Summary of the invention
For above-mentioned technical problem of the prior art, the invention provides a kind of ultraviolet curing organic silicon parting agent and preparation method thereof, described this ultraviolet curing organic silicon parting agent and preparation method thereof solve organosilicon coating of the prior art due to solidification value higher, the base material for non-refractory can cause the technical problem of product generation sex change.
The invention provides a kind of ultraviolet curing organic silicon parting agent, be made up of the raw material of following weight part:
Amido silicon oil 100 parts,
Glycidyl methacrylate 2-15 part,
Reactive thinner 5-100 part,
Antioxidant 0.1-2 part,
High viscosity methyl-silicone oil 1-8 part,
Light trigger 0.1-10 part,
Solvent 100-300 part.
Further, the ammonia value of described amido silicon oil is 0.7-1, and kinematic viscosity is at 10000 ~ 200000mPas.
Further, an amino side-chain of described full-bodied amido silicon oil there is an amino group or have two or three amino groups.
Further, described reactive thinner refers to that UV curing field has the reactive monomer of acrylic acid groups or methacrylic acid group, and described reactive thinner is mono-functional reactive's monomer or the reactive monomer containing more than 2 or 2 functional groups.
Further, described antioxidant is the compound that polyatomic phenol has anti-oxidant function, such as Resorcinol, tertiary butyl Pyrogentisinic Acid etc.
Further, described methyl-silicone oil is the methyl-silicone oil that dimethyl silicone oil or methyl phenyl silicone oil or side chain are replaced by polyethers or long chain alkane.
Further, described light trigger refers to the compound that can produce under UV-irradiation and have initiation free radical.
Further, described solvent is selected from the mixture of the one or more than one in sherwood oil, gasoline, benzene,toluene,xylene, ethylbenzene or hexanaphthene.
Further, described high viscosity methyl-silicone oil is the methyl-silicone oil that dimethyl silicone oil or methyl phenyl silicone oil or side chain are replaced by polyethers or long chain alkane, and its range of viscosities is between 10000CTS to 1000000CTS.
Further, described reactive thinner includes but not limited to methyl acrylate, ethyl propenoate, butyl acrylate, methyl methacrylate, β-dimethyl-aminoethylmethacrylate, butyl methacrylate, tri (propylene glycol) diacrylate, Triethylene glycol diacrylate, neopentylglycol diacrylate, hexanediyl ester, Viscoat 295 or glycerol tri-acrylate.
Further, described light trigger be 2-hydroxy-2-methyl-1-phenyl-1-acetone (be called for short: 1173), 1-hydroxycyclohexyl phenyl ketone (be called for short: 184), 2-methyl-2-(4-morpholinyl)-1-[4-(methylthio group) phenyl]-1-acetone (be called for short: 907), 1-(4-morpholinyl phenyl)-2-(dimethyl amine)-2-benzyl-1-butanone (be called for short: 369) or benzophenone (be called for short: BP).
Present invention also offers the preparation method of above-mentioned a kind of ultraviolet curing organic silicon parting agent, it is characterized in that: take amido silicon oil according to weight ratio, glycidyl methacrylate, reactive thinner, antioxidant, high viscosity methyl-silicone oil, light trigger, solvent, by amido silicon oil, glycidyl methacrylate, antioxidant, solvent adds in a reaction vessel, react under the condition of 20 ~ 60 DEG C, after reacting completely, by reactive thinner, high viscosity methyl-silicone oil, light trigger adds wherein again, stir, obtain a kind of ultraviolet curing organic silicon parting agent.
Methyl-silicone oil of the present invention slowly can penetrate into coatingsurface and form film after coating curing, thus reduces the surface tension of coating further, promotes anti-stick dirt effect.When coating is as friction surface, the methyl-silicone oil that supplementary coatingsurface is worn can be continued.Described solvent mainly rises and dissolves and dilute amido silicon oil, glycidyl methacrylate, the effect of high viscosity methyl-silicone oil, for parting agent mixing, reaction provides convenient, be convenient to the thin paint film of formation one when parting agent is constructed simultaneously, described thin paint film mainly refers to that its thickness is below 5 microns, especially at 0.3 micron to 1.5 micrometer ranges, if described thin paint film is prepared in the substrate surface of porous or many defects, how whether apertures and defect structure and size change, described parting agent can be partially filled full hole and defect structure, also can filling orifice and defect structure completely.
A kind of ultraviolet curing organic silicon parting agent of the present invention is when applying, the modes such as spraying, brushing can be adopted to coat on the extexines such as metal, pottery, glass, paper, plastics, textiles, after solvent evaporates, under adopting UV-irradiation, solidify release coating.Described parting agent solvent evaporates process can adopt forced-air blast, infrared drying, vacuumize etc., and mode is strengthened.
Photosensitive group and silicone resin are obtained by reacting the organosilane monomer of photosensitivity by the present invention, then can solidify in normal temperature environment under light trigger and UV-irradiation, avoid and need high temperature curing process, have saved the energy.This parting agent solidification value is low, and can mate with full automatic photocuring production line, save energy, base material adaptation type is good.
A kind of ultraviolet curing organic silicon parting agent provided by the invention is applicable to use as release coating for outside surfaces such as metal, pottery, glass, paper, plastics, textiless, compared with the organosilicon needing hot setting, has expanded range of application.
The present invention compares with prior art, and its technical progress is significant.The present invention's employing connects methacrylate functional and is transformed into polymerisable photosensitive resin on silicone resin, thus under normal temperature open environment, just can realize the solidification of silicone release agent, solidification value is low, may be used for the UV curing process of serialization coating, the coating transparent obtained is colourless, can produce good release effect, peeling force is low, water resistant oil pickup ability is strong, and can be applied to the extexines such as metal, pottery, glass, use range is extensive.
Embodiment
Below by specific examples, the present invention is described in detail.
Embodiment 1
A kind of ultraviolet curing organic silicon parting agent, be made up of the raw material of following weight part: 150 parts, amido silicon oil 100 parts (ammonia value 0.7-1, kinematic viscosity: 150000mPas), glycidyl methacrylate 10 parts, hexanediyl ester 10 parts, Resorcinol 0.2 part, 1000000CTS high viscosity methyl-silicone oil 5 parts, 1-hydroxycyclohexyl phenyl ketone 3 parts, No. 92 gasoline.
A kind of preparation method of ultraviolet curing organic silicon parting agent is as follows:
By in amido silicon oil 100 parts, glycidyl methacrylate 10 parts, Resorcinol 0.2 part, No. 92 gasoline 150 parts of input mixing kettles, stirring at normal temperature is spent the night, then hexanediyl ester 10 parts, 1000000CTS high viscosity methyl-silicone oil 5 parts, 1-hydroxycyclohexyl phenyl ketone 3 parts is added under agitation, be uniformly mixed, obtain a kind of ultraviolet curing organic silicon parting agent of the present invention.
Above-mentioned ultraviolet curing organic silicon parting agent, when applying, can adopt the modes such as spraying, brushing to coat on metal, pottery, glass, paper, plastics, textiles, after solvent evaporates, solidify under UV-irradiation, obtain silicone release coating.
Wax of the present invention sliding sense silicone release agent sticking power can reach 1 grade, and surface tension is low, release effective, and print resistance can be good.
Embodiment 2
A kind of ultraviolet curing organic silicon parting agent, be made up of the raw material of following weight part: amido silicon oil 100 parts (ammonia value 0.6-0.8, kinematic viscosity: 10000mPas), glycidyl methacrylate 5 parts, tri (propylene glycol) diacrylate 20 parts, Tert. Butyl Hydroquinone 0.1 part, 500000CTS high viscosity methyl-silicone oil 10 parts, 100 parts, 2-hydroxy-2-methyl-1-phenyl-1-acetone 2 parts, No. 92 gasoline.
A kind of preparation method of ultraviolet curing organic silicon parting agent is as follows:
By in amido silicon oil 100 parts, glycidyl methacrylate 5 parts, tertiary butyl Pyrogentisinic Acid 0.1 part, No. 92 gasoline 100 parts of input mixing kettles, stirring at normal temperature is spent the night. then add tri (propylene glycol) diacrylate 20 parts, 500000CTS high viscosity methyl-silicone oil 10 parts, 2 parts, 2-hydroxy-2-methyl-1-phenyl-1-acetone under agitation, be uniformly mixed, obtain a kind of ultraviolet curing organic silicon parting agent of the present invention.
Above-mentioned ultraviolet curing organic silicon parting agent, when applying, can adopt the modes such as spraying, brushing to coat on metal, pottery, glass, paper, plastics, textiles, after solvent evaporates, solidify under UV-irradiation, obtain silicone release coating.
Wax of the present invention sliding sense silicone release agent sticking power can reach 1 grade, and surface tension is low, release effective, and print resistance can be good.