Study On Industrialized Production Of Antifungal Silicon Sol And Antifungal Shoes Material

The shoes are the necessities of people’s daily life. With the rapiddevelopment of world economy, the people’s livingstandards are improvedquickly. Nowadays, people demands for shoes with better hygiene andcomfortableness. For the past few years, the researches of antimicrobial agentand antimicrobial fabric became more mature, those were tended to be used inthe shoe material by a few scholars domestic and international, therefore, moresuch antimicrobial agents for shoes and antibiotic shoes products were comingon to the market.Compound antibacterial agents combine the high efficiency, perdurability oforganic antimicrobial agent and the safety, thermo-tolerance of inorganicantimicrobial agent. Because of these characteristics, the research of compoundantibacterial agents caused the wide attention of people more and more. afirst-step research work aimed at the study of the preparation and theperformances of the compound antibacterial agents was run by our researchgroup. The hybrid antimicrobial sol and silver zinc compound antimicrobial wereprepared by sol-gel technology. Then the antimicrobial agents were finished tothe shoe lining, insole,and the materials were tested by China Leather and Footwear IndustryInstitute according to FZ/T73023-2006, the antimicrobial test results showed thatthe materials reached the grade of AAA. Given that, this paper aimed at solvingthese problems that might meet at industrial production of compoundantimicrobial sol and compound antimicrobial shoe material to ensure aproblem-free production and makes the antifungal deodorant shoe possible. Itcould not only raise the shoe content of science and technology, but also increasethe added value of the shoes and extended the development space of shoeindustry.The padding method was used in textile modification, therefore it isimportant that the antifungal sol could own a good stability because that the subsequent processes would not be carried out smoothly. This article based onthe preliminary work, the effects of different factors on the stability of antifungalsol were studied, such as the content of GPTMS, ageing temperature. Theinfluence of ageing time to grain size was studied, too. The chemical constitutionof the antifungal sol was analyzed with the method as Fourier Transform Infraredspectroscopy （FT-IR）. The thermo-tolerance of the antifungal sol was tested bythe thermo gravimetric analysis （TGA） and Differential Scanning Caborimetry（DSC）. The antifungal shoes material suitable for industrialization was preparedby padding method finishing process, and the influence of different paddingprocess parameters on antifungal effect was studied to optimize the paddingprocess parameters. The performance of the antifungal shoes material wasverified by antifungal properties, antifungal sustainability, air permeabilityproperty, tearing strength and elongation at break and whiteness.The result of the study shows:（1） The stability of sol was better when the add-ons of TEOS was more. Atendency variation of the gel time had not been showed with the decreasing ofGPTMS content. Less change in viscosity with lower ageing temperature, whenthe ageing temperature was lower, the sol was more stable. The average diameterof sol changed with the increase of aging time. The sol was relatively stablebefore the viscosity of sol sharply increases. The optimal process condition toprepare antifungal sol was: the mole ratio of GPTMS/TEOS/H₂O/EtOH was（1/6）:1:30:10, when the content of TEOS was0.1mol, the content of TH was0.1g. The pH value of the TEOS mixture was regulated to2using HNO3. Thenthe TEOS mixture was under vigorous stirring at the speed of1200r/min for5hat30℃.（2） FT-IR test shows that there was little influence to the structure of THthrough the sol-gel process. TGA, DSC tests show that the antifungal sol couldstand190℃h igh temperature for ashort time. The antifungal sol could meet therequirement of the finishing process.（3） The optimum conditions of antifungal finishing process were:double-dip double–nip, pre-drying at130℃for2.5min, curing at190℃for40s.The shoes materials finished had a strong resistance on the Candida albicans andTricophyton rubrum, the inhibition rate to Candida albicans was98.18%before laundering, the inhibition rate to Tricophyton rubrum was92.35%. The inhibitionrate to Candida albicans was89.31%after50times launderings and theinhibition rate to Tricophyton rubrum was89.41%after50times launderings.The inhibition rate to Candida albicans was92.78%after dipping in artificialperspiration for24h and the inhibition rate to Tricophyton rubrum was92.35%after dipping in artificial perspiration for24h.