Rubber cable insulating material and preparation method thereof

Abstract

Embodiments of the invention disclose a rubber cable insulating material and a preparation method thereof, belonging to the field of rubber cables. A cavity with a certain size is formed in a rubber cable in an air pressure mode; a silicone adhesive is injected into the cavity; the silicone adhesive is ensured not to be in contact with air in the injection process so as to allow the silicone adhesive to be kept in a certain colloid state in the cavity; the silicone adhesive has the characteristics of weather resistance, vibration resistance, moisture prevention performance, odor resistance andadaptation to large cold and heat change, so the applicability of a cable is improved; when the cable is in use and the surface of the cable is scratched by a sharp object, the silicone adhesive in the cavity overflows from the notch; the silicone adhesive can be cured into a tough rubber solid material once the silicone adhesive is in contact with moisture in the air, so the notch of the cable is automatically filled; and the characteristics of the cured silicone adhesive are similar to the characteristics of the rubber cable material, so the use of the rubber cable is not influenced, and the practicability of the cable is improved.

Description

technical field [0001] The embodiments of the present invention relate to the field of rubber cables, in particular to a rubber cable insulating material and a preparation method thereof. Background technique [0002] The insulating material of the cable is one of the essential items in industry and civil use, mainly covering the surface of the wire core. At present, the insulating material of the cable is mainly made of polyethylene and polyethylene, which have certain insulating properties. [0003] The prior art has the following deficiencies: most of the existing cables are made of rubber-type soft materials, which have poor heat dissipation during use, and at the same time, in order to facilitate the cables to be carried, the materials used in the cables have greater toughness and are relatively The hardness of the cable is small, and the surface is easily scratched when it comes into contact with sharp objects. It is dangerous to expose the inner core to the air, so wo...

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Problems solved by technology

[0004] To this end, the embodiment of the present invention provides a rubber cable insulating material and its preparation method. By grinding alumina ceramics into powder and mixing them into the raw materials for preparing cables, alumina ceramics have the characteristics of high thermal conductivity and insulation, which increases the heat dissipation of cables. The effect will not affect the insulation of the rubber cable at the same time, and then the rubber cable is opened a cavity of a certain size by air pressure, and then the silicone glue is injected into the cavity, and the silicone glue is not in contact with the air during the injection process, so that Silicone glue maintains a certain colloidal shape in the cavity. Silicone glue has the characteristics of weather resistance, vibration resistance, moisture resistance, odor resistance and adaptability to large changes in cold and heat, which increases the applicability of the cable. , when the surface of the cable is scratched by a sharp object, the silicone glue in the cavity will overflow from the gap. Once the silicone glue contacts the moisture in the air, it will solidify into a tough rubber-like solid material, and the gap of the cable will automatically Make up, and the characteristics of the solidified silicone glue are similar to those of the rubber cable material, which will not affect the use of the rubber cable, increase the practicability of the cable, and solve the problem in the prior art that the surface of the rubber cable is easily damaged

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