This study was performed to compare the amount of air leakage into the thoracic cavity associated with three thoracostomy tube materials (silicone, polyvinyl chloride, red rubber) in canine cadavers. Differences in intrapleural pressures (IPPs) measured before and after tube placement and before and after tube removal were calculated. The duration of air leakage around the tubes was assessed by...

Abstract The function of a membrane in the fuel cell is critical to its success. major component direct methanol (DMFC) proton exchange (PEM) which must have conductivity, thermal stability, mechanical qualities, and low permeability. In this study case, film-forming structural properties Polyvinyl chloride (PVC) impelled us employ them for developing polyelectrolyte membranes (PEMs). To functi...

Anthocyanin/polyvinyl alcohol/chitosan composite membrane was prepared by solution casting method using chitosan (CS) and polyvinyl alcohol (PVA) as matrix natural pigment anthocyanin filler. The structures of the films were characterized Uv-visible reflectance spectrum (UV-VIS), Fourier infrared spectroscopy (FT-IR) scanning electron microscopy (SEM). effects adding anthocyanins on physical pr...

We used a simple electrospinning technique to fabricate a highly potent silver-organoalkoxysilane antimicrobial composite from AgNO3-polyvinylpyrrolidone (PVP)/3-aminopropyltrimethoxysilane (APTMS)/tetraethoxysilane (TEOS) solution. Spectroscopic and microscopic analyses of the composite showed that the fibers contain an organoalkoxysilane 'skeleton,' 0.18 molecules/nm2 surface amino groups, an...

Vinyl acetate is a colorless, flammable liquid that also has a characteristic smell that can quickly become irritating. This monomer is used principally in the production of polyvinyl acetate (PVAc) and other vinyl acetate co-polymers. Polyvinyl acetate is a precursor of polyvinilyc alcohol and polyvinyl acetate resins (PVA). Vinyl acetate is also copolymerized as a minor raw material for vinyl...

A patient who worked with polyvinyl chloride developed a malignant haemangioendothelioma of a toe. This rare tumour is more commonly found in the liver where it has been reported to arise in association with exposure to the vinyl chloride monomer.