A kind of preparation method of antifreeze ready-mixed mortar
A technology of ready-mixed mortar and preparation steps, which is applied in the field of preparation of antifreeze ready-mixed mortar, which can solve the problems of long setting time of ready-mixed mortar, damage to the internal structure of mortar, and poor antifreeze performance, and achieve low cost and good antifreeze performance , The effect of simple preparation steps
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example 1
[0018] First weigh 7g of octamethylcyclotetrasiloxane into a three-necked flask with a thermometer and a reflux device, place the flask in a water bath, control the temperature at 90°C, and then add 0.3g of isobutyltriethoxy Silane, 0.5g tetramethylammonium hydroxide, stirred for 20min, then added 10g tetramethyldivinyldisiloxane, stirred and reacted for 4h to obtain vinyl polysiloxane mixture, set aside; then weighed 5g styrene Add it into a three-necked flask with a thermometer and a reflux device, place the flask in a water bath, control the temperature at 80°C, then add 200mL of absolute ethanol, 5g of acrylate, and 0.3g of lauroyl peroxide in sequence, and stir for 3h to obtain Polystyrene acrylate; then add the spare vinyl polysiloxane mixture to the above polystyrene acrylate, control the temperature at 90°C, then add 0.3g of lauroyl peroxide and 0.3g of copper chloride in turn, and stir 5h to obtain the silicone-modified styrene-acrylic polymer; add the above-mentioned...
example 2
[0020] First weigh 5g of octamethylcyclotetrasiloxane into a three-necked flask with a thermometer and a reflux device, place the flask in a water bath, control the temperature at 80°C, and then add 0.1g of isobutyltriethoxy Silane, 0.3g tetramethylammonium hydroxide, stirred for 10min, then added 8g tetramethyldivinyldisiloxane, stirred and reacted for 3h to obtain vinyl polysiloxane mixture, set aside; then weighed 3g styrene Add it into a three-necked flask with a thermometer and a reflux device, place the flask in a water bath, control the temperature at 70°C, then add 100mL of absolute ethanol, 3g of acrylate, and 0.1g of lauroyl peroxide in sequence, and stir for 2h to obtain Polystyrene acrylate; then add the spare vinyl polysiloxane mixture to the above polystyrene acrylate, control the temperature at 80°C, then add 0.1g of lauroyl peroxide and 0.1g of copper chloride in sequence, and stir 4h to obtain the silicone-modified styrene-acrylic polymer; add the above-mentio...
example 3
[0022] First weigh 6g of octamethylcyclotetrasiloxane into a three-necked flask with a thermometer and a reflux device, place the flask in a water bath, control the temperature at 85°C, and then add 0.2g of isobutyltriethoxy Silane, 0.4g tetramethylammonium hydroxide, stirred for 15min, then added 9g tetramethyldivinyldisiloxane, stirred and reacted for 3h to obtain vinylpolysiloxane mixture, set aside; then weighed 4g styrene Add it into a three-necked flask with a thermometer and a reflux device, place the flask in a water bath, control the temperature at 75°C, then add 150mL of absolute ethanol, 4g of acrylate, and 0.2g of lauroyl peroxide in sequence, and stir for 2 hours to obtain Polystyrene acrylate; then add the spare vinyl polysiloxane mixture to the above polystyrene acrylate, control the temperature at 85°C, then add 0.2g of lauroyl peroxide and 0.2g of copper chloride in turn, and stir 5h to obtain the silicone-modified styrene-acrylic polymer; add the above-mentio...
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