نتایج جستجو برای: polyvinyl chloride pvc
تعداد نتایج: 94770 فیلتر نتایج به سال:
Polyvinyl chloride (PVC) is a thermoplastic polymer widely used in industry, reflected in the number of tons consumed annually in the world. We present a 48 year old male patient with no history of atopy, plumber by profession for 30 years, developed progressive dyspnea and dry cough in the last 3 years, triggered in the work environment and persist outside it, related it to manipulate an adhes...
The current research uses sustainable methods to preserve the environment, such as exploiting municipal or industrial waste that may harm environment. wreckage of polyvinyl chloride (PVC) pipes and asphaltene are used additives cement improve its mechanical properties, while stabilizing radioactive resulting from peaceful nuclear materials, enhancing radiation shielding efficiency. New composit...
Stress relaxation properties have a significant impact on the performance of polyvinyl chloride (PVC) geomembranes (GMBs) at peripheral joints membrane faced rockfill dam (MFRD). This paper presents fractional order viscoelastic model (FOVM) to measure stress as function time. Model parameters were obtained by best fit results from wide-width strip tensile tests conducted three rates and initia...
Rigid cross-linked interpenetrated network polyvinyl chloride (PVC) foams are widely used as core materials in the composite industry. Nevertheless, no recycling methods exist today for these that currently landfilled at end of life (EoL). In this work, various amounts EoL PVC form chips were mixed with ethylene–propylene diene monomer (EPDM) rubber and carbon black (CB) 60°C 15 min. The obtain...
This work proposed an innovative integrated process to produce clean fuel. Waste polyvinyl chloride (PVC) was co-pyrolysis with biomass as a hydrogenation agent enhance the conversion N of NH3 in gaseous product by microwave heating. demonstrated conditions suitable for PVC and (straw rice husk, respectively) based on denitrification dechlorination effects including indexes Cl removal ratio HCl...
THE EFFECT OF E-GLASS FIBERS AND PHLOGOPITE MICA ON THE MECHANICAL PROPERTIES AND DIMENSIONAL STABILITY OF RIGID PVC FOAMS by Murtatha M. Jamel The University of Wisconsin-Milwaukee, 2015 Under the Supervision of Professor Nidal Abu-Zahra Short E-Glass Fibers (GF) and Phlogopite Mica (M) were used separately and simultaneously to enhance the dimensional stability and mechanical properties of ex...
Polymer composites of polyvinyl chloride, PVC, were loaded up with micro and nano PbO/CuO particles. The added percentage each by mass was 10 wt.%, 20 30 40 plus wt.% mixed composite (20 CuO + PbO). linear attenuation coefficients the investigated measured as a function gamma-ray energies going from 59.53 keV to 1408.01 utilizing standard radioactive point sources. To confirm validity these res...
A new biosorbent was developed by coating chitosan, a naturally and abundantly available biopolymer, on to polyvinyl chloride (PVC) beads. The biosorbent was characterized by FTIR spectra, porosity and surface area analyses. Equilibrium and column flow adsorption characteristics of copper(II) and nickel(II) ions on the biosorbent were studied. The effect of pH, agitation time, concentration of ...
Polycyclic aromatic hydrocarbons (PAHs) on virgin polystyrene (PS) and PS marine debris led us to examine PS as a source and sink for PAHs in the marine environment. At two locations in San Diego Bay, we measured sorption of PAHs to PS pellets, sampling at 0, 1, 3, 6, 9, and 12 months. We detected 25 PAHs using a new analytical method with comprehensive two-dimensional gas chromatography couple...
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