CN103421465B - Silicon rubber used for organic silicon self-adhesive tape and synthesis process of silicon rubber - Google Patents
Silicon rubber used for organic silicon self-adhesive tape and synthesis process of silicon rubber Download PDFInfo
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Abstract
The invention relates to silicon rubber used for an organic silicon self-adhesive tape and a synthesis process of the silicon rubber. The silicon rubber is prepared mainly by the following raw materials, by weight, 8-33% of methyl vinyl MQ silicon resin (M/Q=0.6-1.2), 14-40% of methyl vinyl silicon rubber, 11-34% of hydroxy silicon rubber and 20-55% of white carbon black. The synthesis process includes adding the raw materials in a kneading machine according to prescribed amount, uniformly stirring at normal temperature, and obtaining the silicon rubber used for the organic silicon self-adhesive tape. By reasonable raw material and proportion selection, the silicon rubber used for the organic silicon self-adhesive tape is synthetised. The obtained silicon rubber product has high resistance to high and low temperature (suitable for temperature environments of -45-200 DEG C), weather resistance, insulativity and excellent moisture-proof and waterproof performance through synergy of the raw materials, and comprehensive performance of the silicon rubber is better than that of existing silicon rubber of organic silicon self-adhesive tapes.
Description
Technical field
The present invention relates to organic silicone rubber self-adhesive tape technical field, relate in particular to a kind of silicon rubber for organosilicon self-adhesive tape and synthesis technique thereof.
Background technology
Self-adhesive tape is a kind of wrapper material, is made generally in the band of multiple sealing coat.When use, tear sealing coat off, under appropriateness stretches, lapping is wrapped on protected object; after parking, certain condition can be fused into one from tightening; play electrical isolation, the functions such as heat insulation and waterproof sealing, are widely used in the industrial fields such as telecommunication, electronics, electromechanics, building.Organosilicon material is because its molecular backbone chain structure is Si-O key, and bond energy is high compared with C-C key, and molecular backbone chain structure is saturated, belongs to half inorganic materials.Therefore there is excellent high-low temperature resistant, electrical isolation, the performance such as ageing-resistant, make self-adhesive tape and there is better sealing property.The maximum feature of organosilicon self-adhesive tape is exactly autohension, and silicon rubber is transformed into after elastomerics through sulfuration, they is intertwined, through placing and just can mutually fuse and be integrated after a while.
It is outer wrapped with intermediate connector that organic silicone rubber self-adhesive tape is mainly used in HV Electric Machine Coil, spindle wrapping and various hv cable termination.Its mainly by monomer silicon rubber and tackiness agent by extruding, sulfuration process makes, the drawn attenuation that is stretched after being wound around in the time that wrapping is used.
CN101921550A discloses a kind of silicon rubber self-adhesive tape, belongs to Chemicals manufacturing technology field, adopts methyl vinyl silicone rubber, gas phase White Carbon black, tackifier, vinyl silicone oil and iron oxide red to make, and production technique is that above-mentioned raw materials is mixed, and is placed in
60radiation vulanization in Co gamma-ray irradiation field.
CN101544872A relates to a kind of glass-fiber reinforced organic silicone rubber self-adhesive tape, and it is taking glass fiber tape as skeleton, has the organo-silicone rubber of autohension at outside surface extruding one deck of glass fiber tape.This invention also relates to production method and the extrusion device of this glass-fiber reinforced organic silicone rubber self-adhesive tape.
The existing silicon rubber for organosilicon self-adhesive tape is Shortcomings aspect weather resisteant, insulativity, resistant of high or low temperature, moistureproof and waterproof, is badly in need of a kind of silastic material of excellent combination property.
Summary of the invention
The object of the invention is to the deficiency for existing issue, proposed a kind of silicon rubber for organosilicon self-adhesive tape and synthesis technique thereof.
For reaching this object, the present invention by the following technical solutions:
For a silicon rubber for organosilicon self-adhesive tape, described silicon rubber is mainly made up of following raw material by quality percentage composition:
Methyl vinyl MQ silicone resin of the present invention has excellent thermotolerance, resistance to low temperature, can under-60～300 DEG C of temperature environments, use.There is the snappiness of good film-forming properties, appropriateness simultaneously, and ageing-resistant, uvioresistant irradiation, preferably water repellency and adhesion property.
Methyl vinyl silicone rubber of the present invention can high-low temperature resistant, can long term operation at-50～250 DEG C, and protection against the tide, electrical insulating property, resistance to electric arc, corona is good; Ageing-resistant, ozone resistance, not viscosity and hydrophobic nature excellence of surface.
Hydroxyl silicon rubber of the present invention has excellent electrical insulating property and resistant of high or low temperature.
White carbon black of the present invention adds after silicon rubber, can improve thermotolerance and the insulating property of silicon rubber.
The quality percentage composition of methyl vinyl MQ silicone resin of the present invention can select 8.02～32.8%, 8.42～30%, and 9～27.6%, 9.6～25.3%, 10.4～22.5%, 13.4～21%, 15.3～19.7%, 16.5% etc., all can be used for implementing the present invention.
The quality percentage composition of methyl vinyl silicone rubber of the present invention can select 14.01～38.9%, 16.3～35.6%, and 18～33.2%, 19.6～31.4%, 22.3～30%, 27% etc., all can be used for implementing the present invention.
The quality percentage composition of hydroxyl silicon rubber of the present invention can select 11.02～33.8%, 13～31.8%, and 14.6～29.6%, 16.3～25.7%, 18～22.7%, 19.5% etc., all can be used for implementing the present invention.
The quality percentage composition of white carbon black of the present invention can select 20.01～54.8%, 24～52.6%, and 28.7～50.1%, 30～48.6%, 33.4～45.3%, 36～42.5%, 38.7～40.1%, 39% etc., all can be used for implementing the present invention.
As the preferred technical scheme of the present invention, described silicon rubber is mainly made up of following raw material by quality percentage composition:
M/Q=0.6～1.2 of methyl vinyl MQ silicone resin of the present invention.
In silicone rubber material of the present invention, also comprise structure regulator.
The quality percentage composition of described structure regulator in silicone rubber material is 2.2～6%, for example, can select 2.21～5.96%, 2.4～5.68%, 2.86～5.32%, 3～5.07%, 3.42～4.86%, 4.23% etc., further preferably 3～5%, most preferably 3.5%.
Described structure regulator is selected from hydroxy silicon oil, dimethyldiethoxysilane;
In silicone rubber material of the present invention, also comprise inhibitor.
The quality percentage composition of described inhibitor in silicone rubber material is 0.35～1.2%, for example, can select 0.36～1.18%, 0.38～1.15%, 0.41～1.08%, 0.6～1%, 0.72～0.96%, 0.78～0.9%, 0.86% etc., further preferably 0.5～1.0%, most preferably 0.8%.
Described inhibitor is selected from 1-ethynylcyclohexanol, 2-butyne alcohol
In silicone rubber material of the present invention, also comprise linking agent.
The quality percentage composition of described linking agent in silicone rubber material is 0.3～2.2%, for example, can select 0.31～2.17%, 0.4～2.11%, 0.47～2.02%, 0.8～1.86%, 0.95～1.62%, 1.03～1.5%, 1.33% etc., further preferably 0.5～2%, most preferably 1.3%.
Described linking agent is selected from (1) R-Si-R ', R=Me, Et, Ar, R '=OMe, OEt, Aco; (2) Si(OR ' '
4), R ' '=Me, Et; (3) silane coupling agent or (4) containing hydrogen silicone oil oligopolymer.
In silicone rubber material of the present invention, also comprise catalyzer.
The quality percentage composition of described catalyzer in silicone rubber material is 0.3～1.2%, for example, can select 0.31～1.19%, 0.4～1.07%, 0.53～1%, 0.7～0.92%, 0.83% etc., further preferably 0.6～1%, most preferably 0.9%.
Described catalyzer is selected from Platinic chloride or dibutyl tin laurate.
As the preferred technical solution of the present invention, described silicon rubber is mainly made up of following raw material by quality percentage composition:
As the most preferred technical scheme of the present invention, described silicon rubber is mainly made up of following raw material by quality percentage composition:
" comprising " of the present invention, mean it except described component, can also comprise other components, these other components give described silicon rubber different characteristics.In addition, " comprising " of the present invention, can also replace with enclosed " being " or " by ... composition ".
The present invention also provides a kind of synthesis technique of silicon rubber described above, by formula ratio, described various raw materials is joined in kneader, and stirring at normal temperature, to evenly, obtains the silicon rubber for organosilicon self-adhesive tape.
Compared with prior art scheme, the present invention has following beneficial effect:
The present invention selects by rational raw material and proportioning, synthetic a kind of silicon rubber for organosilicon self-adhesive tape.Between described each raw material, make the silicone rubber products obtaining there is good high and low temperature resistance (being applicable to-45～200 DEG C of temperature environments) by synergy, weathering resistance, insulativity and excellent moistureproof and waterproof performance, its over-all properties is better than the silicon rubber of existing organosilicon self-adhesive tape.
The present invention is described in more detail below.But following example is only simple and easy example of the present invention, does not represent or limit the scope of the present invention, and protection scope of the present invention is as the criterion with claims.
Embodiment
For the present invention is described better, be convenient to understand technical scheme of the present invention, typical but non-limiting embodiment of the present invention is as follows:
Embodiment 1
For a silicon rubber for organosilicon self-adhesive tape, described silicon rubber is mainly made up of following raw material by quality percentage composition:
By formula ratio, described various raw materials are joined in kneader, stirring at normal temperature, to evenly, obtains the silicon rubber for organosilicon self-adhesive tape.
Embodiment 2
For a silicon rubber for organosilicon self-adhesive tape, described silicon rubber is mainly made up of following raw material by quality percentage composition:
Its synthesis technique is with embodiment 1.
Embodiment 3
For a silicon rubber for organosilicon self-adhesive tape, described silicon rubber is mainly made up of following raw material by quality percentage composition:
Its synthesis technique is with embodiment 1.
Embodiment 4
For a silicon rubber for organosilicon self-adhesive tape, described silicon rubber is mainly made up of following raw material by quality percentage composition:
Its synthesis technique is with embodiment 1.
Embodiment 5
For a silicon rubber for organosilicon self-adhesive tape, described silicon rubber is mainly made up of following raw material by quality percentage composition:
Its synthesis technique is with embodiment 1.
Embodiment 6
For a silicon rubber for organosilicon self-adhesive tape, described silicon rubber is mainly made up of following raw material by quality percentage composition:
Its synthesis technique is with embodiment 1.
Embodiment 7
For a silicon rubber for organosilicon self-adhesive tape, described silicon rubber is mainly made up of following raw material by quality percentage composition:
Its synthesis technique is with embodiment 1.
Applicant's statement, person of ordinary skill in the field is on the basis of above-described embodiment, by the concrete content point value of above-described embodiment component, combined with the technical scheme of summary of the invention part, thereby the new numerical range producing, also be one of record scope of the present invention, the application, for making specification sheets simple and clear, is no longer enumerated these numerical ranges.
Applicant's statement, the present invention illustrates processing step of the present invention by above-described embodiment, but the present invention is not limited to processing step, does not mean that the present invention must rely on above-mentioned technique and suddenly could implement.Person of ordinary skill in the field should understand, any improvement in the present invention, and the selections of the equivalence replacement to the selected raw material of the present invention and the interpolation of ancillary component, concrete mode etc., within all dropping on protection scope of the present invention and open scope.
The silicon rubber for organosilicon self-adhesive tape described in the embodiment of the present invention 1～7 is carried out to properties test result as follows:
1. electrical insulation properties
(1) volume specific resistance:>=10
13Ω/cm. (ASTM D257);
(2) insulation voltage >=27KV/mm.
2. heatproof and ageing-resistant performance
(1) temperature resistant range-50 DEG C～+ 260 DEG C; 350 DEG C of high-temperature resistants;
(2) 180 DEG C of thermostabilitys, life-time service at this temperature, product can be used safely and reach more than 10 years, ageing-resistant performance excellence;
(3) under 260 DEG C of environment, at this temperature, Long Service Life reaches 2000 hours.
3. moisture resistant seal
(1) after being wound around with adhesive tape, be wound around with 1/2 overlap mode, normal temperature is realized self and is merged within lower 24 hours, after being wound around, each layer is forever fused into one deck, and this process is irreversible, and laminating is tightly wound place, because docile property is good, even also can tightly fit at irregular curved position, can alice, realize sealing function;
(2) self cohesive strength is large, can reach 50g/mm;
(3) at water-absorbent 0.9%(21 DEG C in water 46 hours).
4. chemical property
(1) there is anti-oxidant, anti-ozonization;
(2) have uvioresistant effect, resistance to weather is good;
(3) main raw is silicon rubber, has good oil resistant and other solvent borne, possesses corrosion-resistant effect.
5. mechanical property
(1) there is excellent damping, heat-blocking action;
(2) there is good mechanical shock resistance;
(3) extensibility reaches 400～500%.
Claims (11)
1. for a silicon rubber for organosilicon self-adhesive tape, it is characterized in that, described silicon rubber is mainly made up of following raw material by quality percentage composition:
Described structure regulator is selected from hydroxy silicon oil or dimethyldiethoxysilane;
Described inhibitor is selected from 1-ethynylcyclohexanol or 2-butyne alcohol;
Described linking agent is selected from (1) Si (OR ")
4, R "=Me, Et; (2) silane coupling agent or (3) containing hydrogen silicone oil oligopolymer;
Described catalyzer is selected from Platinic chloride or dibutyl tin laurate.
2. silicon rubber as claimed in claim 1, is characterized in that, M/Q=0.6～1.2 of described methyl vinyl MQ silicone resin.
3. silicon rubber as claimed in claim 1 or 2, is characterized in that, the quality percentage composition of described structure regulator in silicone rubber material is 3～5%.
4. silicon rubber as claimed in claim 3, is characterized in that, the quality percentage composition of described structure regulator in silicone rubber material is 3.5%.
5. silicon rubber as claimed in claim 1 or 2, is characterized in that, the quality percentage composition of described inhibitor in silicone rubber material is 0.5～1%.
6. silicon rubber as claimed in claim 5, is characterized in that, the quality percentage composition of described inhibitor in silicone rubber material is 0.8%.
7. silicon rubber as claimed in claim 1 or 2, is characterized in that, the quality percentage composition of described linking agent in silicone rubber material is 0.5～2%.
8. silicon rubber as claimed in claim 7, is characterized in that, the quality percentage composition of described linking agent in silicone rubber material is 1.3%.
9. silicon rubber as claimed in claim 1 or 2, is characterized in that, the quality percentage composition of described catalyzer in silicone rubber material is 0.6～1%.
10. silicon rubber as claimed in claim 9, is characterized in that, the quality percentage composition of described catalyzer in silicone rubber material is 0.9%.
The synthesis technique of 11. 1 kinds of silicon rubber as described in one of claim 1-8, is characterized in that, by formula ratio, described various raw materials is added in kneader, and stirring at normal temperature is even, obtains the silicon rubber for organosilicon self-adhesive tape.
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| CN201310358579.4A CN103421465B (en) | 2013-08-16 | 2013-08-16 | Silicon rubber used for organic silicon self-adhesive tape and synthesis process of silicon rubber |
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| CN106398636A (en) * | 2016-08-31 | 2017-02-15 | 湖北新四海化工股份有限公司 | Environment-friendly organosilicone pressure-sensitive adhesive and preparation method thereof |
| CN107163834A (en) * | 2017-05-31 | 2017-09-15 | 兴勤（常州）电子有限公司 | A kind of organic resin coating composition |
| CN108795302B (en) * | 2018-06-28 | 2021-02-09 | 丹阳市沃德立电工材料有限公司 | Novel fire-resistant and flame-retardant silicone rubber self-adhesive tape |
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| US5545700A (en) * | 1994-01-10 | 1996-08-13 | Dow Corning Corporation | Moisture-curable silicone pressure sensitive adhesives |
| CN101280168A (en) * | 2008-05-16 | 2008-10-08 | 卢儒 | Single component additional organosilicon electronic potting adhesive |
| CN102174309B (en) * | 2011-01-13 | 2014-08-13 | 深圳市森日有机硅材料有限公司 | Solvent-free organic silicon pressure-sensitive adhesive and preparation method thereof |
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Effective date of registration: 20160615 Address after: 226017 Jiangsu city of Nantong Province Economic and Technological Development Zone Road, No. 31. Patentee after: Shengda Technology (Nantong) Co., Ltd. Address before: 214135 Jiangsu Province, Wuxi City District Qingyuan Road No. 18 Pacific Park University Science Park building 530 A908 Patentee before: Lu Ru |