CN214693971U

CN214693971U - Easily-stripped reworkable double-sided adhesive tape

Info

Publication number: CN214693971U
Application number: CN202120217966.6U
Authority: CN
Inventors: 于洋; 程国虎; 许显成; 杨林; 陈仁秀; 代申强
Original assignee: Sichuan Yuxi New Material Co ltd
Current assignee: Sichuan Yuxi New Material Co ltd
Priority date: 2021-01-26
Filing date: 2021-01-26
Publication date: 2021-11-12
Anticipated expiration: 2031-01-26

Abstract

The utility model discloses an easy peeling can heavily be good at double-sided sticky tape belongs to sticky tape technical field, including the substrate layer, the substrate layer one side scribbles in proper order can heavily be good at pressure sensitive adhesive layer and leaves type rete one, and the substrate layer another side scribbles in proper order and glues pressure sensitive adhesive layer and leave type rete two. The double-sided adhesive tape adopts a five-layer structure design, simultaneously has reworkability, high viscosity and easy peelability, and can effectively solve the problems of poor repeeling property, small adhesive force and narrow reworkable surface tack range of the conventional double-sided adhesive tape.

Description

Easily-stripped reworkable double-sided adhesive tape

Technical Field

The utility model relates to an adhesive tape technical field, concretely relates to easy-peeling reworkable easy double-sided adhesive tape.

Background

The reworked double-sided adhesive tape is mainly applied to the manufacturing process and the assembling process of parts of electronic terminal products. Conventional double faced adhesive tape is in processing procedure and equipment process, in one side fixed laminating in support surface back, the opposite side does not have fine repeelability, lead to being fixed in its little electronic components can't be in better fixed while, can be easily plucked fast and guarantee that there is not the remaining of gluing on the electronic component, so lead to the sticky tape to use once, easily cause the cull pollution to electronic component, increase the washing of product, reduce work efficiency, and there is the problem that the adhesive force is little and can rework the face viscidity scope is narrow. Therefore, it is very significant to provide an easily peelable reworkable and easily-double-sided adhesive tape.

SUMMERY OF THE UTILITY MODEL

In view of the above, the utility model aims at providing an easy-to-strip reworkable easy double-sided tape, can effectively solve the problems that the repeeling property is poor, the adhesive force is small and the reworkable surface viscosity range is narrow that conventional double-sided tape exists.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the utility model provides an easy double-sided tape of reworking of easy peeling, includes the substrate layer, and substrate layer one side scribbles in proper order can rework pressure sensitive adhesive layer and leaves type rete one, and the substrate layer another side scribbles in proper order highly glues pressure sensitive adhesive layer and leaves type rete two.

Further, the thickness of the substrate layer is 12-125um, preferably 50 um.

Further, the reworkable pressure sensitive adhesive layer has a thickness of 10-100um, preferably 25 um.

Further, the thickness of the high-viscosity pressure-sensitive adhesive layer is 10 to 100um, preferably 25 um.

Further, the thickness of the release film layer is 25-125um, preferably 75 um.

Further, the thickness of the second release film layer is 25-125um, preferably 25 um.

Further, the material of the substrate layer is polyethylene terephthalate (PET), polymethyl methacrylate (PMMA) or Triacetylcellulose (TAC).

Furthermore, the first release film layer and the second release film layer are both PET organosilicon release films.

Further, the reworkable pressure-sensitive adhesive layer comprises the following components in parts by weight: 90-110 parts of acrylic resin, 0.5-5 parts of isocyanate curing agent, 0.01-5 parts of epoxy curing agent, 0-10 parts of tackifying resin and 10-50 parts of solvent.

Further, the high-viscosity pressure-sensitive adhesive layer comprises the following components in parts by weight: 85-110 parts of acrylic resin, 0.5-2 parts of isocyanate curing agent, 5-30 parts of tackifying resin and 10-50 parts of solvent.

The utility model has the advantages that: the utility model provides an easy peeling double sticky tape capable of reworking, which adopts five-layer structural design and simultaneously takes into account reworkability, high viscosity and easy peeling. One side of the substrate layer is sequentially coated with a reworkable pressure-sensitive adhesive layer and a release film layer I to prepare the reworkable side of the double-sided adhesive tape. When the electronic component reworking face is used, the reworkable face faces upwards, the electronic component can be conveyed and fixed in the assembling process of an electronic product, the electronic component is attached to the reworkable face and can be easily and quickly taken away when the electronic component is not required to be fixed, the electronic component cannot be polluted by an adhesive tape, and meanwhile, the reworkable face can be reused due to the extremely high stripping performance of the reworkable face, so that the working efficiency is improved. The other side of the substrate layer is sequentially coated with a high-viscosity pressure-sensitive adhesive layer and a release film layer II to prepare a high-viscosity side of the double-sided adhesive tape, the high-viscosity side can be perfectly attached to the supporting surface, extremely high viscosity holding is ensured, and the adhesive tape is prevented from moving and displacing with the attached side. The reworkable surface and the high-viscosity surface are matched for use, so that the high viscosity is kept when the electronic element is attached and fixed for multiple times, and the high removability is ensured; the easily-peeled reworkable easy-to-double-sided adhesive tape provided by the invention has the advantages that the double-sided adhesive property is different, and the cut double-sided adhesive property can be adjusted according to specific requirements: the adhesive can be reworked, can be repeatedly peeled and adhered for many times, does not have adhesive residue and residue on an adhered object under the condition of not needing heating and quick peeling (30m/min), has adjustable adhesive range and wide adhesive range, and can be 10-1200gf/25 mm; the high-viscosity surface has strong viscosity, good fitting property and long-lasting viscosity, and the viscosity can reach more than 2000gf/25mm according to formula adjustment.

Drawings

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

wherein 1, a release film layer I; 2. the pressure sensitive adhesive layer can be reworked; 3. a substrate layer; 4. a high-viscosity pressure-sensitive adhesive layer; 5. and a second release film layer.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.

Example 1

The embodiment 1 provides an easily-peeled reworkable easy-double-sided tape, and as shown in fig. 1, the easily-peeled reworkable easy-double-sided tape comprises a substrate layer, wherein one side of the substrate layer is sequentially coated with a reworkable pressure-sensitive adhesive layer and a release film layer I, and the other side of the substrate layer is sequentially coated with a high-viscosity pressure-sensitive adhesive layer and a release film layer II;

wherein, the substrate layer is polyethylene terephthalate, and the thickness of the substrate layer is 50 um; the reworkable pressure-sensitive adhesive layer comprises the following components in parts by weight: 100 parts of acrylic resin, 3 parts of isocyanate curing agent, 1 part of epoxy curing agent, 5 parts of terpene phenolic resin, 15 parts of ethyl acetate and 15 parts of toluene, wherein the thickness of the terpene phenolic resin is 25 um; the high-viscosity pressure-sensitive adhesive layer comprises the following components in parts by weight: 100 parts of acrylic resin, 0.5 part of isocyanate curing agent, 20 parts of rosin tackifying resin, 15 parts of ethyl acetate and 15 parts of toluene, wherein the thickness of the acrylic resin is 25 um; the first release film layer is a PET organosilicon release film with the thickness of 75 um; the release film layer II is a PET organic silicon release film, and the thickness of the release film layer II is 25 um.

The double-sided adhesive tape obtained in example 1 was measured to have a high tack of 2800gf/25mm, a reworkable tack of 550gf/25mm and no residual adhesive after high-speed peeling of 30m/min by using a Boleder BLD-1007 tape tack tester and a high-speed peeling force tester.

Example 2

The present embodiment 2 provides an easy-to-peel reworkable easy-to-double-sided adhesive tape, which is different from the embodiment 1 only in that: the thickness of substrate layer is 12um, and the thickness that can heavily be good at pressure-sensitive adhesive layer is 19um, and the thickness of high viscosity pressure-sensitive adhesive layer is 19um, can heavily be good at pressure-sensitive adhesive layer and include the component of following parts by weight: 100 parts of acrylic resin, 3 parts of isocyanate curing agent, 1 part of epoxy curing agent, 15 parts of ethyl acetate and 15 parts of toluene, and the parameters of the rest components are the same.

The double-sided adhesive tape obtained in example 1 had a high tack of 2100gf/25mm, a reworkable tack of 250gf/25mm, and a high peel force of 30m/min, as measured by a Boleder BLD-1007 tape tack tester and a high speed peel tester.

Example 3

Example 3 provides an easily peelable reworkable easy double-sided adhesive tape, which is different from example 1 only in that: the thickness of substrate layer is 25um, but reworking pressure sensitive adhesive layer includes the following weight parts's component: 100 parts of acrylic resin, 3 parts of isocyanate curing agent, 0.5 part of epoxy curing agent, 15 parts of ethyl acetate and 15 parts of toluene, and the parameters of the rest components are the same.

The double-sided adhesive tape obtained in example 1 was measured to have a high tack of 2900gf/25mm, a reworkable tack of 650gf/25mm, and a high peel force of 30m/min without adhesive residue, using a Boleder BLD-1007 tape tack tester and a high-speed peel force tester.

Example 4

Example 4 provides an easily peelable reworkable easy double-sided adhesive tape, which is different from example 1 only in that: the thickness that can heavily be good at pressure-sensitive adhesive layer is 80um, and is 100um from type two thickness on rete, and the parameter homogeneous phase of all the other components.

The double-sided adhesive tape obtained in example 1 was measured to have a high tack of 2600gf/25mm, a reworkable tack of 900gf/25mm and no residual adhesive after high-speed peeling of 30m/min, using a Boleder BLD-1007 tape tack tester and a high-speed peeling force tester.

Example 5

This example 5 provides an easy-to-peel reworkable easy-to-double-sided adhesive tape, which is different from example 1 only in that: the thickness of the high-viscosity pressure-sensitive adhesive layer is 75um, the thickness of the release film layer is 30um, and the parameters of the rest components are the same.

The double-sided adhesive tape obtained in example 1 was measured to have a high tack of 2700gf/25mm, a reworkable tack of 50gf/25mm and no residual adhesive after high-speed peeling of 30m/min, using a Boleder BLD-1007 tape tack tester and a high-speed peeling force tester.

While the present invention has been described in detail and with reference to the accompanying drawings, it is not to be considered as limited to the scope of the invention. Various modifications and changes may be made by those skilled in the art without inventive step within the scope of the appended claims.

Claims

1. The utility model provides an easy peeling's can heavily be good at double-sided sticky tape, its characterized in that, includes substrate layer (3), substrate layer (3) one side scribbles can heavily be good at pressure-sensitive adhesive layer (2) and leaves type rete (1) in proper order, substrate layer (3) another side scribbles high viscosity pressure-sensitive adhesive layer (4) and leaves type rete two (5) in proper order.

2. Easy-to-peel reworkable double-sided adhesive tape according to claim 1, wherein the substrate layer (3) has a thickness of 12 to 125 um.

3. The easy-peel reworkable double-sided adhesive tape according to claim 1, wherein the reworkable pressure-sensitive adhesive layer (2) has a thickness of 10 to 100 um.

4. Easy-to-peel reworkable double-sided adhesive tape according to claim 1, characterized in that the thickness of the high-tack pressure-sensitive adhesive layer (4) is from 10 to 100 um.

5. The easy-peel reworkable double-sided adhesive tape according to claim 1, wherein the first release film layer (1) has a thickness of 25-125 um.

6. The easy-peel reworkable double-sided adhesive tape according to claim 1, wherein the second release film layer (5) has a thickness of 25-125 um.

7. The easy-peel reworkable double-sided adhesive tape according to claim 1, wherein both the first release film layer (1) and the second release film layer (5) are PET silicone release films.