A self-fusion anti-corrosion tape

Abstract

The utility model discloses a self-fusion anti-corrosion tape, which relates to the field of anti-corrosion tapes and comprises an adhesive layer and a base film connected to the lower surface of the adhesive layer. The adhesive layer is formed by rolling solid rubber and liquid rubber, and the base film is formed by rolling solid rubber. The adhesive layer and the base film both use the same solid rubber, so that the adhesive layer and the base film have the same material, so that the material difference between the two is small. Moreover, since they have the same material, the adhesive layer and the base film can be blended to produce a self-fusion structure, which solves the problem of easy delamination caused by the high and low changes in the external environment temperature after the pipeline anti-corrosion tape is wrapped, and ensures the anti-corrosion effect of the pipeline anti-corrosion tape.

Description

Technical Field

[0001] The utility model relates to the field of anti-corrosion tapes, in particular to a self-fusion anti-corrosion tape. Background Art

[0002] Existing pipeline anti-corrosion tapes generally include a polyethylene base film and an adhesive layer disposed on the polyethylene base film. The material difference between the adhesive layer and the polyethylene base film is quite large, so that after the pipeline anti-corrosion tape is wrapped, it is easily delaminated due to the high and low changes in the external ambient temperature, which leads to a deterioration in the anti-corrosion effect. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a self-fusion anti-corrosion tape, which solves the problem of easy stratification caused by high and low changes in external ambient temperature and ensures the anti-corrosion effect.

[0004] To achieve the above purpose, the utility model provides the following solutions:

[0005] The utility model provides a self-fusion anti-corrosion tape, comprising an adhesive layer and a base film connected to the lower surface of the adhesive layer, the adhesive layer is rolled from solid rubber and liquid rubber, the base film is rolled from solid rubber, and the adhesive layer and the base film both use the same solid rubber.

[0006] Preferably, the adhesive layer is provided in plurality, and the plurality of adhesive layers are arranged in sequence from top to bottom, and the lower surface of the lowest adhesive layer is connected to the base film.

[0007] Preferably, the plurality of adhesive layers are made of the same solid rubber and the same liquid rubber.

[0008] Preferably, the self-adhesiveness of the plurality of adhesive layers sequentially arranged from top to bottom decreases sequentially.

[0009] Preferably, it further comprises release paper, wherein the release paper is arranged on the upper surface of the uppermost adhesive layer.

[0010] Preferably, the number of the adhesive layers is 2 to 4.

[0011] Preferably, the solid rubber is butyl rubber.

[0012] Preferably, the liquid rubber is polyisobutylene rubber.

[0013] Compared with the prior art, the utility model has achieved the following technical effects:

[0014] The self-fusion anti-corrosion tape of the utility model comprises an adhesive layer and a base membrane connected to the lower surface of the adhesive layer. The adhesive layer is formed by rolling solid rubber and liquid rubber, and the base membrane is formed by rolling solid rubber. Both the adhesive layer and the base membrane are made of the same solid rubber, so that the adhesive layer and the base membrane have the same material, so that the material difference between the two is small. Moreover, since they have the same material, the adhesive layer and the base membrane can be blended to produce a self-fusion structure, which solves the problem of easy delamination caused by the high and low changes in the external environment temperature after the pipeline anti-corrosion tape is wrapped, and ensures the anti-corrosion effect of the pipeline anti-corrosion tape. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a schematic structural diagram of the self-fusion anti-corrosion tape provided by the utility model.

[0017] Explanation of the accompanying drawings: 100, self-fusion anti-corrosion tape; 1, first adhesive layer; 2, second adhesive layer; 3, third adhesive layer; 4, base film; 5, release paper. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] The utility model aims to provide a self-fusion anti-corrosion adhesive tape, which solves the problem of easy delamination caused by high and low changes in external environmental temperature and ensures the anti-corrosion effect.

[0020] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] like Figure 1As shown, this embodiment provides a self-fusing anti-corrosion tape 100, including an adhesive layer and a base film 4 connected to the lower surface of the adhesive layer, the adhesive layer is rolled from solid rubber and liquid rubber, the base film 4 is rolled from solid rubber, the base film 4 has no self-adhesiveness, and the adhesive layer and the base film 4 are both made of the same solid rubber.

[0022] The adhesive layer and the base film 4 in this embodiment are made of the same material, so that the material difference between the two is small. Moreover, since they are made of the same material, the adhesive layer and the base film 4 can be blended to produce a self-fusion structure, which solves the problem of easy delamination caused by the high and low changes in the external ambient temperature after the pipeline anti-corrosion tape is wrapped, and ensures the anti-corrosion effect of the pipeline anti-corrosion tape.

[0023] Specifically, a plurality of adhesive layers are provided, and the plurality of adhesive layers are arranged in sequence from top to bottom, and the lower surface of the lowest adhesive layer is connected to the base film 4 .

[0024] Multiple adhesive layers all use the same solid rubber and the same liquid rubber, so that the multiple adhesive layers have the same two materials, so that the materials can blend between the adhesive layers to produce a self-fusion structure, making it difficult for the adhesive layers to be delaminated.

[0025] In this embodiment, the self-adhesiveness of the plurality of adhesive layers arranged sequentially from top to bottom decreases sequentially.

[0026] This embodiment further includes a release paper 5, which is disposed on the upper surface of the uppermost adhesive layer, and plays an anti-adhesion role.

[0027] Specifically, the number of the adhesive layers is 2 to 4.

[0028] In this specific embodiment, the number of adhesive layers is three, and the three adhesive layers arranged from top to bottom are named as a first adhesive layer 1, a second adhesive layer 2 and a third adhesive layer 3 respectively.

[0029] The first adhesive layer 1 is formed by rolling 45% of liquid rubber and 55% of solid rubber into a sheet, and is an adhesive layer with strong self-adhesiveness.

[0030] The second adhesive layer 2 is formed by rolling 30% of liquid rubber and 70% of solid rubber into a sheet, and is an adhesive layer with medium self-adhesiveness.

[0031] The third adhesive layer 3 is formed by rolling 15% of liquid rubber and 85% of solid rubber into a sheet, and is an adhesive layer with low self-adhesion.

[0032] The base film 4 is made of 100% solid rubber rolled into a sheet without any self-adhesiveness.

[0033] It can be seen that in this embodiment, the ratio of liquid rubber to solid rubber in the multiple adhesive layers and the base film 4 arranged from top to bottom gradually changes, so that the material difference between two adjacent layers changes less, further improving the anti-delamination effect.

[0034] In this specific embodiment, the solid rubber is butyl rubber. Solid block butyl rubber is a synthetic rubber, which is polymerized by isobutylene and isoprene under the action of Friedel-Craft catalyst. Its special polyisobutylene main chain and its extremely low unsaturation give it many excellent properties.

[0035] In this specific embodiment, the liquid rubber is polyisobutylene rubber. Liquid paste-like polyisobutylene is a polymer obtained by cationic polymerization of isobutylene, and its molecular weight can range from hundreds to millions. It is a typical saturated linear polymer. The main body of the molecular chain does not contain double bonds, and there is no long branch chain. Its structural unit is -(CH2-C(CH3)2)-, in which there is no asymmetric carbon atom, and the structural units are connected in a regular sequence from head to tail.

[0036] The butyl rubber and polyisobutylene rubber in this embodiment both belong to the isobutylene family and are homologous. The compatibility between the two is very good and the two can be mixed and self-fused.

[0037] The specific production process is: first make multiple adhesive layers and a base film 4, and then roll the multiple adhesive layers and the base film 4 arranged from top to bottom into an anti-corrosion adhesive sheet through a thermal composite process, cut the anti-corrosion adhesive sheet into self-fusion anti-corrosion tapes 100, isolate them with isolation paper 5 and roll them into a roll.

[0038] This specification uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core idea of ​​the utility model. At the same time, for those skilled in the art, according to the idea of ​​the utility model, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the utility model.

Claims

1. A self-fusion anti-corrosion tape, characterized in that: It comprises an adhesive layer and a base film connected to the lower surface of the adhesive layer, wherein the adhesive layer is formed by rolling solid rubber and liquid rubber, the base film is formed by rolling solid rubber, and both the adhesive layer and the base film are made of the same solid rubber.

2. The self-fusion anti-corrosion tape according to claim 1, characterized in that: The adhesive layer is provided in plurality, and the plurality of adhesive layers are arranged in sequence from top to bottom, and the lower surface of the lowest adhesive layer is connected to the base film.

3. The self-fusion anti-corrosion tape according to claim 2, characterized in that: The plurality of adhesive layers all adopt the same solid rubber and the same liquid rubber.

4. The self-fusion anti-corrosion tape according to claim 3, characterized in that: The self-adhesiveness of the plurality of adhesive layers arranged sequentially from top to bottom decreases sequentially.

5. The self-fusion anti-corrosion tape according to claim 2, characterized in that: It also includes release paper, which is arranged on the upper surface of the uppermost adhesive layer.

6. The self-fusion anti-corrosion tape according to claim 2, characterized in that: The number of the adhesive layers is 2 to 4.

7. The self-fusion anti-corrosion tape according to claim 3, characterized in that: The solid rubber is butyl rubber.

8. The self-fusion anti-corrosion tape according to claim 3, characterized in that: The liquid rubber is polyisobutylene rubber.

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