Some Fundamental Questions Concerning the Static Electrification of Textile Yarns: Part I

Gonsalves, V.E.

doi:10.1177/004051755302301005

Cited by 21 publications

(3 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…But according to the theory of the solid state, electrons inserted in an empty band, or holes left in a filled band, are free to move throughout the crystal, once the attractive forces resulting from the charge of opposite sign on the other material are removed. Gonsalves [4] has used this argument to formulate a theory based on surface states. This is certainly a possibility, but we believe that the postulation of surface states is unnecessary, since the existence of surface states provides for a localization of electrons only in certain cases; in some cases where it appears from the theory that electrons should be free to move on the surface, they are found to be fixed.…”

Section: Substances In Contactmentioning

confidence: 99%

Static Electrification of Filaments Theoretical Aspects1

Hersh

Montgomery

1956

Textile Research Journal

View full text Add to dashboard Cite

A theoretical model based on the band structure of the solid state is proposed in order to describe the transfer of charge when two solids are rubbed together. Only the structure in the interior is considered, the interpenetration of the bodies being supposed deep enough that the effects of foreign surface layers and of surface states are slight. The theory is applied to data on static electrification of filaments rubbed together under controlled ambient and mechanical conditions. The theory provides a semiquantitative description of most of the observed phenomena.

show abstract

Section: Substances In Contactmentioning

confidence: 99%

Static Electrification of Filaments Theoretical Aspects1

Hersh

Montgomery

1956

Textile Research Journal

View full text Add to dashboard Cite

show abstract

“…The rather desultory activity in this field died off almost completely about 1930, at which time-as indeed up to the present-it could be fairly said that no clear picture of either the qualitative or quantitative phenomena had emerged. But in the late 1940's, to a large extent stimulated by the demands of the textile and the plastics industries, attack on the problem was made anew; see, for example, references [1,3,6,7,8,9,10,12,13,21,23,26,27] . There is hope that present-day techniques and materials, coupled with the advances in theory of the solid state, will permit substantial advances in the understanding of this traditional subject.…”

Section: Introductionmentioning

confidence: 99%

Static Electrification of Filaments

Hersh

Montgomery

1955

Textile Research Journal

View full text Add to dashboard Cite

In order to study the generation of charge on fibrous materials, an apparatus was constructed in which a fiber is held fixed while a second is rubbed across it under controlled mechanical and ambient conditions. It was found that the reproducibility was usually within ± 5% when the same two fibers were rubbed repeatedly; that the charge generated was dependent on the manner in which the materials were rubbed; and that the magnitude of the charge generated was directly proportional to the length of material rubbed and to the normal force between the fibers (although in some cases a limiting maximum value was reached), but was independent of the apparent area of contact between the fibers and of the tension on the fibers. The effects produced by changes in velocity are more complicated to describe. Charge transfer was found to be independent of velocity when insulators (except Teflon) were rubbed together. For metals on insulators other than Teflon, the charge generated was found to increase linearly with velocity until a limiting value was reached, and then to remain constant. When Teflon and metals were rubbed together, the charge increased linearly with velocity without reaching a maximum. When Teflon was rubbed with insulators, the charge increased linearly with velocity in some cases but remained constant in others. A study of the dependence of the sign and amount of charge transferred on the nature of the materials rubbed was undertaken, and a triboelectric series was established. For metals on insulators, the amount of charge generated was found to be related to the work function of the metal and the position of the insulator in the triboelectric series. For insulators rubbed on insulators, the amount of charge transferred appeared to be independent of the positions of the insulators in the series.

show abstract

“…The above is of course a very simple approach to the phenomenon of static electrification. A more complete description of the whole process can be found in [4][5][6][7]. In fluidization processes and granular flow systems, triboelectrification is inevitable due to the continuous and random motion of particles which results in numerous collisions, friction and rolling between particles and particles, particles and fluid, or particles and wall to occur constantly.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of Electrostatic Charge Generation for Granules

Zhou

Yin

et al. 2015

Procedia Engineering

View full text Add to dashboard Cite

In studies of granule electrification due to sliding, quantitatively evaluating the charging characteristic of single particles, rather than of a mass of granules as a group, is important for a fundamental understanding of the elementary tribocharging phenomenon, which is complicated, since it is resulted from electrical and physical properties of granules and operational environment conditions. In this work, charge transfer due to a single particle repeated sliding along metal plane for Polyvinyl Chloride(PVC)granules(diameter 1.1-4.1 mm, in the shape of halfcircle or rectangle). The amount of transferred charge is expressed as a function of granular shape factor, such as length-ratio, sliding area, front-facing edge, as well as sliding velocity, plane angle and relative humidity. The transferred charge increases with length-ratio and area. Front-facing edge, plane angle, sliding velocity and relative humidity do have effect on the degree of electrification.

show abstract

Some Fundamental Questions Concerning the Static Electrification of Textile Yarns: Part I

Cited by 21 publications

References 12 publications

Static Electrification of Filaments Theoretical Aspects1

Static Electrification of Filaments Theoretical Aspects1

Static Electrification of Filaments

Experimental Investigation of Electrostatic Charge Generation for Granules

Contact Info

Product

Resources

About