Cold-resistant oil-resistant flame-retardant polyvinyl chloride cable material without pungent smell and preparation method of cold-resistant oil-resistant flame-retardant polyvinyl chloride cable material without pungent smell

Abstract

The invention discloses a cold-resistant oil-resistant flame-retardant polyvinyl chloride cable material without pungent smell. The cold-resistant oil-resistant flame-retardant polyvinyl chloride cable material without pungent smell comprises, by mass, 20-25 parts of resin powder, 15-20 parts of plasticizer, 5-10 parts of lubricant, 10-15 parts of carbon black, 8-13 parts of stabilizer, 9-14 parts of polyethylene glycol, 17-22 parts of flame retardant, 7-12 parts of Elvaloy and 16-21 parts of nitrile butadiene rubber powder. The cold-resistant oil-resistant flame-retardant polyvinyl chloride cable material without pungent smell and a preparation method have the advantages that since polyethylene glycol is added into a preparation process, the intrinsic pungent smell of the materials can be eliminated; the plasticizer, the Elvaloy and the nitrile butadiene rubber powder are added into the preparation process, so that the prepared material is resistant to cold and oil; the nitrile butadiene rubber powder is capable of assisting the Elvaloy in preventing the plasticizer from separating out, and the Elvaloy is a non-migrating terpolymer and endows a PVC (polyvinyl chloride) polymer with high durability and high heat stability.

Description

technical field [0001] The invention relates to the field of cable materials, in particular to a cold-resistant, oil-resistant and flame-retardant polyvinyl chloride cable material without pungent taste and a preparation method thereof. Background technique [0002] Most of the traditional flame-retardant PVC cable materials use PVC resin powder as the main resin base material, use DOP and DOS as plasticizers, and add a certain amount of aluminum hydroxide to make flame-retardant PVC cable materials. However, it is difficult for this type of cable material to pass the -40°C low-temperature impact test required in cables or optical cables and the mineral oil immersion test in GB / T2951.21-2008, which limits the application of this type of traditional cable material. . Traditional PVC cable materials are made of PVC resin powder and DOP and DOS type plasticizers, because the plasticizers have insufficient cold resistance, and at the same time, oily small molecules can easily p...

AI Technical Summary

Problems solved by technology

However, it is difficult for this type of cable material to pass the -40°C low-temperature impact test required in cables or optical cables and the mineral oil immersion test in GB / T2951.21-2008, which limits the application of this type of traditional cable material.

Traditional PVC cable materials are made of PVC resin powder and DOP and DOS type plasticizers, because the plasticizers have insufficient cold resistance, and at the same time, oily small molecules can easily penetrate into PVC resin in the occasions that require oil resistance. Internally, the performance of the material is deteriorated, and the oil resistance requirements cannot be met, and the current cable material is due to the addition of a large amount of resin powder, carbon black and other chemical additives in the production process, and the lack of polyethylene glycol. Solvent neutralization will produce some pungent smells, which are not only harmful to the human body, but also have some negative effects on the soil quality if the cables are placed in the soil for a long time