Temat: permeation - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Barrierity of Hydrogenated Butadiene-Acrylonitrile Rubber and Butyl Rubber After Exposure to Organic Solvents
Autorzy:: Krzemińska, S.
Rzymski, W. M.
Powiązania:: https://bibliotekanauki.pl/articles/91169.pdf
Data publikacji:: 2011
Wydawca:: Centralny Instytut Ochrony Pracy
Tematy:: permeation of solvents
barrier material
elastomers
exposure to organic solvents
Opis:: Resistance of antichemical clothing primarily depends on the type of material it is made from, in particular on the type of polymer used for coating the fabric carrier. This paper reports on systematic investigations on the influence of the cross-linking density of an elastomer and the composition of a cross-linked elastomer on its resistance to permeation of selected organic solvents. Tests of barrier material samples made from nonpolar butyl rubber (IIR) and polar hydrogenated butadiene-acrylonitrile rubber (HNBR) showed that (a) in rubber–solvent systems with medium thermodynamic affinity, cross-linking density influenced resistance to permeation and (b) the polarity of the system had a significant influence on barrierity.
Źródło:: International Journal of Occupational Safety and Ergonomics; 2011, 17, 1; 41-47
1080-3548
Pojawia się w:: International Journal of Occupational Safety and Ergonomics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Method of Testing the Penetration of Acid Solutions Through Safety Gloves
Autorzy:: Liwkowicz, J.
Kowalska, J.
Powiązania:: https://bibliotekanauki.pl/articles/89778.pdf
Data publikacji:: 2000
Wydawca:: Centralny Instytut Ochrony Pracy
Tematy:: chemical gloves
safety gloves
acid permeation
acid resistance
rękawice
rękawice ochronne
kwasy
Opis:: Because they cause burns that are difficult to heal, acids are dangerous, and steps should be taken to ensure that the human skin does not come into contact with them. For this purpose safety gloves are generally used by workers who have to handle acids. Such gloves need to be tested to ensure that they are acid resistant. Standard EN 374 (European Committee for Standardization [CEN], 1993c) specifies a method of testing the permeation of liquid chemicals, on a molecular level, through glove material, but it may be difficult to ensure the fitness of the joints of a 4wo-compartment cell, when gloves are lined with jersey. To deal with this a simple pH-meter method to test the permeation of acid and alkali solutions through safety gloves has been developed. The permeation of H2S 0 4, HCI, HN03, and CH3COOH through gloves made from neoprene, nitrile, and PVC was tested. This method seems to be simple and economical.
Źródło:: International Journal of Occupational Safety and Ergonomics; 2000, 6, 1; 81-88
1080-3548
Pojawia się w:: International Journal of Occupational Safety and Ergonomics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Resistance of Medical Gloves to Permeation by Methyl Methacrylate (MMA), Ethylene Glocol Dimethacrylate (EGDMA), and 1,4-Butanediol Dimethacrylate (1,4-BDMA)
Autorzy:: Lonnroth, E. C.
Ruyter, I. E.
Powiązania:: https://bibliotekanauki.pl/articles/90479.pdf
Data publikacji:: 2003
Wydawca:: Centralny Instytut Ochrony Pracy
Tematy:: permeation rate
degradation
breakthrough time
bone cement
adhesives
prosthetic materials
substancje niebezpieczne
rękawice ochronne
ochrona skóry
Opis:: Gloves afford hand protection by minimizing skin contact. The effectiveness of medical gloves to protect against permeation of the monomers, methyl methacrylate (MMA), ethylene glycol dimethacrylate (EGDMA), and 1,4-butanediol dimethacrylate (1,4-BDMA), was assessed focusing on permeation rates and degradation of glove materials caused by monomer contact. Fifteen different brands of gloves were tested using a European Standard procedure. Surface images of glove materials before and after exposure to the monomer mixture were obtained using a scanning electron microscope. The standard is not applicable as the only method for estimating the safety of gloves, but it is useful as guideline together with the cumulative permeation of acrylic monomers. Monomer contact on the outside resulted in substantial swelling of most glove materials, and structure changes of the inside surface.
Źródło:: International Journal of Occupational Safety and Ergonomics; 2003, 9, 3; 289-299
1080-3548
Pojawia się w:: International Journal of Occupational Safety and Ergonomics
Dostawca treści:: Biblioteka Nauki

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