Method for preparing hydrophilic antifogging coating
An anti-fog coating and hydrophilic technology, which is applied in the field of preparation of hydrophilic anti-fog coatings, can solve the problems of poor anti-fog performance, poor dispersion of anti-fog coatings, and long curing time of coatings, so as to promote photocatalysis and photodegradation effect, enhanced anti-fog performance, and increased cured crosslink density
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example 1
[0019] In parts by weight, weigh 45 parts of deionized water, 15 parts of 2% sodium alginate solution by mass fraction, 10 parts of 2% polycaprolactone chloroform solution by mass fraction, 5 parts of gemini quaternary ammonium salt YND1233 and 35 parts The pH is 7.0. Disodium hydrogen phosphate-sodium dihydrogen phosphate buffer solution is placed in a beaker, stirred and mixed for 10 minutes, and left to age to obtain a mixed solution. The mass fraction of 10% calcium chloride solution is added dropwise at a volume ratio of 1:10 Into the mixed solution, control the dropping rate at 3mL / min. After the dropwise addition is completed, continue to stir and mix and mature for 3h, centrifuge at 3500r / min and collect the lower precipitate, rinse with deionized water for 3 times, vacuum Freeze-dried and ground through a 200-mesh sieve to obtain modified microsphere powder; in parts by weight, weigh 45 parts of ethylene glycol ether, 10 parts of modified microsphere powder, 5 parts of...
example 2
[0021] In parts by weight, weigh 47 parts of deionized water, 17 parts of 2% sodium alginate solution by mass fraction, 12 parts of 2% polycaprolactone chloroform solution by mass fraction, 7 parts of gemini quaternary ammonium salt YND1233 and 37 parts The pH is 7.0. Disodium hydrogen phosphate-sodium dihydrogen phosphate buffer solution is placed in a beaker, stirred and mixed for 11 minutes, and left to age to obtain a mixed solution. The mass fraction of 10% calcium chloride solution is added dropwise at a volume ratio of 1:10 Into the mixed solution, control the dropping rate at 3mL / min. After the dropwise addition is completed, continue to stir and mix and ripen for 4h, centrifuge at 3750r / min and collect the lower precipitate, rinse with deionized water for 4 times, vacuum Freeze-dried and ground through a 200-mesh sieve to obtain a modified microsphere powder; in parts by weight, weigh 47 parts of ethylene glycol ether, 12 parts of modified microsphere powder, 6 parts o...
example 3
[0023] In parts by weight, weigh 50 parts of deionized water, 20 parts of 2% sodium alginate solution by mass fraction, 15 parts of 2% polycaprolactone chloroform solution by mass fraction, 8 parts of 12-3-12 type Gemini quarter Ammonium salt and 40 parts of pH 7.0 disodium hydrogen phosphate-sodium dihydrogen phosphate buffer solution were placed in a beaker, stirred and mixed for 12 minutes, and left to age to obtain a mixed solution. The volume ratio was 1:10, and the mass fraction was 10% chlorine Add the calcium chloride solution dropwise to the mixed solution, and control the dropping rate at 3mL / min. After the dropwise addition is completed, continue to stir and mix and mature for 5h, centrifuge at 4000r / min and collect the lower precipitate, rinse with deionized water After 5 times, vacuum freeze-dry and grind through a 200-mesh sieve to obtain modified microsphere powder; in parts by weight, weigh 50 parts of ethylene glycol ether, 15 parts of modified microsphere powd...
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