Information on industrial paper obtained from special purpose heat-resistant and fire-resistant fibers by the method of fiber swelling is presented. Results of a study of the effect of fiber cutting length on the mechanical properties the paper are presented. Corresponding dependencies are established. [ABSTRACT FROM AUTHOR]
Information is provided on the properties of technical-purpose papers based on heat-resistant superhigh modulus (SHM) para-aramid fibres containing heterocyclic rings. Various methods of producing such papers are reviewed. The properties of samples of the heat-resistant papers are listed. The results of study and comparison of chemical resistance of the obtained papers are adduced. [ABSTRACT FROM AUTHOR]
Heat and moisture treatments were shown to affect restoration of the capillary-porous structure of paper folders that was lost during drying. Thermodynamic functions of cellulose water of hydration were calculated for hydrothermal treatment over broad ranges of time and temperature. The effects of saturated vapor with high state parameters on paper strength were demonstrated. [ABSTRACT FROM AUTHOR]