Nanometer reinforced, non-transition-layer, organosilicone and low-surface-energy type antifouling paint and preparation method thereof
A nano-reinforced, low surface energy technology, applied in antifouling/underwater coatings, coatings, paints containing biocides, etc., can solve problems such as low strength, poor adhesion, complicated construction and difficulty, and achieve weakened binding force , reduce adhesion, easy to fall off by itself
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Embodiment 1
[0064] Add 80 parts of α, ω-dihydroxy polydimethylsiloxane with a viscosity of 10000mPa·s and 8 parts of fumed silicon dioxide into the dispersion tank of the dispersing machine in proportion, disperse at 4000rpm for 30min at high speed, and then add 2 parts The multi-walled carbon nanotubes continued to disperse at high speed for 15 minutes to obtain nanometer pre-dispersed slurry;
[0065] Component A Add each composition to the dispersing tank of the dispersing machine sequentially in proportion, stir and disperse at a high speed of 4000 rpm for 30 minutes, and then grind it with a sand mill until the fineness is less than 40 μm, then pack it into a tank for use.
[0066] Components B and C are mixed according to the ratio and canned for use.
[0067] Before use, mix and stir evenly according to the ratio of A:B:C=20:4:1, and obtain a silicone low surface energy antifouling coating after coating and curing.
[0068] The composition of group A:
[0069]
[0070]
[0...
Embodiment 2
[0079] Add 75 parts of α, ω-dihydroxypolydimethylsiloxane with a viscosity of 10000mPa·s and 8 parts of fumed silicon dioxide into the dispersion tank of the dispersing machine in proportion, disperse at 4000rpm for 30min at high speed, and then add 2 parts The single-walled carbon nanotubes continued to disperse at a high speed for 15 minutes to obtain a nano-predispersed slurry;
[0080] Component A Add each composition to the dispersing tank of the dispersing machine sequentially in proportion, stir and disperse at a high speed of 5000 rpm for 30 minutes, and then grind it with a sand mill until the fineness is less than 40 μm, then pack it into a tank for use.
[0081] Components B and C are mixed according to the ratio and canned for use.
[0082] Before use, mix and stir evenly according to the ratio of A:B:C=18:4:1, and obtain a silicone low surface energy antifouling coating after coating and curing.
[0083] The composition of group A:
[0084]
[0085] Component...
Embodiment 3
[0093] Proportionally, 50 parts of α, ω-dihydroxypolydimethylsiloxane with a viscosity of 10000mPa·s and 40 parts of α, ω-dihydroxypolydimethylsiloxane with a viscosity of 2800mPa·s (purchased from Shandong University Yi Chemical Co., Ltd.) and 6 parts of fumed silica were added to the dispersing tank of the disperser, dispersed at a high speed for 30 minutes at 3500 rpm, then added 4 parts of nano-zinc oxide and continued to disperse at a high speed for 15 minutes to obtain a nano-predispersed slurry;
[0094] For component A, add each composition into the dispersing tank of the dispersing machine in sequence in proportion, stir and disperse at a high speed of 3500 rpm for 30 minutes, and then grind it with a sand mill until the fineness is less than 40 μm, then pack it into a tank for use.
[0095] Components B and C are mixed according to the ratio and canned for use.
[0096] Before use, mix and stir evenly according to the ratio of A:B:C=16:3:0.5, and obtain a silicone lo...
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