Pressure-sensitive adhesive for PET (Polyester) adhesive tapes and preparation method thereof
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A technology of pressure-sensitive adhesives and adhesive tapes, which is applied in the direction of adhesives, adhesive types, ester copolymer adhesives, etc., and can solve problems such as residual glue
Inactive Publication Date: 2011-05-04
SUZHOU SIDIKE NEW MATERIALS SCI & TECH
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[0004] The invention provides a pressure-sensitive adhesive for PET adhesive tape and a preparation method thereof, the purpose of which is to solve the problem of residual glue when the high-viscosity pressure-sensitive adhesive tape is torn
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Embodiment 1
[0024] Example 1: A pressure-sensitive adhesive for PET adhesive tape and its preparation method
[0025] Butyl acrylate 150kg;
[0026] Isooctyl acrylate 250kg;
[0027] Acrylic acid 7kg;
[0028] Methyl methacrylate 30kg;
[0029] Vinyl acetate 30kg;
[0030] 2-hydroxyethyl methacrylate 12kg;
[0031] Benzoyl peroxide 3kg;
[0032] Ethyl acetate 260kg;
[0033] Toluene 260kg;
[0034] Tackifying resin 195kg.
[0035] The preparation method is as follows:
[0036] (1) Add butyl acrylate, isooctyl acrylate, acrylic acid, methyl methacrylate, vinyl acetate, and 2-hydroxyethyl methacrylate to toluene and ethyl acetate and stir;
[0037] (2) Heating to 80-85°C in the reaction kettle, then adding 0.7kg of benzoyl peroxide and keeping it warm for 2 hours;
[0038] (3) Add 1.5kg of benzoyl peroxide and keep warm for 4h;
[0039] (4) Finally add 0.8kg benzoyl peroxide and keep warm for 2h;
[0040] (5) Lower the temperature to about 50°C, add the tackifying resin, stir ev...
Embodiment 2 5
[0041] Embodiments 2-5: A pressure-sensitive adhesive for PET adhesive tape and its preparation method
[0042] 1. The raw material formula is shown in the following table:
[0043]
[0044] Two, preparation method is the same as embodiment one.
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Abstract
The invention discloses a pressure-sensitive adhesive for PET (Polyester) adhesive tapes and a preparation method thereof. The preparation method comprises the following steps of: uniformly mixing 10-20% butyl acrylate, 15-30% of ethyl hexyl acrylate, 0.5-2% of acrylic acid, 2-5% methyl methacrylate, 2-5% vinyl acetate, 0.5-2% methacrylate-2-hydroxyethyl ester, 20-30% toluene and 20-30% ethyl acetate; heating to 80-85 DEG C in a reaction kettle, and then adding benzoyl peroxide 1-3 times in a heat holding process, wherein the heat holding time is 2-10h; and finally, adding tackifying resin as required on adhesiveness. In the invention, the prepared pressure-sensitive adhesive has high stripping resistance between 1000g and 2000g, and has no adhesive remained to pollute an adhered object in a tearing process.
Description
technical field [0001] The invention relates to a pressure-sensitive adhesive used for PET adhesive tapes and a preparation method thereof, belonging to the technical field of adhesive material processing. Background technique [0002] Pressure-sensitive adhesive tape is referred to as pressure-sensitive adhesive tape, which is defined as: using finger pressure, it can make the adhesive immediately bond to the smooth surface of any adherend. At the same time, if the adhesive does not pollute the surface of the adherend when the surface of the adherend is destroyed, this type of adhesive is called a pressure sensitive adhesive (PressureSensitive Adhesive). Pressure-sensitive adhesive is a kind of viscoelastic body with both the viscous properties of liquid and the elastic properties of solid; this viscoelastic body also has "the influencing factors and properties of being able to withstand both the contact process and the destruction process of bonding" . Pressure-sensitive...
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