A kind of preparation method of MXene-based electromagnetic shielding coating material
A technology of electromagnetic shielding and coating materials, applied in conductive coatings, coatings, etc., to achieve the effect of widening applications and low cost
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Embodiment 1
[0030] The preparation method of the MXene-based electromagnetic shielding coating material provided by this embodiment is realized through the following steps:
[0031] Step 1. Disperse MXene in ultrapure water and sonicate for 10 minutes to obtain an MXene dispersion with a concentration of 6 mg / mL.
[0032] Step 2: Add 50% dopamine hydrochloride into the MXene dispersion liquid, and react with magnetic stirring at 200 r / min for 20 min.
[0033] Step 3: Add Tris-HCl buffer solution to the mixed solution in Step 2 to adjust its pH to 8.5, and finally stir and react at 60° C. for 24 hours, and centrifuge to obtain solution A.
[0034] Step 4. Disperse 2 g of polyvinyl alcohol in 400 mL of ultrapure water, heat to 100° C., and stir at 200 r / min for 30 min to fully dissolve it.
[0035] Step five, the FeCl of 24.8g 3 ·6H 2 O was added to the polyvinyl alcohol solution in Step 4, and fully stirred at 200r / min, then 2.8mL of pyrrole monomer was added to the above mixed solution...
Embodiment 2
[0040] The MXene-based electromagnetic shielding coating material and preparation method provided in this embodiment are achieved through the following steps:
[0041] Step 1: Disperse MXene in ultrapure water and ultrasonically treat it for 10 minutes to obtain an MXene dispersion with a mass concentration of 3 mg / ml.
[0042] Step 2: Add 20% dopamine hydrochloride into the MXene dispersion, and react with magnetic stirring at 200 r / min for 10 min.
[0043] Step 3: Add Tris-HCl buffer solution to the mixed solution in Step 2 to adjust its pH to 8.5, and finally stir and react at 60° C. for 24 hours, and centrifuge to obtain solution A.
[0044] Step 4: Disperse 1 g of polyvinyl alcohol in 200 mL of ultrapure water, place it at room temperature for 12 hours, then heat it to 85° C., and stir at 100 r / min for 30 minutes to fully dissolve it.
[0045] Step five, 12.4g FeCl 3 6H 2 O was added to the polyvinyl alcohol solution in Step 4, and fully stirred at 100r / min, then 1.4mL...
Embodiment 3
[0051] The MXene-based electromagnetic shielding coating material and preparation method provided in this embodiment are achieved through the following steps:
[0052] Step 1: Disperse MXene in ultrapure water and ultrasonically treat it for 5 minutes to obtain an MXene dispersion with a mass concentration of 5 mg / ml.
[0053] Step 2: Add 5% dopamine hydrochloride into the MXene dispersion liquid, and react with magnetic stirring at 100 r / min for 10 min.
[0054] Step 3: Add Tris-HCl buffer solution to the mixed solution in Step 2 to adjust its pH to 8.5, and finally stir and react at 60° C. for 24 hours, and centrifuge to obtain solution A.
[0055] Step 4: Disperse 0.5 g of polyvinyl alcohol in ultrapure water at 85° C. and stir at 200 r / min for 30 min to fully dissolve it.
[0056] Step five, 6.2g FeCl 3 6H 2 O was added to the polyvinyl alcohol solution in step 4, and fully stirred at a speed of 100r / min, then 700μL of pyrrole monomer was added to the above mixed soluti...
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Abstract
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