【摘要】：本文介紹了對(duì)絲織物進(jìn)行抗菌整理的原因和現(xiàn)狀及納米銀的性質(zhì)和應(yīng)用現(xiàn)狀;分析了目前國(guó)內(nèi)外在抗菌織物研究方面的主要方法,針對(duì)目前已有的制備納米銀抗菌織物方法的缺點(diǎn),提出采用綠色環(huán)保的磁控濺射技術(shù),在室溫條件下,在絲織物基材表面沉積功能性納米結(jié)構(gòu)銀鍍層,實(shí)現(xiàn)紡織材料表面抗菌功能化。 本課題采用磁控濺射表面沉積技術(shù),在絲織物表面構(gòu)建納米銀鍍層,賦予其特殊的抗菌性能。論文主要探討了濺射工藝參數(shù)(濺射功率,濺射壓強(qiáng)和濺射時(shí)間)及放置時(shí)間對(duì)抗菌性能的影響。采用振蕩燒瓶法,選擇大腸桿菌及金黃色葡萄球菌為試驗(yàn)菌種,對(duì)不同濺射工藝參數(shù)及放置時(shí)間下的絲織物基納米銀薄膜樣品進(jìn)行抗菌性能測(cè)試�？咕鷾y(cè)試結(jié)果表明:濺射時(shí)間對(duì)絲織物上納米結(jié)構(gòu)銀薄膜的抗菌性影響較大,當(dāng)濺射時(shí)間為60s時(shí),樣品對(duì)大腸桿菌和金黃色葡萄球菌已表現(xiàn)出了良好的抑制作用,抑菌率分別為99.30%和99.89%。但隨著濺射時(shí)間的延長(zhǎng),抑菌率稍有下降。在一定膜厚下,隨濺射功率的增大,抗菌性能略有下降。隨著濺射壓強(qiáng)的增加,樣品的抗菌性能略有改善。當(dāng)納米銀膜樣品在空氣中放置不同時(shí)間后,樣品對(duì)大腸桿菌和金黃葡萄球菌的抑菌率有所下降。放置28天后,對(duì)大腸桿菌的抑菌率下降較明顯,對(duì)金黃葡萄球菌的抑菌率保持在70%以上。 論文同時(shí)對(duì)銀鍍層微觀結(jié)構(gòu)如鍍層厚度、鍍層顆粒結(jié)構(gòu)、鍍層的晶態(tài)結(jié)構(gòu)和鍍層的表面形貌等進(jìn)行表征與分析,利用掃描電鏡(SEM)觀察薄膜的表面形態(tài);借助原子力顯微鏡(AFM)分析了納米銀薄膜的形貌特征和粒徑;采用X射線衍射(XRD)測(cè)試薄膜的晶態(tài)結(jié)構(gòu)。SEM和AFM分析結(jié)果顯示:隨濺射時(shí)間的增加,纖維表面的納米銀顆粒逐漸增加,薄膜厚度也隨之增加,膜的致密性、均勻性越來(lái)越好,表面積越來(lái)越大,納米銀粒子的平均粒徑逐漸增大。XRD測(cè)試結(jié)果表明:在絲織物表面濺射的納米銀薄膜具有一定結(jié)晶結(jié)構(gòu)。 本論文采用剝離試驗(yàn),研究濺射薄膜與絲織物基材間的界面結(jié)合牢度。在實(shí)驗(yàn)范圍內(nèi),隨濺射功率增加,Ag薄膜與基材間的結(jié)合牢度下降;隨濺射壓強(qiáng)增大、濺射時(shí)間的延長(zhǎng),Ag薄膜與基材間的結(jié)合牢度提高。 最后對(duì)鍍膜前后絲織物的斷裂強(qiáng)力、透氣性能及懸垂系數(shù)等進(jìn)行測(cè)試。結(jié)果表明:濺射銀膜后的絲織物的斷裂強(qiáng)力有所下降;織物的透氣性有一定程度的提高;織物的懸垂性稍有提高。
[Abstract]:In this paper, the reasons and present situation of antibacterial finishing of silk fabric, the properties and application status of nano-silver are introduced. The main research methods of antimicrobial fabrics at home and abroad are analyzed. Aiming at the shortcomings of the existing methods of preparing nano-silver antibacterial fabrics, a green and environmentally friendly magnetron sputtering technique is proposed at room temperature. Functional nano-structure silver coating was deposited on the surface of silk fabric to realize surface antibacterial functionalization of textile materials. In this paper, nano-silver coating was constructed on silk fabric by magnetron sputtering surface deposition technique, and gave it special antibacterial property. The effects of sputtering parameters (sputtering power, sputtering pressure and sputtering time) and placement time on antibacterial properties were discussed. By using oscillatory flask method, Escherichia coli and Staphylococcus aureus were selected as experimental strains to test the antibacterial properties of silk-based silver film samples with different sputtering process parameters and storage time. The results of antimicrobial test showed that sputtering time had a great effect on the antibacterial properties of silver film on silk fabric. When the sputtering time was 60 s, the sample had a good inhibitory effect on Escherichia coli and Staphylococcus aureus. The bacteriostatic rates were 99.30% and 99.89%, respectively. However, with the increase of sputtering time, the bacteriostasis rate decreased slightly. With the increase of sputtering power, the antimicrobial properties of the films decreased slightly at a certain film thickness. With the increase of sputtering pressure, the antibacterial properties of the samples improved slightly. When the nanoscale silver film was placed in air for different time, the bacteriostasis rate of the sample to Escherichia coli and Staphylococcus aureus decreased. After 28 days of storage, the bacteriostatic rate of Escherichia coli decreased significantly, and the bacteriostatic rate of Staphylococcus aureus remained above 70%. At the same time, the microstructure of silver coating such as coating thickness, coating particle structure, crystal structure and surface morphology of the coating were characterized and analyzed. The surface morphology of the film was observed by scanning electron microscope (SEM). The morphology and particle size of silver nanocrystalline films were analyzed by atomic force microscope (AFM) (AFM). X-ray diffraction (XRD) (XRD) was used to measure the crystalline structure of the films. The results of SEM and AFM analysis showed that with the increase of sputtering time, the silver nanoparticles on the fiber surface increased gradually, the thickness of the films also increased, and the film became compact. The average particle size of silver nanoparticles gradually increased with the increasing uniformity and surface area. The XRD results showed that the nano-silver films sputtered on the surface of silk fabrics had a certain crystalline structure. In this paper, the interfacial bonding fastness between sputtering film and silk fabric substrate was studied by peeling test. In the experimental range, the bonding fastness between Ag film and substrate decreases with the increase of sputtering power, and the fastness between Ag film and substrate increases with the increase of sputtering pressure and sputtering time. Finally, the breaking strength, air permeability and drape coefficient of silk fabric before and after coating were tested. The results show that the breaking strength of silk fabric after sputtering silver film is decreased, the permeability of fabric is improved to some extent, and the drape property of fabric is slightly improved.
【學(xué)位授予單位】：江南大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2010
【分類(lèi)號(hào)】：TS195.58

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