Glove Permeation by Semiconductor Processing Mixtures Containing Glycol-Ether Derivatives

Zellers, Edward T.; Ke, Huiqiong; Smigiel, David; Sulewski, Robert; Patrash, Samuel J.; Han, Mingwei; Zhang, Guo Zheng

doi:10.1202/0002-8894(1992)053<0105:gpbspm>2.0.co;2

Cited by 2 publications

(3 citation statements)

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“…For this reason, the results of this study are also likely to differ from what would be found with the ASTM closed-cell system. Other investigators have reported that components of a solvent mixture can induce swelling of the polymer membrane, thus enhancing permeation of some or all of the mixture components (Georgoulis et al 2005;Chao et al 2006;Zellers et al 1992). Those observations were derived from studies using the ASTM standard method in which liquid solvent mixtures were held in contact with the outer surface of the polymer for periods of up to several hours.…”

Section: Resultsmentioning

confidence: 97%

“…This study did not assess the effects of temperature (Zellers et al 1992), exposure duration, or user practices, all of which can affect the performance of personal protective equipment under use conditions. This experiment presented a relatively severe exposure setting of direct contact with solvents in the clear-coat paint formulation, and the results from this study are only applicable to this particular clearcoat formulation.…”

Section: Limitations Of the Studymentioning

confidence: 99%

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Transport of a Solvent Mixture Across Two Glove Materials When Applied in a Paint Matrix

Tran

Ceballos

Dills

et al. 2012

Arch Environ Contam Toxicol

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The transport of mixed paint solvents through natural rubber latex (4 mil) and nitrile rubber (5 mil) gloves was evaluated after spray application of the paint formulation directly on the glove surface. Glove materials and thicknesses were those selected by the majority of spray painters in the local automobile repair industry. A flat panel containing glove specimens mounted in multiple permeation cells permitted evaporation of solvents from the applied paint and incorporated a solid sorbent receiving medium for measuring glove membrane transport. The panel was sprayed in a paint booth to simulate use conditions. Charcoal cloth under the glove adsorbed transported solvents, which were quantified by gas chromatography. For each solvent component, results were expressed as mass transported through the glove relative to the mass applied, per unit area, during 30 min after spray application. The paint formulation contained ketones, acetates, and aromatics. Natural rubber latex allowed 6-10 times the transport of solvents relative to nitrile rubber for all eight solvent components: methyl ethyl ketone, toluene, styrene, ethyl benzene, xylene isomers, and 2-heptanone. m-Xylene showed the largest difference in transport between the two glove materials. This solvent also had the highest transport for each material. The results indicate that nitrile rubber gloves offer somewhat greater chemical resistance to all eight solvents studied compared with natural rubber latex gloves, regardless of the chemical properties of the individual solvent components. However, it must be emphasized that neither of the glove materials, in the thicknesses used in this study, provide adequate protection when exposed by direct spray painting. Simulation of realistic spray conditions may offer a source of useful information on the performance of chemical protective gloves because it accounts for solvent evaporation and the effect of paint polymerization after application on glove transport.

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Section: Resultsmentioning

confidence: 97%

Section: Limitations Of the Studymentioning

confidence: 99%

Transport of a Solvent Mixture Across Two Glove Materials When Applied in a Paint Matrix

Tran

Ceballos

Dills

et al. 2012

Arch Environ Contam Toxicol

View full text Add to dashboard Cite

show abstract

“…Although there is considerable scientific literature on the permeation of chemical protective clothing (CPC) and/or gloves by solvents, very little research has dealt with the behavior of solvent mixtures. A thorough literature search resulted in only eight studies that have examined the effects of multicomponent mixtures 3–10. All of them have shown that extrapolation from the pure solvent permeabilities does not predict accurately the behavior of the mixture.…”

Section: Introductionmentioning

confidence: 99%

Swelling of polymeric glove materials during permeation by solvent mixtures

Georgoulis

Morgan

Andrianopoulos

et al. 2005

J of Applied Polymer Sci

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Extrapolation from permeation data for pure solvents does not predict accurately their behavior in mixtures. In this study we examined whether the permeation of natural rubber, nitrile, and PVA glove materials by solvent mixtures is proportional to material swelling. Gloves were exposed to solvent mixtures and their permeation was monitored: breakthrough times, permeation rates, and degree of swelling were determined. Toluene exhibits higher permeation than MEK through natural rubber. Adding MEK to toluene decreased the permeation of toluene and increased that of MEK, proportionally to mixture composition and the degree of swelling. The opposite was observed for nitrile: toluene, now the "low permeation" solvent (LPS), retarded MEK permeation and vice versa. The effect was proportional to mixture composition but not consistently proportional to the degree of swelling. Samples were also exposed to the LPS for different time periods prior to a permeation run using the "high permeation" solvent (HPS). The decrease in breakthrough time of the HPS was proportional to the degree of swelling caused by the LPS. Material swelling appears to control MEK and toluene permeation through natural rubber. For nitrile, additional factors are apparently at work. No permeation was detected through PVA and material swelling was negligible.

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Glove Permeation by Semiconductor Processing Mixtures Containing Glycol-Ether Derivatives

Cited by 2 publications

References 0 publications

Transport of a Solvent Mixture Across Two Glove Materials When Applied in a Paint Matrix

Transport of a Solvent Mixture Across Two Glove Materials When Applied in a Paint Matrix

Swelling of polymeric glove materials during permeation by solvent mixtures

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