Summary of the invention
Technical problem to be solved by this invention provides a kind of polysiloxane topcoat for wind power generation equipment.
For the purpose that realizes solving the problems of the technologies described above, a kind of wind power equipment polysiloxane topcoat of the present invention is that colored paint component, second component are that two kinds of components of solidifying agent component consist of by the first component; Wherein first component quality percentage composition is:
Component B is aminoalkoxy silane.
According to acroleic acid modified polysiloxane resin and aminoalkoxy silane mass ratio 8-12: 1 principle is carried out the proportioning of the first and second components, can use after mixing.
Described wetting dispersing agent is the composition of one or more arbitrary proportions among EFKA4061, EFKA4050, the EFKA4060.
Described thixotropic agent be aerosil, polyethylene wax, polyamide wax, bentonite any.
Described sun-proof color stuffing is the composition of one or more arbitrary proportions in Rutile type Titanium Dioxide, everbright fast red, phthalocyanine blue, organic yellow, carbon black, the process white.
Described wear resistant filler is the composition of one or more arbitrary proportions in silica powder, silicon carbide, the corundum.
Described shock-resistant filler is the composition of one or more arbitrary proportions in mica powder, the talcum powder.
Described UV light absorber is any among TINUVIN 384, TINUVIN 1130, the TINUVIN 328.
Described flow agent is any among BYK-354, BYK-355, the BYK-356.
Described hypotoxicity organic solvent is the composition of 1-Methoxy-2-propyl acetate, one or both arbitrary proportions of N-BUTYL ACETATE.
Described acroleic acid modified polysiloxane resin, by Hydroxylated acrylic resin and siloxanyl monomers polyreaction and get, theoretical Si-O-Si mass content is 10-15% after the modification.
Described second component is aminoalkoxy silane, include but not limited to γ-aminopropyl triethoxysilane, γ-aminopropyltrimethoxysilane, N-β (aminoethyl) γ-aminopropyl triethoxysilane and N-β (aminoethyl) γ-aminopropyltrimethoxysilane, can use separately, also being used in combination of arbitrary proportion.
This coating selection acroleic acid modified polysiloxane resin, aminoalkoxy silane, various color stuffing, auxiliary agent and hypotoxicity organic solvent etc. are by reasonably prescription preparation.Polysiloxane is because its special valence bond structure (Si-O-Si), have the advantages such as high-low temperature resistant, weathering resistance, chemical resistance, wear resistance, hydrophobic nature and low surface energy, but exist intensity low, with the deficiency such as base material bad adhesion, with acrylic resin it is carried out modification and can realize maximizing favourable factors and minimizing unfavourable ones.Be base-material by selecting with the equal acroleic acid modified polysiloxane resin of fluorocarbon resin over-all properties, select UV light absorber that its weathering resistance is strengthened, rational allocation color stuffing kind and ratio are to obtain the paint film over-all properties not second to fluorine carbon finishing paint; Select low viscosity propylene acid modified polysiloxane resin, thixotropic agent and hypotoxicity organic solvent; the rational allocation solidifying agent; realize that height contains and the thick film application admittedly; this polysiloxane topcoat for wind power generation equipment is conducive to environment protection than fluorine carbon finishing paint, and can greatly shorten construction period and improve coating efficiency.
These technical schemes can make up mutually or combination, thereby reach better technique effect.For example, the various selection components of coating can be interosculated.
A kind of wind power equipment of the present invention is as follows with the preparation technology of polysiloxane topcoat:
1, first component (colored paint component) preparation technology is as follows:
1) get aequum vinylformic acid polyorganosiloxane resin and add in the dispersion tank, wetting dispersing agent, the thixotropic agent of aequum added wherein, high speed dispersion 15~20 minutes obtains mixture I;
2) under the stirring at low speed, progressively the surplus stocks such as quantitative sun-proof color stuffing, wear resistant filler, shock-resistant filler, UV light absorber, flow agent are added mixture I, high speed dispersion 10~15 minutes, disperse complete, enter sand mill and be ground to fineness≤30 μ m, with obtaining the first component behind the hypotoxicity organic solvent adjusting viscosity, packing gets final product in proportion.
If the combination of the multiple aminoalkoxy silane of 2 solidifying agent mixes in proportion the solidifying agent of aequum and namely gets the second component; If single aminoalkoxy silane of planting then need not to mix; Then packing gets final product in proportion.
3, first component and component B are mixed by formula rate, slaking approximately after 5-10 minute, namely gets wind power equipment acroleic acid modified polysiloxane finish paint, and this coating can adopt brushing, roller coating and spraying application.For guaranteeing the application outward appearance, recommend to use spraying application, the thickest 200 μ m that reach of paint film.
Wind power equipment polysiloxane topcoat of the present invention, technical indicator and detected result see the following form 1:
Table 1
By adopting technique scheme, the present invention has following beneficial effect:
1, polysiloxane topcoat for wind power generation equipment weather resistance of the present invention is outstanding, anti-ly scrape, shock resistance, wear-resisting, low temperature resistant and excellent anti-corrosion performance, have advantages of that hydrophobic nature and surface energy are low, over-all properties is not second to present wind power equipment fluorine carbon finishing paint;
2, one-pass film-forming reaches as high as 200 μ m, can greatly shorten construction period and improve operating efficiency;
3, solid content is high, without cured with isocyanates, is conducive to environment protection, possesses significantly " efficiently, economy, environmental protection " advantage than fluorine carbon finishing paint.
Embodiment
A kind of wind power equipment of the present invention is specified with embodiment with polysiloxane topcoat, but be not limited to this specific embodiment.Proportioning among the embodiment is calculated according to the mass fraction.
Embodiment 1:
Second: γ-aminopropyl triethoxysilane
First: second=100: 6
Wherein, acroleic acid modified polysiloxane resin, the Si-O-Si theoretical content is 10-15%.
The preparation method is:
1, first component:
1) get aequum vinylformic acid polyorganosiloxane resin and add in the dispersion tank, wetting dispersing agent, the thixotropic agent of aequum added wherein, high speed dispersion 20 minutes obtains mixture I;
2) under the stirring at low speed, the quantitative sun-proof color stuffing that progressively will select, wear resistant filler, shock-resistant filler, UV light absorber, flow agent add mixture I, high speed dispersion 15 minutes, disperse complete, enter sand mill and be ground to fineness≤30 μ m, with obtaining the first component behind the organic solvent adjusting viscosity, packing gets final product in proportion.
If the combination of the multiple aminoalkoxy silane of 2 solidifying agent mixes in proportion the solidifying agent of aequum and namely gets the second component; If solidifying agent is single aminoalkoxy silane of planting, then need not to mix; Then packing gets final product in proportion.
3, first component and component B are mixed by formula rate, slaking approximately after 5-10 minute, namely gets wind power equipment acroleic acid modified polysiloxane finish paint, and this coating can adopt brushing, roller coating and spraying application.For guaranteeing the application outward appearance, recommend to use spraying application.
Prepared coating property meets the technical specification of table 1, and specific targets see Table 2.
Embodiment 2:
Second: γ-aminopropyltrimethoxysilane
First: second=100: 6.5
Wherein, acroleic acid modified polysiloxane resin, the Si-O-Si theoretical content is 10-15%.
The preparation method is with embodiment 1.
Prepared coating property meets the technical specification of table 1, and specific targets see Table 2.
Embodiment 3:
Second: N-β (aminoethyl) γ-aminopropyl triethoxysilane
First: second=100: 6.3
Wherein, acroleic acid modified polysiloxane resin, the Si-O-Si theoretical content is 10-15%.
The preparation method is with embodiment 1.
Prepared coating property meets the technical specification of table 1, and specific targets see Table 2.
Embodiment 4:
Second: N-β (aminoethyl) γ-aminopropyltrimethoxysilane
First: second=100: 5.2
Wherein, acroleic acid modified polysiloxane resin, the Si-O-Si theoretical content is 10-15%.
The preparation method is with embodiment 1.
Prepared coating property meets the technical specification of table 1, and specific targets see Table 2.
Embodiment 5:
Second: γ-aminopropyltrimethoxysilane
First: second=100: 5.1
Wherein, acroleic acid modified polysiloxane resin, the Si-O-Si theoretical content is 10-15%.
The preparation method is with embodiment 1.
Prepared coating property meets the technical specification of table 1, and specific targets see Table 2.
Table 2 embodiment 1-5 coating property
Remarks: testing method and standard such as table 1.