Results 241 to 250 of about 5,788,288 (289)

Dielectric properties of cellulose paper — I

Electrical Engineering, 1934
Studies of the dielectric properties of pure cellulose paper as used for high voltage insulation are reported in this paper. The studies reported in Part I, presented herewith, include investigation of the dielectric loss, phase difference, and capacitance of paper insulated specimens as related to the moisture content of the paper.
J. B. Whitehead, E. W. Greenfield
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Viscoelastic properties of paper

Fibre Science and Technology, 1980
Abstract Paper specimens of the type commonly used in high-frequency loudspeaker cones have been subjected to dynamic viscoelastic characterisation using a Rheovibron Viscoelastometer. The paper exhibited a broad, relatively weak transition which was amenable to phenomenological modelling using a Wiechert spring-dashpot representation.
David Roylance, Paul McElroy, Frederick McGarry   +2 more
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Improving Paper Properties

Polymer-Plastics Technology and Engineering, 2004
Abstract Maize starch was oxidized with sodium hypochlorite and hydrogen peroxide. Carboxyl content of oxidized starch were determined. Carboxyl content of starch oxidized with hydrogen peroxide is greater than that oxidized with hypochlorite. The maximum carboxyl content was obtained at pH 11 for 2 h by using hydrogen peroxide. On addition of oxidized
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The dielectric properties of paper

Journal of the Institution of Electrical Engineers, 1935
This paper is an outline of a detailed investigation of the fundamental dielectric propeities of paper. Measurements were made under carefully controlled conditions covering a very wide range, on three representative kinds of paper, both in the dry condition, and after impregnation with oil.
L. Hartshorn, W.H. Ward
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Optical Properties of Paper

Trans. of the IInd Fund. Res. Symp. Oxford, 1961, 1961
Optical properties of paper are those that govern its visual appearance-mainly, colour, opacity and gloss. These depend on the fact that paper consists of a network of doubly refractive transparent fibres immersed in air as medium and, in some cases, the optical properties can be expressed in terms of the absorption and scattering coefficients of the ...
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The Interdependence of Paper Properties

Trans. of the IInd Fund. Res. Symp. Oxford, 1961, 1961
The difficulties involved in interrelating paper properties are examined. Qualitative relationships through trends and experience are noted and the special case of quantitative interrelationship among burst, tensile and stretch is described. More basic considerations such as fibre length, fibre strength, sheet density, fibre orientation and interfibre
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Properties of the papers on the properties of the solid Earth

Reviews of Geophysics, 1995
The continuing Congressional assault on the Federal budget jeopardizes some, if not all, of the funding that supports the research described in the IUGG Quadrennial Report. For this reason, it is imperative that geophysicists come out of their labs and away from their computers to consider broader questions about the place of geophysical research in ...
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Preparation and physical properties of superhydrophobic papers

Journal of Colloid and Interface Science, 2008
In this study, we developed a facile method for preparing a superhydrophobic paper surface using a multi-layer deposition of polydiallyldimethylammonium chloride (polyDADMAC) and silica particles, followed by a fluorination surface treatment with 1H,1H,2H,2H-perfluorooctyltriethoxysilane (POTS, CF(3)(CF(2))(5)CH(2)CH(2)Si(OC(2)H(5))(3)).
Hongta, Yang, Yulin, Deng
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THE PAPER MAKING PROPERTIES OF STRAW HOLOCELLULOSE

Canadian Journal of Research, 1948
Fibrous holocellulose pulps were prepared in approximately quantitative yield from flax shives and wheat, oat, and fiber flax straw that had been macerated in a buhrstone mill and delignified by sodium chlorite. Paper hand sheets that were formed from pulps subjected to prolonged beating were glassinelike in character.
Adams, G.A., Castagne, A.E.
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Investigations on the influences of paper intrinsic properties and flame retardants on paper materials fire properties

2023
The use of materials made from renewable raw materials, such as paper, has increased more and more due to the steadily growing idea of sustainability. The very good properties of paper and the possibility of individually adjusting these properties through the manufacturing process or a variety of additives and modifications offer a very wide range of ...
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