CN212864641U

CN212864641U - High-temperature-resistant adhesive tape for high-temperature environment

Info

Publication number: CN212864641U
Application number: CN202021152708.6U
Authority: CN
Inventors: 戴锦昌; 林锦蕊; 耿超伟; 戴亚敏; 戴三敏; 戴小敏; 戴四敏; 谢东
Original assignee: Dongguan Xinmei Electronic Materials Co Ltd
Current assignee: Dongguan Xinmei Electronic Materials Co Ltd
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2021-04-02
Anticipated expiration: 2030-06-19

Abstract

The utility model discloses a high temperature resistant adhesive tape for high temperature environment, which comprises an adhesive tape body, wherein the adhesive tape body is provided with a release adhesive layer, a polyimide film, a glass fiber layer, a pressure sensitive adhesive layer, an acrylic adhesive layer, an identification seal and a adhesive frame; the rubber frame is connected with the rubber barrel. The sticky tape body has fine high temperature resistance, and the wearing layer is located sticky tape body surface and makes sticky tape body use durability higher, easily tears the line simultaneously and is convenient for tear fast when using sticky tape body, improves sticky tape availability factor, and the substrate layer material is the polyimide film, makes sticky tape body high temperature resistance good.

Description

High-temperature-resistant adhesive tape for high-temperature environment

Technical Field

The utility model relates to a high temperature resistant sticky tape field specifically is a high temperature resistant sticky tape for high temperature environment.

Background

The rapid development of the information electronic industry in China provides a good market environment for the rapid development of the Printed Circuit Board (PCB) industry. The continuous increase of the output of electronic products such as electronic communication equipment, electronic computers, household appliances and the like provides strong power for the rapid increase of the printed circuit board industry. The printed circuit board can be divided into a tin-spraying board, a gold-melting board, a silver-melting board, an OSP board and the like in the production and manufacturing process. Wherein the tin-sprayed board is a common type of PCB board. Because the surface of the circuit board after tin spraying and the tin paste are similar substances, the welding strength and reliability are good, the processing cost is low, the copper surface has excellent anti-oxidation effect and is favored by the industry, an adhesive product is generally used as a protection medium in the industry at present, but because of the difference of glue formula and manufacturing process, the types of high-temperature resistant protection adhesive tape products on the market are also many, but the problem of adhesive residue caused by insufficient temperature resistance always occurs, so that rework and even plate scrapping are caused, the existing technology uses peelable blue glue or high-temperature resistant tea glue, and the peelable blue glue and the high-temperature resistant tea glue have obvious quality problems caused by mismatching of processing characteristics, for example, the peelable blue glue cannot be integrally torn off when being attacked by high temperature, and even fragments of the glue are blocked in gaps of gold fingers to cause badness; high temperature resistant tawny glues because whole thin partially, leads to the membrane to store certain internal stress after the roll extrusion, leads to the tin penetration even to drop when high temperature or wind-blowing, causes the plate to scrap, for solving the problem, provide a high temperature resistant adhesive tape for high temperature environment.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high temperature resistant adhesive tape for high temperature environment in order to solve the problem that the existing adhesive tape is not high temperature resistant.

The utility model achieves the above purpose through the following technical proposal,

a high-temperature-resistant adhesive tape for a high-temperature environment comprises an adhesive tape body, wherein the adhesive tape body is provided with a release adhesive layer, a polyimide film, a glass fiber layer, a pressure-sensitive adhesive layer, an acrylic adhesive layer, an identification seal and a adhesive frame; the rubber frame is connected with the rubber barrel.

Particularly, the width of the left white arranged on the release glue layer is 0.8-1 mm.

In particular, the high temperature resistant adhesive tape for high temperature environment is characterized in that: the density of the glass fiber layer is 2.45g/mm³。

In particular, the acrylic adhesive layer is a gray transparent adhesive layer with the thickness of 0.2 mm.

In particular, the thickness of the pressure-sensitive adhesive layer is 23 μm to 35 μm.

Particularly, the rubber frame is provided with a V-shaped notch.

The utility model has the advantages that:

(1) the utility model has voltage breakdown resistance, can bear the voltage range of 5-50 kw, does not influence the maintenance function, and ensures the production efficiency of the product;

(2) the utility model bears the temperature between 70 and 320 ℃, has multiple purposes, does not remain adhesive, and has special temperature resistance of the high-temperature adhesive tape;

(3) the acid and alkali resistance can be realized, and the acid and alkali environment can be maintained;

drawings

FIG. 1 is a schematic view of the adhesive tape of the present invention;

FIG. 2 is a schematic view of the structure of the adhesive tape body of the present invention;

in the figure: 1. a release glue layer; 2. a polyimide film; 3. a glass fiber layer; 4. a pressure sensitive adhesive layer; 5. an acrylic adhesive layer; 6. identifying a seal; 7. a rubber frame; 8. a rubber cylinder; 9. and a V-shaped opening.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1, a high temperature resistant adhesive tape for high temperature environment comprises an adhesive tape body, wherein the adhesive tape body is provided with a release adhesive layer, a polyimide film, a glass fiber layer, a pressure sensitive adhesive layer, an acrylic adhesive layer, an identification seal and a adhesive frame; the rubber frame is connected with the rubber barrel.

The polyimide film 2 is yellow and transparent after being stretched and subjected to high-temperature imidization, has a relative density of 1.3-1.45, has outstanding high-temperature resistance and radiation resistance, can be used in air at 250-280 ℃ for a long time, and has stable chemical and physical properties; the glass fiber layer 3 is an inorganic non-metallic material with excellent performance, is formed by taking six kinds of ores of pyrophyllite, quartz sand, limestone, dolomite, borocalcite and Boramesite as raw materials, melting and drawing the raw materials at high temperature into cloth, and has the diameter as small as several microns; the pressure-sensitive adhesive layer 4 enables the adhesive to immediately adhere to the smooth surface of any adherend without contaminating the surface if the adherend surface is damaged; the wear resistance of the acrylic adhesive layer 5 is close to that of an aluminum material, in addition, the acrylic adhesive layer is not as brittle as a glass fiber material, the component is polymeric methyl, the acrylic adhesive layer is insoluble in water, and the waterproof performance is strong.

It should be noted that the release adhesive layer 1 is composed of three layers, the first layer: base paper; a second layer: film spraying; and a third layer: a silicone oil.

The glass fiber layer 3AR glass fibers are one hundred percent inorganic fibers.

It should be noted that the pressure-sensitive adhesive layer 4 can be introduced with various polar genes by copolymerization, and thus has strong adhesive ability.

In the embodiment shown in fig. 2, in the rubber frame 7, thermosetting plastic is selected as a housing material, and minerals are mainly added to enhance the properties of the rubber frame 7, such as shrinkage control, chemical resistance, shock resistance, insulation, heat insulation or cost reduction, the rubber frame 7 is connected with the rubber cylinder 8, the material of the rubber frame is consistent with that of the rubber frame 7, the diameter of the rubber frame is 5cm, the height of the rubber frame is 8cm, the release adhesive layer 1 can stick the prepreg, but the prepreg and the adhesive layer are easy to separate, the adhesive tape is provided with the identification seal 6, the identification seal is mainly used for opening and anti-counterfeiting of the adhesive tape, and the rubber cylinder 8 is connected in the rubber frame 7.

The working principle is as follows: the adhesive tape used in a high-temperature operation environment is generally used for fixing, printing circuit board and high-temperature treatment shielding in the processes of paint spraying, baking and leather processing, coating shielding and electronic part manufacturing at the temperature of 120-260 ℃, the release adhesive layer 1 is used for preventing the prepreg from being polluted and providing convenience for scribing on the surface, the other function is used for preventing the transverse cracking of the unidirectional prepreg, the coating amount of solvent-free silicone oil is 0.80-1.30 g/square meter, the base paper can be covered firmly at higher coating amount, the uniform distribution of the silicone oil is ensured, the polyimide film which is a high-temperature resistant insulating material and is specially treated by the polyimide film 2 is taken as a base material, the adhesive tape has excellent insulating property, wear resistance and acid and alkali resistance, can resist the high temperature of 300 ℃ per 10 minutes, can be used for a long time at the temperature of 180 ℃, can be cut into amber colors with different depths at will, the polyimide film 2 has excellent electrical performance, high insulation, high temperature resistance, low temperature resistance, acid and alkali resistance, low electrolysis, good mechanical performance, friction resistance and tear resistance, the glass fiber layer 3 has no fixed melting point, generally, the softening point is 500-750 ℃, the boiling point is 1000 ℃, the density is 2.4-2.76 g/cm3, the polyimide film is excellent in electrical insulation performance and is a high-grade electrical insulation material, and the pressure-sensitive adhesive layer 4 and the acrylic adhesive layer 5 are viscoelastic bodies which have liquid viscosity and solid elastic properties at the same time; the viscoelastic body has the influence factors and properties of bearing both the contact process and the damage process of bonding.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A high temperature resistant adhesive tape for high temperature environment, which is characterized in that: the adhesive tape comprises an adhesive tape body, wherein the adhesive tape body is provided with a release adhesive layer (1), a polyimide film (2), a glass fiber layer (3), a pressure-sensitive adhesive layer (4), an acrylic adhesive layer (5), an identification seal (6) and a adhesive frame (7); the rubber frame (7) is connected with the rubber cylinder (8).

2. The high temperature resistant adhesive tape for high temperature environment according to claim 1, wherein: the width of the left white is 0.8-1mm when the release adhesive layer (1) is arranged.

3. The high temperature resistant adhesive tape for high temperature environment according to claim 1, wherein: the density of the glass fiber layer (3) is 2.45g/mm³。

4. The high temperature resistant adhesive tape for high temperature environment according to claim 1, wherein: the acrylic adhesive layer (5) is a gray transparent adhesive layer with the thickness of 0.2 mm.

5. The high temperature resistant adhesive tape for high temperature environment according to claim 1, wherein: the thickness of the pressure-sensitive adhesive layer (4) is 23-35 μm.

6. The high temperature resistant adhesive tape for high temperature environment according to claim 1, wherein: the rubber frame (7) is provided with a V-shaped notch (9).