Effect of Oxidation Conditions in the System Dinitrogen tetroxide-Tetrachloromethane on Mechanical Characteristics of Viscose Threads

The relationship between the functional composition and mechanical characteristics of viscose cord threads with various linear densities, on the one hand, and oxidation conditions in the system N2O4-CCl4 on the other, was studied. The effects of the oxidant composition and treatment time on the tensile strength of dry and wet threads, and those tied in a knot, and also on the stability in a phosphate buffer were analyzed. The optimal conditions for making threads with preset content of carboxy groups, having sufficient mechanical strength and stability in the phosphate buffer (pH 7.5) at 310 K, are determined.