| abstract |
The invention relates to the technical field of cable sheathing, in particular to a ceramizable silicone rubber and a preparation method and application thereof, comprising the following raw materials in parts by weight: 80-100 parts of raw silicon rubber, 10-40 parts of fumed silica, 2-10 parts of composite ceramic powder, 1-3 parts of hydroxy silicone oil, 0.5-2 parts of vulcanizing agent, 0.1-0.5 parts of accelerator, 0.2-2 parts of silane coupling agent. The purpose of the present invention is to make the silicone rubber have good processing performance, can be extruded at high speed, and can be ceramized at a temperature of 390-500 ℃. Under the high temperature condition of ‑1000℃, the ceramic body will not be deformed, and the cable will not crack, which can effectively prolong the service life of the cable. |