Power cable sheath tube with high insulativity

• Main Authors: SHU LIN, SHU YUFA, MA GANG
• Format: Patent
• Language: Chinese; English
• Published: 03.09.2021
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The invention discloses a power cable sheath tube with high insulativity, and belongs to the technical field of sheath tube production. The power cable sheath tube comprises the following raw materials by weight: 90-150 parts of polypropylene, 8-17 parts of calcium carbonate, 3-12 parts of glass fiber, 5-12 parts of talcum powder, 1-3 parts of carbon black, 0.5-1.5 parts of a coupling agent, 0.3-0.8 part of an antioxidant, 0.3-1.2 parts of a lubricant, and 1.5-3.5 parts of an anti-corrosion auxiliary agent. And the corrosion-resistant auxiliary agent is introduced into the polypropylene base material, and the corrosion resistance and high insulativity of the power cable sheath tube are further improved through the special molecular structure of the corrosion-resistant auxiliary agent. Due to the fact that molecules of the corrosion-resistant auxiliary agent have long fluorine-containing alkyl chains, the fluorine-containing alkyl chains are easy to gather on the surface of the sheath tube to form a fluorine c