CN106752325A - The preparation method of ITO material printing ink paints - Google Patents
The preparation method of ITO material printing ink paints Download PDFInfo
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- CN106752325A CN106752325A CN201510832318.0A CN201510832318A CN106752325A CN 106752325 A CN106752325 A CN 106752325A CN 201510832318 A CN201510832318 A CN 201510832318A CN 106752325 A CN106752325 A CN 106752325A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
- C09D11/033—Printing inks characterised by features other than the chemical nature of the binder characterised by the solvent
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
- C09D11/037—Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
- C09D11/102—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
Abstract
The invention discloses the preparation method of ITO material printing ink paints, including following operation：1）Polyester modification methyl phenyl silicone resin, titanium dioxide, barium sulfate, silica and glass dust grinding distribution are obtained into primary product；2）To dispersant and silane coupler etc. is added in primary product, grinding distribution obtains secondary product；3）To polyether modified siloxane and organic silicon defoamer is added in secondary product again, stirring obtains ink host；4）To HMMM resin is added in ink host, optimization host is obtained through 200 mesh filter screen filtering and dischargings after grinding distribution；5）To dimethylbenzene and cyclohexanone is added in optimization host, stirring obtains ITO material printing ink paints.Using ink obtained in the present invention while resistance to elevated temperatures is ensured, possess good printability and paint film property.
Description
Technical field
The present invention relates to technical field of ink, more particularly, to the preparation method of ITO material printing ink paints.
Background technology
Electronic product intellectuality is the trend of era development, and as touch screen is in the extensive use in the fields such as smart mobile phone, panel computer, touch screen industry is developed rapidly.And integrated capacitor formula touch screen（OGS）Electronic product intelligent terminal ultrathin demand can to the full extent be met, be the inevitable choice of following touch screen High Tier Brand terminal.OGS touch screen is the plating ITO conducting films in ink film layer, and because ITO coating process need to be completed under 280 DEG C ~ 300 DEG C high temperature, thus touch screen ink need to have excellent resistance to elevated temperatures.
High temperature resistant touch screen ink is main to be made up of the part such as link stuff, pigment, filler and auxiliary agent, according to the application field and performance requirement of ink, each part of ink is well mixed according to certain ratio, order, by reaching certain fineness after wetting and dispersing, grinding, then it is diluted using suitable solvent, to adjust the solid content and viscosity of ink.But, under the premise of the existing high temperature resistant ink with unorganic glass as printing ground is difficult to keep high high-temp stability preferable, while having good physical and mechanical properties and chemical-resistant reagent corrosive nature concurrently.For example, some high temperature resistant ink has good heat resistance and adhesive force, but its silk screen printing process is relatively costly, is so unfavorable for industrially being widely used；Some high temperature resistant ink be then with good resistance to chemical corrosion, adhesive force and hardness, but its heat resisting temperature is limited, hard to bear 200 DEG C of baking.
The content of the invention
The purpose of the present invention is the defect for overcoming above-mentioned prior art, there is provided the preparation method of ITO material printing ink paints, and ink possesses good printability and paint film property while resistance to elevated temperatures is ensured as obtained in the preparation method.
The purpose of the present invention is achieved through the following technical solutions：
The preparation method of ITO material printing ink paints, including following operation：
1）Take in appropriate polyester modification methyl phenyl silicone resin, titanium dioxide, barium sulfate, silica and glass dust addition refiner, by the rotating speed grinding distribution 30min of 2000 ~ 2500r/min, obtain primary product, it is standby；
2）To operation 1）Appropriate dispersant, silane coupler, OPEO, modified chlorinated polypropylene, polyether modified siloxane and organic silicon defoamer are added in the primary product of gained, by the rotating speed grinding distribution 60min of 2000 ~ 2500r/min, secondary product is obtained, it is standby；
3）To operation 2）Appropriate polyether modified siloxane and organic silicon defoamer is added in the secondary product of gained again, 30min is stirred by the rotating speed of 350 ~ 500r/min, obtain ink host, it is standby；
4）To operation 3）Appropriate HMMM resin is added in the ink host of gained, by the rotating speed grinding distribution 15min of 800 ~ 1000r/min, through 200 mesh filter screen filtering and dischargings, obtains optimizing host, it is standby；
5）To operation 4）Appropriate dimethylbenzene and cyclohexanone is added in the optimization host of gained, 30min is stirred by the rotating speed of 350 ~ 500r/min, obtain ITO material printing ink paints；
The quality proportioning of each constituent of ITO materials printing ink paint is：52 ~ 68 parts of polyester modification methyl phenyl silicone resin, 25 ~ 40 parts of titanium dioxide, 1.5 ~ 4 parts of barium sulfate, silica 1 .5 ~ 4 part, 2 ~ 5 parts of glass dust, 1.5 ~ 6 parts of dimethylbenzene, 1.5 ~ 6 parts of cyclohexanone, 1.3 ~ 6.5 parts of HMMM resin, 1 ~ 5 part of OPEO, 1 ~ 5 part of modified chlorinated polypropylene, 0.5 ~ 1 part of silane coupler, 0.5 ~ 2 part of dispersant, 0.5 ~ 1 part of polyether modified siloxane, 0.5 ~ 1 part of organic silicon defoamer.
Link stuff is the most critical part of ink, directly decides the quality of ink coating quality.On the one hand, as the liquid components of ink, link stuff is the carrier of the fixed substances such as pigment, filler, and color stuffing is dispersed in wherein, and the scattered effect of parcel is played to color stuffing, ink is had appropriate rheological property；On the other hand, link stuff, by its drying and forming-film, enables ink paint film to be securely attached to stock surface as the main film forming substance of ink, while the physico-chemical property of link stuff also directly determines the combination property of ink film layer.For high temperature resistant ink, its link stuff must possess excellent heat resistance, so can just obtain the good ink film layer of smooth, colour retention, otherwise can then thermally decompose at high temperature, cause the bad phenomenons such as cracking ink film layer, efflorescence or discoloration.Though there can be the place of respective excellent performance due to single resin, but there are some performance deficiencies again simultaneously, thus present invention selection polyester modification methyl phenyl silicone resin is with effectively with reference to the advantage of different materials, overcome respective shortcoming, it not only has the excellent heat endurance of methyl phenyl silicone resin, also with the preferable pliability of linear polyesters.The effect of pigment is mainly covering, protection and decorates, while the various physical and chemical performances of ink film layer can also be improved, improves adhesive force and mechanical strength, hiding rare, chemical-resistant reagent stability of ink film layer etc..From titanium dioxide as pigment, it not only has high covering power, whiteness high, strong mechanical strength to the present invention, is also equipped with excellent heat resistance, high temperature colour retention, low heat conductivity.
Filler has the basic materialization property of pigment, and it can increase the heat resistance of ink film, adjusts the rheological characteristic and thixotropy of ink, improves the physical mechanical strength of film layer.The present invention is filler from barium sulfate, silica and glass powder with low melting point.Because barium sulfate particle is small, can be free in reticulated void of the titanium dioxide formed in ink, and will not be with the link stuff resin chemically reactive in ink, dispersiveness of the titanium dioxide in ink can so be improved, effectively reduce chemical reagent and the destruction caused by spreading is seen through in paint film, thus as the increase of barium sulfate consumption can improve chemical reagent-resistant performance.Due to silica nanometer grade particles yardstick, can enter in the space of resin tridimensional network, improve the compactness of paint film, reduce infiltration and diffusion of the chemical reagent to paint film, improve water-fast, the chemical reagent-resistant performance of paint film.Glass dust can improve the hardness of paint film due to the higher hardness of itself.Curing agent can improve the mechanical strength and chemical reagent-resistant performance of varnish.Relative to unguyed agent, the performance such as adhesive force, hardness, resistant to acetone wiping, alkali resistance of paint film is improved after addition curing agent, and present invention selection HMMM resin is used as curing agent.
Selection polyether modified siloxane is mainly the rheological characteristic of regulation ink liquid as levelling agent, so that in drying and forming-film, ink coating surface can be made complete, smooth and good luster.Modified silicon class levelling agent can have good compatibility with ink varnish, and it has excellent heat resistance, low-yellowing during high temperature, while also having good surface tension adjustment, the surface tension of ink liquid can be effectively reduced, ink is had preferable wetability to ground.Bubble and foam can be produced in ink preparation, can so cause coating out-of-flatness, such as pin hole, shrinkage cavity, flake drawback occur, the present invention is by adding organic silicon defoamer to solve the above problems.Silane coupler is mainly used as the bridge between organic resin and inorganic ground, and resin paint film can be enable preferably to be coupled with inorganic ground, forms the binder course of ground-coupling agent-resin, can so improve mechanical property, caking property of ink paint film etc..In the preparation process of ink, dispersant can effectively prevent from reuniting between color stuffing particle, ink is uniformly dispersed, best in quality.
With the increase of organic silicon defoamer consumption, the problems such as flake can be eliminated, but coating surface can be caused when consumption is excessive the drawbacks such as shrinkage cavity, pit occur on the contrary, thus the present invention controls at 0.5 ~ 1 part its mass fraction.When barium sulfate adds excess, adhesive force can be caused to decline on the contrary, thus by the control of its mass fraction at 1.5 ~ 4 parts.When glass dust adds excess, paint film adhesion can be caused to decline because resin can not be disperseed cladding, thus by the control of its mass fraction at 2 ~ 5 parts.Due to silica surface can it is larger, when its content is higher, no dispersant carry out it is scattered in the case of easily reunite, so then can to ink performance generation negative influence, thus by its mass fraction control at 1.5 ~ 4 parts.
Further, the mass fraction of organosilicon performed polymer is 62% in the polyester modification methyl phenyl silicone resin；The mass fraction of titanium dioxide is 96% in the titanium dioxide.As the increase of organosilicon performed polymer content, Si-O-Si structure protective layers are enriched with coating surface, internal structure is set not to be destroyed, thus heat endurance increase.But with the increase of organosilicon performed polymer content, coating adhesion is on a declining curve with hardness.Consider, when organosilicon performed polymer content reaches 62%, composite paint film prepared by the invention at 300 DEG C of high temperature without xanthochromia, and paint film to amplify 100 times of observation surfaces under metallographic microscope complete, without the appearance of the phenomenons such as any crackle, discoloration.Titanium dioxide mass fraction is that the oil absorption of 96% titanium dioxide is low, while average dynamics is small, this ensure that good dispersiveness, may be such that polyester modification methyl phenyl silicone resin preferably forms protective layer on its surface, and then improve resistance to thermo oxidative stability.
Further, the HMMM resin accounts for the 5% of the polyester modification methyl phenyl silicone resin quality.With the increase of HMMM resin consumption, the physical and mechanical properties and endurance of film have further raising, but the high temperature colour retention of coating declines.And when the consumption of HMMM resin accounts for the 5% of polyester modification methyl phenyl silicone resin quality, coating colour retention is excellent, physical and mechanical properties and chemical reagent-resistant performance are good.
Further, the dimethylbenzene and the mass ratio of the cyclohexanone are 1：1.
Further, the titanium dioxide and the mass ratio of the polyester modification methyl phenyl silicone resin are 0.6:1.Relatively low pigment can improve ink adhesion, endurance and resistance to chalking etc.；Pigment higher can improve the covering power of ink, using when can reduce the consumption of ink.When pigment is 0.6:When 1, preferably, adhesive force is 0 grade to white ink covering power, and hardness is 4H, and, without coming off, without curling, resistance to ITO etching solutions 2h is unchanged, and 1.5h is toasted at 300 DEG C of high temperature resistant without xanthochromia without cracking for water boiling resistance 1h.
Further, the fineness of the barium sulfate is 300nm；The fineness of the silica is 200nm；The fineness of the glass dust is 1.3nm.
To realize preferable combination property, further, it is obtained by the raw material of following quality proportioning：60 parts of polyester modification methyl phenyl silicone resin, 36 parts of titanium dioxide, 2.4 parts of barium sulfate, silica 1 .8 parts, 3 parts of glass dust, 2 parts of dimethylbenzene, 2 parts of cyclohexanone, 3 parts of HMMM resin, 2 parts of OPEO, 1.5 parts of modified chlorinated polypropylene, 0.6 part of silane coupler, 0.6 part of dispersant, 0.8 part of polyether modified siloxane, 0.6 part of organic silicon defoamer.Using ink obtained in the present invention in 300 DEG C of baking 1.5h of high temperature without xanthochromia, paint film does not ftracture, 0 grade of adhesive force, hardness 5H, water boiling resistance 1h paint films are unchanged, and alkaline-resisting 2h paint films are unchanged, resistance to ITO etching solutions 24h paint films are unchanged, and resistant to acetone is wiped 50 times, and paint film is without coming off.
Further, the organic silicon defoamer is modified polyorganosiloxane；The silane coupler is A187；The dispersant is modified polyurethane high polymer.In the present invention, modified polyorganosiloxane contains aerosil composition can make defoaming capacity be strengthened, specific mechanism is that the bimolecular film layer of bubble can not soak aerosil solids, causes its local surface tension unstable and causes bimolecular film layer to rupture.A187 can effectively improve adhesive force of the paint film to ground.Modified polyurethane high polymer can effectively prevent from reuniting between color stuffing particle on the premise of ensuring that ink high temperature colour retention is excellent.
The invention has the advantages that：Using ITO materials printing ink paint obtained in the present invention in 300 DEG C of baking 1.5h of high temperature without xanthochromia, paint film does not ftracture, 0 grade of adhesive force, hardness 5H, water boiling resistance 1h paint films are unchanged, and alkaline-resisting 2h paint films are unchanged, resistance to ITO etching solutions 24h paint films are unchanged, and resistant to acetone is wiped 50 times, and paint film is without coming off.It can be seen that, using ink obtained in the present invention while resistance to elevated temperatures is ensured, possess good printability and paint film property.Wherein, from polyester modification methyl phenyl silicone resin as link stuff, it not only has the excellent heat endurance of methyl phenyl silicone resin, also with the preferable pliability of linear polyesters.From titanium dioxide as pigment, it not only has high covering power, whiteness high, strong mechanical strength, is also equipped with excellent heat resistance, high temperature colour retention, low heat conductivity.It is filler from barium sulfate, silica and glass powder with low melting point, increases the heat resistance of ink film, adjust the rheological characteristic and thixotropy of ink, improves the physical mechanical strength of film layer.From dimethylbenzene and cyclohexanone as solvent, can further improve the performances such as varnish viscosity, drying varniss speed, levelability, glossiness, adhesive force.From HMMM resin as curing agent, the performances such as adhesive force, hardness, resistant to acetone wiping, the alkali resistance of varnish can be improved.It is mainly the rheological characteristic of regulation ink liquid as levelling agent from polyether modified siloxane, so that in drying and forming-film, ink coating surface can be made complete, smooth and good luster.From modified polyorganosiloxane as organic silicon defoamer, the problems such as can preferably improve coating out-of-flatness, pin hole, shrinkage cavity, flake.Silane coupler is mainly used as the bridge between organic resin and inorganic ground, and resin paint film can be enable preferably to be coupled with inorganic ground.Dispersant can effectively prevent from reuniting between color stuffing particle, ink is uniformly dispersed, best in quality.
Specific embodiment
With reference to embodiment, the present invention is described in further detail, but embodiments of the present invention not limited to this.
Embodiment 1
The preparation method of ITO material printing ink paints, including following operation：
1）Take in appropriate polyester modification methyl phenyl silicone resin, titanium dioxide, barium sulfate, silica and glass dust addition refiner, by the rotating speed grinding distribution 30min of 2000 ~ 2500r/min, obtain primary product, it is standby；
2）To operation 1）Appropriate dispersant, silane coupler, OPEO, modified chlorinated polypropylene, polyether modified siloxane and organic silicon defoamer are added in the primary product of gained, by the rotating speed grinding distribution 60min of 2000 ~ 2500r/min, secondary product is obtained, it is standby；
3）To operation 2）Appropriate polyether modified siloxane and organic silicon defoamer is added in the secondary product of gained again, 30min is stirred by the rotating speed of 350 ~ 500r/min, obtain ink host, it is standby；
4）To operation 3）Appropriate HMMM resin is added in the ink host of gained, by the rotating speed grinding distribution 15min of 800 ~ 1000r/min, through 200 mesh filter screen filtering and dischargings, obtains optimizing host, it is standby；
5）To operation 4）Appropriate dimethylbenzene and cyclohexanone is added in the optimization host of gained, 30min is stirred by the rotating speed of 350 ~ 500r/min, obtain ITO material printing ink paints；
The quality proportioning of each constituent of ITO materials printing ink paint is：52 ~ 68 parts of polyester modification methyl phenyl silicone resin, 25 ~ 40 parts of titanium dioxide, 1.5 ~ 4 parts of barium sulfate, silica 1 .5 ~ 4 part, 2 ~ 5 parts of glass dust, 1.5 ~ 6 parts of dimethylbenzene, 1.5 ~ 6 parts of cyclohexanone, 1.3 ~ 6.5 parts of HMMM resin, 1 ~ 5 part of OPEO, 1 ~ 5 part of modified chlorinated polypropylene, 0.5 ~ 1 part of silane coupler, 0.5 ~ 2 part of dispersant, 0.5 ~ 1 part of polyether modified siloxane, 0.5 ~ 1 part of organic silicon defoamer.
Link stuff is the most critical part of ink, directly decides the quality of ink coating quality.On the one hand, as the liquid components of ink, link stuff is the carrier of the fixed substances such as pigment, filler, and color stuffing is dispersed in wherein, and the scattered effect of parcel is played to color stuffing, ink is had appropriate rheological property；On the other hand, link stuff, by its drying and forming-film, enables ink paint film to be securely attached to stock surface as the main film forming substance of ink, while the physico-chemical property of link stuff also directly determines the combination property of ink film layer.For high temperature resistant ink, its link stuff must possess excellent heat resistance, so can just obtain the good ink film layer of smooth, colour retention, otherwise can then thermally decompose at high temperature, cause the bad phenomenons such as cracking ink film layer, efflorescence or discoloration.Though there can be the place of respective excellent performance due to single resin, but there are some performance deficiencies again simultaneously, thus present invention selection polyester modification methyl phenyl silicone resin is with effectively with reference to the advantage of different materials, overcome respective shortcoming, it not only has the excellent heat endurance of methyl phenyl silicone resin, also with the preferable pliability of linear polyesters.The effect of pigment is mainly covering, protection and decorates, while the various physical and chemical performances of ink film layer can also be improved, improves adhesive force and mechanical strength, hiding rare, chemical-resistant reagent stability of ink film layer etc..From titanium dioxide as pigment, it not only has high covering power, whiteness high, strong mechanical strength to the present invention, is also equipped with excellent heat resistance, high temperature colour retention, low heat conductivity.
Filler has the basic materialization property of pigment, and it can increase the heat resistance of ink film, adjusts the rheological characteristic and thixotropy of ink, improves the physical mechanical strength of film layer.The present invention is filler from barium sulfate, silica and glass powder with low melting point.Because barium sulfate particle is small, can be free in reticulated void of the titanium dioxide formed in ink, and will not be with the link stuff resin chemically reactive in ink, dispersiveness of the titanium dioxide in ink can so be improved, effectively reduce chemical reagent and the destruction caused by spreading is seen through in paint film, thus as the increase of barium sulfate consumption can improve chemical reagent-resistant performance.Due to silica nanometer grade particles yardstick, can enter in the space of resin tridimensional network, improve the compactness of paint film, reduce infiltration and diffusion of the chemical reagent to paint film, improve water-fast, the chemical reagent-resistant performance of paint film.Glass dust can improve the hardness of paint film due to the higher hardness of itself.Curing agent can improve the mechanical strength and chemical reagent-resistant performance of varnish.Relative to unguyed agent, the performance such as adhesive force, hardness, resistant to acetone wiping, alkali resistance of paint film is improved after addition curing agent, and present invention selection HMMM resin is used as curing agent.
Selection polyether modified siloxane is mainly the rheological characteristic of regulation ink liquid as levelling agent, so that in drying and forming-film, ink coating surface can be made complete, smooth and good luster.Modified silicon class levelling agent can have good compatibility with ink varnish, and it has excellent heat resistance, low-yellowing during high temperature, while also having good surface tension adjustment, the surface tension of ink liquid can be effectively reduced, ink is had preferable wetability to ground.Bubble and foam can be produced in ink preparation, can so cause coating out-of-flatness, such as pin hole, shrinkage cavity, flake drawback occur, the present invention is by adding organic silicon defoamer to solve the above problems.Silane coupler is mainly used as the bridge between organic resin and inorganic ground, and resin paint film can be enable preferably to be coupled with inorganic ground, forms the binder course of ground-coupling agent-resin, can so improve mechanical property, caking property of ink paint film etc..In the preparation process of ink, dispersant can effectively prevent from reuniting between color stuffing particle, ink is uniformly dispersed, best in quality.
With the increase of organic silicon defoamer consumption, the problems such as flake can be eliminated, but coating surface can be caused when consumption is excessive the drawbacks such as shrinkage cavity, pit occur on the contrary, thus the present invention controls at 0.5 ~ 1 part its mass fraction.When barium sulfate adds excess, adhesive force can be caused to decline on the contrary, thus by the control of its mass fraction at 1.5 ~ 4 parts.When glass dust adds excess, paint film adhesion can be caused to decline because resin can not be disperseed cladding, thus by the control of its mass fraction at 2 ~ 5 parts.Due to silica surface can it is larger, when its content is higher, no dispersant carry out it is scattered in the case of easily reunite, so then can to ink performance generation negative influence, thus by its mass fraction control at 1.5 ~ 4 parts.
Preferably, the mass fraction of organosilicon performed polymer is 62% in the polyester modification methyl phenyl silicone resin；The mass fraction of titanium dioxide is 96% in the titanium dioxide.As the increase of organosilicon performed polymer content, Si-O-Si structure protective layers are enriched with coating surface, internal structure is set not to be destroyed, thus heat endurance increase.But with the increase of organosilicon performed polymer content, coating adhesion is on a declining curve with hardness.Consider, when organosilicon performed polymer content reaches 62%, composite paint film prepared by the invention at 300 DEG C of high temperature without xanthochromia, and paint film to amplify 100 times of observation surfaces under metallographic microscope complete, without the appearance of the phenomenons such as any crackle, discoloration.Titanium dioxide mass fraction is that the oil absorption of 96% titanium dioxide is low, while average dynamics is small, this ensure that good dispersiveness, may be such that polyester modification methyl phenyl silicone resin preferably forms protective layer on its surface, and then improve resistance to thermo oxidative stability.
Preferably, the HMMM resin accounts for the 5% of the polyester modification methyl phenyl silicone resin quality.With the increase of HMMM resin consumption, the physical and mechanical properties and endurance of film have further raising, but the high temperature colour retention of coating declines.And when the consumption of HMMM resin accounts for the 5% of polyester modification methyl phenyl silicone resin quality, coating colour retention is excellent, physical and mechanical properties and chemical reagent-resistant performance are good.
Preferably, the dimethylbenzene and the mass ratio of the cyclohexanone are 1：1.
Preferably, the titanium dioxide and the mass ratio of the polyester modification methyl phenyl silicone resin are 0.6:1.Relatively low pigment can improve ink adhesion, endurance and resistance to chalking etc.；Pigment higher can improve the covering power of ink, using when can reduce the consumption of ink.When pigment is 0.6:When 1, preferably, adhesive force is 0 grade to white ink covering power, and hardness is 4H, and, without coming off, without curling, resistance to ITO etching solutions 2h is unchanged, and 1.5h is toasted at 300 DEG C of high temperature resistant without xanthochromia without cracking for water boiling resistance 1h.
Preferably, the fineness of the barium sulfate is 300nm；The fineness of the silica is 200nm；The fineness of the glass dust is 1.3nm.
To realize preferable combination property, it is preferable that be obtained by the raw material of following quality proportioning：60 parts of polyester modification methyl phenyl silicone resin, 36 parts of titanium dioxide, 2.4 parts of barium sulfate, silica 1 .8 parts, 3 parts of glass dust, 2 parts of dimethylbenzene, 2 parts of cyclohexanone, 3 parts of HMMM resin, 2 parts of OPEO, 1.5 parts of modified chlorinated polypropylene, 0.6 part of silane coupler, 0.6 part of dispersant, 0.8 part of polyether modified siloxane, 0.6 part of organic silicon defoamer.Using ink obtained in the present invention in 300 DEG C of baking 1.5h of high temperature without xanthochromia, paint film does not ftracture, 0 grade of adhesive force, hardness 5H, water boiling resistance 1h paint films are unchanged, and alkaline-resisting 2h paint films are unchanged, resistance to ITO etching solutions 24h paint films are unchanged, and resistant to acetone is wiped 50 times, and paint film is without coming off.
Preferably, the organic silicon defoamer is modified polyorganosiloxane；The silane coupler is A187；The dispersant is modified polyurethane high polymer.In the present invention, modified polyorganosiloxane contains aerosil composition can make defoaming capacity be strengthened, specific mechanism is that the bimolecular film layer of bubble can not soak aerosil solids, causes its local surface tension unstable and causes bimolecular film layer to rupture.A187 can effectively improve adhesive force of the paint film to ground.Modified polyurethane high polymer can effectively prevent from reuniting between color stuffing particle on the premise of ensuring that ink high temperature colour retention is excellent.
Above content is to combine the further description that specific preferred embodiment is made to the present invention, it is impossible to assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, the other embodiment drawn in the case where technical scheme is not departed from should be included within the scope of the present invention.
Claims (8)
- The preparation method of 1.ITO material printing ink paints, it is characterised in that：Including following operation：1）Take in appropriate polyester modification methyl phenyl silicone resin, titanium dioxide, barium sulfate, silica and glass dust addition refiner, by the rotating speed grinding distribution 30min of 2000 ~ 2500r/min, obtain primary product, it is standby；2）To operation 1）Appropriate dispersant, silane coupler, OPEO, modified chlorinated polypropylene, polyether modified siloxane and organic silicon defoamer are added in the primary product of gained, by the rotating speed grinding distribution 60min of 2000 ~ 2500r/min, secondary product is obtained, it is standby；3）To operation 2）Appropriate polyether modified siloxane and organic silicon defoamer is added in the secondary product of gained again, 30min is stirred by the rotating speed of 350 ~ 500r/min, obtain ink host, it is standby；4）To operation 3）Appropriate HMMM resin is added in the ink host of gained, by the rotating speed grinding distribution 15min of 800 ~ 1000r/min, through 200 mesh filter screen filtering and dischargings, obtains optimizing host, it is standby；5）To operation 4）Appropriate dimethylbenzene and cyclohexanone is added in the optimization host of gained, 30min is stirred by the rotating speed of 350 ~ 500r/min, obtain ITO material printing ink paints；The quality proportioning of each constituent of ITO materials printing ink paint is：52 ~ 68 parts of polyester modification methyl phenyl silicone resin, 25 ~ 40 parts of titanium dioxide, 1.5 ~ 4 parts of barium sulfate, silica 1 .5 ~ 4 part, 2 ~ 5 parts of glass dust, 1.5 ~ 6 parts of dimethylbenzene, 1.5 ~ 6 parts of cyclohexanone, 1.3 ~ 6.5 parts of HMMM resin, 1 ~ 5 part of OPEO, 1 ~ 5 part of modified chlorinated polypropylene, 0.5 ~ 1 part of silane coupler, 0.5 ~ 2 part of dispersant, 0.5 ~ 1 part of polyether modified siloxane, 0.5 ~ 1 part of organic silicon defoamer.
- 2. the preparation method of ITO materials printing ink paint according to claim 1, it is characterised in that：The mass fraction of organosilicon performed polymer is 62% in the polyester modification methyl phenyl silicone resin；The mass fraction of titanium dioxide is 96% in the titanium dioxide.
- 3. the preparation method of ITO materials printing ink paint according to claim 1, it is characterised in that：The HMMM resin accounts for the 5% of the polyester modification methyl phenyl silicone resin quality.
- 4. the preparation method of ITO materials printing ink paint according to claim 1, it is characterised in that：The dimethylbenzene is 1 with the mass ratio of the cyclohexanone：1.
- 5. the preparation method of ITO materials printing ink paint according to claim 1, it is characterised in that：The titanium dioxide is 0.6 with the mass ratio of the polyester modification methyl phenyl silicone resin:1.
- 6. the preparation method of ITO materials printing ink paint according to claim 1, it is characterised in that：The fineness of the barium sulfate is 300nm；The fineness of the silica is 200nm；The fineness of the glass dust is 1.3nm.
- 7. the preparation method of ITO materials printing ink paint according to claim 1, it is characterised in that：It is obtained by the raw material of following quality proportioning：60 parts of polyester modification methyl phenyl silicone resin, 36 parts of titanium dioxide, 2.4 parts of barium sulfate, silica 1 .8 parts, 3 parts of glass dust, 2 parts of dimethylbenzene, 2 parts of cyclohexanone, 3 parts of HMMM resin, 2 parts of OPEO, 1.5 parts of modified chlorinated polypropylene, 0.6 part of silane coupler, 0.6 part of dispersant, 0.8 part of polyether modified siloxane, 0.6 part of organic silicon defoamer.
- 8. ITO material printing ink paints according to any one in claim 1 ~ 7, it is characterised in that：The organic silicon defoamer is modified polyorganosiloxane；The silane coupler is A187；The dispersant is modified polyurethane high polymer.
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| CN201510832318.0A CN106752325A (en) | 2015-11-25 | 2015-11-25 | The preparation method of ITO material printing ink paints |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107892839A (en) * | 2017-12-13 | 2018-04-10 | 天津宝兴威科技股份有限公司 | A kind of integrated capacitor formula touch-screen high temperature resistant ink and preparation method thereof |
| CN109082158A (en) * | 2018-10-31 | 2018-12-25 | 深圳市金达盛化工有限公司 | A kind of touch screen high temperature ink and preparation method thereof |
| CN109370300A (en) * | 2018-10-31 | 2019-02-22 | 深圳市金达盛化工有限公司 | A kind of touch display screen ink |
-
2015
- 2015-11-25 CN CN201510832318.0A patent/CN106752325A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107892839A (en) * | 2017-12-13 | 2018-04-10 | 天津宝兴威科技股份有限公司 | A kind of integrated capacitor formula touch-screen high temperature resistant ink and preparation method thereof |
| CN109082158A (en) * | 2018-10-31 | 2018-12-25 | 深圳市金达盛化工有限公司 | A kind of touch screen high temperature ink and preparation method thereof |
| CN109370300A (en) * | 2018-10-31 | 2019-02-22 | 深圳市金达盛化工有限公司 | A kind of touch display screen ink |
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Application publication date: 20170531 |