High reinforced fireproof cable sheath material and preparation method thereof

Abstract

The invention discloses a high reinforced fireproof cable sheath material. Raw materials of the high reinforced fireproof cable sheath material comprise, by weight, 85-95 parts of phenyl siloxane rubber, 20-25 parts of fumed silica, 13-17 parts of precipitated silica, 1.5-2 parts of otcamethylcyclotetrasiloxane, 40-50 parts of calcium carbonate, 5-13 parts of quartz powder, 1.2-1.7 parts of hydroxy silicone oil, 1.5-2.3 parts of polysiloxane, 0.00026-0.00058 parts of a platinum catalyst, 17-23 parts of aluminum hydroxide, 15-25 parts of magnesium hydroxide, 1-1.5 parts of dioctahedral alkali aluminum silicate, 0.4-0.7 parts of trioctahedral alkali aluminum silicate and 3-8 parts of zinc oxide. The invention also discloses a preparation method of the high reinforced fireproof cable sheath material. The high reinforced fireproof cable sheath material has the advantages of high reinforcing strength, good ablation resistance, excellent fireproof and fire-retardant properties, low production cost and simple preparation process.

Description

technical field [0001] The invention relates to the technical field of cable sheaths, in particular to a high-strength fire-resistant cable sheath material and a preparation method thereof. Background technique [0002] With the improvement of social safety awareness, many application fields have clearly put forward the flame retardant performance requirements for the rubber materials used. Usually, halogen-containing rubber matrix is ​​used or halogen flame retardant is added to the rubber matrix to achieve excellent flame retardant effect. , although the effect is very good, it emits a large amount of poisonous and corrosive gas when burning, accompanied by a large amount of smoke. With the increasingly stringent environmental protection and recycling regulations and the continuous emergence of new sheath materials, traditional cable materials are facing huge challenges. The current technology mainly uses halogen-free low-smoke flame-retardant rubber, mainly silicone rubbe...

AI Technical Summary

Problems solved by technology

[0002] With the improvement of social safety awareness, many application fields have clearly put forward the flame retardant performance requirements for the rubber materials used. Usually, halogen-containing rubber matrix is ​​used or halogen flame retardant is added to the rubber matrix to achieve excellent flame retardant effect. , although the effect is very good, it emits a large amount of poisonous and corrosive gas when burning, accompanied by a large amount of smoke

With the increasingly stringent environmental protection and recycling regulations and the continuous emergence of new sheath materials, traditional cable materials are facing huge challenges. The current technology mainly uses halogen-free low-smoke flame-retardant rubber, mainly silicone rubber and ethylene-propylene rubber. And ethylene-vinyl acetate rubber, etc. These rubbers have flame retardancy and self-extinguishing properties in fire, and have a certain effect in fire, but after continuous high-temperature combustion, the burnt residue has no mechanical strength and turns into ashes, which will It will cause more dangerous secondary hazards, and the protection of personal and property safety in fire is a major concern of people. How to prepare a cable sheath material with high reinforcement strength, good ablation resistance, and excellent fire resistance and flame retardancy has become a current demand. Technical issues resolved