Method for producing high-solid low-viscosity acrylic resin through high pressure reaction
An acrylic resin, high-solid and low-viscosity technology, applied in the direction of coating, etc., can solve the problems of decreased weather resistance and chemical resistance of resin, slow decomposition speed of initiator, high viscosity, etc., and achieve the effect of improving workability
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Example Embodiment
[0020] Example 1
[0021] The acrylic resin of this embodiment contains the following parts by weight: 15 parts by weight of xylene, 10 parts by weight of propylene glycol methyl ether, 25 parts by weight of methyl methacrylate, 20 parts by weight of styrene, 15 parts by weight of Butyl acrylate, 2.0 parts by weight of dicumyl peroxide. The preparation method of the acrylic resin includes the following steps: firstly, the solvent xylene and propylene glycol methyl ether are added into the reaction kettle and stirred uniformly; then, methyl methacrylate, styrene, butyl acrylate and diisopropyl peroxide are added. Add propylbenzene into the reactor and stir evenly; seal the reactor and pass N 2 The pressure is increased to 0.6MPa, and the temperature is increased to 175°C, the temperature is kept for 2.0 hours, the temperature is lowered to below 100°C, and the pressure is relieved to normal pressure to obtain a high-solid, low-viscosity acrylic resin.
Example Embodiment
[0022] Example 2
[0023] The acrylic resin of this embodiment contains the following parts by weight: 20 parts by weight of xylene, 12 parts by weight of propylene glycol methyl ether, 30 parts by weight of methyl methacrylate, 30 parts by weight of styrene, and 20 parts by weight of Butyl acrylate, 2.5 parts by weight of dicumyl peroxide. The preparation method of the acrylic resin includes the following steps: firstly, the solvent xylene and propylene glycol methyl ether are added into the reaction kettle and stirred uniformly; then, methyl methacrylate, styrene, butyl acrylate and diisopropyl peroxide are added. Add propylbenzene into the reactor and stir evenly; seal the reactor and pass N 2 The pressure is increased to 0.8MPa, the temperature is increased to 180°C, the temperature is kept for 2.0 hours, the temperature is lowered to below 100°C, and the pressure is released to normal pressure to obtain a high-solid, low-viscosity acrylic resin.
Example Embodiment
[0024] Example 3
[0025] The acrylic resin of this embodiment contains the following parts by weight: 18 parts by weight of xylene, 10 parts by weight of propylene glycol methyl ether, 20 parts by weight of methyl methacrylate, 25 parts by weight of styrene, and 20 parts by weight of Butyl acrylate, 2.0 parts by weight of dicumyl peroxide. The preparation method of the acrylic resin includes the following steps: firstly, the solvent xylene and propylene glycol methyl ether are added into the reaction kettle and stirred uniformly; then, methyl methacrylate, styrene, butyl acrylate and diisopropyl peroxide are added. Add propylbenzene into the reactor and stir evenly; seal the reactor and pass N 2 The pressure is increased to 0.8MPa, the temperature is increased to 180°C, the temperature is kept for 2.0 hours, the temperature is lowered to below 100°C, and the pressure is released to normal pressure to obtain a high-solid, low-viscosity acrylic resin.
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