The present invention relates to the technical field of silicone rubber, and discloses a high thermal conductivity silicone rubber material and a preparation method thereof. The present invention obtains a high thermal conductivity silicone rubber material by adding modified silicone rubber, silicone rubber, alumina, a sulfur-containing flame retardant, hydroxylated boron nitride and zinc chloride into a twin-screw extruder for blending and extrusion. Carbon nanotubes in the modified silicone rubber have flame retardancy and high thermal conductivity. Sulfur in the sulfur-containing flame retardant can promote the carbonization process of the material during combustion, and the formed carbon layer can effectively block oxygen and heat, improving the flame retardancy of the material. Carbon nanotubes tend to agglomerate, and modification reduces agglomeration to achieve better thermal conductivity. Modified silicone rubber and silicone rubber have good compatibility, and the compatibility between carbon nanotubes and silicone rubber is also improved.
Country Code: CN
Application Number: CN202410945814.6
