Preparation method of anti-notch-sensitivity graphene-type nano composite aquagel
A nanocomposite and graphene technology, applied in the field of nanomaterials, to achieve good mechanical properties, complete preparation process, and simple synthesis process
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Embodiment 1
[0025] 1. Prepare 25mL of graphene oxide dispersion with a mass fraction of 0.6%, and pass nitrogen gas for 15min, heat to 70°C; weigh 0.565g N-isopropylacrylamide, 0.03g N,N-dimethylbis Add acrylamide and 0.03 g of potassium persulfate to the graphene oxide dispersion, and react for 15 minutes under a nitrogen atmosphere to obtain a graphene oxide-loaded microgel composite nanomaterial dispersion.
[0026] 2. Place the dispersion liquid obtained in step 1 in an ice-water bath, and pass nitrogen gas for 5 minutes, weigh 15% of the mass of the dispersion liquid, and add acrylamide, a hydrophilic monomer, into the dispersion liquid, stir and dissolve, and then add 0.4% of the mass of the dispersion liquid % accelerator tetramethylethylenediamine, stir and disperse evenly, and place in a vacuum drying oven to remove the air bubbles in the dispersion, and the whole process is completed under an ice-water bath;
[0027] 3. The mixed solution obtained in step 2 was pre-polymerized f...
Embodiment 2
[0029] 1. Prepare 25mL of graphene oxide dispersion liquid with a mass fraction of 0.6%, and inject nitrogen gas for 15min, and heat to 70°C;
[0030] 2. Place the dispersion liquid obtained in step 1 in an ice-water bath, and pass nitrogen gas for 5 minutes, weigh 15% of the mass of the dispersion liquid, and add acrylamide, a hydrophilic monomer, into the dispersion liquid, stir and dissolve, and then add 0.4% of the mass of the dispersion liquid % accelerator tetramethylethylenediamine, stir and disperse evenly, and place in a vacuum drying oven to remove the air bubbles in the dispersion, and the whole process is completed under an ice-water bath;
[0031] 3. Pre-polymerize the mixed solution obtained in step 2 for 2 hours in an ice bath, and then transfer it to a 60° C. oven for polymerization for 12 hours to obtain a graphene nanocomposite hydrogel.
Embodiment 3
[0033] 1. Inject nitrogen gas into 25mL deionized water for 15min, and heat to 70°C; weigh 0.565g N-isopropylacrylamide, 0.03g N,N-dimethylbisacrylamide and 0.03g potassium persulfate in turn Adding it into the graphene oxide dispersion, and reacting for 15 minutes under a nitrogen atmosphere, to obtain a graphene oxide-loaded microgel composite nanomaterial dispersion.
[0034] 2. Place the dispersion liquid obtained in step 1 in an ice-water bath, and pass nitrogen gas for 5 minutes, weigh 15% of the mass of the dispersion liquid, and add acrylamide, a hydrophilic monomer, into the dispersion liquid, stir and dissolve, and then add 0.4% of the mass of the dispersion liquid % accelerator tetramethylethylenediamine, stir and disperse evenly, and place in a vacuum drying oven to remove the air bubbles in the dispersion, and the whole process is completed under an ice-water bath;
[0035] 3. Pre-polymerize the mixed solution obtained in step 2 for 2 hours in an ice bath, and the...
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