CN106701009A - Self-adhesive two-component room temperature vulcanized silicone rubber and application - Google Patents
Self-adhesive two-component room temperature vulcanized silicone rubber and application Download PDFInfo
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- CN106701009A CN106701009A CN201611011003.0A CN201611011003A CN106701009A CN 106701009 A CN106701009 A CN 106701009A CN 201611011003 A CN201611011003 A CN 201611011003A CN 106701009 A CN106701009 A CN 106701009A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J183/00—Adhesives based on 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; Adhesives based on derivatives of such polymers
- C09J183/04—Polysiloxanes
- C09J183/06—Polysiloxanes containing silicon bound to oxygen-containing groups
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2312/00—Crosslinking
- C08L2312/08—Crosslinking by silane
Abstract
The invention discloses a room temperature vulcanized silicone rubber adhesive or sealant composed of an organosilicon polymer with reactive end groups, a cross-linking agent, a catalyst, an accelerant and a filling material. The room temperature vulcanized silicone rubber adhesive or sealant is characterized in that the silicone rubber is composed of two components A and B which are mixed according to a ratio of 100/100, optional deep curing can be performed at room temperature, the cured elastomer can be effectively adhered with multiple materials such as glass, ceramics, concrete and metals, and an adhesive part can be still stably adhered even if soaked in water for a long time. The self-adhesive two-component room temperature vulcanized silicone rubber disclosed by the invention can be used for multiple adhesive seals, and is particularly applicable to joint bonding and sealing of prefabricated buildings and permanent large-scale construction engineering members.
Description
Technical field
The present invention relates to polymeric material field, more particularly to a kind of tack two-component room-temperature-vulcanized silicone rubber and should
With.Its bulk composition is the novel Room Temperature sulphurated siliastic with organosilicon polymer as matrix.
Background technology
Bi-component condensation reaction vulcanization type room temperature vulcanized silicone rubber is easy using technique, and the silicon rubber after vulcanization has resistance to height
The premium properties such as low temperature, weather-resistant, are often used as perfusion encapsulation and copy mold material, are widely used in electronics electricity
The fields such as device, machine-building, building.Common bi-component condensation reaction vulcanization type room temperature vulcanized silicone rubber includes following main group
Point：α, alpha, omega-dihydroxy polydimethyl siloxane base polymer, multifunctional alkoxy silane cross linked dose, metal organic acid salt urges
Agent and reinforced filling etc..Commodity silicon rubber is packed respectively using body silicon rubber mass and vulcanizing agent mostly, and component A is main gel
Material, B component is vulcanizing agent, and when using, general A/B mass ratioes 100/5 or 100/10 of pressing mix two components, and blend glue stuff is in room
It is cross-linking vulcanized under temperature.As above the bicomponent condensed type room temperature sulfidization silicon rubber for constituting, vulcanization reaction speed and vulcanization effect are to A, B
Mixture ratio example rdativery sensitive, often because of the big minor swing of A/B component ratios, causes the vulcanization of mixing silicon rubber material not exclusively or sulphur
Change excessive velocities, blend glue stuff operation lifetime to shorten；Although above-mentioned mixing silicon rubber material can at ambient temperature crosslink sulphur
Change reaction, but the cross-linking reaction of silicon rubber material is progressively entered from mixing silicon rubber material surface to silicon rubber inside finite depth
OK, i.e. mixing silicon rubber material is unable to deep layer vulcanization.Also, common two-component room-temperature-vulcanized silicone rubber truly has good anti-adhesive
Performance, is suitable as mould duplicating material, conversely, because of its non-adhesive, uncomfortable cooperation adhesives.
The content of the invention
The present invention provides that prepare can any deep layer vulcanization and with the reality of reliability cementability two-component room-temperature-vulcanized silicone rubber
With technology, the defect that existing room temperature vulcanized silicone rubber is difficult to deep layer vulcanization and poor attachment, bicomponent normal temperature of the present invention are overcome
Sulphurated siliastic can be used for various substrate bonding sealings, the adhering and sealing of large component and its seam especially be adapted to, so as to extend
The applicability of room temperature vulcanized silicone rubber, improves the economic worth of room temperature vulcanized silicone rubber.Tack bi-component room of the present invention
Temperature vulcanizable silicone rubber includes the component of A, B two, and its basic silastic polymer is α, alpha, omega-dihydroxy polydiorganosiloxanewith and α,
ω-dialkoxy polydiorganosiloxanewith, base silicon rubber mass adds reinforced filling to be used to improve the machinery of sulphurated siliastic
Intensity；Contain multifunctional organo-silicon compound or oligomer crosslinking agent and metal organic acid salt or complex compound in silicon rubber material component
Catalyst, under the double action of catalyst and deep layer vulcanization accelerator, occurs between crosslinking agent and basic organosilicon polymer
Condensation cross-linking reacts, and forms organosilicon polymer cross-linked network, reaches mixing silicon rubber material surface and vulcanizes simultaneously with glue layer；
Adhesion promoters in mixing silicon rubber material produce chemical bonding to act between cross-linked silicone rubber network and glued base material, reach
It is firm Nian Jie to sulphurated siliastic material and base material.The basic composition of tack two-component room-temperature-vulcanized silicone rubber of the present invention includes：
Silicon rubber base polymer of the present invention is the α of the mPas of viscosity 800~80000, poly- two organic group of alpha, omega-dihydroxy
Siloxanes and α, ω-dialkoxy polydiorganosiloxanewith.Reinforced filling of the present invention is hydrophilic or hydrophobic treatment gas
Phase method white carbon and/or precipitated silica.
Half reinforced filling of the present invention or extending fillers be heavy calcium carbonate, precipitated calcium carbonate powder, silicon powder, diatomite,
Wollastonite in powder etc..
Crosslinking agent of the present invention is one or more the mixture in following silane：Tetraethyl orthosilicate, poly- silicon
Acetoacetic ester, MTMS, MTES, poly- MTMS, poly- methyltriethoxy silane
Many alkoxyorganosilicon compounds such as alkane, oligomer and methyl tri acetylacetonate oximino silane, the isobutyl ketoximinosilanes of methyl three, methyl
Triacetoxysilane, poly- methyl tri acetylacetonate oximino silane, the isobutyl ketoximinosilanes of poly- methyl three, poly- methyl triacetoxyl group silicon
Alkane etc..
Catalyst of the present invention is one or more in following organo metallic oxide or organic metal salt
Mixture：Stannous iso caprylate, dibutyltin oxide, dibutyl tin acetate, dibutyl tin dilaurate, isopropyl titanate, titanium
Acid butyl ester, diisopropoxy bisacetoacet epoxide titanium, diisopropoxy bis-acetylacetonate titanium etc..
Two-component room-temperature-vulcanized silicone rubber deep layer vulcanization accelerator of the present invention, its function is to strengthen silicon rubber vulcanization
The catalytic action of agent.Practical deep layer vulcanization accelerator land plaster, pulverized limestone etc..Tackifier component of the present invention, is to contain
The organosilan and its oligomer of active reactive group and hydrolyzable groups, the tackifier of application are the one kind in following silane
Or more than one mixture：N γ aminopropyl trimetho xy silane, N- gamma-aminopropyl-triethoxy-silanes, N- β-ammonia second
Base-γ-aminopropyltrimethoxysilane, N- β-aminoethyl-gamma-aminopropyl-triethoxy-silane, N- β-aminoethyl-γ-ammonia third
Ylmethyl dimethoxysilane, γ-（The oxygen of 2,3- epoxies third）Propyl trimethoxy silicane, γ-（The oxygen of 2,3- epoxies third）Propyl group three
Ethoxysilane, γ-mercaptopropyl trimethoxysilane, gamma-mercaptopropyltriethoxysilane, isocyanatopropyl trimethoxy silicon
Alkane, isocyanatopropyl triethoxysilane, vinyltrimethoxy silane, VTES and above-mentioned silane
Partial hydrolysis condensation product etc..
The general preparation technology of silicon rubber material component A of the present invention is as follows：Will measure basic organosilicon polymer (1) and metering
Reinforced filling, half reinforced filling be added in kneader, start stirring, kneading mixing is obtained paste, adds deep layer vulcanization
Accelerator, continues to mediate to well mixed, then by paste by the thin logical grinding of three-roll grinder, component A silicon rubber material is obtained.
The general preparation technology of silicon rubber material B component of the present invention is as follows：Will measure basic organosilicon polymer (2) and metering
Reinforced filling, extending fillers be added in kneader, start stirring, kneading mixing is obtained paste, then paste is passed through
The thin logical grinding of three-roll grinder, then, adds crosslinking agent, catalyst, vulcanization accelerator in fine and smooth paste, continues to stir
It is well mixed, B component silicon rubber material is obtained.
The ratio of component A of the invention and B component sizing material in mass ratio 100/100 is well mixed, then is deviate from through decompression
Blend glue stuff process brings the bubble in sizing material into, and the blend glue stuff after being well mixed is placed at room temperature, and autovulcanization obtains sulphur
SiClx rubber.Such as bring the automix device of sizing material into without external air using static mixer, decompression degassing can be saved
Operating procedure, well mixed mixing silicon rubber material autovulcanization at room temperature.
Compared with existing similar silicon rubber, two-component room-temperature-vulcanized silicone rubber of the present invention has following advantages：Silicon rubber material A, B
The mass mixings such as component proportioning is conducive to stablizing constructing operation, and mixed silicon rubber material can deep layer vulcanization, the silicon rubber after vulcanization
Glue is reliable with various base materials Nian Jie, and the long-term water logging of bond still keeps stable adhesion.The two-component room-temperature-vulcanized silicon of the present invention
Rubber can be used for the adhering and sealing of various base materials, be particularly well-suited to assembled architecture and permanent large-scale construction engineering component seam
Adhering and sealing.
Further the present invention is illustrated with embodiment below case study on implementation, but the claims in the present invention are not limited to row
For embodiment.
The raw material that the embodiment of the present invention is used is commercially available conventional chemical products.
The material of embodiment 1~3 coordinates
Embodiment 1-3 Silicone Rubbers
。
Claims (8)
1. a kind of tack two-component room-temperature-vulcanized silicone rubber, in parts by mass, its composition includes basis organosilicon polymer 100
Part, partly 10~50 parts of 10~30 parts of reinforced filling, not strong filler or extending fillers, 5~10 parts of crosslinking agent, catalyst and deep layer sulphur
Change 1~2 part of accelerator, 1~2 part of tackifier；Silicon rubber composition is packed as bi-component, and two component silicone rubber material mass mixings are matched somebody with somebody
Than being 100/100, mixed silicon rubber material can any deep layer vulcanization, and there is adhesive property to various base materials.
2. the tack two-component room-temperature-vulcanized silicone rubber as described in claim 1, its basic organosilicon polymer is under having
Row below formula（1）α, alpha, omega-dihydroxy polydiorganosiloxanewith and formula（2）α, poly- two organic group of ω-dialkoxy
Siloxanes：
In formula, R is methyl or ethyl, R1、R2It is identical or different methyl, ethyl, propyl group, butyl, phenyl, n=100~
5000。
3. the tack two-component room-temperature-vulcanized silicone rubber as described in claim 1, its reinforced filling be fume colloidal silica or
Precipitated silica, half reinforced filling is silica flour, diatomite, Paris white, wollastonite in powder, silicon powder.
4. the tack two-component room-temperature-vulcanized silicone rubber as described in claim 1, its crosslinking agent is that multifunctional reactivity is organic
Silane, including methyl silicate, tetraethyl orthosilicate, ethyl polysilicate, MTMS, MTES,
Many alkoxyorganosilicon oligomer such as poly- MTMS, poly- MTES and methyl tri acetylacetonate oximido silicon
Alkane, the isobutyl ketoximinosilanes of methyl three, methyl triacetoxysilane, poly- methyl tri acetylacetonate oximino silane, the isobutyl of poly- methyl three
Ketoximinosilanes, poly- methyl triacetoxysilane etc. have reactive multifunctional organo-silicon compound and oligomer.
5. the tack two-component room-temperature-vulcanized silicone rubber as described in claim 1, its catalyst is organo metallic oxide, gold
Category acylate and complex compound, including stannous iso caprylate, dibutyltin oxide, dibutyl tin acetate, dibutyl tin cinnamic acid
Tin, isopropyl titanate, butyl titanate, diisopropoxy bisacetoacet epoxide titanium, diisopropoxy bis-acetylacetonate titanium.
6. the tack two-component room-temperature-vulcanized silicone rubber as described in claim 1, its deep layer vulcanization accelerator is land plaster, stone
Ashes and precipitated calcium carbonate.
7. the tack two-component room-temperature-vulcanized silicone rubber as described in claim 1, also including improving silicon rubber to substrate bonding
The tackifier component of performance, tackifier are that organosilan or organosilicon containing active reactive group and hydrolyzable groups are oligomeric
Thing, wherein, active reactive group, can water including amino, aminoalkyl, epoxy radicals, mercapto alkyl, isocyanate group, unsaturated alkyl etc.
Solution group is methoxyl group and ethyoxyl；Primary viscosifier is exemplified below：γ-aminopropyltrimethoxysilane, the second of γ-aminopropyl three
TMOS, N- β-aminoethyl-γ-aminopropyltrimethoxysilane, N- β-aminoethyl-gamma-aminopropyl-triethoxy-silane, N-
β-aminoethyl-γ-aminopropyltriethoxy dimethoxysilane, γ-（The oxygen of 2,3- epoxies third）Propyl trimethoxy silicane, γ-（2,3-
The oxygen of epoxy third）Propyl-triethoxysilicane, γ-mercaptopropyl trimethoxysilane, gamma-mercaptopropyltriethoxysilane, isocyanic acid
Propyl trimethoxy silicane, isocyanatopropyl triethoxysilane, vinyltrimethoxy silane, vinyl triethoxyl silicon
Alkane.
8. silicon rubber material of the invention is made up of the component of A, B two, and its preparation method is as follows：
Component A silicon rubber material preparation process includes the operations such as kneading, mixing, grinding, discharging packaging：Basic polymerizable organosilicon
Thing reinforced filling, half reinforced filling, vulcanization accelerator blending kneading (1) with metering, then thin logical grinding, metering packing is obtained
Component A silicon rubber material；B component silicon rubber material preparation process includes the operations such as kneading, mixing, grinding, discharging packaging：Basis
Organosilicon polymer reinforced filling, extending fillers blending kneading (2) with metering, is subsequently adding crosslinking agent, catalyst, and mixing is equal
Even rear thin logical grinding, metering packing is obtained B component silicon rubber material；Two component silicone rubber material of A, B in mass ratio 100/100 mixes
Uniformly, the elastomer with self-adhesiveness is solidified at room temperature.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611011003.0A CN106701009A (en) | 2016-11-17 | 2016-11-17 | Self-adhesive two-component room temperature vulcanized silicone rubber and application |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611011003.0A CN106701009A (en) | 2016-11-17 | 2016-11-17 | Self-adhesive two-component room temperature vulcanized silicone rubber and application |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110577747A (en) * | 2019-10-12 | 2019-12-17 | 广州道林合成材料有限公司 | room temperature vulcanized fluorosilicone rubber and preparation method thereof |
| CN111534271A (en) * | 2020-05-12 | 2020-08-14 | 广东圣堡达高新科技有限公司 | Glue for roads and bridges and preparation method thereof |
| CN113185843A (en) * | 2021-06-09 | 2021-07-30 | 四川塔牌电缆绕组线有限责任公司 | Preparation method of irradiation-resistant weather-resistant antifouling cable polymer organic silicon material |
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| CN102703022A (en) * | 2012-06-01 | 2012-10-03 | 成都硅宝科技股份有限公司 | Proportional bi-component condensed type organic silicon sealant stable in storage and preparation method thereof |
| CN103468200A (en) * | 2013-08-30 | 2013-12-25 | 北京天山新材料技术股份有限公司 | Environment-friendly bicomponent silicone rubber adhesive and preparation method thereof |
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2016
- 2016-11-17 CN CN201611011003.0A patent/CN106701009A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102618208A (en) * | 2011-01-28 | 2012-08-01 | 深圳市百丽春粘胶实业有限公司 | Halogen-free flame-retardant heat-conduction organosilicon electronic pouring sealant and preparation technology thereof |
| CN102703022A (en) * | 2012-06-01 | 2012-10-03 | 成都硅宝科技股份有限公司 | Proportional bi-component condensed type organic silicon sealant stable in storage and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110577747A (en) * | 2019-10-12 | 2019-12-17 | 广州道林合成材料有限公司 | room temperature vulcanized fluorosilicone rubber and preparation method thereof |
| CN110577747B (en) * | 2019-10-12 | 2022-04-12 | 广州福泽新材料有限公司 | Room temperature vulcanized fluorosilicone rubber and preparation method thereof |
| CN111534271A (en) * | 2020-05-12 | 2020-08-14 | 广东圣堡达高新科技有限公司 | Glue for roads and bridges and preparation method thereof |
| CN113185843A (en) * | 2021-06-09 | 2021-07-30 | 四川塔牌电缆绕组线有限责任公司 | Preparation method of irradiation-resistant weather-resistant antifouling cable polymer organic silicon material |
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Application publication date: 20170524 |