Cable-sheath material with self-repair function, preparation method and cable sheath

• Main Authors: PENG LEI, CHEN TIANSHENG, FU QIANG, ZHANG SHENG, ZHENG ZHONG, PAN JUNZHEN, LIN MUSONG
• Format: Patent
• Language: Chinese; English
• Published: 31.07.2018
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CONDUCTORS; DERIVATIVES THEREOF; ELECTRICITY; INSULATORS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; POLYSACCHARIDES; 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 provides a cable-sheath material with a self-repair function. The cable-sheath material is prepared from the following raw materials in parts by weight: 30 to 100 parts of thermoplasticelastomer, 30 to 70 parts of self-repair polymer, 15 to 35 parts of plasticizer, 1 to 8 parts of stabilizer and 2 to 4 parts of reinforcing agent. The self-repair polymer forms a structure similar toa cross-linking point through adopting a polyacrylate copolymer elastomer as a base material and introducing a host group cyclodextrin and a guest group adamantane into a copolymer system, wherein thecyclodextrin group and the adamantane group can be bound together through such supramolecular acting force of host-guest recognition; such a physical cross-linking point can tend to recombination ina normal-temperature environment; the cross-linking point is regenerated; the damaged position of the material is self-repaired by the regeneration of the cross-linking point, and then, through addingadditives of the plasticizer