Bacteriostatic and seaweed adhesion-resistant silane modified polyampholyte hydrogel high-adhesion coating and preparation method thereof
A polyampholyte, silane modification technology, applied in coatings, antifouling/underwater coatings, paints containing biocides, etc., can solve the problem of weak adhesion between silane and substrate, non-electrolyte hydrophilic polymers Weak hydration and other problems, to achieve the effect of excellent mechanical properties
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Embodiment 1
[0032] Step 1): Plasma cleaning the glass substrate washed with deionized water and dried for 10 minutes to obtain a hydroxylated substrate surface.
[0033] Step 2): Measure 80ml of ethanol, 20ml of deionized water, and 0.2ml of acetic acid in a square container, add 2wt% MEMO relative to the mass of the solvent, and mix well.
[0034] Step 3): Put the glass substrate in step 1) into the mixed solution in step 2), dip-coat at room temperature for 2 hours, and then dry at 60° C. for 30 minutes.
[0035] Step 4): The glass substrate obtained in step 3) is combined with untreated glass and a silicone gasket to form a mold, and preheated in an oven at 90° C. for 30 minutes.
[0036] Step 5): Weigh 3.1122g DAC (55mol%), 2.4093g NaSS (45mol%), 0.0039g MBAA (0.1mol%) and 0.0037g KA (0.1mol%) respectively in the beaker, add 10ml deionized water after 70 °C and stirred in a water bath for 15 minutes to obtain a uniform prepolymer solution.
[0037] Step 6): Add 15 μl MEMO to the pre...
Embodiment 2
[0040] Step 1): Plasma cleaning the glass substrate washed with deionized water and dried for 10 minutes to obtain a hydroxylated substrate surface.
[0041] Step 2): Measure 80ml of ethanol, 20ml of deionized water, and 0.2ml of acetic acid in a square container, add 2wt% MEMO and mix well.
[0042] Step 3): Put the glass substrate in step 1) into the mixed solution in step 2), dip-coat at room temperature for 2 hours, and then dry at 60° C. for 30 minutes.
[0043] Step 4): The glass substrate obtained in step 3) is combined with untreated glass and a silicone gasket to form a mold, and preheated in an oven at 90° C. for 30 minutes.
[0044] Step 5): Weigh 2.9055g DAC (51.33mol%), 2.6062g NaSS (48.66mol%), 0.0039g MBAA (0.1mol%) and 0.0037g KA (0.1mol%) in a beaker, add 10ml deionized After water, stir in a water bath at 70°C for 15 minutes to obtain a uniform prepolymer solution.
[0045] Step 6): Add 19 μl MEMO to the prepolymer solution obtained in step 5), mix it unifo...
Embodiment 3
[0048] Step 1): Plasma cleaning the glass substrate washed with deionized water and dried for 10 minutes to obtain a hydroxylated substrate surface.
[0049] Step 2): Measure 80ml of ethanol, 20ml of deionized water, and 0.2ml of acetic acid in a square container, add 2wt% MEMO and mix well.
[0050] Step 3): Put the glass substrate in step 1) into the mixed solution in step 2), dip-coat at room temperature for 2 hours, and then dry at 60° C. for 30 minutes.
[0051] Step 4): The glass substrate obtained in step 3) is combined with untreated glass and a silicone gasket to form a mold, and preheated in an oven at 90° C. for 30 minutes.
[0052] Step 5): Weigh 2.8292g DAC (50mol%), 2.677g NaSS (50mol%), 0.0039g MBAA (0.1mol%) and 0.0037g KA (0.1mol%) respectively in a beaker, add 10ml of deionized water Stir in a water bath at 70°C for 15 minutes to obtain a uniform prepolymer solution.
[0053] Step 6): Add 20 μl MEMO to the prepolymer solution obtained in step 5), mix it eve...
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