A kind of high temperature resistant double-sided adhesive tape and its preparation method
A double-sided tape, high temperature resistant technology, applied in the direction of adhesives, non-polymer adhesive additives, film/flake adhesives, etc. Problems such as failure of electronic products and small space allowance of double-sided tapes can achieve the effect of improving compactness, not easy to break, and improving stability
Active Publication Date: 2021-02-19
NINGBO SOKEN CHEM
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Problems solved by technology
[0002] Adhesive tape is especially widely used in some 3C electronic products. As the technology of electronic 3C products is becoming more and more developed, electronic products such as mobile phones and tablet computers are gradually becoming thinner and lighter, and some parts inside the mobile phone are gradually becoming thinner. The trend of development, so that the internal space margin of mobile phones and electronic products is small, and the space margin of the double-sided tape used for fixed bonding inside mobile phones and electronic products is also relatively small, which requires the thickness of the tape to increase. The thinner it is, because there is a common "heating" phenomenon in electronic products, which requires ultra-thin PET double-sided tape to have a certain temperature resistance, especially after the temperature rises, the tape cannot fall off from the attached part. Most of the current market The ultra-thin PET double-sided tape can be well attached to the internal parts at room temperature, but once the mobile phone or other electronic products are used and heated, the tape will be separated from it, causing the failure of the mobile phone or other electronic products
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Embodiment Construction
[0028] Below in conjunction with embodiment the present invention is described in further detail.
[0029] First prepare the acrylate adhesive, the preparation method is as follows:
[0030] Add functional group monomers and initiators to the main monomer, carry out polymerization reaction at a certain polymerization temperature and stirring speed of 350±50rpm, and stop the reaction when the reaction time is generally 6±1 hours.
[0031] After the reaction is completed, after cooling to room temperature, add additives, and stir until a solution with a transparent appearance, uniform viscosity and stable viscosity is formed, and an acrylic adhesive is obtained.
[0032] Table 1 and Table 2 show the recipes for preparing the various examples of acrylate adhesives.
[0033] Table 1
[0034] Example main monomer functional group monomer Initiator Polymerization temperature ℃ additive BA AAA BPO Rosin resin Example A 90 1 0.01 60～80 5 ...
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Abstract
The invention relates to a high temperature resistant double-sided adhesive tape and a preparation method thereof, comprising a base material and an adhesive layer coated on the first surface and the second surface of the base material; it is characterized in that: the formula of the adhesive layer includes the following Composition by weight: add boric acid to ethyl acetate to dissolve evenly; add isocyanate oligomers to acrylic pressure-sensitive adhesive and mix evenly, then add evenly dissolved boric acid and ethyl acetate, and stir evenly to obtain a coating Liquid; after filtering, apply it to the first release layer and the second release layer respectively, and then compound with the base layer to obtain a high temperature resistant double-sided tape.
Description
technical field [0001] The invention relates to the field of electrical adhesive tapes, in particular to a high-temperature-resistant double-sided adhesive tape and a preparation method thereof. Background technique [0002] Adhesive tape is especially widely used in some 3C electronic products. As the technology of electronic 3C products is becoming more and more developed, electronic products such as mobile phones and tablet computers are gradually becoming thinner and lighter, and some parts inside the mobile phone are gradually becoming thinner. With the development of the trend, the margin of internal space of mobile phones and electronic products is small, and the space margin of double-sided tape used for fixed bonding inside mobile phones and electronic products is also relatively small, which requires the thickness of the tape to increase. The thinner it is, because there is a common "heating" phenomenon in electronic products, which requires ultra-thin PET double-s...
Claims
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IPC IPC(8): C09J133/08C09J11/04C09J7/30C09J7/25
Inventor 吴兴波
Owner NINGBO SOKEN CHEM