Effe ABSTRAC Nano-cha accelerate Nylon fibe exposed nanoinden on grada decreases Reduction surface. T four week Young’s m (FTIR) ar mechanic 1. INTRO Nylon is undergoe degradatio oxidation group by the -car have done shown to denoted ‘β of nylon 6 non oxyg results ob to those o 65oC in n embrittlme changes proven by character Mead JW aging tren of 50 % R on these exposed t al. [5] con resulting f ect of Acc Sc Nandu *Corresp CT aracterization ed ultra viole ers were expo fibers were ntation from s tion of Youn s the Young n of Young’s To investigate ks. Initial exp modulus. Wid e used to co cal properties. ODUCTION one of the c s significant d on mechanis of nylon 66 p a free radica rbon radical re e a detailed s consist of ex ’ was also o 6 films due to gen environm btained on sa obtained by a itrogen excee ent had occu by cross link y the authors izing photo de W et. al. [4] co nds in these c RH at room te data the ene to smog for s nducted 1-D from UV exp celerated cale Mech ula Wanase 1M 2Depa University o ponding au studies using et (UV) and t osed to UV ra e molded in surface to the ng’s modulus ’s modulus f modulus at s e thermal deg perimentation e angle x-ray orrelate the fi . commonly us deterioration ms on Nylon proceeds thro l which has b eadily react w study of the c xtended mole observed. Y. W both oxidativ ment the rate mples expos accelerated ag eding 400 ho urred during ing or main c ’ that the spe egradation in onducted acce conditions. T emperature fo rgy of activat ix months los and 2-D NM posure of Nyl Ultra Vio hanical P ekara1, Vija Materials & artment of M of Massach thor, vchali g atomic force hermal degra adiation for s n an epoxy e center of th s across fibe from center t surface was g gradation effe n indicates th y spectroscop iber chemica sed polymers of mechanica began as ea ough the rem been activate with atmosphe crystal structu ecular chains W. Mai et. al. ve and non-o of degradat ed to natural ging. They co urs since upo exposure. It chain scissio ecific energy nylon. elerated agin Tensile streng or six months tion for the ny st 63 % of its MR technique on films and olet and T Properties aya Chalive Textiles De Mechanical husetts Dar ivendra@u e microscopy adation on m ix different ho y plug for he fiber was u er cross-secti to surface of greater than t ect on Nylon f hat the therm py (WAXS) an l and micro-s s in commerc al properties d arly as 1940 b moval of the h d by photo e eric oxygen to ure of drawn arranged in t [3] investigat xidative degr tion is enhan weathering c ould not retrie on cutting the is also poss ning by photo absorption in g of nylon 66 gths of nylon y s degraded fro ylon degrada tensile streng es on nylon 6 heat aging o Thermal E s of Nylon ndra2* and epartment l Engineerin rtmouth, MA massd.edu y (AFM) was c mechanical pro ours using Qnanoindentat used to inves ion. It was i f the fibers he center imp fibers, the fib mal exposure nd Fourier Tra structural cha cial applicatio due to photoby Fuller et. a hydrogen on nergy absorp o form a hydro Nylon 66. Th triclinic unit c ted the degra radation. Thei nced with ris conditions we eve the samp e sheet it sha ible for nylon on energy ab n a tensile te 6 in humid air yarn which w om 40 % at 1 tion is estima gth compared 66 to determ of Nylon pell Exposure n Fibers Paul Calve ng A 02747 u, 508-910-6 conducted to operties of N -UV Panel W tion using A stigate the eff identified tha up to 144 h plying more d bers were exp e causes gra ansform Infra anges to the ons. It has b -oxidation. Init al. [1] who des the -carbon ption. In the p operoxide. Bu he major phas cells. A secon dation of mec ir experiment sing temperat ere found to b ples of nylon attered indicat n 6 to underg bsorption. It w st is an effec r, ozone and were aged in h 110oC to 85 % ated to be is d to 7% loss in mine the degr ets. The dom e on Nano ert1 6572 study the eff Nylon textile f eatherometer AFM. Progre fect of degrad at UV degrad ours of expo deterioration posed to 175o adual reducti Red Spectros variation of been known t tial investigat scribed that p n to the amid propagation p unn and Garn se denoted ‘α nd triclinic uni chanical prop ts showed tha ture. Experim be difficult to sheets expos ting that signi go micro-stru was proposed ctive paramet smog to asc humid environ % at 150oC. B 18 kcal/mol. n ozone. Krej radation struc minant degrad o fect of fibers. r. The essive dation dation osure. at the C for on of scopy nanothat it tion of photode NH phase, ner [2] ’ was it cell, perties at in a mental relate sed at ificant uctural d and ter for certain nment Based Nylon jsa et. ctures dation Proceedings of the SEM Annual Conference June 7-10, 2010 Indianapolis, Indiana USA ©2010 Society for Experimental Mechanics Inc. 229 T. Proulx (ed.), MEMS and Nanotechnology, Volume 2, Conference Proceedings of the Society for Experimental Mechanics Series 2, DOI 10.1007/978-1-4419-8825-6_33, © The Society for Experimental Mechanics, Inc. 2011
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