Moisture-proof double-sided adhesive tape

Abstract

The utility model discloses a moisture-proof double-sided adhesive tape which comprises an adhesive tape cylinder core and a double-sided adhesive tape main body, and the double-sided adhesive tape main body is sequentially composed of an upper butyl rubber moisture-proof layer, a polyolefin release layer, an upper phenolic resin adhesive layer, a moisture-proof base layer and a lower phenolic resin adhesive layer from top to bottom. The damp-proof base layer is composed of an upper base layer, a lower base layer, an upper anti-corrosion adhesive layer, a lower anti-corrosion adhesive layer and a waterproof edge layer, the upper anti-corrosion adhesive layer, the lower base layer and the lower anti-corrosion adhesive layer are sequentially bonded from top to bottom, and the upper base layer is bonded with the upper phenolic resin adhesive layer through the upper anti-corrosion adhesive layer. The lower base layer is bonded with the lower phenolic resin adhesive layer through the lower anti-corrosion adhesive layer, and the waterproof edge layer wraps the upper anti-corrosion adhesive layer, the upper base layer, the lower base layer and the lower anti-corrosion adhesive layer and is bonded with the upper anti-corrosion adhesive layer, the upper base layer, the lower base layer and the lower anti-corrosion adhesive layer. The moisture-proof adhesive tape has the advantages of excellent moisture-proof capability, high adhesion strength and fracture resistance.

Description

Technical Field

[0001] The utility model relates to a tape, in particular to a moisture-proof double-sided tape. Background Art

[0002] Since the advent of tapes, they have become an indispensable item in people's daily lives. According to their functions, they can be divided into high-temperature tapes, double-sided tapes, insulating tapes, special tapes, pressure-sensitive tapes, die-cut tapes, etc. Among them, double-sided tapes can be pasted on both the front and back sides of the base material.

[0003] The sticking effect of existing double-sided tapes is easily affected by the environment. Especially when used in some humid environments, water molecules will penetrate into the tape along the seam edges. When the water molecules in the tape are supersaturated, it will cause a decline in the sticking performance of the tape. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a moisture-proof double-sided tape.

[0005] The technical solution of the utility model is as follows:

[0006] A moisture-proof double-sided tape includes a tape core and a double-sided tape body. The double-sided tape body is composed of a butyl rubber upper moisture-proof layer, a polyolefin release layer, an upper phenolic resin adhesive layer, a moisture-proof base layer, and a lower phenolic resin adhesive layer from top to bottom. The moisture-proof base layer is composed of an upper base layer, a lower base layer, an upper anti-corrosion adhesive layer, a lower anti-corrosion adhesive layer, and a waterproof edge layer. The upper anti-corrosion adhesive layer, the upper base layer, the lower base layer, and the lower anti-corrosion adhesive layer are adhesively bonded from top to bottom. The upper base layer is adhesively bonded to the upper phenolic resin adhesive layer through the upper anti-corrosion adhesive layer. The lower base layer is adhesively bonded to the lower phenolic resin adhesive layer through the lower anti-corrosion adhesive layer. The waterproof edge layer wraps and adhesively bonds the peripheries of the upper anti-corrosion adhesive layer, the upper base layer, the lower base layer, and the lower anti-corrosion adhesive layer.

[0007] Further, a moisture-proof chamber is formed on the bottom surface of the butyl rubber upper moisture-proof layer, and the polyolefin release layer is located in the moisture-proof chamber.

[0008] Further, the periphery of the upper phenolic resin adhesive layer is surrounded by a first waterproof adhesive, and the periphery of the lower phenolic resin adhesive layer is surrounded by a second waterproof adhesive.

[0009] Further, a plurality of rows of anti-fold grooves are formed on the bottom surface of the upper base layer, and a plurality of rows of anti-fold reinforcing ribs adapted to the anti-fold grooves are convexly provided on the top surface of the lower base layer.

[0010] Further, the waterproof edge layer is a PVC waterproof membrane waterproof layer.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model is composed of a butyl rubber upper moisture-proof layer, a polyolefin release layer, an upper phenolic resin adhesive layer, a moisture-proof base layer, and a lower phenolic resin adhesive layer from top to bottom. The butyl rubber upper moisture-proof layer can prevent moisture from penetrating the release layer and causing the upper and lower adhesive layers to be affected by moisture. The release layer is made of polyolefin material and is not easy to absorb water, further improving the moisture-proof ability of the tape. Both the upper and lower adhesive layers are processed from phenolic resin materials, enabling the double-sided tape to adhere to items more firmly. The moisture-proof base layer in the middle also has moisture-proof ability, and the waterproof edge layer on its periphery can prevent moisture and water from eroding the base layer through both sides of the double-sided tape base layer. In addition, the upper anti-corrosion adhesive layer and the lower anti-corrosion adhesive layer above and below the base layer can effectively provide anti-corrosion function, and the double-sided tape will not be corroded even after being placed for a long time, extending the service life of the tape. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present utility model, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0013] Figure 1 is a schematic structural diagram of a moisture-proof double-sided tape provided by the present utility model;

[0014] Figure 2 is a structural cross-sectional view of the double-sided tape main body of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the following will further describe the present utility model in detail with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0016] In order to illustrate the technical solutions described in the present utility model, the following will be described through specific embodiments.

[0017] Embodiment

[0018] Please refer to Figure 1 This embodiment provides a moisture-proof double-sided tape, including a tape core 1 and a double-sided tape main body 2. Combining Figure 2As shown, the double-sided tape body 2 is successively composed of a butyl rubber upper moisture-proof layer 21, a polyolefin release layer 22, an upper phenolic resin adhesive layer 23, a moisture-proof base layer 24, and a lower phenolic resin adhesive layer 25 from top to bottom. Among them, the butyl rubber upper moisture-proof layer 21 can prevent moisture from penetrating the release layer and causing the upper and lower adhesive layers to be affected by moisture. Preferably, a moisture-proof chamber is formed on the bottom surface of the butyl rubber upper moisture-proof layer 21, and the polyolefin release layer 22 is located in the moisture-proof chamber, so as to prevent moisture from entering the tape from both sides of the polyolefin release layer 22. And the polyolefin release layer 22 is made of polyolefin material and has the characteristic of not being easy to absorb water; the adhesive force of the upper phenolic resin adhesive layer 23 is stronger than that of ordinary resin adhesive layers and can adhere to items more firmly. Preferably, the periphery of the upper phenolic resin adhesive layer 23 is surrounded by a first waterproof adhesive 26, so as to prevent moisture and water from entering the tape from the periphery of the upper phenolic resin adhesive layer 23; the moisture-proof base layer 24 located in the middle also has moisture-proof ability and is composed of an upper base layer 241, a lower base layer 242, an upper anti-corrosion adhesive layer 243, a lower anti-corrosion adhesive layer 244, and a waterproof edge layer 245. The upper anti-corrosion adhesive layer 243, the upper base layer 241, the lower base layer 242, and the lower anti-corrosion adhesive layer 244 are successively bonded from top to bottom. The upper base layer 241 is bonded to the upper phenolic resin adhesive layer 23 through the upper anti-corrosion adhesive layer 243, and the lower base layer 242 is bonded to the lower phenolic resin adhesive layer 25 through the lower anti-corrosion adhesive layer 244. The waterproof edge layer 245 wraps and bonds the peripheries of the upper anti-corrosion adhesive layer 243, the upper base layer 241, the lower base layer 242, and the lower anti-corrosion adhesive layer 244. The waterproof edge layer 245 is a PVC waterproof membrane waterproof layer, and through the water-blocking effect, it can prevent moisture and water from eroding the base layer through both sides of the base layer. In addition, the upper anti-corrosion adhesive layer 243 and the lower anti-corrosion adhesive layer 244 above and below the base layer can effectively provide an anti-corrosion function. Preferably, a plurality of rows of anti-folding grooves are provided on the bottom surface of the upper base layer 241, and a plurality of rows of anti-folding reinforcing ribs 246 adapted to the anti-folding grooves are convexly provided on the top surface of the lower base layer 242. Through this structural design, the base layer can be provided with anti-folding ability to facilitate the use of the double-sided tape; similarly, the adhesive force of the lower phenolic resin adhesive layer 25 is stronger than that of ordinary resin adhesive layers and can adhere to items more firmly. Preferably, the periphery of the lower phenolic resin adhesive layer 25 is surrounded by a second waterproof adhesive 27, so as to prevent moisture and water from entering the tape from the periphery of the lower phenolic resin adhesive layer 25.

[0019] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A moisture-proof double-sided tape, comprising a tape core and a double-sided tape body, characterized in that: The double-sided tape body is composed of a butyl rubber upper moisture-proof layer, a polyolefin release layer, an upper phenolic resin adhesive layer, a moisture-proof base layer and a lower phenolic resin adhesive layer from top to bottom. The moisture-proof base layer is composed of an upper base layer, a lower base layer, an upper anti-corrosion adhesive layer, a lower anti-corrosion adhesive layer and a waterproof edge layer. The upper anti-corrosion adhesive layer, the upper base layer, the lower base layer and the lower anti-corrosion adhesive layer are bonded in sequence from top to bottom. The upper base layer is bonded to the upper phenolic resin adhesive layer through the upper anti-corrosion adhesive layer, and the lower base layer is bonded to the lower phenolic resin adhesive layer through the lower anti-corrosion adhesive layer. The waterproof edge layer covers the surrounding sides of the upper anti-corrosion adhesive layer, the upper base layer, the lower base layer and the lower anti-corrosion adhesive layer and bonds them to each other.

2. A moisture-proof double-sided tape according to claim 1, characterized in that: A moisture-proof cavity is formed on the bottom surface of the butyl rubber upper moisture-proof layer, and the polyolefin release layer is located in the moisture-proof cavity.

3. A moisture-proof double-sided tape according to claim 1, characterized in that: The upper phenolic resin adhesive layer is surrounded by a first waterproof adhesive, and the lower phenolic resin adhesive layer is surrounded by a second waterproof adhesive.

4. A moisture-proof double-sided tape according to claim 1, characterized in that: The bottom surface of the upper base layer is provided with a plurality of rows of anti-bending grooves, and the top surface of the lower base layer is provided with a plurality of rows of anti-bending reinforcing ribs matched with the anti-bending grooves.

5. The moisture-proof double-sided tape according to claim 1, characterized in that: The waterproof edge layer is a PVC waterproof membrane waterproof layer.

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