一种具有多功能复合结构的亚克力泡棉胶带
By utilizing a multifunctional composite structure and plasma spark treatment technology, the performance limitations of existing tapes in small-area bonding scenarios have been overcome, resulting in acrylic foam tapes with high adhesion, water resistance, and temperature resistance, suitable for bonding electronic devices.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CROWN NEW MATERIALS TECHNOLOGY CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-07-17
AI Technical Summary
Existing tapes are difficult to meet the stringent requirements of high bonding strength, cushioning and shock absorption, ultra-thin waterproofing, and high temperature aging resistance in small-area bonding scenarios. Traditional PET substrates are prone to interfacial stress concentration, while acrylic foam tapes have insufficient adhesive strength, poor temperature resistance, and difficulty in waterproofing after high temperature and humidity, and have limited functionality.
It adopts a multi-functional composite structure design, including a first adhesive layer, a first acrylic foam layer, a substrate layer, a second acrylic foam layer, a second adhesive layer, and a release layer. The substrate layer is a plastic layer, and the first and second adhesive layers are acrylic adhesive layers. Combined with plasma spark treatment and foaming technology, a closed-cell acrylic foam structure is formed, which improves adhesion and temperature resistance.
It achieves ultra-high adhesion (>35N/24mm), waterproof (IPX8 certified), easy removal (residual adhesive rate <30%), and high temperature resistance (>120℃), making it suitable for bonding curved screens and mobile phone frames, and solving the performance deficiencies of existing tapes in small-area bonding scenarios.
Smart Images
Figure CN224513425U_ABST
Abstract
Claims
1. A multi-functional acrylic foam tape having a composite structure, characterized by It includes a first adhesive layer, a first acrylic foam layer, a substrate layer, a second acrylic foam layer, a second adhesive layer, and a release layer, which are stacked and bonded together in sequence. The substrate layer is a plastic layer, and the first adhesive layer and the second adhesive layer are both acrylic adhesive layers. The thickness of the first adhesive layer is greater than the thickness of the second adhesive layer.
2. The multi-functional composite structure acrylic foam tape according to claim 1, wherein The thickness of the first adhesive layer is 50μm~70μm, and the thickness of the second adhesive layer is 30μm~50μm.
3. The multi-functional composite structure acrylic foam tape according to claim 1 or 2, characterized in that The thickness of the first acrylic foam layer is 35μm~115μm, and the thickness of the second acrylic foam layer is 35μm~115μm.
4. The multi-functional composite structure acrylic foam tape according to claim 1 or 2, characterized in that The first acrylic foam layer includes a first plasma spark treatment layer adjacent to the first adhesive layer; the second acrylic foam layer includes a second plasma spark treatment layer adjacent to the second adhesive layer.
5. The multi-functional composite structure acrylic foam tape according to claim 1 or 2, wherein The thickness of the substrate layer is 20μm~50μm.
6. The multi-functional composite structure acrylic foam tape according to claim 1 or 2, characterized in that The substrate layer is black PET.
7. The multi-functional composite structure acrylic foam tape according to claim 1 or 2, wherein The substrate layer includes a third plasma spark treatment layer near the first acrylic foam layer and a fourth plasma spark treatment layer near the second acrylic foam layer.
8. The multi-functional composite structure acrylic foam tape according to claim 1 or 2, characterized in that The first acrylic foam layer and the second acrylic foam layer are formed by coating adhesive layers on both sides of the substrate layer and then foaming the adhesive layers on the substrate layer.
9. The multi-functional composite structure acrylic foam tape according to claim 8, wherein The thickness of the adhesive layer is 30μm~70μm, and the foaming rate is 1.2~1.
5.
10. The multi-functional composite structure acrylic foam tape according to claim 1 or 2, characterized in that The release layer is a single-silicon release film or a double-silicon release film, with a thickness of 30μm~45μm.