Avaliação das propriedades físico-químicas das luvas de policloreto de vinila (PVC) sob regime de vigilância sanitária.

Abstract

During the mid-1980´s, due to the emergence of AIDS, the Centers for Disease Control and Prevention (CDC) introduction the "Universal Precautions" and gloves began to be widely used in health services. The use of gloves was popularize in medical and surgical procedures, and reports of allergic reactions induced by latex began to emerge. Since then, companies have developed synthetic substitutes for latex, such as PVC. In 2011, was published the Resolution RDC nº 55 which established the minimum requirements of identity and quality for surgical and exam gloves made of natural rubber, synthetic rubber, a mixture of natural and synthetic rubbers and polyvinyl chloride. Thus, this study proposes the characterization and evaluation of exam vinvyl gloves, in order to check if the gloves meet the requirements of the standard ABNT NBR ISO 11193-2. Three different brands of regularized exam gloves at ANVISA were evaluated, being characterized by XRD, FTIR, SEM, EDS, Wetting Test, as well as evaluated the size, impermeability, and tensile properties according to the standard methodology. It was observed similar quantities of chemical groups in all samples analyzed by FTIR. The SEM morphology showed a smooth flat surface of the gloves D and E, while the S glove presented textured and uniform surface. It was shown that samples of vinyl gloves tested did not meet the standard´s mechanical requirements, especially the breaking elongation´s requirement of 350%. A conformity assessment with a larger sample of vinyl gloves it is suggested, as well as a further review of the Resolution RDC 55/2011 to assess the need for inclusion of vinyl gloves in the scope of mandatory certification.