Antimony-free flame-retardant polyvinyl chloride cable material as well as preparation method and application thereof

Abstract

The invention relates to an antimony-free flame-retardant polyvinyl chloride cable material as well as a preparation method and application thereof. The antimony-free flame-retardant polyvinyl chloride cable material comprises the following components in parts by weight: 100 parts of polyvinyl chloride; 5-12 parts by weight of a flame retardant; and 30-160 parts by weight of an auxiliary agent. The flame retardant is prepared from aluminum hypophosphite and 2,3-dimethyl-2,3-diphenyl butane according to the mass ratio of 3:1 to 10:1. The compound flame retardant of aluminum hypophosphite and 2,3-dimethyl-2,3-diphenyl butane according to the specific mass ratio are added into the antimony-free flame-retardant polyvinyl chloride cable material, the efficient flame-retardant effect can be achieved under the condition that the adding amount of the flame retardant is small, it can be guaranteed that the cable material has the excellent mechanical property, the high-efficiency flame-retardant effect is kept in a wide hardness range, and the raw materials adopted by the invention are environment-friendly and nontoxic raw materials and can be recycled, so that the production efficiency is improved and the production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to an antimony-free flame-retardant polyvinyl chloride cable material and a preparation method and application thereof. Background technique [0002] As the situation of fire accidents becomes more and more serious, people have higher and higher requirements for fire-fighting and flame-retardant properties of materials. Among them, wire and cable products work in a high-voltage heating environment for a long time, so the fire-resistant and flame-retardant properties of cable products are very important. At present, most of the outer covering materials of cable products are polyvinyl chloride materials. The traditional flame retardant method is to add antimony trioxide as a flame retardant to achieve flame retardant purposes. However, due to the toxicity of antimony compounds themselves, Major environmental protection organizations have begun to restrict antimony elements i...

AI Technical Summary

Problems solved by technology

At present, most of the outer covering materials of cable products are polyvinyl chloride materials. The traditional flame retardant method is to add antimony trioxide as a flame retardant to achieve flame retardant purposes. However, due to the toxicity of antimony compounds themselves, Major environmental protection organizations have begun to restrict antimony elements in products; since antimony trioxide cannot be added to polyvinyl chloride cable materials, manufacturers have switched to conventional inorganic flame retardants such as magnesium hydroxide and aluminum hydroxide, but the amount added Large, usually more than 30% added, seriously affecting the physical properties of materials, for example: the mechanical properties of cable materials will be reduced

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