Pesticide Barrier Performance of Selected Nonwoven Fabrics in Laboratory Capillary and Pressure Penetration Testing

Author:

Crouse John L.1,Dejonge Jacqueline O.1,Calogero Frank1

Affiliation:

1. The University of Tennessee, Textile Materials Research Center, Knoxville, Tennessee 37996, U.S.A.

Abstract

Laboratory spray tests have been used to evaluate the protection offered by two distinct nonwoven fabrics with and without fluorocarbon finishes. The fabrics were contaminated with dicofol field spray mix at coverage levels ranging from 50 to 200 mg/m 2, values typical of actual field exposures of pesticide spray applicators. Half the samples were subjected to an external compression pressure of 1 psi immediately after contamination (pressure penetration test). The remaining fabrics were allowed to dry without manipulation (capillary penetration test). Increasing contamination level and application of an external mechanical pressure greatly increased the pene tration of dicofol through all test fabrics. All four test fabrics provided protection against capillary penetration, usually at levels greater than 99%. In pressure penetration testing, the performance of the two unfinished fabrics was significantly better than that of the finished fabrics.

Publisher

SAGE Publications

Subject

Polymers and Plastics,Chemical Engineering (miscellaneous)

Cited by 6 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Determination of the efficiency for pesticide exposure reduction with protective clothing;Worker Exposure to Agrochemicals;2000-09-26

2. Conceptual model for assessment of dermal exposure;Occupational and Environmental Medicine;1999-11-01

3. Pesticide Protective Clothing;Reviews of Environmental Contamination and Toxicology;1992

4. Tensile Viscoelastic Properties of Spunbonded Nonwoven Polypropylene Backing;Textile Research Journal;1991-07

5. Pesticide transmission in fabrics: Effect of particulate soil;Bulletin of Environmental Contamination and Toxicology;1991-06

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