Polymethyl methacrylate-sodium maleic acid fatty alcohol ester-aluminum oxide nanocomposite material and preparation method thereof
A technology of polymethyl methacrylate and methyl methacrylate, which is applied in the field of polymethyl methacrylate-fatty alcohol maleate sodium salt-aluminum oxide nanocomposite material and its preparation field, can solve the problem of surface Strong effect, complex operation, easy agglomeration and other problems, achieve uniform and stable dispersion state, and solve serious agglomeration problems
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Embodiment 1
[0043] (1) Preparation of polymethyl methacrylate-alumina nanocomposite emulsion with anionic monomer MAMS as emulsifier: Weigh 0.5g MAMS, 0.057g initiator KPS, dissolve in 50mL deionized water, and then weigh Add 10g of monomeric methyl methacrylate into a 250mL four-neck flask, stir and pre-emulsify at a speed of 700rpm for 2h, and add the pre-emulsion to a constant pressure dropping funnel for use;
[0044] (2) Add 0.5g Al 2 o 3 Nanoparticles and 0.5g of anionic monomer MAMS were dispersed in 50mL of deionized water, and ultrasonically dispersed with a JY92-II N-type ultrasonic cell pulverizer. The set parameters were: power 600W, working time 3s, intermittent time 2s, ultrasonic in ice bath environment After 30 minutes, add the ultrasonic dispersion liquid into a 250mL four-necked flask; then weigh 10g of methyl methacrylate, add it to a 250mL four-necked flask, pre-emulsify in a water bath at room temperature for 0.5h, set the stirring speed to 700rpm, after 0.5h, start ...
Embodiment 2
[0048] (1) Preparation of polymethyl methacrylate-alumina nanocomposite emulsion with anionic monomer MAMS as emulsifier: Weigh 0.4g MAMS, 0.057g initiator AIBN, dissolve in 50mL deionized water, and then weigh Add 10g of monomeric methyl methacrylate into a 250mL four-neck flask, stir and pre-emulsify at a speed of 700rpm for 2h, and add the pre-emulsion to a constant pressure dropping funnel for use;
[0049] (2) Add 0.5g Al 2 o 3 Nanoparticles and 0.6g of anionic monomer MAMS were dispersed in 50mL of deionized water, and ultrasonically dispersed with a JY92-II N-type ultrasonic cell pulverizer. The set parameters were: power 600W, working time 3s, intermittent time 2s, ultrasonic in ice bath environment After 30 minutes, add the ultrasonic dispersion liquid into a 250mL four-necked flask; then weigh 10g of methyl methacrylate, add it to a 250mL four-necked flask, pre-emulsify in a water bath at room temperature for 0.5h, set the stirring speed to 700rpm, after 0.5h, start...
Embodiment 3
[0053] (1) Preparation of polymethyl methacrylate-alumina nanocomposite emulsion with anionic monomer MAMS as emulsifier: Weigh 0.6g MAMS, 0.057g initiator ABVN, dissolve in 50mL deionized water, and then weigh Add 10g of monomeric methyl methacrylate into a 250mL four-neck flask, stir and pre-emulsify at a speed of 700rpm for 2h, and add the pre-emulsion to a constant pressure dropping funnel for use;
[0054] (2) Add 0.5g Al 2 o 3 Nanoparticles and 0.4g of anionic monomer MAMS were dispersed in 50mL of deionized water, and ultrasonically dispersed with a JY92-II N-type ultrasonic cell pulverizer. The set parameters were: power 600W, working time 3s, intermittent time 2s, ultrasonic in an ice bath environment After 30 minutes, add the ultrasonic dispersion liquid into a 250mL four-necked flask; then weigh 10g of methyl methacrylate, add it to a 250mL four-necked flask, pre-emulsify in a water bath at room temperature for 0.5h, set the stirring speed to 700rpm, after 0.5h, st...
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