Self-adhesive type ceramic composite belt and preparation method thereof

Abstract

The invention discloses a self-adhesive type ceramic composite belt. The self-adhesive type ceramic composite belt comprises a self-adhesive ceramic glue layer, a reinforcing layer and an isolating layer, wherein the reinforcing layer and the isolating layer are respectively positioned at the two sides of the self-adhesive ceramic glue layer; the self-adhesive ceramic glue layer and the reinforcing layer are fixed together; the self-adhesive ceramic glue layer is prepared from the following components in parts by weight: 60-100 parts of silicon rubber, 20-100 parts of white carbon black, 20-120 parts of ceramic powder, 1-20 parts of one or more of boric acid, boric anhydride, borate, polyborosiloxane or a boron-containing polymer, 1-20 parts of silicone oil, 0.00001-10 parts of platinum complex and/or platinum compounds, and 0.1-10 parts of a coupling agent. The self-adhesive type ceramic composite belt disclosed by the invention has self-adhesion, is mutually lapped and adhered during winding to achieve good sealing effects, has good moisture-proof and waterproof performances; during production, an isolating film is only needed to be added when the composite belt product is rolled, so that the process is simple and the production is easy.

Description

technical field [0001] The invention relates to a composite tape, in particular to a self-adhesive porcelain-able composite tape and a preparation method thereof. Background technique [0002] At present, most fire-resistant and flame-retardant cables use magnesium oxide mineral insulation or mica tape winding to achieve fire-resistant functions. [0003] However, magnesia mineral refractory insulated cables have the following disadvantages in manufacturing and application: first, the equipment cost is high, and magnesia mineral refractory insulated cables require special production and processing equipment, which is expensive and the equipment cost is high; second, the production cost High, because the outer sheath of the magnesia mineral refractory insulated cable is all copper, the price of copper is high, making the production cost higher, and it is limited to a certain extent in terms of practical application; Laying, installation and use are inconvenient, because copp...

AI Technical Summary

Problems solved by technology

[0003] However, magnesia mineral refractory insulated cables have the following disadvantages in manufacturing and application: first, the equipment cost is high, and magnesia mineral refractory insulated cables require special production and processing equipment, which is expensive and the equipment cost is high; second, the production cost High, because the outer sheath of the magnesia mineral refractory insulated cable is all copper, the price of copper is high, making the production cost higher, and it is limited to a certain extent in terms of practical application; Laying, installation and use are inconvenient, because copper sheathed magnesium oxide mineral fire-resistant insulated cables have special requirements in the process of production, processing, transportation, line laying, installation and use, such as the production and processing of magnesium oxide mineral fire-resistant insulated cables cannot be compared with polymer materials Such convenient processing, cumbersome and complicated laying and installation, high cost of raw materials, it is difficult to popularize and apply on a large scale, especially in civil buildings, etc., until now it has not been widely and universally used

[0004] In the production process, the fire-resistant cable wrapped with mica tape needs to be wound in multiple layers. Due to the limitation of process conditions, lap joint defects often occur at the lap joints and do not have waterproof performance. In addition, the mica tape is easy to become brittle and fall off after fire. , which greatly reduces the fire-resistant effect and causes a short circuit in the line, making it difficult to ensure the safe and smooth flow of power and communication in the event of a fire

Mica tape is not well sealed, and the material often contains fluorine, which does not meet the requirements of some halogen-free cables

[0005] The ceramic composite belt products on the market are mostly made of single-sided ceramic glue and glass fiber cloth. Although the ceramic glue has a certain self-adhesiveness, the ceramic glue surface and the glass fiber cloth surface overlap each other when wrapping. The self-adhesiveness is very weak, basically does not have a good seal, and does not have the effect of water resistance and moisture resistance