Elastomer-based insulating cladding material for charging pile cable and preparation method of elastomer-based insulating cladding material

Abstract

The invention discloses an elastomer-based insulating cladding material for a charging pile cable and a preparation method of the elastomer-based insulating cladding material. The insulating claddingmaterial is prepared from the following raw materials in parts by mass: 100 parts of halogen-containing polyolefin, 35-85 parts of a small-molecule plasticizer, 15-45 parts of a polymeric plasticizer,30-80 parts of a toughening modifier, 10-25 parts of a flame-retardant compatible agent, 3-9 parts of a flame retardant, 3-9 parts of a lubricant, 5-25 parts of a heat stabilizer, 3-9 parts of an antioxidant, 3-9 parts of an ultraviolet stabilizer, 3-9 parts of a smoke suppressant and 15-45 parts of filler. The preparation method of the elastomer-based insulating cladding material is simple, thematerials are mixed uniformly and subjected to melting mixing and extrusion pelletizing, and the insulating cladding material can be obtained. The elastomer-based insulating cladding material for thecharging pile cable has the excellent properties of high and low temperature resistance, solvent extraction resistance, tear resistance, heat resistance, weather resistance, aging resistance and the like, and has advantages of high strength, high toughness, excellent flame retardancy and insulation performance and low smoke; the preparation process is simple, and the preparation cost is low.

Description

technical field [0001] The invention relates to an elastomer insulating coating material used for charging pile cables and a preparation method thereof. Background technique [0002] Electric energy has many advantages such as high transmission efficiency, clean and pollution-free, cheap and easy to obtain, and has begun to emerge in the field of transportation energy supply. At present, electric vehicles such as electric bicycles, electric vehicles, and subways have begun to replace traditional fuel vehicles on a large scale. [0003] Cables for charging systems of electric vehicles are one of the key devices connecting electric vehicles with fixed power transmission systems. The performance of such products directly determines whether electric vehicles can operate safely and reliably. Since cables for charging vehicles are often affected by unfavorable conditions such as sunlight, weathering, oil stains, and humidity during use, and also encounter situations such as bendi...

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Problems solved by technology

[0004] At present, a series of insulating materials for cables used in charging vehicles have been developed, but they all have obvious defects and are difficult to meet actual needs. For example: CN 105385066 A discloses the production of a polyvinyl chloride plastic and charging pile connecting cable sheath material method, the connection cable sheath material prepared by this method has the advantages of oil resistance, low temperature resistance, stable performance, etc., but the flame retardant performance is not good, and it is difficult to meet actual needs; CN 105602236 A discloses a PVC / Modified polyurethane oil-resistant and flame-retardant thermoplastic elastomer, the thermoplastic elastomer has excellent oil resistance and flame-retardant performance, but its raw material cost and processing cost are high, and it is difficult to apply on a large scale; CN 105237896 A and CN 105968587 A disclose a kind of Chlorinated polyethylene / ethylene propylene rubber / SEBS is the insulating material for charging pile cables with the main resin. This insulating material has the advantages of high mechanical strength, acid and alkali resistance, and aging resistance, but its flame Adding a large amount of additives, the flame retardant is easy to seep out of the material after long-term use, which seriously affects the flame retardant performance of the cable, and there is a big safety hazard

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