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Research On The Properties Of Silver-plated Carbon Nano-tube And Its Alkene Composite Materials

Posted on:2014-10-02Degree:MasterType:Thesis
Country:ChinaCandidate:W CaoFull Text:PDF
GTID:2251330422975084Subject:Textile Engineering
Abstract/Summary:PDF Full Text Request
In our daily life, the electrostatic phenomenon is very common, it comes fromthe contacts. For example, it will produce lots of static when the chemical fiber fabricscontact with our bodies in the dry environment. The static can create a sense ofuneasy to human body. In addition, it must get rid of the interference of static in somespecial fields, such as the electron, dust prevention, military and so on. So, it is verynecessary to let the fabrics have the property of anti-static. Following the changingrequirements of the people about the textiles, some textile materials which havespecial properties come into being. Textiles with the properties such as anti-static,antibiosis, anti-radiation and so on have been developed. These products can solvemany problems existing in our lives, and provide a high quality life to us. Nowadays,majority of textiles in market only have the property of anti-static or antibiosis, it willbe more popular and valuable if there is a product which has both of the properties.In this paper, the method of chemical plating was used for plating the silver onthe carbon nano-tube. The chemical plating principle and technology, and the basicproperties of carbon nano-tube were investigated. Furthermore, the factors thatinfluence the quantity of silver on the carbon nano-tube were analyzed. The resultindicates that within a certain range, the weighting rate of silver will increase whenthe concentration of silver nitrate, ammonia water, formaldehyde increase. However,the weighting rate of silver will reduce when the concentration exceeds the certainrange. The influence of temperature and value of pH are similar to the concentrationof silver nitrate, ammonia water, formaldehyde. By using scanning electronmicroscope and X-ray diffraction, the difference between the carbon nano-tube andsilver-plated carbon nano-tube was observed, which can confirm the existence of Ag.In addition, the electric and thermal properties of silver-plated carbon nano-tube thathave different weighting rate of silver have been studied. The result indicates thatsilver-plated carbon nano-tube’s electric property is stronger, and the thermal propertyis weaker because some of the silver changed into silver oxide on the surface ofcarbon nano-tube. By adding carbon nano-tube or silver-plated carbon nano-tube into the substrateof polyethylene for making composite materials, the polyethylene can have someother new properties. The preparation method and technology were investigated inthis work. The results show that the electric and anti-radiation properties ofsilver-plated carbon nano-tube composite material were better than those of thecarbon nano-tube composite material. The electricity threshold’s range of thesilver-plated carbon nano-tube composite material was also found out, which providesthe theoretic guidance for the development of the organic composite antimicrobialconductive fiber.By using silver-plated carbon nano-tube for developing and producing theorganic composite antimicrobial conductive fiber, the antimicrobial conductivemasterbatch was prepared and the organic composite antimicrobial conductive fiberwith polypropylene was produced by the composite spinning method. The technologyparameters and preparation technology were confirmed and the specification,structure, conductive property, antimicrobial property and mechanical property of theorganic composite antimicrobial conductive fiber were tested in the paper. The resultshows that the organic composite antimicrobial conductive fiber has excellentconductive ability and can meet the requirement of anti-static. It has efficient andlasting antimicrobial ability and can protect our bodies. Furthermore, the organiccomposite antimicrobial conductive fiber can achieve the basic requirements of fiberproperty.The content of this paper has the significance for carbon nano-tube’s practicalapplication. It can provide the basic theory for high polymer’s modification, and thedevelopment and production of the organic composite antimicrobial conductive fiber.
Keywords/Search Tags:Carbon nano-tube, Silver-plated carbon nano-tube, Compositematerial, Organic composite antimicrobial conductive fiber, Volume specific resistance, Anti-radiation property, Antimicrobialproperty
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