Now showing items 1-10 of 24
CO2 and N2 adsorption on the acid (HCl, HNO 3, H2SO4 and H3PO4) treated zeolites
CO2 and N2 adsorption on the acid treated natural and synthetic zeolites at 5◦C and 25◦C was studied. The system heterogeneity was higher for CO2 than N2 adsorption and decreased with acid treatment.
Thermal stabilisation of poly(vinyl chloride) by organotin compounds
The effect of LSN 117 (dioctyl tin bis isooctyl thioglycollate, an organotin compound) on the heat stability of plasticised PVC was investigated in this study. The organotin stabiliser had carbonyl and carboxylate groups ...
Modification of surface morphology of UHMWPE for biomedical implants
(Materials Research Society, 2007)
Ultra High Molecular Weight Polyethylene (UHMWPE) samples were implanted with metal and metal-gas hybrid ions (Ag, Ag+N, C+H, C+H+Ar, Ti+O) by using improved MEVVA Ion implantation technique [1,2]. An extraction voltage ...
Development of synergistic heat stabilizers for PVC from zinc borate-zinc phosphate
(Taylor & Francis, 2009-01)
The importance of flame-retardant and smoke-suppressed poly(vinyl chloride) (PVC) compositions is increasing gradually in the polymer industry since PVC releases smoke and toxic gases (hydrogen chloride, HCl) during heating ...
Studies in the utilization of biobased additives as thermal stabilizer for plasticized PVC
(Trans Tech Publications, 2009)
Divalent metal (barium, cadmium, calcium and zinc) soaps of rubber seed oil and their binary mixtures (BaJCd and CaJZn) and epoxidized rubber seed oil (4.5% epoxide content) and its admixtures with the single divalent metal ...
Characterization of poly(vinyl chloride) powder produced by emulsion polymerization
The effect of emulsion process formulation ingredients on the morphology, structure, and properties of polyvinyl chloride (PVC) powder has been considered in this study. PVC powder was extracted with ethanol and films were ...
Preparation and barrier properties of chitosan-layered silicate nanocomposite films
(Wiley-VCH Verlag, 2010-12)
In this study, chitosan nanocomposite films were prepared using a solvent-casting method by incorporation of an organically modified montmorillonite (Cloisite 10A). The effect of filler concentration on the water vapor ...
Investigation of HA cement preparation and properties by using central composite design
(Trans Tech Publications, 2012)
The goal of the present work was to investigate the effects of several cement preparation parameters on setting and hardening reaction mechanisms and hydroxyapatite (HA) cement properties. A central composite experimental ...
Thermal behaviour of metal soaps from biodegradable rubber seed oil
Soaps are a class of surface active compounds derived from natural oils and fats. Double decomposition reactions permit the synthesis of metallic soaps, which are long-chain carboxylates of metal ions, from alkaline ones ...
Propylene epoxidation: High-throughput screening of supported metal catalysts combinatorially prepared by rapid sol-gel method
The gas phase oxidation of propylene using molecular oxygen was studied on a variety of supported metal catalysts. The most promising PO activity was obtained for Cu supported on high surface area SiO 2 and the multimetallic ...