A kind of acrylic modified polysiloxane coating and preparation method thereof

Abstract

The invention relates to the technical field of heavy-duty anti-corrosion coatings, in particular to an acrylic modified polysiloxane coating and a preparation method thereof. Including ingredient 1 and ingredient 2, the ingredient 1 includes by weight: 20-30% of acrylic resin containing active hydrogen functional group, 10-20% of polysiloxane intermediate containing phenyl / methyl functional group, pigment and filler 20-30%, rheology aid 0.1-0.5%, compound environmental protection solvent 5-20%, leveling agent 0.2-1%, methyl methacrylate 10-15%, butyl acrylate 3-7%. The second ingredient includes, in parts by weight: 20-30% of organosiloxane resin containing active hydroxyl groups, 5-10% of organosiloxane containing reactive glycidoxy and methoxy groups, 0.1-10% of catalyst 0.5%. By adding polysiloxane resin, the present invention can effectively maintain color and luster for a long time, and is used as a part of high-performance anti-corrosion coating system; the present invention provides a variety of functional groups for the system, which catalyze each other and react with each other, and have high crosslinking density. The product has the characteristics of long adaptation period, fast drying and good chemical resistance.

Description

technical field

[0001] The invention relates to the technical field of heavy-duty anti-corrosion coatings, in particular to an acrylic modified polysiloxane coating and a preparation method thereof. Background technique

[0002] Polysiloxane coatings are divided into acrylic polysiloxane and epoxy polysiloxane. The gloss and color persistence of acrylic-modified polysiloxane coatings are significantly better than typical polyurethane topcoats, and the gloss and color retention is also better than that of first-generation epoxy-modified polysiloxane topcoats. better. In addition, acrylic modified polysiloxane coatings have the same corrosion resistance and slightly better mechanical properties than traditional epoxy resin technology. At present, there are mainly two kinds of acrylic polysiloxanes: one is the addition and hydrolytic condensation between acrylic resin containing double bond and siloxane, and the other is hydrolytic cross-linking between acrylic resin polysilo...

Examples

Embodiment 1

[0022] An acrylic modified polysiloxane coating, comprising ingredient one and ingredient two, the ingredient one comprises by weight: 20-30% of acrylic resin containing active hydrogen functional groups, polysilicon containing phenyl / methyl functional groups 10-20% of oxane intermediate, 20-30% of pigment and filler, 0.1-0.5% of rheology aid, 5-20% of compound environmental protection solvent, 0.2-1% of leveling agent, 10-15% of methyl methacrylate , Butyl acrylate 3-7%;

[0023] The second ingredient includes by weight: 20-30% of organosiloxane resin containing active hydroxyl groups, 5-10% of organosiloxane containing reactive glycidoxy and methoxy groups, 0.1-10% catalyst 0.5%.

[0024] Preferably, the leveling agent is a polyether-modified polymethylalkylsiloxane solution.

[0025] Preferably, the catalyst is an organic titanium compound.

[0026] Preferably, the components in the first ingredient are, in parts by weight: 20% of acrylic resin containing active hydrogen...

Embodiment 2

[0034] An acrylic modified polysiloxane coating, comprising ingredient one and ingredient two, the ingredient one comprises by weight: 20-30% of acrylic resin containing active hydrogen functional groups, polysilicon containing phenyl / methyl functional groups 10-20% of oxane intermediate, 20-30% of pigment and filler, 0.1-0.5% of rheology aid, 5-20% of compound environmental protection solvent, 0.2-1% of leveling agent, 10-15% of methyl methacrylate , Butyl acrylate 3-7%;

[0035] The second ingredient includes by weight: 20-30% of organosiloxane resin containing active hydroxyl groups, 5-10% of organosiloxane containing reactive glycidoxy and methoxy groups, 0.1-10% catalyst 0.5%.

[0036] Preferably, the leveling agent is a polyether-modified polymethylalkylsiloxane solution.

[0037] Preferably, the catalyst is an organic titanium compound.

[0038] Preferably, the components in the first ingredient are, in parts by weight: 21% of acrylic resin containing active hydrogen...

Embodiment 3

[0046] An acrylic modified polysiloxane coating, comprising ingredient one and ingredient two, the ingredient one comprises by weight: 20-30% of acrylic resin containing active hydrogen functional groups, polysilicon containing phenyl / methyl functional groups Oxane intermediates 10-20%, pigments and fillers 20-30%, rheology additives 0.1-0.5%, composite environmental solvent 5-20%, leveling agent 0.2-1%, methyl methacrylate 10-15% , Butyl acrylate 3-7%;

[0047] The second ingredient includes by weight: 20-30% of organosiloxane resin containing active hydroxyl groups, 5-10% of organosiloxane containing reactive glycidoxy and methoxy groups, 0.1-10% of catalyst 0.5%.

[0048] Preferably, the leveling agent is a polyether-modified polymethylalkylsiloxane solution.

[0049] Preferably, the catalyst is an organic titanium compound.

[0050] Preferably, the components in the first ingredient are, in parts by weight: 25% of acrylic resin containing active hydrogen functional grou...

technical field

[0001] The invention relates to the technical field of heavy-duty anti-corrosion coatings, in particular to an acrylic modified polysiloxane coating and a preparation method thereof. Background technique

[0002] Polysiloxane coatings are divided into acrylic polysiloxane and epoxy polysiloxane. The gloss and color persistence of acrylic-modified polysiloxane coatings are significantly better than typical polyurethane topcoats, and the gloss and color retention is also better than that of first-generation epoxy-modified polysiloxane topcoats. better. In addition, acrylic modified polysiloxane coatings have the same corrosion resistance and slightly better mechanical properties than traditional epoxy resin technology. At present, there are mainly two kinds of acrylic polysiloxanes: one is the addition and hydrolytic condensation between acrylic resin containing double bond and siloxane, and the other is hydrolytic cross-linking between acrylic resin polysilo...

Examples

Embodiment 1

[0022] An acrylic modified polysiloxane coating, comprising ingredient one and ingredient two, the ingredient one comprises by weight: 20-30% of acrylic resin containing active hydrogen functional groups, polysilicon containing phenyl / methyl functional groups 10-20% of oxane intermediate, 20-30% of pigment and filler, 0.1-0.5% of rheology aid, 5-20% of compound environmental protection solvent, 0.2-1% of leveling agent, 10-15% of methyl methacrylate , Butyl acrylate 3-7%;

[0023] The second ingredient includes by weight: 20-30% of organosiloxane resin containing active hydroxyl groups, 5-10% of organosiloxane containing reactive glycidoxy and methoxy groups, 0.1-10% catalyst 0.5%.

[0024] Preferably, the leveling agent is a polyether-modified polymethylalkylsiloxane solution.

[0025] Preferably, the catalyst is an organic titanium compound.

[0026] Preferably, the components in the first ingredient are, in parts by weight: 20% of acrylic resin containing active hydrogen...

Embodiment 2

[0034] An acrylic modified polysiloxane coating, comprising ingredient one and ingredient two, the ingredient one comprises by weight: 20-30% of acrylic resin containing active hydrogen functional groups, polysilicon containing phenyl / methyl functional groups 10-20% of oxane intermediate, 20-30% of pigment and filler, 0.1-0.5% of rheology aid, 5-20% of compound environmental protection solvent, 0.2-1% of leveling agent, 10-15% of methyl methacrylate , Butyl acrylate 3-7%;

[0035] The second ingredient includes by weight: 20-30% of organosiloxane resin containing active hydroxyl groups, 5-10% of organosiloxane containing reactive glycidoxy and methoxy groups, 0.1-10% catalyst 0.5%.

[0036] Preferably, the leveling agent is a polyether-modified polymethylalkylsiloxane solution.

[0037] Preferably, the catalyst is an organic titanium compound.

[0038] Preferably, the components in the first ingredient are, in parts by weight: 21% of acrylic resin containing active hydrogen...

Embodiment 3

[0046] An acrylic modified polysiloxane coating, comprising ingredient one and ingredient two, the ingredient one comprises by weight: 20-30% of acrylic resin containing active hydrogen functional groups, polysilicon containing phenyl / methyl functional groups Oxane intermediates 10-20%, pigments and fillers 20-30%, rheology additives 0.1-0.5%, composite environmental solvent 5-20%, leveling agent 0.2-1%, methyl methacrylate 10-15% , Butyl acrylate 3-7%;

[0047] The second ingredient includes by weight: 20-30% of organosiloxane resin containing active hydroxyl groups, 5-10% of organosiloxane containing reactive glycidoxy and methoxy groups, 0.1-10% of catalyst 0.5%.

[0048] Preferably, the leveling agent is a polyether-modified polymethylalkylsiloxane solution.

[0049] Preferably, the catalyst is an organic titanium compound.

[0050] Preferably, the components in the first ingredient are, in parts by weight: 25% of acrylic resin containing active hydrogen functional grou...

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