CN106752324A - A kind of touch screen ink varnish - Google Patents
A kind of touch screen ink varnish Download PDFInfo
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- CN106752324A CN106752324A CN201510832316.1A CN201510832316A CN106752324A CN 106752324 A CN106752324 A CN 106752324A CN 201510832316 A CN201510832316 A CN 201510832316A CN 106752324 A CN106752324 A CN 106752324A
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- methyl phenyl
- phenyl silicone
- silicone resin
- touch screen
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Abstract
The invention discloses a kind of touch screen ink varnish, it is obtained by the raw material of following quality proportioning：52 ~ 68 parts of polyester modification methyl phenyl silicone resin, 1 ~ 5 part of dimethylbenzene, 1 ~ 5 part of cyclohexanone, 1.3 ~ 6.5 parts of HMMM resin, 1 ~ 5 part of OPEO, 1 ~ 5 part of modified chlorinated polypropylene, 1 ~ 3 part of polytetrafluoroethylwax wax.From polyester modification methyl phenyl silicone resin as link stuff, it not only has the excellent heat endurance of methyl phenyl silicone resin to the present invention, also with the preferable pliability of linear polyesters.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.The present invention has the advantages that adhesive force is good, hardness is high, water resistance and chemical reagent resistance are stable while resistance to elevated temperatures is ensured.
Description
Technical field
The present invention relates to technical field of ink, more particularly, to a kind of touch screen ink varnish.
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.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 a kind of touch screen ink varnish, while resistance to elevated temperatures is ensured, has the advantages that adhesive force is good, hardness is high, water resistance and chemical reagent resistance are stable.
The purpose of the present invention is achieved through the following technical solutions：
A kind of touch screen ink varnish, is obtained by the raw material of following quality proportioning：52 ~ 68 parts of polyester modification methyl phenyl silicone resin, 1 ~ 5 part of dimethylbenzene, 1 ~ 5 part of cyclohexanone, 1.3 ~ 6.5 parts of HMMM resin, 1 ~ 5 part of OPEO, 1 ~ 5 part of modified chlorinated polypropylene, 1 ~ 3 part of polytetrafluoroethylwax wax.
Varnish is typically made up of link stuff resin, curing agent, solvent etc., and high temperature resistant ink varnish must possess excellent heat resistance, i.e., the paint film coating nondiscolouring that works in high temperature environments, do not ftracture, it is non-foaming.Link stuff is the most critical part of ink, directly decides the quality of ink coating quality.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.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.Due to that will decline with the high temperature colour retention of the increase of hardener dose, coating, thus its mass fraction need to be controlled.Solvent is that have volatile component in varnish, although it is not the film forming matter in ink, its dissolubility and rate of volatilization directly affect the performances such as varnish viscosity, drying varniss speed, levelability, glossiness, adhesive force.The dissolubility of solvent is mainly and is determined by the polarity of solvent and link stuff resin.According to similar compatibility rule, present invention selection dimethylbenzene and cyclohexanone are used as solvent.After varnish obtained in the present invention is made into coating, by realizing drawing：At 300 DEG C of high temperature, colour retention is splendid before and after high temperature, low-yellowing, and adhesive force can reach 0 grade, hardness 4H, and resistant to acetone wipes 50 secondary coatings without coming off, and without discoloration, alkaline-resisting 2H is unchanged, and resistance to ITO etching solutions 24h coatings are without coming off.
Further, the mass fraction of organosilicon performed polymer is 62% in the polyester modification methyl phenyl silicone resin.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.
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.
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, 1.5 parts of dimethylbenzene, 1.5 parts of cyclohexanone, 3 parts of HMMM resin, 2 parts of OPEO, 1.5 parts of modified chlorinated polypropylene, 1.5 parts of polytetrafluoroethylwax wax.
The invention has the advantages that：From polyester modification methyl phenyl silicone resin as link stuff, it not only has the excellent heat endurance of methyl phenyl silicone resin to the present invention, also with the preferable pliability of linear polyesters.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.From dimethylbenzene and cyclohexanone as solvent, can further improve the performances such as varnish viscosity, drying varniss speed, levelability, glossiness, adhesive force.The present invention has the advantages that adhesive force is good, hardness is high, water resistance and chemical reagent resistance are stable while resistance to elevated temperatures is ensured.
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
A kind of touch screen ink varnish, is obtained by the raw material of following quality proportioning：52 ~ 68 parts of polyester modification methyl phenyl silicone resin, 1 ~ 5 part of dimethylbenzene, 1 ~ 5 part of cyclohexanone, 1.3 ~ 6.5 parts of HMMM resin, 1 ~ 5 part of OPEO, 1 ~ 5 part of modified chlorinated polypropylene, 1 ~ 3 part of polytetrafluoroethylwax wax.
Varnish is typically made up of link stuff resin, curing agent, solvent etc., and high temperature resistant ink varnish must possess excellent heat resistance, i.e., the paint film coating nondiscolouring that works in high temperature environments, do not ftracture, it is non-foaming.Link stuff is the most critical part of ink, directly decides the quality of ink coating quality.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.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.Due to that will decline with the high temperature colour retention of the increase of hardener dose, coating, thus its mass fraction need to be controlled.Solvent is that have volatile component in varnish, although it is not the film forming matter in ink, its dissolubility and rate of volatilization directly affect the performances such as varnish viscosity, drying varniss speed, levelability, glossiness, adhesive force.The dissolubility of solvent is mainly and is determined by the polarity of solvent and link stuff resin.According to similar compatibility rule, present invention selection dimethylbenzene and cyclohexanone are used as solvent.After varnish obtained in the present invention is made into coating, by realizing drawing：At 300 DEG C of high temperature, colour retention is splendid before and after high temperature, low-yellowing, and adhesive force can reach 0 grade, hardness 4H, and resistant to acetone wipes 50 secondary coatings without coming off, and without discoloration, alkaline-resisting 2H is unchanged, and resistance to ITO etching solutions 24h coatings are without coming off.
Preferably, the mass fraction of organosilicon performed polymer is 62% in the polyester modification methyl phenyl silicone resin.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, foaming, discoloration.
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.
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, 1.5 parts of dimethylbenzene, 1.5 parts of cyclohexanone, 3 parts of HMMM resin, 2 parts of OPEO, 1.5 parts of modified chlorinated polypropylene, 1.5 parts of polytetrafluoroethylwax wax.
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 (5)
1. a kind of touch screen ink varnish, it is characterised in that：It is obtained by the raw material of following quality proportioning：52 ~ 68 parts of polyester modification methyl phenyl silicone resin, 1 ~ 5 part of dimethylbenzene, 1 ~ 5 part of cyclohexanone, 1.3 ~ 6.5 parts of HMMM resin, 1 ~ 5 part of OPEO, 1 ~ 5 part of modified chlorinated polypropylene, 1 ~ 3 part of polytetrafluoroethylwax wax.
2. a kind of touch screen ink varnish 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.
3. a kind of touch screen ink varnish 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. a kind of touch screen ink varnish according to claim 1, it is characterised in that：The dimethylbenzene is 1 with the mass ratio of the cyclohexanone：1.
5. a kind of touch screen ink varnish 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, 1.5 parts of dimethylbenzene, 1.5 parts of cyclohexanone, 3 parts of HMMM resin, 2 parts of OPEO, 1.5 parts of modified chlorinated polypropylene, 1.5 parts of polytetrafluoroethylwax wax.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510832316.1A CN106752324A (en) | 2015-11-25 | 2015-11-25 | A kind of touch screen ink varnish |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510832316.1A CN106752324A (en) | 2015-11-25 | 2015-11-25 | A kind of touch screen ink varnish |
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| CN106752324A true CN106752324A (en) | 2017-05-31 |
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| CN201510832316.1A Pending CN106752324A (en) | 2015-11-25 | 2015-11-25 | A kind of touch screen ink varnish |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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- 2015-11-25 CN CN201510832316.1A patent/CN106752324A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Application publication date: 20170531 |
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| WD01 | Invention patent application deemed withdrawn after publication |