CN109354875A - A kind of alcohol type colourful transparent liquid silastic and its preparation method and application - Google Patents
A kind of alcohol type colourful transparent liquid silastic and its preparation method and application Download PDFInfo
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
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Abstract
The invention discloses a kind of alcohol type colourful transparent liquid silastic and its preparation method and application, the raw material including following weight percentage: alkoxy end-capped dimethyl silicone polymer 60-90%；Reinforced filling 6-10%；Silane coupling agent 1.6-6%；Catalyst: organotin catalysts 0.3-1%, platinum catalyst 0.01-0.5%；Tackifier 0.3-1.6%；Hydroxyl scavenger 1-13%；Deicer 0.1-1%；Inhibitor 1-3%；Colorant 0.5-3%；Alcohol type colourful transparent liquid silastic prepared by the present invention, disappear it is glutinous fast, form that initial strength is high, the transparency is good and be not easy xanthochromia, surface drying and tack-free time is short, quick solidifying, good mechanical property, storage stability greatly improve.
Description
Technical field
The invention belongs to silicon rubber technical fields, and in particular to a kind of alcohol type colourful transparent liquid silastic and its preparation side
Method and application.
Background technique
Add-on type liquid silicon rubber (can be described as LSR or LSE) is the higher veriety of class in silicon rubber, is had containing second
The poly- of alkenyl has siloxanes to make base polymer, and poly- containing Si -- H bond has siloxanes to make crosslinking agent, in the presence of platinum catalyst,
One kind of cross-linking vulcanization has silicon materials under room temperature or heating.Add-on type liquid silicon rubber as condensed type liquid silastic,
Also it there are one-component and two-component according to product packaging form；According to state after vulcanization, and there are rubber, gel, foams, ball
Point of shape differential.By adjusting being formulated and controlling the methods of curingprocess rate with addition reaction inhibitor, it can be made and adapt to a variety of use
The product on way.
Alcohol type silicon rubber is gained the name because it discharges small molecule by-product alcohols in sulfidation.Alcohol type silicon rubber with it is common
Acetic acid type silicon rubber compare, nonirritant tart flavour and corrosion-free to metal；Compared with ketoxime type silicon rubber, nothing in sulfidation
Cracking phenomena, smell is low, and preferable physical property is able to maintain in harsh environment.
It is well known that do not add the vulcanizate intensity of the silicon rubber of reinforcing filler at a fairly low, the common reinforcement of silicon rubber
Property filler is fume colloidal silica or precipitated silica, and in the appropriate range, the intensity of silicon rubber vulcanization glue is along with hard charcoal
The increase of black loading and correspondingly increase, but will lead to structuring phenomenon appearance, so control rubber mobility premise
Under, usually use organochlorosilane, oligomeric organosilan, hexamethyldisilazane etc. as surface treating agent, to reinforcing filler
White carbon black surface is modified processing in advance, and in traditional treatment process, there are many mistaken ideas, and it is not scientific, such as in advance
First plus the processing of water humidification, and in advance thermal dehydration, be passed through ammonia etc. in advance all and be it is unreasonable, if white carbon black surface lacks
Few silicone hydroxyl, then be added hexamethyldisilazane and also have no way of reacting, and is passed through the progress that ammonia then hinders reaction, asks there is also some
Inscribe that such as compound viscosity is excessively high, levelability is poor after addition vulcanizing agent, row steeps difficulty, storage period is short, easy structuring.But alcohol type is transparent
The disadvantages of generally existing curingprocess rate of silicon rubber is slow, cementability and storage characteristics are poor has it compared with disaster in technique and technology
Degree seriously affects its exploitation and development.Currently, alcohol type transparent silicone rubber does not obtain large development yet at home.
Application No. is the Chinese invention patents of CN201110029161.X to disclose a kind of transparent dealcoholized type one component room temperature
The preparation method of sulphurated siliastic, including the following steps: by the α of 80%-90%, alpha, omega-dihydroxy polydimethyl silicon oxygen under room temperature
The white carbon black reinforced filling of alkane and 1%-15%, 5%-10% paraffins mixture plasticizer be stirred under vacuum in blender, it
The siloxane crosslinker of 1%-5% is added afterwards, is stirred under vacuum, adds the metatitanic acid silicone esters TiOSi catalysis of 0.01%-2%
Agent, the organic tin catalyst of 0.01%-3%, 0.01%-5% silane coupling agent, be stirred under vacuum, discharging, packaging.It is simultaneously
White carbon black is not surface-treated, structuring phenomenon still has, and there are also to be verified for the performance of gained silicon rubber.
Summary of the invention
According to the above-mentioned deficiencies of the prior art, the technical problem to be solved by the present invention is to propose a kind of alcohol type colourful transparent
Liquid silastic and its preparation method and application, by using alkoxy end-capped dimethyl silicone polymer alkane as basic polymer,
White carbon black is handled, solves and occurs the problems such as " viscosity peak ", " structuring " in production process, so that silicon rubber stores
Stability greatly improves, good mechanical property.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention are as follows:
A kind of alcohol type colourful transparent liquid silastic, the raw material including following weight percentage: alkoxy end-capped poly- diformazan
Radical siloxane 60-90%；Reinforced filling 6-10%；Silane coupling agent 1.6-6%；Catalyst: organotin catalysts 0.3-1%,
Platinum catalyst 0.01-0.5%；Tackifier 0.3-1.6%；Hydroxyl scavenger 1-13%；Deicer 0.1-1%；Inhibitor 1-
3%；Colorant 0.5-3%.
Preferably, the molecular weight of the alkoxy end-capped dimethyl silicone polymer is between 2000-90000g/mol, and 25
It DEG C is average viscosity 10000-90000Pas；Reinforced filling is gas-phase silica and vinyl MQ resin；Organotin catalysts
For dibutyl tin dilaurate；Platinum catalyst is the platinum catalyst of methyl vinyl silicone coordination, concentration 500PPM-
20000PPM。
Preferably, the tackifier are the mixture that 1 part of increasing stick auxiliary agent XHG-B and 0.6 part of KH550 are made into；Described
Hydroxyl scavenger is cyclic silazane substance；Inhibitor is alkynol compound: acetylene cyclohexanol, methyl butynol or 3,7,
At least one of 11- trimethyl dodecyne -3- alcohol；Colorant is organic pigment.
A kind of preparation method of alcohol type colourful transparent liquid silastic, comprising the following steps:
(1) processing of white carbon black: white carbon black is added in the opening reactor with blender and condenser pipe, while stirring
Hexamethyldisilazane, distilled water is added dropwise, handles 2-3h in 160-180 DEG C of vacuum 0.03-0.08MPa, then be passed through nitrogen, removes
It is stand-by that hydrophobic silicic aerogels are made in remaining ammonia；
(2) synthesis of alkoxy end-capped dimethyl silicone polymer: 1000g107 silicon rubber is added in three-necked flask, is passed through
Nitrogen, warming while stirring sequentially add 18g alkoxy silane and 1.4g catalyst, in 70-90 after temperature rises to 70 DEG C
Stir about 2-3h in DEG C temperature range, obtains the transparent alkoxy end-capped dimethyl silicone polymer of colorless and odorless；
(3) 171-342g hexamethyldisiloxane, 50-99g the synthesis of vinyl MQ resin: are added in glass bomb
Ethylene double-seal head, 600-1200g ethyl polysilicate and the dense H2SO4 of 7-15g, under stiring in dropwise addition 127-254g distillation in 5min
Water is warming up to 60-115 DEG C, stirs 4.5-6h, reactant is placed in distilling flask after reaction, uses NaHCO3It neutralizes, so
After toluene is added, by coproduct ethanol and remaining distilled water steam, be warming up to 140 DEG C, toluene steamed to get vinyl MQ
Resin；
(4) high speed motive force is added by feed opening in load weighted alkoxy end-capped dimethyl silicone polymer and reinforced filling
In mixing machine, toluene is added under vacuum conditions, stirring is allowed to uniformly mixed；
(5) tackifier, catalyst and inhibitor are added, vacuumizes and stirs and evenly mixs, add hydroxyl scavenger, deicer,
It is uniformly mixed rear deaeration under colorant vacuum condition and maintains 2-4h at 70-80 DEG C, discharge the filling plastic barrel in sealing
It is interior, i.e. transparent silicone rubber.
Preferably, alkoxy silane described in step (2) is methyltrimethoxysilane, tetramethoxy-silicane, methyl three
Ethoxysilane, vinyltrimethoxysilane and vinyltriethoxysilane；Catalyst is organic amine compound, acetic acid
Potassium, phosphate, the compound containing oximido, alkali metal hydroxide.
Preferably, the M/Q ratio of step (3) the MQ resin is 0.7-2, contents of ethylene 1.4-2%, and molecular weight exists
Between 1000-8000g/mol, dynamic viscosity 5000-8000Pas；Vacuum condition described in step (4) and step (5) is pressure
Power is 0.095MPa.
A kind of application of alcohol type colourful transparent liquid silastic is applied to electronic component, electrical equipment, daily-use chemical industry, doctor
Treat beauty treatment material, automobile shock material.
The medicine have the advantages that
1. alcohol type colourful transparent liquid silastic products obtained therefrom transparency prepared by the present invention is preferable, ending ratio is higher, and
Less, the white oil energy assisted demoulding of addition increases product brightness, can also be used as lubricating oil in stamping die for viscosity variation, adds
Enter the color that colorant enriches silicon rubber, it is bright-colored lasting；The organotin catalysts of addition are di lauric dibutyl
Tin has very high activity and selectivity, keeps rubber vulcanization too fast, the safety operation time is short；Inhibitor is alkynol compound
The complexing body that certain forms are generated with platinum catalyst, is able to suppress Si-H addition reaction, influences the movement of reaction balance, inhibits
It will be slow ground autovulcanization under silicon rubber room temperature, silicon rubber enable to store the long period.
2. the present invention prepares alcohol type transparent silicone rubber using alkoxy end-capped dimethyl silicone polymer as basic polymer, can
It avoids sizing material from occurring the problems such as " viscosity peak ", " structuring " in process of production, also has to the storage stability for improving sizing material
Important role；It adds tackifier (being made by increasing stick auxiliary agent XHG-B and KH550), is significantly improved to the cementability of sizing material,
Bonding to most of substrate is cohesional failure, and storage stability is greatly improved, and alcohol type prepared by the present invention is colored thoroughly
Prescribed liquid silicon rubber, disappear it is glutinous fast, form that initial strength is high, the transparency is good and be not easy xanthochromia, surface drying and tack-free time it is short,
Quick solidifying, good mechanical property, storage stability greatly improve.
3. add-on type liquid silicon rubber (LSR) is the higher veriety of class in silicon rubber, with condensed type liquid silicon rubber
Glue compares, have many advantages, such as sulfidation do not generate by-product, shrinking percentage it is minimum, can deep layer vulcanization, leakproofness at high temperature
Also better than condensed type.Alcohol type colourful transparent liquid silastic prepared by the present invention also has simple process, low-cost prominent
Advantage out.This is because liquid silastic molecular weight is small, viscosity is low, machine-shaping is convenient, mixing, preforming, rear whole can be saved
The processes such as reason, automation easy to accomplish, and the energy and labour can be saved, it is with short production cycle and high-efficient.Therefore, small in manufacture
Its superiority in this respect is more showed when part product.
4. alcohol type colourful transparent liquid silastic of the invention has excellent electrical insulation properties, ageing-resistant performance, machine
Tool intensity is high, elasticity is good, molding is quick and convenient, reacts no coupling product, non-toxic and tasteless, corrosion-free to metal, nothing in sulfidation
Cracking phenomena, smell is low, and preferable physical property is able to maintain in harsh environment, does not corrode electric appliance or metal just because of it
Part and free from environmental pollution, so it is well suited for the needs of electronics industry and construction industry, and safety and sanitation wider using temperature, production
The advantages that product extendability is strong can be made into different shape, the seriation of different purposes, differentiated product.
Specific embodiment
It below by the description to embodiment, is described in further detail, to help those skilled in the art to this hair
Bright inventive concept, technical solution have more complete, accurate and deep understanding.
Embodiment 1
Raw material (weight percent):
Alkoxy end-capped dimethyl silicone polymer 83%: molecular weight 5000g/mol, average viscosity 20000Pa at 25 DEG C
s；
Reinforced filling 6%: gas-phase silica: R812S, specific surface area 260m2/ g and vinyl MQ resin: M/Q ratio is
0.7, contents of ethylene 1.4%, molecular weight 3000g/mol, dynamic viscosity 5000Pas；
Silane coupling agent 3%: methyltrimethoxysilane, tetramethoxy-silicane；
Catalyst: dibutyl tin dilaurate 0.5%, platinum (0)-divinyl tetramethyl disiloxane compound 0.3%
(concentration 500PPMPPM)；
The mixture that tackifier 1%:1 parts of increasing stick auxiliary agent XHG-B and 0.6 part of KH550 are made into；
Hydroxyl scavenger 2%: cyclic silazane substance, white oil；Deicer 0.2%；
Inhibitor 2%: acetylene cyclohexanol, methyl butynol；
Colorant 2%: iron oxide.
(1) processing of white carbon black: white carbon black is added in the opening reactor with blender and condenser pipe, while stirring
Hexamethyldisilazane, distilled water is added dropwise, handles 3h in 160 DEG C of vacuum 0.08MPa, then be passed through nitrogen, removes remaining ammonia, system
It is stand-by to obtain hydrophobic silicic aerogels；
(2) synthesis of alkoxy end-capped dimethyl silicone polymer: being added 1000g107 silicon rubber in 2L three-necked flask, leads to
Entering nitrogen, warming while stirring sequentially adds 18g alkoxy silane and 1.4g organic amine compound after temperature rises to 70 DEG C,
The stir about 3h in 70 DEG C of temperature ranges obtains the transparent methoxy group dimethyl silicone polymer of colorless and odorless；
(3) 171g hexamethyldisiloxane, 50g ethylene the synthesis of vinyl MQ resin: are added in 3L glass bomb
Double-seal head, 600g ethyl polysilicate and the dense H of 7g2SO4, under stiring in 127g distilled water is added dropwise in 5min, 80 DEG C are warming up to, is stirred
6h is mixed, reactant is placed in distilling flask after reaction, uses NaHCO3It neutralizes, toluene is then added, by coproduct ethanol
It is steamed with the distilled water of remaining, is warming up to 140 DEG C, toluene is steamed to get vinyl MQ resin；
(4) high speed motive force is added by feed opening in load weighted alkoxy end-capped dimethyl silicone polymer and reinforced filling
In mixing machine, toluene is added under vacuum conditions, pressure 0.095MPa, stirring is allowed to uniformly mixed；
(5) tackifier, silane coupling agent, catalyst and inhibitor is added, vacuumizes and stirs and evenly mixs, vacuum pressure is
0.095MPa is added under the conditions of hydroxyl scavenger, deicer, colorant vacuum pressure are 0.095MPa after being uniformly mixed
Deaeration maintains 4h at 70-80 DEG C, discharges filling in the plastic barrel of sealing, i.e. transparent silicone rubber.
Embodiment 2
Raw material (weight percent):
Alkoxy end-capped dimethyl silicone polymer 80%: molecular weight 6000g/mol, average viscosity 20000Pa at 25 DEG C
s；
Reinforced filling 9%: gas-phase silica: R812S, specific surface area 260m2/ g and vinyl MQ resin: M/Q ratio is
2, contents of ethylene 2%, molecular weight is between 50000g/mol, dynamic viscosity 6000Pas；
Silane coupling agent 2%: methyltriethoxysilane, vinyltrimethoxysilane；
Catalyst: dibutyl tin dilaurate 0.3%, platinum (0)-divinyl tetramethyl disiloxane compound 0.5%
(concentration 1000PPM)；
The mixture that tackifier 1.5%:1 parts of increasing stick auxiliary agent XHG-B and 0.6 part of KH550 are made into；
Hydroxyl scavenger 1.5%: cyclic silazane substance, white oil；Deicer 0.2%；
Inhibitor 1%: methyl butynol, 3,7,11- trimethyl dodecyne -3- alcohol；
Colorant 3%: cobalt blue.
(1) processing of white carbon black: white carbon black is added in the opening reactor with blender and condenser pipe, while stirring
Hexamethyldisilazane, distilled water is added dropwise, handles 2.5h in 170 DEG C of vacuum 0.05MPa, then be passed through nitrogen, removes remaining ammonia,
It is stand-by that hydrophobic silicic aerogels are made；
(2) synthesis of alkoxy end-capped dimethyl silicone polymer: being added 1000g107 silicon rubber in 2L three-necked flask, leads to
Enter nitrogen, warming while stirring sequentially adds 18g alkoxy silane and 1.4g potassium acetate, phosphoric acid after temperature rises to 70 DEG C
Ester, the stir about 2.5h in 80 DEG C of temperature ranges obtain the transparent methoxy group dimethyl silicone polymer of colorless and odorless；
(3) 240g hexamethyldisiloxane, 75g ethylene the synthesis of vinyl MQ resin: are added in 3L glass bomb
Double-seal head, 900g ethyl polysilicate and the dense H of 11g2SO4, under stiring in 187g distilled water is added dropwise in 5min, 95 DEG C are warming up to, is stirred
5h is mixed, reactant is placed in distilling flask after reaction, uses NaHCO3It neutralizes, toluene is then added, by coproduct ethanol
It is steamed with the distilled water of remaining, is warming up to 140 DEG C, toluene is steamed to get vinyl MQ resin；
(4) high speed motive force is added by feed opening in load weighted alkoxy end-capped dimethyl silicone polymer and reinforced filling
In mixing machine, toluene is added under vacuum conditions, pressure 0.095MPa, stirring is allowed to uniformly mixed；
(5) tackifier, silane coupling agent, catalyst and inhibitor is added, vacuumizes and stirs and evenly mixs, vacuum pressure is
0.095MPa is added under the conditions of hydroxyl scavenger, deicer, colorant vacuum pressure are 0.095MPa after being uniformly mixed
Deaeration maintains 3h at 70-80 DEG C, discharges filling in the plastic barrel of sealing, i.e. transparent silicone rubber.
Embodiment 3
Raw material (weight percent):
Alkoxy end-capped dimethyl silicone polymer 64%: molecular weight 10000g/mol, average viscosity 20000Pa at 25 DEG C
s；
Reinforced filling 10%: gas-phase silica: R812S, specific surface area 260m2/ g and vinyl MQ resin: M/Q ratio is
2, contents of ethylene 2%, molecular weight 10000g/mol, dynamic viscosity 8000Pas；
Silane coupling agent 6%: methyltrimethoxysilane, tetramethoxy-silicane, methyltriethoxysilane, vinyl three
Methoxy silane；
Catalyst: dibutyl tin dilaurate 1%, platinum (0)-divinyl tetramethyl disiloxane compound 0.4% are (dense
Spend 1000PPM)；
The mixture that tackifier 1.6%:1 parts of increasing stick auxiliary agent XHG-B and 0.6 part of KH550 are made into；
Hydroxyl scavenger 10%: cyclic silazane substance, white oil；Deicer 1%；
Inhibitor 3%: acetylene cyclohexanol, methyl butynol, 3,7,11- trimethyl dodecyne -3- alcohol；
Colorant 3%: chrome yellow.
(1) processing of white carbon black: white carbon black is added in the opening reactor with blender and condenser pipe, while stirring
Hexamethyldisilazane, distilled water is added dropwise, handles 2-3h in 180 DEG C of vacuum 0.03MPa, then be passed through nitrogen, removes remaining ammonia,
It is stand-by that hydrophobic silicic aerogels are made；
(2) synthesis of alkoxy end-capped dimethyl silicone polymer: being added 1000g107 silicon rubber in 2L three-necked flask, leads to
Enter nitrogen, warming while stirring sequentially adds 18g alkoxy silane and 1.4g alkali metal hydroxide after temperature rises to 70 DEG C
Object, the stir about 2h in 90 DEG C of temperature ranges obtain the transparent methoxy group dimethyl silicone polymer of colorless and odorless；
(3) 342g hexamethyldisiloxane, 99g ethylene the synthesis of vinyl MQ resin: are added in 3L glass bomb
Double-seal head, 1200g ethyl polysilicate and the dense H of 15g2SO4, under stiring in 254g distilled water is added dropwise in 5min, 115 DEG C are warming up to,
4.5h is stirred, reactant is placed in distilling flask after reaction, uses NaHCO3It neutralizes, toluene is then added, by by-product
Ethyl alcohol and the distilled water of remaining steam, and are warming up to 140 DEG C, toluene is steamed to get vinyl MQ resin；
(4) high speed motive force is added by feed opening in load weighted alkoxy end-capped dimethyl silicone polymer and reinforced filling
In mixing machine, toluene is added under vacuum conditions, pressure 0.095MPa, stirring is allowed to uniformly mixed；
(5) tackifier, silane coupling agent, catalyst and inhibitor is added, vacuumizes and stirs and evenly mixs, vacuum pressure is
0.095MPa is added under the conditions of hydroxyl scavenger, deicer, colorant vacuum pressure are 0.095MPa after being uniformly mixed
Deaeration maintains 2h at 70-80 DEG C, discharges filling in the plastic barrel of sealing, i.e. transparent silicone rubber.
Traditional performance test is carried out to the resulting silicon rubber of embodiment 1-3, test method is as follows, the results are shown in Table 1.
1. the preparation of Mechanics Performance Testing test piece: the silicon rubber prepared is coated uniformly on four that depth of groove is 2mm
In vinyl fluoride plastic plate, be placed in 25 DEG C of temperature, relative humidity (60 ± 5) % thermostatic constant wet chamber vulcanize 7 days after, by GB/T
528-2009 are cut into dumbbell shaped test piece as extension test exemplar.
2. choosing bonding substrate is aluminum alloy sheet, specification 100mm × 25mm × 2mm；Control bondline thickness is 0.5mm,
Thermostatic constant wet chamber's vulcanization of 25 DEG C of temperature, relative humidity (60 ± 5) %, is made shear strength test exemplar.
3. heatproof burn-in test: by the silicon rubber shear strength test exemplar after vulcanizing 7 days, being placed in 120 DEG C of temperature of drum
In wind baking oven after aging 1000h, then by the test shear strength of GB/T13936-1992；
Tensile strength and elongation rate of tensile failure: it is tested by GB/T528-2009；
Hardness: it is tested by GB/T531-2008；
Shear strength: it is tested by GB/T13936-1992；
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Shore a hardness/degree | 39 | 39 | 40 |
| Tensile strength/MPa | 3.2 | 3.4 | 4.5 |
| Shear strength/MPa | 2.1 | 2.3 | 2.4 |
| Elongation rate of tensile failure/% | 430 | 450 | 480 |
| 120℃×1000h | 1.65 | 1.69 | 1.66 |
| Sizing material appearance | Red, transparent | Blue-tinted transparent | Yellow transparent |
The present invention is exemplarily described above, it is clear that present invention specific implementation is not subject to the restrictions described above,
As long as using the improvement for the various unsubstantialities that the inventive concept and technical scheme of the present invention carry out, or not improved this is sent out
Bright conception and technical scheme directly apply to other occasions, within the scope of the present invention.Protection of the invention
Range should be determined by the scope of protection defined in the claims.
Claims (7)
1. a kind of alcohol type colourful transparent liquid silastic, which is characterized in that the raw material including following weight percentage: alkoxy envelope
Hold dimethyl silicone polymer 60-90%；Reinforced filling 6-10%；Silane coupling agent 1.6-6%；Catalyst: organotin catalysts
0.3-1%, platinum catalyst 0.01-0.5%；Tackifier 0.3-1.6%；Hydroxyl scavenger 1-13%；Deicer 0.1-1%；
Inhibitor 1-3%；Colorant 0.5-3%.
2. a kind of alcohol type colourful transparent liquid silastic according to claim 1, which is characterized in that the alkoxy envelope
Hold the molecular weight of dimethyl silicone polymer between 2000-90000g/mol, 25 DEG C are average viscosity 10000-90000Pas；
Reinforced filling is gas-phase silica and vinyl MQ resin；Organotin catalysts are dibutyl tin dilaurate；Platinum catalyst
For the platinum catalyst of methyl vinyl silicone coordination, concentration 500PPM-20000PPM.
3. a kind of alcohol type colourful transparent liquid silastic according to claim 1, which is characterized in that the tackifier are
The mixture that 1 part of increasing stick auxiliary agent XHG-B and 0.6 part of KH550 are made into；The hydroxyl scavenger is cyclic silazane substance；
Inhibitor is alkynol compound: at least one in acetylene cyclohexanol, methyl butynol or 3,7,11- trimethyl dodecyne -3- alcohol
Kind；Colorant is organic pigment.
4. a kind of preparation method of alcohol type colourful transparent liquid silastic, which comprises the following steps:
(1) processing of white carbon black: white carbon black is added in the opening reactor with blender and condenser pipe, is added dropwise while stirring
Hexamethyldisilazane, distilled water handle 2-3h in 160-180 DEG C of vacuum 0.03-0.08MPa, then are passed through nitrogen, remove remaining
Ammonia, be made hydrophobic silicic aerogels it is stand-by；
(2) synthesis of alkoxy end-capped dimethyl silicone polymer: 1000g107 silicon rubber is added in three-necked flask, is passed through nitrogen
Gas, warming while stirring sequentially add 18g alkoxy silane and 1.4g catalyst, at 70-90 DEG C after temperature rises to 70 DEG C
Stir about 2-3h in temperature range obtains the transparent alkoxy end-capped dimethyl silicone polymer of colorless and odorless；
(3) 171-342g hexamethyldisiloxane, 50-99g ethylene the synthesis of vinyl MQ resin: are added in glass bomb
Double-seal head, 600-1200g ethyl polysilicate and the dense H of 7-15g2SO4, under stiring in 127-254g distilled water is added dropwise in 5min, rise
Temperature stirs 4.5-6h, reactant is placed in distilling flask after reaction, uses NaHCO to 60-115 DEG C3Neutralize, then plus
Enter toluene, the distilled water of coproduct ethanol and remaining is steamed, 140 DEG C is warming up to, toluene is steamed to get vinyl MQ tree
Rouge；
(4) high speed motive force is added by feed opening in load weighted alkoxy end-capped dimethyl silicone polymer and reinforced filling to mix
In machine, toluene is added under vacuum conditions, stirring is allowed to uniformly mixed；
(5) tackifier, catalyst and inhibitor is added, vacuumizes and stirs and evenly mixs, add hydroxyl scavenger, deicer, coloring
It is uniformly mixed rear deaeration under agent vacuum condition and maintains 2-4h at 70-80 DEG C, discharges filling in the plastic barrel of sealing, i.e.,
Transparent silicone rubber.
5. a kind of preparation method of alcohol type colourful transparent liquid silastic according to claim 4, which is characterized in that step
(2) alkoxy silane described in is methyltrimethoxysilane, tetramethoxy-silicane, methyltriethoxysilane, vinyl three
Methoxy silane and vinyltriethoxysilane；Catalyst be organic amine compound, potassium acetate, phosphate, containing oximido
Compound, alkali metal hydroxide.
6. a kind of preparation method of alcohol type colourful transparent liquid silastic according to claim 4, which is characterized in that step
(3) the M/Q ratio of the MQ resin be 0.7-2, contents of ethylene 1.4-2%, molecular weight between 1000-8000g/mol,
Dynamic viscosity 5000-8000Pas；It is 0.095MPa that vacuum condition described in step (4) and step (5), which is pressure,.
7. a kind of a kind of application of any alcohol type colourful transparent liquid silastic of claim 1-3, which is characterized in that answer
For electronic component, electrical equipment, daily-use chemical industry, medical and beauty treatment material, automobile shock material.
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