title: Electrical insulated paper from cotton linter.
abstract: Insulated paper had been prepared from cotton linter containing certain additives. Strength properties had been studied for all paper prepared from cotton linter, before and after impregnating in the linseed oil. Also, the dielectric constant (έ) and AC electrical conductivity with frequencies over the range (100 kHz to 3 MHz) and at different temperatures were studied. Blended cotton linter with glass fiber or polyester fiber increased the dielectric constant. Since the glass fibers lowered the power factor from 0.63 to 0.28% and enhanced dielectric constant. The addition of hydrophilic fibers such as rayon or polyester fiber can be made paper of low porosity, low density and high dielectric resistance. Also, the addition of lead sulphate improved dielectric constant of paper since it has dielectric coefficient >20. The dielectric constant in sample which dipped in oil is higher than the sample without oil.
authors.affiliation: Cellulose and Paper Department, National Research Center, Dokki, Cairo, Egypt.
authors.forename: Houssni
authors.initials: H
authors.lastname: El-Saied
authors.affiliation: Cellulose and Paper Department, National Research Center, Dokki, Cairo, Egypt.
authors.forename: Magda G
authors.initials: MG
authors.lastname: El-Meligy
authors.affiliation: Cellulose and Paper Department, National Research Center, Dokki, Cairo, Egypt.
authors.forename: Samar H
authors.initials: SH
authors.lastname: Mohamed
authors.affiliation: Physics Department, Faculty of Women, Ain Shams University, Cairo, Egypt.
authors.forename: S Abd
authors.initials: SA
authors.lastname: El-Mongy