توليد نانو الياف ضد ميكروب نايلون 66 با استفاده از رنگينه ضد ميكروب راكتيو

چكيده انگليسي :

Production of Nylon 66 Antimicrobial Nanofiber by Using Antimicrobial Reactive Dye Elham Mirtalebi E mirtalebi@tx iut ac ir Date of Submission 2011 Department of Textile Engineering Isfahan University of Technology Isfahan 84156 83111 IranDegree M Sc Language Farsi Dr Alireza Moradi Moradi a@cc iut ac irAbstractIn this study production of stained antibacterial nylon 66 nanofiber was investigated by using antibacterialdye Our experiments in this study can be summarized in two steps in which the first step includes two parts The first and the second steps involved Trying to synthesize antibacterial reactive dye from bindingantibacterial material Proflavin shown with the letter P to reactive basis of dye shown with the letter D to produce nylon 66 nanofibers that contains stained antibacterial materials and then investigation of theirproperties respectively In the first step we tried to bind the dye reactive blue 4 to Proflavin and to bind theProflavin to cyanuric chloride shown with the letter C In the first part Reactive Blue 4 was purified bysalting out crystallization and solvent non solvent mixtures All samples undergone FTIR spectroscopy andThin Layer Chromatography TLC after purification Then all attempts focused on connecting Proflavin toReactive blue 4 Synthesis D P by 12 series of experiments Again after these experiments the resultingstained material from the reaction D P dye undergone spectroscopy FTIR UV VIS and TLC In the secondpart Proflavin to cyanuric chloride binding synthesis of P C performed Then spectroscopy FTIR UV VIS and TLC done for the obtaining stained material P C In second step electrospinning nylon 66 solutioncontaining P C and electrospinning nylon 66 solution containing P D were prepared and electrospun Structure morphology of nanofibers and effective factors on them investigated Antibacterial properties ofstained nanofibers and aqueous solutions of dye was investigated in antimicrobial activity tests Washingstability and properties of stained nanofibers in the color space CIELAB 1976 were studied The results ofUV VIS Spectrum and TLC of D P exhibited that along all of the experiments no covalent bond carried outbetween Reactive blue 4 and Proflavin and it seems that these two material were mixed physically togetherrather than chemically While the results of UV VIS spectroscopy and TLC for the P C proved that thebinding of cyanuric chloride and Proflavin was performed succsessfully The optimum concentration fornylon 66 without dye nylon 66 containing P C dye in physical mixture and nylon 66 containing P D dye inphysical mixture was 15 wt v While the optimum electrospinning concentration for nylon 66 containingP C after covalent bond formation was obtained in 17 wt v The average diameter of nanofibers onSEM images for nylon nanofibers without dye and nanofibers containing P C dye after covalent bondformation in alkali soulotion is 102 94 nm and 78 4185 nm respectively Reduction in nanofiber diametercan be due to binding of dye to fibers and reduction of interaction between polymer chains which finallycauses in reduction of viscosity of electrospinning solution Comparision between solid UV VIS spectrum ofstained nanofibers and colorless nanofibers showed electron transfer chenging Washing stability study usingwastewater dye spectophotometry measurement was caried out according to standard Washing condition ofISO 105 C06 D1S in 70 C and standard of ISO 105 C06 E1S in 95 C Comparison between nanofiberscontaining 2 Proflavian and 2 P C showed that nanofibers containing 2 Proflavian has low washingstability as washing them in three stages in 95 C resulted in total Proflavin exit from nylon This shows thatProflavin is physically located between polymer chains of nylon While the total percentage of P C dyeoutput in five washing stages in 70 C and 95 C was 24 97 and 43 25 respectively Two methods fordetermination of antibacterial activity was used In the first method the amount of antibacterial activity o

مير طالبي، الهام

توليد نانو الياف ضد ميكروب نايلون 66 با استفاده از رنگينه ضد ميكروب راكتيو

الكتروريسي , پروفلاوين , سيانوريك كلرايد , ضد باكتري