A kind of PVC cable material and preparation method thereof

Abstract

The invention belongs to the field of new materials, and specifically relates to a PVC cable material and a preparation method thereof. The PVC cable material is composed of the following raw materials in parts by weight: 100 parts of PVC, 40-60 parts of plasticizer, 1-1 part of liquid calcium zinc stabilizer 5 parts, 5-10 parts of epoxidized soybean oil, 20-50 parts of sodium stearate, 0.5-3 parts of ultraviolet absorber, 5-10 parts of aluminum hydroxide, 5-20 parts of silicon dioxide. The PVC cable material of the invention is prepared by mixing raw materials. The PVC cable material provided by the invention has good flame retardancy and maintains good mechanical strength.

Description

Technical field[0001]The invention belongs to the field of new materials, and specifically relates to a PVC cable material and a preparation method thereof.Background technique[0002]With the development of economy, the demand for wires and cables is increasing. Especially in the fields of high-rise buildings, electronic products, electrical appliances, automobiles, computers and aerospace industrial products, the requirements for cable materials are also getting higher and higher. A large number of wires and cables use polyvinyl chloride. Polyvinyl chloride (PVC) is a type of thermoplastic with a long history. It has a series of advantages such as good mechanical and physical properties, excellent electrical properties, light resistance, chemical resistance, cold resistance, and good oil resistance. It is an ideal Industrial wire and cable materials.[0003]However, the chlorine content of PVC itself is as high as 56%, and the oxygen index (LOI) is as high as 45% to 49%. However, due ...

AI Technical Summary

Problems solved by technology

[0005] At present, the main materials of smoke suppressant products at home and abroad are molybdenum trioxide, molybdate (such as ammonium octamolybdate), stannate (zinc stannate), etc., which are characterized by good smoke suppression effect, but poor flame retardancy. Users need to add additional flame retardants. Generally, users add antimony trioxide or chlorinated paraffin wax, etc., which will increase the toxicity index of the product. In addition, the price is very expensive, ranging from 180,000 to 250,000 yuan per ton, which is difficult for the market to accept

In order to reduce costs, some domestic manufacturers of flame retardant smoke suppressants use zinc borate heptahydrate or borax, but their flame retardant effect and smoke suppression ability are not ideal, and the addition amount must exceed 10 parts per 100 parts of the product to work