Title :
Study of the contact electrification of polymers using contact and separation current
Author :
Charlson, E.M. ; Charlson, E.J. ; Burkett, S. ; Yasuda, H.K.
Author_Institution :
Missouri Univ., Columbia, MO, USA
fDate :
12/1/1992 12:00:00 AM
Abstract :
An instrument was developed that measures the current resulting from surface charge rearrangement during individual contact and separation events involving an insulating sample and a metal probe. It is shown that the values of peak current measured can be used to determine the position of the insulator in a triboelectric series. A modified field mill instrument was used to verify the accuracy of the triboelectric series determined using the contact-separation technique on a set of polymer films. Results agree with published triboelectric series in all cases for which there was agreement among the published series. All measurements were made in a controlled environment on samples which had been stored in a nitrogen atmosphere. The instrument offers the advantages of short measurement time and the ability to make nondestructive measurements on samples of arbitrary thickness including films which are <10 nm thick. Measurements can be made on either conducting or insulating samples
Keywords :
dielectric properties of solids; electric current measurement; nondestructive testing; organic insulating materials; polymer films; polymers; static electrification; triboelectricity; 10 nm; N2 atmosphere storage; contact electrification of polymers; contact-separation technique; contact/separation current; controlled environment; current measurement; field mill instrument; field mill modification; insulating sample; metal probe; nondestructive measurements; separation current; set of polymer films; short measurement time; surface charge rearrangement; triboelectric series; Atmospheric measurements; Charge measurement; Current measurement; Instruments; Insulation; Polymers; Position measurement; Probes; Thickness measurement; Time measurement;
Journal_Title :
Electrical Insulation, IEEE Transactions on