High-strength acrylic pressure-sensitive adhesive tape for electronic products
By introducing a carbon fiber reinforced layer into the pressure-sensitive tape for electronic products, combined with PET and PP films, the tensile strength and durability of the tape are improved, and the problem of easy breakage of existing tapes is solved.
Patent Information
- Application Number
- CN202420774201.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-12
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-04-12
AI Technical Summary
Current pressure-sensitive tapes used in electronic products have low tensile strength and are prone to break when tearing, which affects the use of tape.
A high-strength acrylic pressure-sensitive tape structure including a release layer, a PET substrate layer, a carbon fiber reinforced layer, a PP substrate layer and an acrylic pressure-sensitive adhesive layer is adopted. The tensile strength of the tape is improved by combining carbon fiber with PET and PP films.
Through the reinforcement of carbon fiber, the tensile strength of the tape reaches 0.5~3.5GPa/(g/cm3), which solves the problem of easy breakage of existing tapes and improves high temperature resistance, fatigue resistance and suppleness.
Smart Images
Figure CN222556857U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of adhesive tapes, in particular to a high-strength acrylic pressure-sensitive adhesive tape for electronic products. Background Art
[0002] Acrylic pressure-sensitive adhesives are widely used in electronic materials, new energy vehicles, and daily necessities due to their strong bonding strength, good bonding effect, and simple and convenient operation. In the production and assembly process of electronic products, adhesives or adhesive tapes are indispensable for bonding, sealing, fixing, potting, coating, structural bonding, and SMT patches of electronic components. The existing pressure-sensitive tapes used for electronic products have low tensile strength and are easy to break when torn, which affects the use of the tape. Utility Model Content
[0003] In order to solve the above problems, the utility model provides a high-strength acrylic pressure-sensitive adhesive tape for electronic products.
[0004] The technical solution adopted by the utility model is:
[0005] A high-strength acrylic pressure-sensitive adhesive tape for electronic products comprises a release layer, a PET substrate layer, a first adhesive layer, a carbon fiber reinforcement layer, a second adhesive layer, a PP substrate layer and an acrylic pressure-sensitive adhesive layer; the release layer is a release agent structural layer coated on the front side of the PET substrate layer, the PET substrate layer and the carbon fiber reinforcement layer are bonded by the first adhesive layer, the PP substrate layer and the carbon fiber reinforcement layer are bonded by the second adhesive layer, and the acrylic pressure-sensitive adhesive layer is a pressure-sensitive acrylic adhesive structural layer coated on the back side of the PP substrate layer.
[0006] Furthermore, the thickness of the release layer is 1-2 μm.
[0007] Furthermore, the fiber reinforcement layer is made of carbon fiber cloth with a gram weight of 100-300 (g / ㎡).
[0008] Furthermore, the PET substrate layer is made of a PET film with a thickness of 20-40 μm.
[0009] Furthermore, the PP substrate layer is made of a PP film with a thickness of 20-40 μm.
[0010] Furthermore, the first adhesive layer is a solvent-based acrylic adhesive structure layer coated on the back of the PET substrate layer, and has a thickness of 3-5 μm.
[0011] Furthermore, the second adhesive layer is a solvent-based acrylic adhesive structure layer coated on the front side of the PP substrate layer, and has a thickness of 3-5 μm.
[0012] Furthermore, the thickness of the acrylic pressure-sensitive adhesive structural layer is 20-40 μm.
[0013] The beneficial effects of the utility model are as follows: the tensile strength of carbon fiber can reach 0.5-3.5GPa / (g / cm3), and the pressure-sensitive adhesive tape prepared by compounding carbon fiber with PET film and PP film has high tensile strength, thereby solving the problem that the existing adhesive tape is easy to break when being torn. Carbon fiber has poor folding resistance, and by compounding PET film and PP film with adhesive, PET has high temperature resistance and fatigue resistance, and PP film has good softness. The combination of the three can improve the overall high temperature resistance, fatigue resistance and compliance of the tape. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic structural diagram of the high-strength acrylic pressure-sensitive tape for electronic products of the present application. DETAILED DESCRIPTION
[0015] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings and a preferred implementation manner.
[0016] See also Figure 1 A high-strength acrylic pressure-sensitive adhesive tape for electronic products includes a release layer 1, a PET substrate layer 2, a first adhesive layer 3, a carbon fiber reinforcement layer 4, a second adhesive layer 5, a PP substrate layer 6 and an acrylic pressure-sensitive adhesive layer 7 which are connected in sequence.
[0017] The PET substrate layer 2 is made of a PET film with a thickness of 20-40 μm; the front and back sides of the PET film are subjected to surface corona treatment to obtain a rough film substrate on both sides. A release agent is coated on the front side of the PET film to form a release layer 1 with a thickness of 1-2 μm; a solvent-based acrylic adhesive is coated on the back side of the PET film to form a first adhesive layer 3 with a thickness of 3-5 μm.
[0018] The PP substrate layer 6 is made of a PP film with a thickness of 20-40 μm; the front and back sides of the PP are subjected to surface corona treatment to obtain a rough film substrate on both sides. A solvent-based acrylic adhesive is coated on the front side of the PP film to form a second adhesive layer 5 with a thickness of 3-5 μm; a pressure-sensitive acrylic adhesive is coated on the back side of the PP film to form an acrylic pressure-sensitive adhesive layer 7 with a thickness of 20-40.
[0019] The fiber reinforcement layer 4 is made of carbon fiber cloth with a gram weight of 100-300 (g / ㎡). The fiber reinforcement layer 4 is bonded to the PET substrate layer 2 and the PP substrate layer 6 through the first adhesive layer 3 and the second adhesive layer 5 respectively.
[0020] The working principle of the utility model is as follows: by providing a release layer, the pressure-sensitive adhesive tape can exhibit extremely light and stable release force for various organic pressure-sensitive adhesives; by providing a PET substrate layer, a carbon fiber reinforcement layer, and a PP substrate layer, the pressure-sensitive adhesive tape has higher tensile strength, better high temperature resistance and fatigue resistance, and good conformability.
[0021] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention, and these improvements and modifications are also within the protection scope of the present invention.
Claims
1. A high-strength acrylic pressure-sensitive tape for electronic products, characterized in that: The invention comprises a release layer (1), a PET substrate layer (2), a first adhesive layer (3), a carbon fiber reinforcement layer (4), a second adhesive layer (5), a PP substrate layer (6) and an acrylic pressure-sensitive adhesive layer (7); the release layer (1) is a release agent structural layer coated on the front side of the PET substrate layer (2); the PET substrate layer (2) and the carbon fiber reinforcement layer (4) are bonded via the first adhesive layer (3); the PP substrate layer (6) and the carbon fiber reinforcement layer (4) are bonded via the second adhesive layer (5); and the acrylic pressure-sensitive adhesive layer (7) is a pressure-sensitive acrylic adhesive structural layer coated on the back side of the PP substrate layer (6).
2. The high-strength acrylic pressure-sensitive adhesive tape for electronic products according to claim 1, characterized in that: The thickness of the release layer (1) is 1-2 μm.
3. The high-strength acrylic pressure-sensitive adhesive tape for electronic products according to claim 1, characterized in that: The carbon fiber reinforcement layer (4) is made of carbon fiber cloth with a gram weight of 100-300 (g / ㎡).
4. The high-strength acrylic pressure-sensitive adhesive tape for electronic products according to claim 1, characterized in that: The PET substrate layer (2) is made of a PET film with a thickness of 20-40 μm.
5. The high-strength acrylic pressure-sensitive adhesive tape for electronic products according to claim 1, characterized in that: The PP substrate layer (6) is made of a PP film with a thickness of 20-40 μm.
6. The high-strength acrylic pressure-sensitive adhesive tape for electronic products according to claim 1, characterized in that: The first adhesive layer (3) is a solvent-based acrylic adhesive structure layer coated on the back of the PET substrate layer (2) and has a thickness of 3-5 μm.
7. The high-strength acrylic pressure-sensitive adhesive tape for electronic products according to claim 1, characterized in that: The second adhesive layer (5) is a solvent-based acrylic adhesive structure layer coated on the front side of the PP substrate layer (6) and has a thickness of 3-5 μm.
8. The high-strength acrylic pressure-sensitive adhesive tape for electronic products according to claim 1, characterized in that: The thickness of the acrylic pressure-sensitive adhesive structural layer is 20-40 μm.