Modified polyvinyl chloride flame-retardant bending-resistant sheath rubber material, preparation method and cable

• Main Authors: DENG XIAOZHONG, ZHENG JUNCHAO, CHEN DAN, LIN YIZHANG, CHEN ZHANGPING
• Format: Patent
• Language: Chinese; English
• Published: 25.03.2022
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CONDUCTORS; ELECTRICITY; INSULATORS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The invention relates to the technical field of insulating rubber materials, in particular to a modified polyvinyl chloride flame-retardant bending-resistant sheath rubber material, a preparation method and a cable. Comprising the following components in parts by weight: 90-100 parts of SG0 type polyvinyl chloride resin, 70-90 parts of an environment-friendly plasticizer, 20-30 parts of an ethylene-n-butyl acrylate-carbonyl terpolymer, 10-15 parts of dioctyl maleate, 15-25 parts of a modified polymer, 8-15 parts of a composite flame retardant, 20-30 parts of magnesium hydroxide, 8-10 parts of an efficient environment-friendly calcium-zinc stabilizer and 1-2 parts of a lubricant. The modified polyvinyl chloride flame-retardant bending-resistant sheath rubber material obtained by the formula and the process has the characteristics of high tensile strength and high elongation at break, also meets the temperature resistance grade of-40 DEG C to 105 DEG C and the combustion grade of VW-1, and simultaneously meets