Flexible electronic device adhesive tape body paper, flexible electronic device adhesive tape paper and preparation method and application of flexible electronic device adhesive tape paper

Abstract

The invention provides flexible electronic device adhesive tape base paper, flexible electronic device adhesive tape paper and a preparation method and application of the flexible electronic device adhesive tape base paper and the flexible electronic device adhesive tape paper. The flexible electronic device adhesive tape body paper is prepared from the following raw materials in parts by weight: 70 to 80 parts of bleached softwood pulp, 0.1 to 1.0 part of sodium carboxymethyl cellulose, 10 to 15 parts of aramid nanofiber, 10 to 15 parts of ES fiber, 0.05 to 0.2 part of dispersing agent, 1.5 to 5.0 parts of wet strength agent, 0.5 to 1.0 part of anionic retention aid and 0.03 to 0.30 part of defoaming agent. Wherein the length of the ES fiber is 6mm; according to the invention, the plant fibers, the aramid nanofibers and the ES fibers are mixed, so that the prepared flexible electronic device adhesive tape body paper has the beneficial effects of high temperature resistance, high strength, good softness, good flexibility, good air permeability, high absorptivity and the like, and is suitable for the technical field of papermaking.

Description

Technical Field

[0001] The present application relates to the technical field of papermaking, and specifically, to a base paper for a flexible electronic device tape, a tape paper for a flexible electronic device, and a preparation method and application thereof. Background Art

[0002] Tape paper for electronic devices is mainly used for producing electronic taping. Electronic taping is a strip-shaped carrier for encapsulating electronic components, mainly used to facilitate the mass production and assembly of electronic components, improve production efficiency, and reduce errors in manual operations. Electronic taping is usually a tape made of plastic or other materials, with a series of chip packages on it. The chip packages are arranged at fixed intervals, and each chip package is connected to the tape through pins or pads, enabling it to be connected to other components (such as a circuit board).

[0003] Currently, electronic device tapes based on plastic substrates have sufficient strength but poor aging resistance, and plastic materials are non-degradable. Such electronic device tapes will have an adverse impact on the environment after being discarded. Tape papers with paper substrates are gradually expanding into the field of special tapes. However, when applied to the field of electronic devices, ordinary paper tapes have insufficient impregnation content, poor paper strength, low elongation, low flexibility, and poor tear resistance. When cut into narrow strips, the paper tapes are prone to tearing and breaking. When pasting electronic components, due to insufficient elongation, the tape at the pin is often prone to cracking, causing the electronic components to fall off. In addition, during the tape substrate and the tape processing process, a large amount of static electricity will be generated on the surface of the tape, and electronic components may be damaged occasionally when used for fixing electronic device pins.

[0004] Therefore, there is an urgent need for an electronic device tape paper with good strength, high elongation, good softness, high temperature resistance, and antistatic properties. Summary of the Invention

[0005] In order to solve one of the above technical defects, the present application provides a base paper for a flexible electronic device tape, a tape paper for a flexible electronic device, and a preparation method and application thereof.

[0006] According to the first aspect of the present application, there is provided a base paper for a flexible electronic device tape, comprising the following raw materials in parts by weight: 70 - 80 parts of bleached softwood pulp, 0.1 - 1.0 part of sodium carboxymethyl cellulose, 10 - 15 parts of aramid nanofibers, 10 - 15 parts of ES fibers, 0.05 - 0.2 part of a dispersant, 1.5 - 5.0 parts of a wet strength agent, 0.5 - 1.0 part of an anionic retention aid, 0.03 - 0.30 part of an antifoaming agent; wherein, the length of the ES fibers is 6 mm.

[0007] According to the second aspect of the present application, there is provided a preparation method for a tape paper for a flexible electronic device, comprising the following steps:

[0008] S10. Prepare the base paper for the flexible electronic device tape; the base paper for the flexible electronic device tape is the base paper for the flexible electronic device tape as described above.

[0009] S20. Immerse the prepared base paper for the flexible electronic device tape with an impregnating solution.

[0010] S30. Extrude the impregnated base paper for the flexible electronic device tape using an extrusion roller, and feed the extruded base paper for the flexible electronic device tape into an oven for drying; wherein, a conveyor aluminum tape is installed in the oven, and a non-stick Teflon material is sprayed on the surface of the aluminum tape, and the extruded base paper for the flexible electronic device tape is placed on the aluminum tape.

[0011] S40. Apply glue to the dried base paper for the flexible electronic device tape, and then perform a release treatment on the glue-applied base paper for the flexible electronic device tape using a release liquid to obtain the flexible electronic device tape paper; wherein, the glue application amount is controlled at 25 - 28 g / m 2 , and the release amount is controlled at 3.6 - 4.2 g / m 2 , and the concentration of the release liquid is 22 - 26%.

[0012] S50. Wind up and package the flexible electronic device tape paper for storage in the warehouse.

[0013] Preferably, in the S10, the preparation of the base paper for the flexible electronic device tape specifically includes:

[0014] S101. Pulverize bleached softwood pulp and sodium carboxymethyl cellulose with a pulper and then perform fibrillation beating to obtain pulp A; the beating degree is controlled at 22 - 28°SR, and the wet weight is controlled at 12 - 14 g.

[0015] S102. Send pulp A to a mixing tank, and add aramid nanofibers, ES fibers, a dispersant, and a wet strength agent to pulp A, and mix evenly to obtain pulp B.

[0016] S103. Send pulp B to the paper machine headbox system, and add an anionic retention aid and an antifoaming agent to pulp B to obtain pulp C.

[0017] S104. Dilute pulp C, and perform a forming treatment on the diluted pulp C to obtain a wet paper sheet; wherein, the forming concentration of pulp C is controlled at 0.08 - 0.18%.

[0018] S105. Press the wet paper sheet using a creping dryer, and perform creping, drying, curling, and rewinding treatments on the pressed wet paper sheet to obtain the base paper for the flexible electronic device tape; wherein, the steam inlet pressure of the creping dryer is controlled at 45 - 65 KPa, the dryness after pressing is 50 - 60%, and the creping temperature of the wet paper sheet is 55 - 65°C.

[0019] Preferably, the basis weight of the base paper of the flexible electronic device tape is 48 ± 1 g / m 2 , and the longitudinal elongation is 16 ± 1%.

[0020] Preferably, the impregnating solution comprises the following raw materials in parts by weight: 90 - 95 parts of latex, 3 - 5 parts of a waterborne polyurethane high-temperature resistant additive, and 2 - 5 parts of a permanent antistatic agent; the release liquid is a water-resistant release liquid.

[0021] Preferably, the latex is an emulsion with a glass transition temperature lower than -18°C; the permanent antistatic agent is ethoxylated alkylamine or ethoxylated laurylamide.

[0022] Preferably, the dispersant is a carboxylate dispersant or a modified starch dispersant; the wet strength agent is polyamide polyepichlorohydrin; the anionic retention aid is anionic polyacrylamide; the defoamer is one or more of high-carbon alcohol fatty acid ester complexes, polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxyethylene polyoxypropylene alkanolamine ether, polyoxypropylene glycerol ether, and polyoxypropylene polyoxyethylene glycerol ether.

[0023] According to the third aspect of the present application, there is provided a flexible electronic device tape paper, which is prepared according to the preparation method described in any one of the foregoing.

[0024] Preferably, the basis weight of the flexible electronic device tape paper is 77 ± 1 g / m 2 , and the longitudinal elongation is 14 ± 1%.

[0025] According to the fourth aspect of the present application, there is provided an electronic tape, which is made of the flexible electronic device tape paper described above.

[0026] The base paper of the flexible electronic device tape provided by this application is made by mixing plant fibers, aramid nanofibers, and ES fibers. The obtained base paper of the flexible electronic device tape has the effects of high temperature resistance, high strength, good flexibility, good air permeability, and high absorbency. Moreover, the electronic device tape paper further processed from the base paper of the electronic device tape has the same effects. Among them, sodium carboxymethylcellulose is disintegrated together with bleached softwood pulp, which is beneficial to the swelling and fibrillation of the wood pulp; aramid nanofibers not only have good temperature and insulation resistance, improving the temperature and insulation resistance of the base paper of the electronic device tape, but also can effectively improve the strength and toughness of the paper. At the same time, mixing 6mm long ES fibers can greatly improve the air permeability and softness of the paper and maintain a high bonding strength with plant fibers, avoiding the problems of poor bonding force between chemical fibers and plant fibers and easy falling of chemical fibers during impregnation; the dispersant can, on the one hand, solve the problems of uneven mixing of low consistency bleached softwood pulp with aramid nanofibers and ES fibers and poor paper formation, and on the other hand, can effectively improve the air permeability and water absorbency of the paper; the wet strength agent can provide sufficient wet strength for the paper to ensure that the paper will not be broken during impregnation processing; the anionic retention aid can not only improve the retention of the wet strength agent and fines, but also balance the charge of the papermaking water system to maintain the stability of the paper properties; the defoamer can effectively inhibit the generation of foam during the operation of the papermaking system and eliminate the foam that has been generated in the papermaking water system, making the paper have better uniformity and improving the quality of the paper.

[0027] Other features and advantages of the present invention will be described in the following specification, and, in part, will be obvious from the specification, or can be understood by implementing the present invention. The objectives and other advantages of the present invention can be realized and obtained by the content written in the specification and claims. Detailed embodiments

[0028] In order to make the technical solutions and advantages in this application clearer and more understandable, the following further details this application in combination with exemplary embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, rather than an exhaustive list of all embodiments. It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other.

[0029] Unless otherwise specified, the raw materials used in the embodiments are all commercially available raw materials. The methods in the following embodiments are all conventional methods in the art unless otherwise specified.

[0030] Regarding some problems existing in the prior art:

[0031] The present application provides a base paper for a flexible electronic device tape, which comprises the following raw materials in parts by weight: 70 - 80 parts of bleached softwood pulp, 0.1 - 1.0 part of sodium carboxymethyl cellulose, 10 - 15 parts of aramid nanofibers, 10 - 15 parts of ES fibers, 0.05 - 0.2 part of a dispersant, 1.5 - 5.0 parts of a wet strength agent, 0.5 - 1.0 part of an anionic retention aid, and 0.03 - 0.30 part of an antifoaming agent; wherein, the length of the ES fibers is 6 mm.

[0032] The base paper for the flexible electronic device tape provided by the present application is prepared by mixing plant fibers with aramid nanofibers and ES fibers. The prepared base paper for the flexible electronic device tape has the effects of high temperature resistance, high strength, good softness, good flexibility, good air permeability, high absorbency, etc. Moreover, the electronic device tape paper further processed from the base paper for the electronic device tape has the same effects. Among them, sodium carboxymethyl cellulose is disintegrated together with the bleached softwood pulp, which is beneficial to the swelling and fibrillation of the wood pulp; aramid nanofibers not only have good temperature resistance and insulation performance, improving the temperature resistance and insulation of the base paper for the flexible electronic device tape, but also can effectively improve the strength and toughness of the paper. At the same time, the mixing of 6 - mm - long ES fibers can greatly improve the air permeability and softness of the paper and maintain a high bonding strength with the plant fibers, avoiding the problems of poor bonding between chemical fibers and plant fibers and easy shedding of chemical fibers during impregnation; on the one hand, the dispersant can solve the problems of uneven mixing of low - consistency bleached softwood pulp with aramid nanofibers and ES fibers and poor formation of the paper, and on the other hand, it can effectively improve the air permeability and water absorbency of the paper; the wet strength agent can provide sufficient wet strength for the paper to ensure that the paper will not be broken during impregnation processing; the anionic retention aid can not only improve the retention of the wet strength agent and fines, but also balance the charge of the papermaking water system to keep the paper properties stable; the antifoaming agent can effectively inhibit the generation of foam during the operation of the papermaking system and eliminate the foam that has been generated in the papermaking water system, making the paper have better formation and improving the quality of the paper.

[0033] The present application also provides a preparation method for a flexible electronic device tape paper, which comprises the following steps:

[0034] S10. Prepare the base paper for the flexible electronic device tape; the base paper for the flexible electronic device tape is the base paper for the flexible electronic device tape as described above;

[0035] S20. Impregnate the prepared base paper for the flexible electronic device tape with an impregnating solution;

[0036] S30. Use a squeezing roller to squeeze the impregnated base paper for the flexible electronic device tape, and send the squeezed base paper for the flexible electronic device tape into an oven for drying; wherein, a conveyor aluminum belt is installed in the oven, the surface of the aluminum belt is sprayed with a non - stick Teflon material, and the squeezed base paper for the flexible electronic device tape is placed on the aluminum belt.

[0037] S40. Apply sizing treatment to the dried base paper of the flexible electronic device tape, and then perform release treatment on the sized base paper of the flexible electronic device tape with a release liquid to obtain the base paper of the flexible electronic device tape; wherein, the sizing amount is controlled at 25 - 28 g / m 2 , and the release amount is controlled at 3.6 - 4.2 g / m 2 , and the concentration of the release liquid is 22 - 26%;

[0038] S50. Wind up the base paper of the flexible electronic device tape and package it for storage in the warehouse.

[0039] Furthermore, in S40, perform release treatment on the front side of the base paper of the flexible electronic device tape.

[0040] Furthermore, in S10, the preparation of the base paper of the flexible electronic device tape specifically includes:

[0041] S101. Pulverize bleached softwood pulp and sodium carboxymethyl cellulose with a pulper and then perform fibrillation beating to obtain pulp A; the beating degree is controlled at 22 - 28°SR, and the wet weight is controlled at 12 - 14 g;

[0042] S102. Send pulp A to a mixing tank, and add aramid nanofibers, ES fibers, a dispersant, and a wet strength agent to pulp A, and mix evenly to obtain pulp B;

[0043] S103. Send pulp B to the paper machine headbox system, and add an anionic retention aid and an antifoaming agent to pulp B to obtain pulp C;

[0044] S104. Dilute pulp C, and perform wire forming treatment on the diluted pulp C to obtain a wet paper sheet; wherein, the wire forming concentration of pulp C is controlled at 0.08 - 0.18%;

[0045] S105. Use a wrinkling dryer to perform pressing treatment on the wet paper sheet, and perform wrinkling, drying, curling, and rewinding treatment on the pressed wet paper sheet to obtain the base paper of the flexible electronic device tape; wherein, the steam inlet pressure of the wrinkling dryer is controlled at 45 - 65 KPa, the dryness after pressing is 50 - 60%, and the wrinkling temperature of the wet paper sheet is 55 - 65°C.

[0046] Specifically, in S101, use a cylindrical refiner for fibrillation beating, and avoid fiber cutting during the beating process to ensure that a higher elongation rate can be obtained in the wrinkling process.

[0047] Specifically, in S105, use a wrinkling blade to wrinkle the wet paper sheet.

[0048] More specifically, the wrinkling blade is a ceramic blade.

[0049] Specifically, the first group of drying cylinders of the wrinkled drying cylinder adopts the single-hanging form of Wacker cylinders to ensure that the wet paper web runs completely attached to the dry wire before the dryness of the wet paper web reaches 80%, avoiding the reduction of the elongation rate caused by the stretching of the wet paper web after wrinkling.

[0050] Further, the basis weight of the base paper of the flexible electronic device tape is 48 ± 1 g / m 2 , and the longitudinal elongation rate is 16 ± 1%.

[0051] Further, the impregnating solution comprises the following raw materials in parts by weight: 90 - 95 parts of latex, 3 - 5 parts of waterborne polyurethane high-temperature resistant additive, and 2 - 5 parts of permanent antistatic agent; wherein, the waterborne polyurethane high-temperature resistant additive can effectively improve the temperature resistance of the latex, ensure that the performance of the impregnating solution is not damaged during the high-temperature baking process of the base paper of the flexible electronic device tape, and endow the flexible electronic device tape paper with sufficient strength and flexibility after being made; the permanent antistatic agent can maintain the antistatic effect in the base paper of the flexible electronic device tape for a long time, avoiding a large amount of static electricity remaining on the flexible electronic device tape paper after being made.

[0052] The release liquid is a water-resistant release liquid mainly composed of vinyl acetate or modified acrylic resin.

[0053] Specifically, the latex is an emulsion with a glass transition temperature lower than -18°C.

[0054] More specifically, the latex is one or more of styrene-butadiene latex, acrylic latex, and styrene-acrylic latex; the permanent antistatic agent is ethoxylated alkylamine or ethoxylated laurylamide.

[0055] The base paper of the flexible electronic device tape prepared in this application is impregnated and processed with an impregnating solution containing an antistatic agent, then dried by aluminum tape conveyance, and then the front surface of the paper is subjected to a release treatment to obtain a flexible electronic device tape paper with high anti-seepage property, good toughness, high strength, and strong antistatic ability. Among them, the base paper of the flexible electronic device tape has high air permeability and good absorbency. When it is impregnated, the latex can fully enter the gaps between the fibers; a squeezing roller is used to squeeze the impregnated base paper of the flexible electronic device tape to squeeze off the excess latex on the surface of the base paper; the impregnated base paper of the flexible electronic device tape is placed on the aluminum tape and dried in an oven to avoid large tension on the base paper of the flexible electronic device tape in the oven, resulting in serious loss of the paper elongation rate; the release treatment of the base paper of the flexible electronic device tape can further improve the water resistance of the flexible electronic device tape paper and obtain an appropriate release force at the same time.

[0056] Further, the dispersant is a carboxylate dispersant or a modified starch dispersant.

[0057] Further, the wet strength agent is polyamide polyepichlorohydrin.

[0058] Further, the anionic retention aid is anionic polyacrylamide.

[0059] Further, the defoamer is one or more of high-carbon alcohol fatty acid ester complexes, polyoxyethylene polyoxypropylene pentaerythritol ethers, polyoxyethylene polyoxypropylene alkanolamine ethers, polyoxypropylene glycerol ethers, and polyoxypropylene polyoxyethylene glycerol ethers.

[0060] Examples 1 to 3 were respectively prepared with the flexible electronic device tape base paper according to the content of each raw material and its preparation conditions specified in Table 1 below.

[0061] Table 1

[0062] Contents of each component and preparation conditions Example 1 Example 2 Example 3 Bleached softwood pulp / part 70 75 80 Sodium carboxymethyl cellulose / part 0.2 0.5 1.0 Aramid nanofibers / part 15 12 10 ES fiber / part 15 13 10 Dispersant / part 0.2 0.1 0.05 Wet strength agent / part 5.0 3.0 2.0 Anionic retention aid / part 0.6 0.8 1.0 Defoamer / part 0.2 0.15 0.05 Beating degree / °SR 26 25 24 Wet weight / g 12 13 14 Furnish consistency / % 0.08 0.12 0.18 Wrinkling dryer pressure / KPa 45-55 50-60 55-65 Dryness after pressing / % 50-55 53-58 55-60 Wrinkling temperature of wet paper sheet / ℃ 55 60 65

[0063] Examples 4 to 6 were respectively further processed on the base paper according to the content of each component and the preparation conditions specified in Table 2 below to prepare the corresponding flexible electronic device tape paper, and the base papers in Examples 4 to 6 were respectively the flexible electronic device tape base papers prepared in Examples 1 to 3.

[0064] Table 2

[0065] Contents of each component and preparation conditions Example 4 Example 5 Example 6 Latex / part 95 93 90 Waterborne polyurethane high-temperature resistant additive / part 3 4 5 Permanent antistatic agent / part 2 3 5 Release liquid concentration / % 12 12 12 <![CDATA[Coating amount / g / m 2 > 25 25 25 <![CDATA[Release amount / g / m 2 > 4 4 4

[0066] To better understand the essence of this application, the flexible electronic device tape base papers prepared in Examples 1 to 3 and the flexible electronic device tape papers prepared in Examples 4 to 6 were subjected to performance tests, and the performance tests are shown in Table 3 and Table 4 respectively.

[0067] Table 3

[0068]

[0069] As can be seen from Table 3, the basis weight of the flexible electronic device tape base paper prepared in this application is 48 g / m 2 , the longitudinal elongation rate is 16%, the longitudinal tensile strength is 2.2 - 2.4, and the air permeability is 130 - 180 μm / (Pa·S), indicating that the prepared flexible electronic device tape base paper has high strength, good softness, good flexibility and high air permeability, and with the increase of bleached softwood pulp, the longitudinal tensile strength increases, and with the increase of ES fiber, the air permeability increases.

[0070] Table 4

[0071]

[0072] The latex of the flexible electronic device tape prepared in this application penetrates evenly and has a sufficient sizing amount, providing sufficient toughness and strength for the paper. During the paper production process, the wet paper sheet is prevented from being stretched multiple times, so that the elongation rate of the paper after release can be maintained at 13-15%. As shown in Table 4, the basis weight of the flexible electronic device tape paper is 77 g / m 2 , the longitudinal elongation rate is 14%, and the longitudinal tensile strength is 4.0-4.2 kN / m. In addition, the softness of the flexible electronic device tape paper was also detected in this application. The longitudinal softness is 638-721 mN, and the transverse softness is 712-796 mN, indicating that the transverse softness of the flexible electronic device tape paper is better than its longitudinal softness.

[0073] This application also provides an electronic tape made of the above-mentioned flexible electronic device tape paper. The electronic tape has properties such as good flexibility, high strength, high temperature resistance, and antistatic properties, which are superior to imported products.

[0074] Although the preferred embodiments of this application have been described, those skilled in the art can make additional changes and modifications to these embodiments once they know the basic creative concept. Therefore, the appended claims are intended to be construed to include the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0075] Obviously, those skilled in the art can make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application is also intended to include these changes and modifications.

Claims

1. A flexible electronic device tape base paper, characterized in that: The invention comprises the following raw materials in parts by weight: 70-80 parts of bleached softwood pulp, 0.1-1.0 parts of sodium carboxymethyl cellulose, 10-15 parts of aramid nanofibers, 10-15 parts of ES fibers, 0.05-0.2 parts of dispersant, 1.5-5.0 parts of wet strength agent, 0.5-1.0 parts of anionic retention aid, and 0.03-0.30 parts of defoamer; The length of the ES fiber is 6 mm.

2. A method for preparing a flexible electronic device adhesive tape, characterized in that: The following steps are involved: S10, preparing a base paper for a flexible electronic device tape; the base paper for a flexible electronic device tape is the base paper for a flexible electronic device tape according to claim 1; S20, impregnating the prepared flexible electronic device tape base paper with an impregnation liquid; S30, using a rubber squeezing roller to squeeze the impregnated flexible electronic device tape base paper, and sending the squeezed flexible electronic device tape base paper into an oven for drying; wherein a conveying aluminum belt is installed in the oven, and a non-stick Teflon material is sprayed on the surface of the aluminum belt, and the squeezed flexible electronic device tape base paper is placed on the aluminum belt; S40, gluing the dried flexible electronic device tape base paper, and then using a release liquid to release the glued flexible electronic device tape base paper to obtain a flexible electronic device tape paper; wherein the glue amount is controlled at 25-28g / m 2 , release weight is controlled at 3.6-4.2g / m 2 , the concentration of release fluid is 22-26%; S50, rolling up and packaging the flexible electronic device tape for storage.

3. The method for preparing the flexible electronic device adhesive tape according to claim 2, characterized in that: In the S10, preparing the flexible electronic device tape base paper specifically includes: S101, crushing bleached softwood pulp and sodium carboxymethyl cellulose in a pulper and then beating the pulp to obtain pulp A; the beating degree is controlled at 22-28°SR, and the wet weight is controlled at 12-14g; S102, sending slurry A to a mixing tank, adding aramid nanofibers, ES fibers, a dispersant and a wet strength agent to slurry A, and mixing them evenly to obtain slurry B; S103, delivering slurry B to the paper machine approach system, and adding anionic retention aid and defoamer to slurry B to obtain slurry C; S104, diluting the slurry C, and subjecting the diluted slurry C to a web-surface treatment to obtain a wet paper sheet; wherein the web-surface concentration of the slurry C is controlled at 0.08-0.18%; S105. The wet paper sheets are pressed by a corrugating drying cylinder, and the pressed wet paper sheets are corrugated, dried, curled and rewound to obtain base paper for flexible electronic device tapes; wherein the steam inlet pressure of the corrugating drying cylinder is controlled at 45-65 KPa, the outlet dryness is 50-60%, and the corrugating temperature of the wet paper sheets is 55-65°C.

4. The method for preparing the flexible electronic device adhesive tape according to claim 3, characterized in that: The basis weight of the flexible electronic device tape base paper is 48±1 g / m 2 , the longitudinal elongation is 16±1%.

5. The method for preparing the flexible electronic device adhesive tape according to claim 2, characterized in that: The impregnation liquid comprises the following raw materials in parts by weight: 90-95 parts of latex, 3-5 parts of waterborne polyurethane high temperature resistant additive and 2-5 parts of permanent antistatic agent; The release fluid is a water-resistant release fluid.

6. The method for preparing the flexible electronic device adhesive tape according to claim 5, characterized in that: The latex is an emulsion with a glass transition temperature lower than -18°C; The permanent antistatic agent is ethoxylated alkylamine or ethoxylated lauryl amide.

7. The method for preparing the flexible electronic device adhesive tape according to claim 2, characterized in that: The dispersant is a carboxylate dispersant or a modified starch dispersant; The wet strength agent is polyamide polyepichlorohydrin; The anionic retention aid is anionic polyacrylamide; The defoaming agent is one or more of a high-carbon alcohol fatty acid ester complex, polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxyethylene polyoxypropanolamine ether, polyoxypropylene glycerol ether and polyoxypropylene polyoxyethylene glycerol ether.

8. A flexible electronic device adhesive tape, characterized in that: Prepared according to the preparation method described in any one of claims 2 to 7.

9. The flexible electronic device adhesive tape according to claim 8, characterized in that: The basis weight of the flexible electronic device adhesive tape is 77±1 g / m 2 , the longitudinal elongation is 14±1%.

10. An electronic braid, characterized in that: Made from the flexible electronic device tape according to claim 9.

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