The material of choice for graphite sheet bonding applications. As a leading adhesive tape manufacturer represented in over 100 countries, tesa brings quality adhesive tapes to India. The 180° peel force of 8205 (5 μm) and 8210 (10 μm) double-sided tapes can exceed 600g/25mm and 1000g/25mm, and the sticking force at 70 ☌ exceeds 168 hours. 50 Meters/roll 3M 9448A Double Sided Adhesive Tape Thickness 0.16mm Ultra Thin Slim for Mobile Phone Screen LCD Display Digitizer Repair 5-50mm50 Meters. Horaetape solves the problems of low bonding strength and poor heat resistance of ultra-thin double-sided tapes. BUILDMATE Omega INDUSTRIAL GRADE Gum Type Double Sided Tape 6MM - 18MM Double Face Tape Molding Tape. But when the thickness of the carrier is 1~2 μm, the corona may break down the PET film (because the adhesion between the carrier and the adhesive layer of the 5~10 μm ultra-thin double-sided tape is worse than that of the thick double-sided tape). In addition, before coating the ultra thin double-sided tape of the PET carrier, both sides of the PET carrier will be corona treated to increase the bonding force between the adhesive layer and the PET film. It is particularly prone to breakage due to tensile tension). Usually, the transfer tape is easy to flow and overflow at high temperature, and the ultra thin double-sided tape containing the carrier will not overflow because the adhesive layer is fixed by the carrier however, when the thickness of the ultra thin double-sided tape is reduced to 5~10 μm, the thickness of the backing needs to be controlled within the range of 1~2 μm, which greatly challenges the existing coating technology (such a thin carrier is affected by the coating process during the coating process. First of all, it is necessary to ensure that the graphite sheet does not warp or pop open at high temperature, and the adhesive force and cohesive strength of the ultra thin double-sided tape can maintain 50% or more of room temperature at high temperature, and the glue cannot flow at high temperature (Otherwise, it will contaminate the edge of the heat source). Double-sided tape holds the film in place until the last step in the quick and easy installation process, when you use a hair dryer to shrink the film to. The bonding of graphite sheets brings great challenges to the design of ultra-thin double-sided tapes. The ultra-thin double-sided tape must maintain a high adhesive force at high temperature, otherwise the edge of the graphite sheet will bounce off due to the decrease in the adhesive force of the double-sided tape. During the operation of the smartphone, the temperature will increase accordingly, up to 70~80 ℃. In order to quickly transfer heat to the graphite sheet, the double-sided tape is required to be particularly thin, and the thickness should preferably be controlled in the range of 5~10 μm. Thin double-sided tape backing is a polymer, and its thermal conductivity is much worse than that of metal and graphite sheets. The heat is dissipated by thermal conduction to the graphite sheet. Smartphones mainly use graphite sheets to dissipate heat, that is, graphite sheets are pasted behind the heat source (chip and battery).
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |