2007,129(6):1478-9.
[8]Nosonovsky M,Bhushan B.Superhydrophobic surfaces and emerging applications:Non-adhesion,energy,green engineering[J].Current Opinion in Colloid&Interface Science,2009,14(4):270-280.
[9]贺武,帅韬,高明阳,等.聚多巴胺形成的机理及影响因素[J].江西化工,2017(4):4-10.
[10]Lynge M E,Van d W R,Postma A,et al.Polydopamine--a nature-inspired polymer coating for biomedical science[J].Nanoscale,2011,3(12):4916-4928.
[11]Yang K,Lee J S,Kim J,et al.Polydopamine-mediated surface modification of scaffold materials for human neural stem cell engineering[J].Biomaterials,2012,33(29):6952-6964.
[12]Dan Z,Ni H,Xu B,et al.Microstructure and antibacterial properties of AISI 420 stainless steel implanted by copper ions[J].Thin Solid Films,2005,492(1):93-100.
[13]Park S J,Park Y M.Eco-dyeing and antimicrobial properties of chlorophyllin copper complex extracted from Sasa veitchii[J].Fibers&Polymers,2010,11(3):357-362.
[14]代学玉,冷宝林,高兰玲,等.刻蚀法制备超疏水表面的研究进展[J].山东化工,2016,45:49-50.
[15]白凤翎,马春颖.铜的抗菌杀菌功能试验研究[J].粮油加工与食品机械,2004(1):71-72.
[16]付昱晨.多功能超疏水抗菌材料的制备及其表面性能的研究[D].浙江大学,2017.
[17]汪志乐.基于聚多巴胺的超疏水织物制备及其稳定性研究[D].南昌航空大学,2016.