Acrylate pressure-sensitive adhesive and preparation method thereof
A pressure-sensitive adhesive, acrylate technology, applied in the direction of ester copolymer adhesives, adhesive types, amide/imide polymer adhesives, etc., can solve trouble, low ethyl acetate recovery efficiency, recycling The problem of high solvent moisture content, to achieve the effect of simple production process, low equipment corrosion, and excellent adhesion
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Embodiment 1
[0027] Weigh 1,100 parts of 2-ethylhexyl acrylate, 15 parts of glycidyl methacrylate, 1,000 parts of toluene, and 15 parts of azobisisobutyronitrile, mix them evenly, and add them to the reaction kettle. under the atmosphere.
[0028] Raise the temperature to 70°C and react for 0.5h, take 615 parts of butyl acrylate, 260 parts of methyl methacrylate, 38 parts of acrylic acid, 28 parts of hydroxyethyl acrylate, and 800 parts of toluene, mix them evenly, and add them at a constant speed within 3 hours through a peristaltic pump Reactor, maintain the temperature inside the kettle at 74-75°C.
[0029] After heat preservation at 82°C for 1 hour, 7.5 parts of azobisisobutyronitrile was dissolved in 50 parts of toluene, 12 parts of acrylic acid and 90 parts of butyl acrylate were added to the reaction kettle.
[0030] After continuing to keep warm at 84°C for 1 hour, take 7.5 parts of azobisisobutyronitrile and dissolve in 50 parts of toluene, take 15 parts of hydroxyethyl acrylate ...
Embodiment 2
[0033] Weigh 900 parts of 2-ethylhexyl acrylate, 35 parts of glycidyl methacrylate, 500 parts of toluene, 500 parts of n-hexane, and 15 parts of azobisisobutyronitrile, mix them evenly, and add them to the reaction kettle. Helium keeps it under protective atmosphere.
[0034] Raise the temperature to 70°C and react for 0.5h, take 615 parts of butyl acrylate, 130 parts of methyl methacrylate, 130 parts of vinyl acetate, 38 parts of acrylic acid, 28 parts of hydroxyethyl acrylate, 500 parts of toluene, 500 parts of n-hexane After mixing evenly, add it into the reaction kettle at a constant speed for 2 hours through a peristaltic pump, and maintain the temperature in the kettle at 74-75°C.
[0035] After heat preservation at 80°C for 1 hour, 5 parts of azobisisobutyronitrile were dissolved in 25 parts of toluene and 25 parts of n-hexane, 18 parts of acrylic acid and 90 parts of butyl acrylate were added to the reaction kettle.
[0036] After continuing to keep warm at 82°C for 1...
Embodiment 3
[0039] Weigh 1200 parts of 2-ethylhexyl acrylate, 10 parts of N-methylol acrylamide, 550 parts of n-heptane, 550 parts of cyclohexane, and 15 parts of dibenzoyl peroxide and mix them evenly and add them to the reactor. Argon gas was introduced into the kettle to make it under a protective atmosphere.
[0040] Raise the temperature to 75°C and react for 0.5h. After mixing 500 parts of butyl acrylate, 280 parts of vinyl acetate, 50 parts of acrylic acid, 20 parts of hydroxyethyl acrylate, 300 parts of n-heptane and 300 parts of cyclohexane, pass Add the peristaltic pump into the reaction kettle at a constant speed for 3 hours, and maintain the temperature in the kettle at 78-79°C.
[0041] After insulated at 81°C for 1 hour, 7.5 parts of dibenzoyl peroxide were dissolved in 25 parts of n-heptane and 25 parts of cyclohexane, 15 parts of acrylic acid and 100 parts of butyl acrylate were added to the reaction kettle.
[0042] After continuing to keep warm at 83°C for 1 hour, take ...
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