Polystyrene-maleic acid fatty alcohol ester sodium salt-aluminum trioxide nanocomposite material and preparation method thereof

A technology of nanocomposite materials and aluminum oxide, which is applied in the field of polystyrene-fatty alcohol maleate sodium salt-aluminum oxide nanocomposite materials and its preparation, can solve the problem of strong surface interaction, cumbersome steps, polymerization Solve the problems of inconvenient preparation of material-based nanocomposites, achieve a uniform and stable dispersion state, and solve the effect of serious agglomeration

Inactive Publication Date: 2020-12-29
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the small particle size, large specific surface area, large surface energy and strong surface interaction of nanoparticles, they are easy to agglomerate and have poor dispersion.
Most of the surface modification methods of nanoparticles reported so far are complex in operation and cumbersome in steps, which brings inconvenience to the preparation of polymer-based nanocomposites.

Method used

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  • Polystyrene-maleic acid fatty alcohol ester sodium salt-aluminum trioxide nanocomposite material and preparation method thereof
  • Polystyrene-maleic acid fatty alcohol ester sodium salt-aluminum trioxide nanocomposite material and preparation method thereof
  • Polystyrene-maleic acid fatty alcohol ester sodium salt-aluminum trioxide nanocomposite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043](1) Preparation of polystyrene-aluminum oxide nanocomposite emulsion with anionic monomer MAMS as emulsifier: weigh 0.5g MAMS, 0.057g initiator KPS, dissolve in 50mL deionized water, and weigh 10g monomer Styrene was added to a 250mL four-necked flask, stirred at 700rpm for 2h to pre-emulsify, and then added the pre-emulsion to the constant pressure dropping funnel for later use;

[0044](2) Add 0.5g Al2O3Nanoparticles and 0.5g anionic monomer MAMS were dispersed in 50mL deionized water, and ultrasonically dispersed with JY92-II N-type ultrasonic cell pulverizer. The setting parameters were: power 600W, working time 3s, intermittent time 2s, ultrasonic in ice bath environment 30min, add the ultrasonic dispersion into a 250mL four-necked flask; then weigh 10g of styrene and 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, and start to heat up after 0.5h; When it reaches 70℃, weigh out 0.057g KPS, diss...

Embodiment 2

[0048](1) Preparation of polystyrene-aluminum oxide nanocomposite emulsion with anionic monomer MAMS as emulsifier: weigh 0.4g MAMS, 0.057g initiator ABIN, dissolve in 50mL deionized water, and weigh 10g monomer Styrene, added to a 250mL four-necked flask, stirred at 700rpm for 2h to pre-emulsify, add the pre-emulsion to the constant pressure dropping funnel for later use;

[0049](2) Add 0.5g Al2O3Nanoparticles and 0.6g anionic monomer MAMS were dispersed in 50mL deionized water, and ultrasonically dispersed with JY92-II N-type ultrasonic cell pulverizer. The setting parameters were: power 600W, working time 3s, intermittent time 2s, ultrasonic in ice bath environment 30min, add the ultrasonic dispersion into a 250mL four-necked flask; then weigh 10g of styrene and 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, and start to heat up after 0.5h; When it reaches 70℃, weigh out 0.057g of initiator ABIN, dis...

Embodiment 3

[0053](1) Preparation of polystyrene-alumina nanocomposite emulsion with anionic monomer MAMS as emulsifier: Weigh 0.6g MAMS, 0.057g initiator ABVN, dissolve in 50mL deionized water, and weigh 10g monomer Styrene was added to a 250mL four-necked flask, stirred at 700rpm for 2h to pre-emulsify, and then added the pre-emulsion to the constant pressure dropping funnel for later use;

[0054](2) Add 0.5g Al2O3Nanoparticles and 0.4g anionic monomer MAMS were dispersed in 50mL deionized water, and ultrasonically dispersed by JY92-II N-type ultrasonic cell pulverizer. The setting parameters were: power 600W, working time 3s, intermittent time 2s, ultrasonic under ice bath environment 30min, add the ultrasonic dispersion into a 250mL four-necked flask; then weigh 10g of styrene and 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, and start to heat up after 0.5h; When it reaches 70℃, weigh out 0.057g of initiator A...

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Abstract

The invention provides a polystyrene-sodium maleic acid fatty alcohol ester-aluminum oxide nano-composite material and a preparation method thereof. The method is as below: using PS and sodium maleicacid fatty alcohol ester as copolymerization monomers, using the sodium maleic acid fatty alcohol ester as an emulsifier, and adding an initiator to prepare a pre-emulsion; with the sodium maleic acidfatty alcohol ester as a dispersing agent, pre-dispersing nano-Al2O3 in an aqueous solution, and adding PS to the above dispersion liquid to form an emulsion polymerization system; heating the aboveemulsion polymerization system to an initiation temperature, adding an initiator, and during the polymerization, gradually dropwise adding the pre-emulsion prepared in the step 1 to the emulsion polymerization system; and conducting complete reaction to obtain a polystyrene-sodium maleic acid fatty alcohol ester-aluminum oxide copolymer emulsion. In the copolymer emulsion and copolymer microspherepowder, the aluminum oxide is dispersed at a nano level, and the dispersion state is uniform and stable; therefore, the method solves the problem of serious agglomeration of nanoparticles in the polystyrene-aluminum oxide composite material.

Description

Technical field[0001]The present invention relates to the technical field of composite materials, and more specifically to a polystyrene-maleic fatty alcohol ester sodium salt-aluminum oxide nanocomposite material and a preparation method thereof, using polystyrene (PS) as a substrate , Through the anionic monomer dodecyl maleate sodium salt (MAMS) through electrostatic interaction and steric interaction to disperse and stabilize aluminum oxide (Al2O3) Nano particles to prepare highly dispersed PMMA-based nanocomposite materials.Background technique[0002]The polymer-based nanocomposite material refers to a composite material that uses a polymer as a matrix and the dispersed phase size is less than 100 nm in at least one dimension. Polymer-based nanocomposite materials combine the advantages of polymers and nanomaterials, realize optimization and complementarity in performance, and have broad research and application prospects. However, due to the small particle size, large specific ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F212/08C08F222/16C08F2/26C08K3/22C08L35/06
CPCC08F2/26C08F212/08C08K3/22C08K2003/2227C08K2201/003C08K2201/011C08L35/06C08F222/165
Inventor 郑俊萍丁永陈雨
Owner TIANJIN UNIV
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