Low surface energy nano polyurethane anti-fouling paint and preparation method thereof
An anti-fouling paint, low surface energy technology, applied in the field of paint, can solve environmental problems and other problems
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Embodiment 1
[0046] In the present embodiment, by mass percentage, the composition of component one is as follows:
[0047] Organosilicon-modified acrylic resin accounts for 44%; polydimethylsiloxane resin accounts for 10%; body pigment and filler accounts for 25%, and described body pigment and filler are made of titanium dioxide, iron oxide red, superfine talcum powder and precipitated sulfuric acid Composed of barium, the average particle size of the body pigment and filler is 3 microns, according to titanium dioxide: red iron oxide: superfine talcum powder: precipitated barium sulfate=1:4:6:20. Fluorosilane-modified nano-SiO 2 1% (according to fluorosilane modified nano-SiO 2 Pure SiO in concentrate 2 10% organic solvent, said organic solvent is xylene; additives accounted for 10% (3% leveling agent BYK306, 3% anti-settling agent BYK 410 and 4% dispersant BYK110).
[0048] In the present embodiment, the preparation method of nano polyurethane antifouling coating is as follows:
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Embodiment 2
[0059] In the present embodiment, by mass percentage, the composition of component one is as follows:
[0060] Silicone-modified acrylic resin accounts for 40%; polydimethylsiloxane resin accounts for 5%; body pigment and filler accounts for 30%, and the body pigment and filler are composed of titanium dioxide, iron oxide red, superfine talcum powder and precipitated sulfuric acid Composed of barium, the average particle size of the body pigment and filler is 2 microns, according to titanium dioxide: red iron oxide: superfine talcum powder: precipitated barium sulfate=1:3:7:20; nano-SiO modified by fluorosilane 2 5% (according to fluorosilane modified nano-SiO 2 Pure SiO in concentrate 2 accounted for); organic solvent accounts for 15%, and the organic solvent is xylene; auxiliary agent accounts for 5% (2% leveling agent BYK300, 2% anti-settling agent BYK 420 and 1% dispersant BYK130).
[0061] In the present embodiment, the preparation method of nano polyurethane antifoulin...
Embodiment 3
[0071] In the present embodiment, by mass percentage, the composition of component one is as follows:
[0072] Organosilicon-modified acrylic resin accounts for 40%; polydimethylsiloxane resin accounts for 3%; and body pigment and filler accounts for 24%. Composed of barium, the average particle size of the extender pigment is 4 microns. According to titanium dioxide: red iron oxide: ultrafine talc powder: precipitated barium sulfate = 1:3:8:16; fluorosilane modified nano-SiO 2 Accounted for 3% (according to fluorosilane modified nano-SiO 2 Pure SiO in concentrate 2 15% organic solvent, said organic solvent is n-butyl acetate; additives accounted for 15% (5% leveling agent BYK307, 5% anti-settling agent BYK 431 and 5% dispersant BYK141).
[0073] In the present embodiment, the preparation method of nano polyurethane antifouling coating is as follows:
[0074] 1) Silicone-modified acrylic resin is used as the matrix, and fluorosilane-modified nano-SiO is added 2 Concentrat...
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