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CHEMICAL TECHNOLOGY (3) answer(s).
 
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1
ID:   071534


Analysis of cost improvement in chemical process technologies / Merrow, Edward W 1989  Book
Merrow, Edward W Book
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Publication Santa Monica, Rand Corporation, 1989.
Description xv, 53p.
Standard Number 083300963X
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Copies: C:1/I:0,R:0,Q:0
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Accession#Call#Current LocationStatusPolicyLocation
031722660.2824/MER 031722MainOn ShelfGeneral 
2
ID:   130714


Investigation on impact strength properties of Kevlar fabric using different shear thickening fluid composition / Joselin, R; Wilson, W. Jacob   Journal Article
Joselin, R Journal Article
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Publication 2014.
Summary/Abstract Great interest has aroused in developing high impact resistant fabrics based on the incorporation of a shear thickening fluid (STF) into high performance fabrics (Kevlar). This work developed a shear thickening fluid enhanced fabrics and the influence of the shear thickening fluid types against spike impact and the impact resistance performance were investigated. Silica nano-particle impregnated Kevlar fabrics exhibit significantly enhanced ballistic performance while retaining flexibility. It was found that fabrics impregnated with functionalized nanoparticles offer multiple resistance to the penetration of a sharp impactor. The improvement in protection is traced by the formation of siloxane bonds during functionalization. It exhibits significant improvement in shear stiffness and aslight increase in tensile stiffness. The impact strength properties of all samples were tested using impact testingand quasi-static testing apparatuses. Chemical compositions and microscopic structures were analyzed with Fouriertransform infrared spectroscopy and scanning electron microscopy. The current study clearly displays a significant enhancement in penetration resistance of Kevlar fabric impregnated with different combination of STF's.
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3
ID:   130743


Magnetic and microstructural studies on PVA/CO nanocomposite pr / Sachdev, Preeti; Banerjee, M; Mukherjee, G. S   Journal Article
Sachdev, Preeti Journal Article
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Publication 2014.
Summary/Abstract In this paper, we report the embedment of Cobalt (Co) nanoparticles by ion beam sputtering (IBS) in poly(vinylalcohol) (PVA) substrate to prepare nano composite film. The Co film of 5 nm was deposited on PVA by IBStechnique. Formation of Nano crystalline Co with HCP phase is revealed in GIXRD pattern of the film which alsoindicates that there is no change in the crystalline structure of PVA even after sputtering of the metallic nanoparticles.The average particle size of Co nanoparticles as evaluated using Scherer formula is found to be about 2 nm. UVVisabsorption spectrum of the film showed SPR peaks of Co metal in their nano size level embedded in the PVAmatrix system. XPS study confirms the metallic nature of Co MOKE studies show that the nanocomposite film isferromagnetic with HcÐÐ of. 42.8 Oe.
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