High Preformance Polymers
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Rohit15592
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#1
10-12-2010, 02:36 AM


can u send me a total project and implimentation
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seminar surveyer
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#2
13-12-2010, 11:45 AM

Abstract


Approaching the material from a chemistry and engineering perspective, High Performance Polymers presents the most reliable and current data available about state-of-the-art polymerization, fabrication, and application methods of high performance industrial polymers.
High performance polymers can have excellent tribological properties however; disappointment may occur if the fundamentals are not fully understood. For example, glass fibre reinforcements wear the steel counter surface. A combination of dissimilar polymers is necessary to have acceptable wear resistance and low static friction. A bad heat conduction results in higher contact temperatures with degradation of the tribological aspects. For some combinations a very smooth counter surface is required. Running in conditions must be taken into account etc.
Light weight, high strength fibers and films produced from stiff chain polymers are good candidates for use as structural materials. Over the last decade, considerable success has been achieved in synthesizing high strength fibers and films. Due to their thermal and oxidative stability aromatic heterocyclic stiff chain polymers such as ABPBO, ABPBT and ABPBI are aespecially good candidates. We first describe the finite theory of elasticity as applied in atomistic simulations of anisotropic solids and then use this description to investigate the mechanical response of these crystalline polymers as a function of applied hydrostatic pressure and uniaxial tension and compression along the chain direction in molecular mechanics simulations.

References:
tribology-abcabc/polymers.htm
wag.caltech.edu/home-pages/tahir/highperf_poly.html
mtrlportal/site/www/AsmStore/ProductDetails/?vgnextoid=1c6fb40f6104a110VgnVCM100000621e010aRCRD
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