نتایج جستجو برای: suspension pvc
تعداد نتایج: 38742 فیلتر نتایج به سال:
Poly(vinyl chloride) resins are produced by four basic processes: suspension, emulsion, bulk and solution polymerization. PVC suspensions resins are usually relatively dust-free and granular with varying degrees of particle porosity. PVC emulsion resins are small particle powders containing very little free monomer. Bulk PVC resins are similar to suspension PVC resins, though the particles tend...
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The ZnO sol well-crystallized was prepared by the sol-gel method. The ZnO films were coated on medical-grade PVC surface by the improved organic-inorganic interfacial adhesion method. The physical and photocatalytic properties of the samples were characterized by XRD, SEM, DRS spectra and measured by the photodegradation reaction of Rhodamine B (RhB) and anti-bacteria for Escherichia coli (E. c...
BACKGROUND Celecoxib is a selective cyclo-oxygenase 2 inhibitor that relieves pain without affecting platelet function, causing gastrointestinal toxic effects, or increasing the risk of bleeding. OBJECTIVES To develop a suspension formulation for oral celecoxib and to determine its physical and chemical stability when packaged in amber polyvinyl chloride (PVC) bottles and stored with refriger...
Recently, polyvinyl chloride (PVC) has emerged as one of the most widely used polymers on planet due to its versatile mechanical properties and chemical resistance. Suspension polymerization is employed method for production, owing ability control polymer characteristics cost-effectiveness. However, issues such water energy consumption management in process have sparked interest researching per...
This work reports and discusses the influence of four phosphonium-based ionic liquids (PhILs), namely trihexyl(tetradecyl) phosphonium dicyanamide, [P(6,6,6,14)][dca]; trihexyl(tetradecyl) phosphonium bis(trifluoromethylsulfonyl)imide, [P(6,6,6,14)][Tf(2)N]; tetrabutyl phosphonium bromide, [P(4,4,4,4)][Br]; and tetrabutyl phosphonium chloride, [P(4,4,4,4)][Cl], on some of the chemical, physical...
Poly(vinyl chloride) (PVC) resins constitute the third most important plastic materials available commercially, in terms of worldwide volume production, and can be manufactured through several polymerization mechanisms, including free radical, ionic redox processes. Approximately 80% commercial PVC production is performed suspension processes batch mode, due to intrinsic problems continuous pro...
The bactericidal effect of 405 nm light was investigated on taxonomically diverse bacterial pathogens from the genera Salmonella, Shigella, Escherichia, Listeria, and Mycobacterium. High-intensity 405 nm light, generated from an array of 405-nm light-emitting diodes (LEDs), was used to inactivate bacteria in liquid suspension and on exposed surfaces. L. monocytogenes was most readily inactivate...
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