CN103408938B - A kind of addition type liquid silicone rubber compound used for manufacturing pad printing rubber head and preparation method thereof - Google Patents
A kind of addition type liquid silicone rubber compound used for manufacturing pad printing rubber head and preparation method thereof Download PDFInfo
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Abstract
The present invention proposes a kind of addition type liquid silicone rubber compound used for manufacturing pad printing rubber head and preparation method thereof, including component A base glue and B component base glue, component A base glue is 6～12:1 with the mass ratio of B component base glue, component A base glue includes octyl group bat printing base glue, the first octyl group 830 base glue, vinyl 1000cP silicone oil and platinum complex, and B component base glue includes the second octyl group 830 base glue, 0.17% containing hydrogen silicone oil and methyl ethylene cyclotetrasiloxane；After preparation method comprises the steps: at 50～70 DEG C, component A base glue is stirred 10min, stand, after subsequently B component base glue being stirred 10min at 50～70 DEG C, it is 1:(6～12 with the component A base glue obtained according to mass ratio) mix, it is addition type liquid silicone rubber compound used for manufacturing pad printing rubber head.The addition type liquid silicone rubber compound used for manufacturing pad printing rubber head that the present invention proposes its there is extraordinary bat printing effect, ink is had more preferably affinity, linear shrinkage ratio is low, and service life is long, and preparation method is simple, is suitable for large-scale production.
Description
Technical field
The present invention relates to technical field of rubber material, particularly relate to a kind of addition type liquid silicone rubber compound used for manufacturing pad printing rubber head and preparation method thereof.
Background technology
For making the silicone rubber of shift printing rubber head, it includes condensed type and add-on type, if condensed type, the shortcoming of its maximum is at room temperature will could complete cure after long-time, production cycle is long, efficiency is low, needing to improve curingprocess rate by heating or being humidified, but temperature is not to be exceeded 65 DEG C, otherwise the combination property of vulcanizate can decline, catalyst used by condensed type glue is organotin, being poisonous even toxicity, not environmentally, and its catalysis has duality, the positive reaction of the most catalysed curing rubber, the back reaction-degraded of the most catalysed curing glue.So, shift printing rubber head made by condensed type glue, and linear shrinkage ratio is bigger than add-on type glue, and goods become fragile with the prolongation of the time of use is the most hardening, and service life is shorter.
Common addition-type silicon rubber has more advantage than condensed type glue, and for curingprocess rate, it is more sensitive to temperature, by heating can short vulcanization, easy to control, but the defect of its maximum is bad adhesion, little to the adhesiveness of pad-transfer printing ink, also unsuitable for making shift printing rubber head.
Summary of the invention
It is an object of the present invention to provide a kind of addition type liquid silicone rubber compound used for manufacturing pad printing rubber head, it has extraordinary bat printing effect, has more preferably affinity to ink, and intermiscibility is preferable, and linear shrinkage ratio is low, and service life is long.
It is a further object to provide the preparation method of a kind of addition type liquid silicone rubber compound used for manufacturing pad printing rubber head, its preparation method is simple, it is easy to large-scale production.
The technical scheme is that and be achieved in that:
A kind of addition type liquid silicone rubber compound used for manufacturing pad printing rubber head, including component A base glue and B component base glue, described component A base glue is 6～12:1 with the mass ratio of described B component base glue, described component A base glue includes octyl group bat printing base glue, the first octyl group 830 base glue, vinyl 1000cP silicone oil and platinum complex, and described B component base glue includes the second octyl group 830 base glue, 0.17% containing hydrogen silicone oil and methyl ethylene cyclotetrasiloxane.
Described first octyl group 830 base glue is identical with described second octyl group 830 base glue component, and in terms of quality component, it includes precipitated silica 150～170 parts, vinyl 500cP silicone oil 250～300 parts and chain alkyl siloxanes 50～70 parts.
Preferably, in terms of quality component, described component A base glue includes octyl group bat printing base glue 80～90 parts, the first octyl group 830 base glue 15～20 parts, vinyl 1000cP silicone oil 15～25 parts and platinum complex 0.1～0.2 part.
Preferably, in terms of quality component, described B component base glue includes the second octyl group 830 base glue 6～7 parts, 0.17% containing hydrogen silicone oil 6～7 parts and methyl ethylene cyclotetrasiloxane 2～4 parts.
Further, described chain alkyl siloxanes is octyl group trimethoxy silane or octyltri-ethoxysilane.
Further, in terms of quality component, described component A base glue includes described first octyl group 830 base glue 130～140 parts, also includes silicon powder 30～50 parts.
Preferably, described component A base glue is 9:1 with the mass ratio of described B component base glue.
The preparation method of a kind of addition type liquid silicone rubber compound used for manufacturing pad printing rubber head, comprises the steps:
2), after described component A base glue being stirred 10min at 50～70 DEG C, stand；
2), after described B component base glue being stirred 10min at 50～70 DEG C, it is 1:(6～12 with the component A base glue obtained in described step 1 according to mass ratio) mix, it is addition type liquid silicone rubber compound used for manufacturing pad printing rubber head.
Preferably, in described step 1, temperature is 50～60 DEG C.
Preferably, in described step 2, temperature is 50～60 DEG C.
The beneficial effect comprise that:
1, the present invention proposes a kind of addition type liquid silicone rubber compound used for manufacturing pad printing rubber head, and it has extraordinary bat printing effect, has more preferably affinity to ink, and intermiscibility is preferable, and linear shrinkage ratio is low, and service life is long；
Even if 2, the present invention proposes a kind of addition type liquid silicone rubber compound used for manufacturing pad printing rubber head it is not added with dimethicone dilution, plasticising also can make colloid not bleed overall performance preferable, shift printing rubber head hardness up to 25 ° of (Shore A hardness) shock strengths 6MPa more than, tearing strength reaches 25KN/m, reach higher level, to adhering well to property of pad-transfer printing ink and transitivity；
3, the preparation method of a kind of addition type liquid silicone rubber compound used for manufacturing pad printing rubber head that the present invention proposes, its preparation method is simple, it is easy to large-scale production.
Detailed description of the invention
The present invention is further illustrated, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments below in conjunction with embodiment.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
Embodiment 1
The preparation method of a kind of addition type liquid silicone rubber compound used for manufacturing pad printing rubber head, comprises the steps:
1), after component A base glue being stirred 10min at 50～70 DEG C, stand；
2), after B component base glue being stirred 10min at 50～70 DEG C, it is 1:(6～12 with the component A base glue obtained in step 1 according to mass ratio) mix, it is addition type liquid silicone rubber compound used for manufacturing pad printing rubber head.
In terms of quality component, component A base glue includes octyl group bat printing base glue 80～90 parts, the first octyl group 830 base glue 15～20 parts, vinyl 1000cP silicone oil 15～25 parts and platinum complex 0.1～0.2 part.Through the present inventor's repetition test, the viscosity of vinyl silicone oil is more than 1000cP, and the big cure time of its viscosity is long, is unfavorable for reaction, and the component A base gum base glue combination property prepared is bad, and therefore selecting viscosity is the vinyl silicone oil of 1000cP.
In terms of quality component, B component base glue includes the second octyl group 830 base glue 6～7 parts, 0.17% containing hydrogen silicone oil 6～7 parts, red mill base 0.6～0.7 part and methyl ethylene cyclotetrasiloxane 2～4 parts.In the present invention, red mill base plays coloration, and it can now be sold by market and be get final product.In the present invention, 0.17% containing hydrogen silicone oil refers to that the mass fraction in silicone oil containing hydrogen is 0.17%.
First octyl group 830 base glue and the second octyl group 830 base glue component are identical, and in terms of quality component, it includes precipitated silica 150～170 parts, vinyl 500cP silicone oil 250～300 parts and chain alkyl siloxanes 50～70 parts.
Precipitated silica is porous material, the available SiO2 nH of its composition2O represents, wherein nH2O is presented in surface hydroxyl.Caustic alkali and Fluohydric acid., water insoluble, solvent and acid (except Fluohydric acid .) can be dissolved in.High temperature resistant, do not fire, tasteless, odorless, there is good electrical insulating property.Precipitated silica is mainly used as natural rubber and elastomeric reinforcing agent, toothpaste abrasives etc..In the present invention, precipitated silica plays half reinforcement, heat conduction and filler thus reduces the effect of cost.
Vinyl 500cP silicone oil is basis glue, reacts with containing hydrogen silicone oil and can generate shift printing rubber.In the present invention, chain alkyl siloxanes can be octyl group trimethoxy silane, 18 carbon back siloxanes or octyltri-ethoxysilane, and preferably chain alkyl siloxanes is octyl group trimethoxy silane in the present embodiment.
In the present embodiment, preferably precipitated silica 150 parts, vinyl 500cP silicone oil 250 parts, octyl group trimethoxy silane 50 parts.
In the present invention, octyl group trimethoxy silane or octyltri-ethoxysilane can produce hydrophobe as surface conditioning agent, such as concrete, glass, inorganic coating or organic filler, methoxyl group active group is utilized to be allowed to hydrophobization with the surface hydroxyl effect of white carbon when carrying out hydrophobic treatment with its dialogue carbon blacksurface, being greatly improved the white carbon dispersibility to sizing material, affinity also can in-situ processing in kneader.Therefore, the present invention uses relatively inexpensive and effective physical method for strengthening.Base glue selects the vinyl silicone oil of low viscosity (such as 500cP～800cP) to make base oil, make the base glue of powder containing quantity about 35% in kneader by usual way with other fillers of precipitated silica octyltri-ethoxysilane, the silicon powder adding the 3000 thermally treated mistakes of mesh the most again is dispersed through to the special base glue uniformly making shift printing rubber in dispersion machine.
The complex of the add-on type liquid silicon rubber for making shift printing rubber head that the present invention proposes, it has extraordinary bat printing effect, ink is had more preferably affinity, intermiscibility is preferable, linear shrinkage ratio is low, service life is long, even if being not added with dimethicone dilution, plasticising also can make colloid not bleed overall performance preferable, common add-on type glue is when making shift printing rubber head, often need to add 201 silicone oil of up to 70%, may bleed, physical property declines, and the add-on type glue made by the present invention, shift printing rubber head hardness up to 25 ° of (Shore A hardness) shock strengths 6MPa more than, tearing strength reaches 25KN/m, reach higher level, to adhering well to property of pad-transfer printing ink and transitivity.
The preparation of the first octyl group 830 base glue comprises the steps:
1) in kneader, put into 500cP vinyl silicone oil 80 parts and octyl group trimethoxy silane 25 parts, precipitated silica 37.5 parts mediate 30min；
2) in the material that step 1 obtains, put into precipitated silica 37.5 parts, after mediating 10min, add vinyl 500cP silicone oil 16 parts；
3) vinyl 500cP silicone oil 16 parts is added after putting into precipitated silica 37.5 parts kneading 10min in the material that step 2 obtains；
4) in the material that step 3 obtains, put into precipitated silica 37.5 parts and octyl group trimethoxy silane 25 parts and seal 30min, after add vinyl 500cP silicone oil 16 parts；
5) when the material in kneader is warming up to 80 DEG C, under not circulating-heating oil condition, mediate 2h, this material is heated to 100 DEG C the most again and mediates 2h, stop heating；
6) start vacuum pump and kneader is evacuated to-0.1MPa maintenance 2h, shovel pot, be warming up to 120 DEG C the most again；
7) start vacuum pump, be evacuated to-0.1MPa, then termination of pumping；
8) in batches by remaining 122 parts of vinyl 500cP silicone oil according to 5,10,15,17,20,25,30 amount, interval time is that 0.5h adds in kneader and mediates, then discharging；
9) being placed in by the material that step 8 obtains in big metal bucket clean, that be dried, disperse 15～30min with dispersion machine, then grind once with three-roller, repetitive operation twice, prepared by the first octyl group 830 base glue.
The component of the first octyl group 830 base glue and the second octyl group 830 base glue is identical with preparation process, and it is same substance.
In terms of quality component, octyl group bat printing base glue includes the first octyl group 830 base glue 130～140 parts and silicon powder 30～50 parts.In the present embodiment, 130 parts of the preferably first octyl group 830 base glue and silicon powder 30 parts.Silicon powder is by natural quartz (SiO2) or vitreous silica (natural quartz amorphous Si O after high-temperature fusion, cooling2) through the micropowder of the multiple tracks processes such as broken, ball milling (or vibration, airflow milling), flotation, pickling purification, high purity water process.Silicon powder is a kind of Inorganic Non-metallic Materials nontoxic, tasteless, free of contamination.In the present invention, silicon powder is that market is now sold.
The preparation process of octyl group bat printing base glue is: is poured into by the first octyl group 830 base glue in the big metal bucket of a certain amount of dress, adds 15 parts of second thermally treated silicon powders, disperse with high speed dispersor.After first low speed, high-speed stirred is thinning to base adhesiveness, remaining silicon powder put into the most every time 5 parts in dispersion machine, when high speed dispersor stirs redispersion 1h to base glue temperature about 100 DEG C, obtain octyl group bat printing base glue.
In this preparation process, heat treatment process is that silicon powder heats under the conditions of temperature 120-140 DEG C 2h, and process of being sieved, and selects the silicon powder of 3000 mesh.
In the present embodiment, in terms of quality component, preferably component A base glue includes 80 parts of octyl group bat printing base glue, the first 15 parts of octyl group 830 base glue, vinyl 1000cP silicone oil 15 parts and platinum complex 0.1 part.In the present invention, first octyl group 830 base glue is the basic glue processing precipitated silica with octyl group front three (second) TMOS, add silicon powder with it again and make octyl group bat printing base glue, viscosity be 500cP and 1000cP vinyl silicone oil with the use of, it can occur hydrosilylation to give the due performance of silicone rubber with containing hydrogen silicone oil under platinum complex is catalyzed, and makes silicone rubber combination property good.
In the present embodiment, preferably B component base glue includes 6 parts of the second octyl group 830 base glue, 0.17% containing hydrogen silicone oil 6 parts, red mill base 0.6 part and methyl ethylene cyclotetrasiloxane 2 parts.
In the preparation process of addition type liquid silicone rubber compound used for manufacturing pad printing rubber head, in step 1, temperature is 50～70 DEG C, mixing temperature in preferred steps 1 is 50 DEG C in the present embodiment, in step 2, temperature is 50～70 DEG C, mixing temperature in preferred steps 2 is 50 DEG C in the present embodiment, and component A base glue is 6:1 with the mass ratio of B component base glue.
In the present invention, used equipment, instrument and instrument are the available equipment of those skilled in the art and instrument, equipment, instrument and instrument used must be clean, and A, B component base glue instrument are wanted special and separated, and material used is the product that market is now sold.
Embodiment 2
Same as in Example 1, difference is:
Chain alkyl siloxanes is octyltri-ethoxysilane, and the first octyl group 830 base glue and the second octyl group 830 base glue component are identical, and in terms of quality component, it includes precipitated silica 160 parts, vinyl 500cP silicone oil 300 parts and octyltri-ethoxysilane 60 parts.
The preparation of the first octyl group 830 base glue comprises the steps:
1) in kneader, put into 500cP vinyl silicone oil 100 parts and octyltri-ethoxysilane 30 parts, precipitated silica 40 parts mediate 30min；
2) in the material that step 1 obtains, put into precipitated silica 40 parts, after mediating 10min, add vinyl 500cP silicone oil 20 parts；
3) vinyl 500cP silicone oil 20 parts is added after putting into precipitated silica 40 parts kneading 10min in the material that step 2 obtains；
4) in the material that step 3 obtains, put into precipitated silica 40 parts and octyltri-ethoxysilane 30 parts and seal 30min, after add vinyl 500cP silicone oil 20 parts；
5) when the material in kneader is warming up to 80 DEG C, under not circulating-heating oil condition, mediate 2h, this material is heated to 100 DEG C the most again and mediates 2h, stop heating；
6) start vacuum pump and kneader is evacuated to-0.1MPa maintenance 2h, shovel pot, be warming up to 120 DEG C the most again；
7) start vacuum pump, be evacuated to-0.1MPa, then termination of pumping；
8) in batches by remaining 140 parts of vinyl 500cP silicone oil according to 5,10,15,17,20,25,30 amount, interval time is that 0.5h adds in kneader and mediates, then discharging；
9) being placed in by product in big metal bucket clean, that be dried, disperse 15～30min with dispersion machine, then grind once with three-roller, repetitive operation twice, prepared by the first octyl group 830 base glue.
The component of the first octyl group 830 base glue and the second octyl group 830 base glue is identical with preparation process, and it is same substance.
In terms of quality component, octyl group bat printing base glue includes 135 parts of the first octyl group 830 base glue and silicon powder 44.4 parts, and its preparation process is same as in Example 1.
Component A base glue includes 82.2 parts of octyl group bat printing base glue, the first 17.2 parts of octyl group 830 base glue, vinyl 1000cP silicone oil 20 parts and platinum complex 0.131 part.
B component base glue includes 6.8 parts of the second octyl group 830 base glue, 0.17% containing hydrogen silicone oil 6.2 parts, red mill base 0.65 part and methyl ethylene cyclotetrasiloxane 2.6 parts.
In the preparation process of addition type liquid silicone rubber compound used for manufacturing pad printing rubber head, the mixing temperature in step 1 is 60 DEG C, and the mixing temperature in step 2 is 60 DEG C, and component A base glue is 7:1 with the mass ratio of B component base glue.
Embodiment 3
Same as in Example 1, difference is:
First octyl group 830 base glue and the second octyl group 830 base glue component are identical, and in terms of quality component, it includes precipitated silica 170 parts, vinyl 500cP silicone oil 270 parts and octyltri-ethoxysilane 70 parts.
The preparation of the first octyl group 830 base glue comprises the steps:
1) in kneader, put into 500cP vinyl silicone oil 90 parts and octyltri-ethoxysilane 35 parts, precipitated silica 42.5 parts mediate 30min；
2) in the material that step 1 obtains, put into precipitated silica 42.5 parts, after mediating 10min, add vinyl 500cP silicone oil 19 parts；
3) vinyl 500cP silicone oil 19 parts is added after putting into precipitated silica 42.5 parts kneading 10min in the material that step 2 obtains；
4) in the material that step 3 obtains, put into precipitated silica 42.5 parts and octyltri-ethoxysilane 35 parts and seal 30min, after add vinyl 500cP silicone oil 19 parts；
5) when the material in kneader is warming up to 80 DEG C, under not circulating-heating oil condition, mediate 2h, this material is heated to 100 DEG C the most again and mediates 2h, stop heating；
6) start vacuum pump and kneader is evacuated to-0.1MPa maintenance 2h, shovel pot, be warming up to 120 DEG C the most again；
7) start vacuum pump, be evacuated to-0.1MPa, then termination of pumping；
8) in batches by remaining 123 parts of vinyl 500cP silicone oil according to 5,10,15,18,20,25,30 amount, interval time is that 0.5h adds in kneader and mediates, then discharging；
9) being placed in by product in big metal bucket clean, that be dried, disperse 15～30min with dispersion machine, then grind once with three-roller, repetitive operation twice, prepared by the first octyl group 830 base glue.
The component of the first octyl group 830 base glue and the second octyl group 830 base glue is identical with preparation process, and it is same substance.
In terms of quality component, octyl group bat printing base glue includes 140 parts of the first octyl group 830 base glue and silicon powder 50 parts, and its preparation process is same as in Example 1.
Component A base glue includes 90 parts of octyl group bat printing base glue, the first 20 parts of octyl group 830 base glue, vinyl 1000cP silicone oil 25 parts and platinum complex 0.2 part.
B component base glue includes 7 parts of the second octyl group 830 base glue, 0.17% containing hydrogen silicone oil 7 parts, red mill base 0.7 part and methyl ethylene cyclotetrasiloxane 4 parts.
In the preparation process of addition type liquid silicone rubber compound used for manufacturing pad printing rubber head, the mixing temperature in step 1 is 70 DEG C, and the mixing temperature in step 2 is 70 DEG C, and component A base glue is 7:1 with the mass ratio of B component base glue.
Embodiment 4
Same as in Example 2, difference is:
In the preparation process of addition type liquid silicone rubber compound used for manufacturing pad printing rubber head, component A base glue is 8:1 with the mass ratio of B component base glue.
Embodiment 5
Same as in Example 2, difference is:
In the preparation process of addition type liquid silicone rubber compound used for manufacturing pad printing rubber head, component A base glue is 9:1 with the mass ratio of B component base glue.
Embodiment 6
Same as in Example 2, difference is:
In the preparation process of addition type liquid silicone rubber compound used for manufacturing pad printing rubber head, component A base glue is 10:1 with the mass ratio of B component base glue.
Embodiment 7
Same as in Example 2, difference is:
In the preparation process of addition type liquid silicone rubber compound used for manufacturing pad printing rubber head, component A base glue is 12:1 with the mass ratio of B component base glue.
Test example 1
The addition type liquid silicone rubber compound used for manufacturing pad printing rubber head preparing embodiment 1～7 measures its performance, according to national standard, it is tested, wherein viscosity is measured by GB5572-1985 by GB/531-1990, elongation at break by GB/T529-2008, shore hardness by GB/T528-2009, tearing strength by GB/T2794-1995, hot strength, showing that its performance comparison table is as shown in table 1, table 1 is the addition type liquid silicone rubber compound used for manufacturing pad printing rubber head performance test contrast table that embodiment 1～7 is prepared.
Table 1
As can be seen from Table 1, to prepare addition type liquid silicone rubber compound used for manufacturing pad printing rubber head performance optimal for embodiment 5.Ink is had more preferably affinity, intermiscibility is preferable, linear shrinkage ratio is low, service life is long, even if being not added with dimethicone dilution, plasticising also can make colloid not bleed overall performance preferable, (common add-on type glue, when making shift printing rubber head, often needs to add 201 silicone oil of up to 70%, may bleed, thing machine declines), and with the present invention make add-on type glue, shift printing rubber head hardness up to 25 ° of (Shore A hardness) shock strengths 6MPa more than, tearing strength reaches 25KN/m, reach higher level, to adhering well to property of pad-transfer printing ink and transitivity.
Test example 2
Embodiment 5 prepares addition type liquid silicone rubber compound used for manufacturing pad printing rubber head now sell the performance of RTV-2 and ALSR with market and contrast, RTV-2 is the abbreviation of double-component liquid silica gel, it is condensed type silicone rubber, it has pollution to environment, therefore the add-on type liquid silicon rubber complex proposed not as the present invention, its environmentally safe is Green Product.ALSR is addition-type silicon rubber, and owing to it selects hexa methyl silazane to be silanization treating agent, it generates NH with the-OH reaction in Si-OH3, when processing with kneader or other non-dedicated equipment, the NH encased by silicone oil3Be difficult to remove, then cause base glue to make its storage period impacted in alkalescence, most of production units all by washing, the method such as fine vacuum and high temperature denitrogenate the most unsatisfactory, become the common fault of industry.
The present invention uses chain alkyl siloxanes such as octyl group trimethoxy silane to remove the-OCH processing precipitated silica at this material3When reacting with-the OH in white carbon, release methanol (being ethanol during with octyl group trimethoxy silane), it is neutral, boiling point is relatively low, in gaseous state under the treatment temperature of about 120 DEG C, be easier to be got rid of by vacuum, thus base glue the most do not exist because in alkalescence prolongation over time and viscosity constantly rises, through operations such as high temperature (180-190 DEG C), base glue particularly will not be made to affect the bin stability of finished product glue in alkalescence.
Owing to long-chain alkyl-silicone oil has lubricity, oil-soluble and the abrasion performance of excellence and has the good compatibility with gas chromatography, so with its precipitated silica processed make the add-on type glue made by reinforced filling make shift printing rubber head time, improve the adhesiveness to pad-transfer printing ink and transitivity.With condensed type and common add-on type glue ratio, the add-on type liquid silicon rubber complex that the present invention proposes is more suitable for doing shift printing rubber head.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (9)
1. an addition type liquid silicone rubber compound used for manufacturing pad printing rubber head, it is characterised in that: include
Component A base glue and B component base glue, described component A base glue is 6～12:1 with the mass ratio of described B component base glue,
Described component A base glue include octyl group bat printing base glue, the first octyl group 830 base glue, vinyl 1000cP silicone oil and
Platinum complex, described B component base glue includes the second octyl group 830 base glue, 0.17% containing hydrogen silicone oil and ethylene methacrylic
Basic ring tetrasiloxane；In terms of quality component, component A base glue include octyl group bat printing base glue 80～90 parts, first
Octyl group 830 base glue 15～20 parts, vinyl 1000cP silicone oil 15～25 parts and platinum complex 0.1～0.2 part；
In terms of quality component, B component base glue includes the second octyl group 830 base glue 6～7 parts, 0.17% containing hydrogen silicone oil 6～7
Part, red mill base 0.6～0.7 part and methyl ethylene cyclotetrasiloxane 2～4 parts；Described first octyl group 830 base
Glue is identical with described second octyl group 830 base glue component, and in terms of quality component, it includes precipitated silica 150～170
Part, vinyl 500cP silicone oil 250～300 parts and chain alkyl siloxanes 50～70 parts；Described octyl group bat printing
Base glue, in terms of quality component, including the first octyl group 830 base glue 130～140 parts and silicon powder 30～50 parts.
2. addition type liquid silicone rubber compound used for manufacturing pad printing rubber head as claimed in claim 1, its
Be characterised by: in terms of quality component, described component A base glue include octyl group bat printing base glue 80～90 parts, first
Octyl group 830 base glue 15～20 parts, vinyl 1000cP silicone oil 15～25 parts and platinum complex 0.1～0.2 part.
3. addition type liquid silicone rubber compound used for manufacturing pad printing rubber head as claimed in claim 1, its
Be characterised by: in terms of quality component, described B component base glue include the second octyl group 830 base glue 6～7 parts, 0.17%
Containing hydrogen silicone oil 6～7 parts and methyl ethylene cyclotetrasiloxane 2～4 parts.
4. addition type liquid silicone rubber compound used for manufacturing pad printing rubber head as claimed in claim 3, its
It is characterised by: described chain alkyl siloxanes is octyl group trimethoxy silane or octyltri-ethoxysilane.
5. addition type liquid silicone rubber compound used for manufacturing pad printing rubber head as claimed in claim 3, its
Being characterised by: in terms of quality component, described component A base glue includes described first octyl group 830 base glue 130～140
Part, also include silicon powder 30～50 parts.
6. addition type liquid silicone rubber compound used for manufacturing pad printing rubber head as claimed in claim 1, its
It is characterised by: described component A base glue is 9:1 with the mass ratio of described B component base glue.
7. an addition type liquid silicone rubber compound used for manufacturing pad printing rubber head as claimed in claim 1
Preparation method, it is characterised in that comprise the steps:
1), after described component A base glue being stirred 10min at 50～70 DEG C, stand；
2) after described B component base glue being stirred 10min at 50～70 DEG C, obtain in described step 1
Component A base glue is 1:(6～12 according to mass ratio) mixing, it is the add-on type liquid made for shift printing rubber head
Body silicone rubber compound.
8. the system of addition type liquid silicone rubber compound used for manufacturing pad printing rubber head as claimed in claim 7
Preparation Method, it is characterised in that: in described step 1, temperature is 50～60 DEG C.
9. the system of addition type liquid silicone rubber compound used for manufacturing pad printing rubber head as claimed in claim 7
Preparation Method, it is characterised in that: in described step 2, temperature is 50～60 DEG C.
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| CN106497074A (en) * | 2016-10-07 | 2017-03-15 | 常州创索新材料科技有限公司 | A kind of preparation method of shift printing rubber head |
| EP3617273B1 (en) * | 2017-04-26 | 2025-02-26 | Shin-Etsu Chemical Co., Ltd. | Addition-curable silicone rubber composition |
| CN109722030A (en) * | 2019-01-07 | 2019-05-07 | 爱生华(苏州)光学有限公司 | A kind of preparation method of colorful contact lens shift printing rubber head |
| CN110229522A (en) * | 2019-07-09 | 2019-09-13 | 佛山市南海创意鞋材有限公司 | A kind of shift printing rubber head and preparation method thereof |
| CN112159595B (en) * | 2020-10-16 | 2021-11-23 | 深圳市久和丝印器材有限公司 | Rubber head for pad printing of different types of hand surface plate glass and preparation method thereof |
| CN114605679B (en) * | 2022-03-31 | 2024-06-07 | 维达力科技股份有限公司 | Pad printing rubber head and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101456307A (en) * | 2007-12-13 | 2009-06-17 | 沈阳兴华航空电器有限责任公司 | Process for printing mark on electric connector interface sealing body |
| CN201960813U (en) * | 2010-12-22 | 2011-09-07 | 深圳市固加实业发展有限公司 | Transfer printing rubber head |
-
2013
- 2013-08-01 CN CN201310332086.3A patent/CN103408938B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101456307A (en) * | 2007-12-13 | 2009-06-17 | 沈阳兴华航空电器有限责任公司 | Process for printing mark on electric connector interface sealing body |
| CN201960813U (en) * | 2010-12-22 | 2011-09-07 | 深圳市固加实业发展有限公司 | Transfer printing rubber head |
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| CN103408938A (en) | 2013-11-27 |
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