CN-224226940-U - Waterproof fireproof insulating tape

Abstract

The utility model discloses a waterproof fireproof insulating tape, and relates to the technical field of insulating tapes. The waterproof fireproof insulating adhesive tape comprises a waterproof sealing layer, a fireproof layer, a substrate layer and an adhesive layer, wherein the fireproof layer is attached to the substrate layer, the substrate layer is attached to the adhesive layer, the waterproof sealing layer is 匚 -shaped, the fireproof layer, the substrate layer and the adhesive layer are wrapped by the adhesive layer, openings of 匚 -shaped correspond to the adhesive layer, the surface of the waterproof sealing layer, which is far away from the fireproof layer, is provided with a submicron-sized protruding structure, and the fireproof layer is made of ceramic silicon rubber. The utility model utilizes 匚 waterproof sealing layer to cover the fireproof layer, the base material layer and the adhesive layer to form a physical moisture barrier, cut off a lateral water seepage path and realize omnidirectional waterproof sealing. The fireproof layer is ceramic silicon rubber, has excellent fireproof, flame-retardant, low-smoke and nontoxic characteristics, and can be subjected to in-situ ceramic forming to form a hard heat insulation layer when meeting fire, so that oxygen and heat conduction are isolated, and the insulation stability of the substrate layer is ensured.

Inventors

• LI LINJUN
• LIANG CHAOYUN

Assignees

• 广东金晖科技集团有限公司

Dates

Publication Date

20260512

Application Date

20250610

Claims (10)

1. 1. The waterproof fireproof insulating adhesive tape is characterized by comprising a waterproof sealing layer, a fireproof layer, a substrate layer and an adhesive layer, wherein the fireproof layer is attached to the substrate layer, and the substrate layer is attached to the adhesive layer; The waterproof sealing layer is 匚, the fireproof layer, the substrate layer and the adhesive layer are wrapped, and the opening of 匚 corresponds to the adhesive layer; the surface of the waterproof sealing layer far away from the fireproof layer is provided with submicron-level protruding structures which are uniformly arranged; the fireproof layer is made of ceramic silicon rubber.
2. 2. The waterproof and fireproof insulating tape according to claim 1, wherein the surface of the waterproof sealing layer, which is far away from the fireproof layer, is attached with a nano-silica hydrophobic coating.
3. 3. The waterproof and fireproof insulating tape according to claim 1, wherein the waterproof sealing layer is made of butyl rubber.
4. 4. The waterproof and fireproof insulating tape according to claim 1, wherein temperature-sensitive glass fiber bundles and expandable graphite particles are filled between the fireproof layer and the substrate layer.
5. 5. The waterproof and fireproof insulating tape according to claim 4, wherein the diameter of the temperature-sensitive glass fiber bundles is smaller than the particle size of the expandable graphite particles.
6. 6. The waterproof and fireproof insulating tape according to claim 5, wherein the temperature-sensitive glass fiber bundles have a diameter of 2-5 μm and the expandable graphite particles have a particle diameter of 8-15 μm.
7. 7. The waterproof and fireproof insulating tape of claim 6, further comprising an epoxy buffer layer, wherein the temperature sensitive glass fiber bundles and expandable graphite particles are located within the epoxy buffer layer.
8. 8. The waterproof and fireproof insulating tape according to claim 1, wherein the substrate layer is polyimide.
9. 9. The waterproof and fireproof insulating tape according to claim 1, wherein the adhesive layer is a flame-retardant silicone pressure-sensitive adhesive.
10. 10. The waterproof and fireproof insulating tape of claim 1, further comprising a release layer, wherein the release layer is bonded to the adhesive layer.

Description

Waterproof fireproof insulating tape Technical Field The utility model relates to the technical field of insulating tapes, in particular to a waterproof fireproof insulating tape. Background The insulating tape is used as a key material for electric protection and is widely applied to the fields of wire and cable joint sealing, insulating bandaging of electronic equipment, fireproof protection of industrial facilities and the like. Along with the increasing demands of high-reliability scenes such as new energy sources, aerospace and the like, higher requirements are put on the functionality of the insulating adhesive tape, namely waterproof sealing, fireproof flame retardance and stable electrical insulation performance are required to be achieved at the same time. The existing waterproof sealing adhesive tape of organic silicon or rubber has good flexibility and environmental sealing performance, but has limited flame retardant grade and is easy to melt and lose efficacy at high temperature, while the mica-based or ceramic fiber-based fireproof insulating adhesive tape has excellent high temperature resistance, but is hard and brittle in material and poor in hydrophobicity, so that insulation reliability is difficult to maintain for a long time in a humid environment. For application scenes such as high-voltage cable joints and machine-mounted equipment harnesses which are required to be exposed to damp heat and temperature rapid change environments for a long time, the conventional adhesive tape is difficult to meet the use requirements, so that development of a composite adhesive tape capable of providing waterproof and fireproof reliable protection is needed. Disclosure of utility model The embodiment of the utility model aims to provide the waterproof fireproof insulating tape which is reliably protected. In order to solve the above problems, the embodiments of the present utility model provide the following technical problems: a waterproof and fireproof insulating adhesive tape comprises a waterproof sealing layer, a fireproof layer, a substrate layer and an adhesive layer, wherein the fireproof layer is attached to the substrate layer, and the substrate layer is attached to the adhesive layer; The waterproof sealing layer is 匚 -shaped, the fireproof layer, the substrate layer and the adhesive layer are wrapped, and the opening of 匚 -shaped corresponds to the adhesive layer; the fireproof layer is made of ceramic silicon rubber. The waterproof sealing layer is further characterized in that a nano silicon dioxide hydrophobic coating is attached to the surface of the waterproof sealing layer far away from the fireproof layer. The waterproof sealing layer is made of butyl rubber. The temperature-sensitive glass fiber bundles and the expandable graphite particles are filled between the fireproof layer and the substrate layer. The temperature-sensitive glass fiber bundle has a diameter smaller than the particle diameter of the expandable graphite particles. The further technical proposal is that the diameter of the temperature sensitive glass fiber bundle is 2-5 mu m, and the particle size of the expandable graphite particles is 8-15 mu m. The technical scheme is that the temperature-sensitive glass fiber bundle and expandable graphite particles are positioned in the epoxy resin buffer layer. The technical scheme is that the base material layer is polyimide. The technical scheme is that the adhesive layer is a flame-retardant organic silicon pressure-sensitive adhesive. The technical scheme is that the adhesive layer is characterized by further comprising a release layer, wherein the release layer is attached to the adhesive layer. Compared with the prior art, the technical effects achieved by the embodiment of the utility model include: The utility model provides a waterproof fireproof insulating adhesive tape which comprises a waterproof sealing layer, a fireproof layer, a substrate layer and an adhesive layer, wherein the fireproof layer is attached to the substrate layer, the substrate layer is attached to the adhesive layer, the waterproof sealing layer is 匚 and wraps the fireproof layer, the substrate layer and the adhesive layer, an opening of 匚 corresponds to the adhesive layer, the surface of the waterproof sealing layer far away from the fireproof layer is provided with a submicron-level protruding structure, and the fireproof layer is made of ceramic silicon rubber. The utility model utilizes 匚 waterproof sealing layer to cover the fireproof layer, the base material layer and the adhesive layer to form a physical moisture barrier, cut off a lateral water seepage path and realize omnidirectional waterproof sealing. The surface of the waterproof sealing layer is provided with a submicron-level protruding structure to form a bionic micro-nano hydrophobic surface, which is beneficial to increasing the surface contact angle of the waterproof sealing layer, cutting off the infiltration path of water m