SEDL / STP / STP1414-EB / STP10717S

Dynamic Surface Tension of Selected Nonionic Agricultural Surfactants at Surface Ages Relevant to Component Processes in Spray Application

Cooper, JA
Research Associate, Ohio State University/OARDC, Wooster,OH

Fox, RD
Agricultural Engineer, USDA-Agricultural Research Service, ATRU, Wooster,OH

Dexter, RD
Research Fellow, BASF Corporation, Princeton,NJ

Bukovac, MJ
Professor Emeritus, Michigan State University, East Lansing,MI

Pages: 11    Published: Jan 2001

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Source: STP1414-EB

Abstract

Dynamic surface tension data for selected nonionic surfactants, pesticides and other miscellaneous liquids are presented. Surface tension was measured using the oscillating jet technique at surface ages ranging from 0.5 to 7 ms. These early measurements are particularly important since new surfaces are being rapidly created, and they represent the time frame of spray droplet formation and impaction processes.

Keywords:
Dynamic surface tension, surface age, agricultural surfactants, pesticides, oscillating jet technique, spray application, droplet formation, droplet impaction

Paper ID: STP10717S
Committee/Subcommittee: E35.22
DOI: 10.1520/STP10717S
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