latex allergy has become an occupational hazard among healthcare workers. atopy, intensity and duration of exposure have been recognized as predisposing factors for latex sensitization. frequency of sensitization varies among countries. so we decided to investigate the prevalence of latex sensitization and potential risk factors among healthcare workers in a general hospital. in a cross section...

By using SMA resins as a polymeric surfactant in an emulsion polymerisation process, alone or in combination with other surfactants, the stability of the dispersion under different kinds of stress (chemical, high shear or freeze/thaw) is significantly improved. The presence of SMA copolymer, adsorbed at the surface of the particles of an acrylic dispersion, enhances the stability of the latex b...

This study has been initiated to quantify the release of the Polycyclic Aromatic Hydrocarbon (PAH) species from Styrene· Butadiene Copolymer (SBR) during gasification. The identification and quantification has been detennined experimentally using Gas Chromatography/ Mass Spectroscopy (GC/ MS) coupled to a Thenno-Gravimetric Analysis (TGA) unit. SBR samples were pyrolysed in a TGA unit in a Nz a...

Background: Latex allergy is a major occupational disease with prevalence nearly 5-17% among the health care workers. Objective: To determine the prevalence of latex glove allergy and its contributing factors among operation room staff. Patients and Methods: In this study, 512 operation room staff were evaluated for latex allergy, using a complete questionnaire. Those suspected to have latex al...

The somatosensory-evoked blink response (SBR) is a newly identified blink reflex elicited by electrical stimulation of peripheral nerves. The present study was performed to investigate the physiological mechanism underlying the SBR elicited by median nerve stimulation in normal subjects. The peripheral afferents responsible for the SBR included low-threshold cutaneous fibres. In the SBR-positiv...

An investigation has been initiated to determine the effects of various atmospheres (6.9% 02iN2, 21 % 02iN2 (air), 30% 02iN2, 3% H2iN2 and pure N2) on the efficiency of gasifying or combusting rubber waste to produce synthesis gas or generate steam or power. This paper reports on the findings from a series of TGA experiments at various heating rates on styrene-butadiene copolymer (SBR), which i...

In this paper we have studied the effect of copolymerization of a non-ionic but hydrophilic monomer on the interfacial properties of the latex surface. Hydrophilic polymer colloids were prepared by the emulsifier-free emulsion copolymerization of styrene and 2-hydroxyethyl methacrylate (HEMA) with potassium persulfate as initiator. The copolymer compositions were evaluated by 1H nuclear magneti...

Butadiene-styrene copolymer (SBR) is an elastomer composed of 75% butadiene and 25% styrene widely used in the automotive industry tire production. This can be produced from two polymerization processes: emulsion or solution polymerization. paper presents mechanical behavior a polymer reinforced sand compared to pure sand. Direct shear tests were performed on specimens with addition modified bu...