A brightening agent for facing stone and its preparation method and application
A technology of brightening agent and stone, applied in the field of brightening agent for veneer stone and its preparation, and polymer composite material for decoration of veneer stone, can solve the problems of high price, limited effect of color enhancement and brightening, and achieve low cost, The effect of darkening and brightening with high stability and guaranteed conspicuousness
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Embodiment 1
[0064] Preparation of material A: Mix 40.50g of methyl methacrylate, 16.00g of butyl acrylate, and 2.44g of methacrylic acid to obtain an acrylate monomer mixture; then mix 11.79g of acrylate monomer mixture, 21.00g of butyl acetate , 0.60g benzoyl peroxide, and 0.80g dodecyl mercaptan were added to the reactor; then, nitrogen was charged into the reactor, and after 15 minutes of nitrogen filling, the stirring was started and the stirring rate was adjusted to be 60r / min, and then the reaction The kettle was heated to 80°C and refluxed for 1 h. Then, the temperature of the reactor was raised to 85° C. and the remaining acrylate monomer mixture was added dropwise within 3 hours, and then the temperature of the reactor was raised to 90° C. for constant temperature reaction for 4 hours. After the reaction is completed, add 18.66g of butyl acetate, continue stirring to lower the temperature of the reactor to normal temperature, stop stirring and nitrogen filling, and seal the disch...
Embodiment 2
[0068] Preparation of material A: Mix 35.00g of methyl methacrylate, 19.00g of butyl acrylate, and 3.42g of methacrylic acid to obtain an acrylate monomer mixture; then mix 11.49g of acrylate monomer mixture, 22.50g of butyl acetate , 0.70g benzoyl peroxide, and 0.92g dodecyl mercaptan are added to the reactor; then, nitrogen is charged into the reactor, and after 15 minutes of nitrogen filling, the stirring is started and the stirring rate is adjusted to be 60r / min, and then the reaction The kettle was heated to 80°C and refluxed for 1 h. Then, the temperature of the reactor was raised to 85° C. and the remaining acrylate monomer mixture was added dropwise within 3 hours, and then the temperature of the reactor was raised to 90° C. for constant temperature reaction for 4 hours. After the reaction is completed, add 18.46g of butyl acetate, continue stirring to lower the temperature of the reactor to normal temperature, stop stirring and nitrogen filling, and seal the discharge...
Embodiment 3
[0072] Preparation of material A: Mix 31.40g of methyl methacrylate, 23.40g of butyl acrylate, and 4.50g of methacrylic acid to obtain an acrylate monomer mixture; then mix 11.86g of acrylate monomer mixture, 25.00g of toluene, 0.65 Add 1g benzoyl peroxide and 0.55g dodecyl mercaptan to the reaction kettle; then fill the reaction kettle with nitrogen, start stirring after 15 minutes of nitrogen filling and adjust the stirring rate to 60r / min, then heat the reaction kettle Reflux reaction at 80°C for 1h. Then, the temperature of the reactor was raised to 85° C. and the remaining acrylate monomer mixture was added dropwise within 3 hours, and then the temperature of the reactor was raised to 90° C. for constant temperature reaction for 4 hours. Add 14.50 g of toluene after the reaction is complete, continue stirring to lower the temperature of the reactor to normal temperature, stop stirring and nitrogen filling, and seal the discharge to obtain a light yellow transparent liquid...
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Abstract
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