CN109609083A - A kind of solar light-heat power-generation two-component structural silicone glue and preparation method thereof - Google Patents
A kind of solar light-heat power-generation two-component structural silicone glue and preparation method thereof Download PDFInfo
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- CN109609083A CN109609083A CN201811584133.2A CN201811584133A CN109609083A CN 109609083 A CN109609083 A CN 109609083A CN 201811584133 A CN201811584133 A CN 201811584133A CN 109609083 A CN109609083 A CN 109609083A
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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
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- 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
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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
- 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
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- 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
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- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K2201/011—Nanostructured additives
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- 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
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- 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
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- C08L2312/00—Crosslinking
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Abstract
The invention discloses a kind of solar light-heat power-generation two-component structural silicone glue, including component A and B component, component A includes: the 1st class α, and 10~40 parts of alpha, omega-dihydroxy polydimethyl siloxane；2nd class α, 60~100 parts of alpha, omega-dihydroxy polydimethyl siloxane；5~35 parts of plasticizer；1st 80~150 parts of class filler；2nd 0.5~10 part of class filler；B component includes: 20~35 parts of carbon black；25~40 parts of plasticizer；1st 10~80 parts of class crosslinking agent；2nd 25~80 parts of class crosslinking agent；2.5~20 parts of coupling agent；0.1~2 part of catalyst.The invention also discloses the solar light-heat power-generation preparation methods of two-component structural silicone glue.What the silicone sealant can be used for that the structural bonding of outdoor carry out is particularly suitable between solar light-heat power-generation reflecting mirror and bracket structural is adhesively fixed.
Description
Technical field
The present invention relates to a kind of silicone adhesives and preparation method thereof, and in particular to a kind of solar light-heat power-generation bi-component silicon
Ketone structure glue and preparation method thereof belongs to organosilicon structures adhesive techniques field.
Background technique
According to the difference of solar power generation mode, solar energy power generating and solar light-heat power-generation can be divided into.Solar energy
Photo-thermal power generation is that solar radiant energy is gathered together using light-concentrating solar heat-collection device, is then heated certain working medium using energy
Carry out the bladder meridian connecting with nape energy utilization technology that driven generator generates electricity to hundreds of degrees Celsius, and with this working medium.Photo-thermal power generation technology is from upper
The fifties in century is born so far, and Present Global solar energy thermal-power-generating market is concentrated mainly on the countries such as Spain, the U.S..China from
Just starting gradually to develop solar light-heat power-generation industry in recent years, solar light-heat power-generation technology belongs to new industry in China,
Many technologies are still in the experimental verification stage.
The reflecting mirror of solar light-heat power-generation is one of the most important factor for influencing its generating efficiency, reflecting mirror and mirror surface branch
Connection between frame is to influence the key factor of light deflection device structural reliability and durability.At present between reflecting mirror and bracket
Connection type mainly have 2 kinds: 1) on mirror surface outermost layer protective paint with adhesive bonded ceramics gasket, then by ceramic gasket with
The bonded process that bracket mechanically connects or directly uses adhesive that reflecting mirror is Nian Jie with bracket；2) it is fixed with rivet.Make
Belong to flexible connection mode with the method for adhesive bonds stationary mirror, there is assembly technology letter compared with mechanical connection manner
Single, economically feasible and many advantages, such as do not destroy mirror surface.Solar light-heat power-generation is mainly used for too with organosilicon structures glue
Positive structural connectivity between reflecting mirror and bracket or to be adhesively fixed, it is to comment on bracket that whether reflecting mirror, which is rigidly mounted,
The key index of valence organosilicon structures glue.Reflecting mirror removes outdoors receives the adverse circumstances such as outdoor high temperature, rainwater, intensive ultraviolet
Outside, it is necessary to guarantee that the reflecting mirror being adhesively secured is able to take the test of the high wind of certain grade.Therefore solar energy optical-thermal
Power generation has to have good stretching after having excellent tensile bond intensity and double 85 aging processs with organosilicon structures glue
Adhesive strength.
Since solar light-heat power-generation industry belongs to new industry at home, relatively for its matched organosilicon structures glue
It is few.The country is concentrated mainly on solar photovoltaic assembly sealant about the report of solar power generation organosilicon sealant, and
What application was most at present is single-component ketoxime removing type organosilicon sealant.In aspect of performance major requirement photovoltaic module organosilicon
Sealing micelle colloid has good intensity and excellent anti-yellowing property with colloid after good mechanical strength, double 85 agings,
Less to the report after double 85 aging processs with good tensile bond intensity, corresponding technical indicator is referring especially to GB/
T29595 is executed.Patent disclosure a kind of color inhibition pure good one pack system if application publication number is CN 105505297A is de-
Alcohol type solar energy photovoltaic component seal gum and preparation method thereof uses epoxy group silicone coupling agents and ammonia hydrocarbyl siloxane even
The sealant that the tackifier prepared after connection agent reaction obtain has excellent anti-yellowing property after double 85 agings, and research is not double
Tensile bond intensity after 85 agings, and in comparison deep cure speed is slow with bi-component product by the single-component de-alcoholized RTV,
Its main application is the waterproof sealing of photovoltaic component frame.From the serialization for using the unsuitable photo-thermal power generation reflecting mirror of angle
Assembling Production is not suitable for being directly exposed to outdoor structural bonding from performance perspective.Application publication number is
A kind of patent disclosure of CN101768421A solar photovoltaic assembly bi-component silicone sealant and preparation method thereof, master
The anti-yellowing property of sizing material after double 85 agings is studied, and the tensile bond after double 85 aging process 1008h is not ground
Study carefully.A kind of mono-component organic silicone solar photovoltaic assembly sealant of patent disclosure that application publication number is CN102936483A
And preparation method thereof, the single component sealant of preparation has excellent anti-yellowing property after 150 DEG C of aging 1000h, and
Tensile bond intensity after not referring to double 85 aging 1000h.Photovoltaic module organosilicon sealant in use environment with the sun
Can photo-thermal power generation stationary mirror organosilicon structures glue and similarity with higher, requiring to be chronically exposed to open air makes
With.Photovoltaic module mainly plays sealing waterproofing protection with organosilicon sealant to solar battery panel, and installs fixed anti-
Penetrate the solar light-heat power-generation of mirror with organosilicon structures glue mainly serve it is structural be adhesively fixed, to tensile bond intensity and
The requirement of tensile bond intensity after double 85 agings is higher than photovoltaic module silicone sealant.Therefore current photovoltaic group
Part is not able to satisfy photo-thermal power generation reflecting mirror with organosilicon sealant and fixes requirement with structure glue.
The development of silicone industry in China structure glue is concentrated mainly on structure glue for building, compared to photo-thermal power generation structure glue glue
The use environment that body is directly exposed to such structure glue for outdoor use environment is comparatively mild.Building class organosilicon knot
Structure glue is mainly for the preparation of structural bonding between glass curtain wall hollow glass and hollow glass and secondary frame, in hollow glass
After hanging up curtain wall, outermost layer will use organosilicon weather proofing sealant and carry out waterproof sealing processing.Therefore Building class organosilicon knot
Structure glue requires excellent adhesive strength and higher elongation, and does not do related request to double 85 ageing properties, related
Product is executed referring especially to 16776 standard of GB/T.Such as application publication number be CN105255439A patent disclose it is a kind of high
Elongation two-component structural silicone glue and preparation method thereof, such structural silicone adhesive are suitable for the structure of high-rise glass building curtain wall
Adhering and sealing, elongation with higher, but tensile bond intensity after double 85 aging processs and bond failure area be not special
It is referred in benefit.
Domestic solar photovoltaic assembly silicone sealant and building curtain wall structural silicone adhesive are due to its use at present
Requirement of the otherness of environment and technical requirements without being able to satisfy photo-thermal power generation structure glue.Solar energy optical-thermal of the present invention
Power generation be mainly used for structural silicone adhesive it is structural bonding between photo-thermal power generation reflecting mirror and bracket, due to colloid directly expose
Structural connectivity is carried out outdoors, is had compared to photovoltaic module organosilicon sealant and organosilicon structures glue for building higher
Requirement.Therefore solar light-heat power-generation requires the comparable tensile bond of organosilicon structures glue for building with structural silicone adhesive
Intensity, and have after carrying out double 85 aging process 1008h identical with photovoltaic module organosilicon sealant and double 85 aging processs
There is good tensile bond intensity.Since room temperature vulcanized silicone rubber is under hot and humid environment, there are the crosslinking of sealing material is close
The phenomenon of reverting reduced is spent, the adhesive strength of substrate is greatly reduced after double 85 agings are shown as in terms of the adhesive property.Therefore
To have the organic of good tensile bond intensity after the mating research and development of solar light-heat power-generation (reflecting mirror installation is fixed to be used) double 85 agings
Silicon structure glue is necessary.
Summary of the invention
It is viscous in hydrothermal aging processing post-tensioning it is an object of the invention to solve bi-component dealcoholized type room temperature vulcanized silicone rubber
The technological difficulties that connecing property reduces, and provide that a kind of tensile bond intensity is high, has good draw to substrate after double 85 aging processs
Adhesive strength is stretched simultaneously to 0 bond failure area of substrate, and there is good bonding to substrates such as reflecting mirror, aluminum profile, potsherds
Solar light-heat power-generation dealcoholized type two-component structural silicone glue and preparation method thereof, to meet solar light-heat power-generation system
Particular/special requirement and application demand of the stationary mirror to structure glue.
The present invention is implemented as follows:
A kind of solar light-heat power-generation two-component structural silicone glue, including component A and B component, component A and B component are pressed
According to parts by weight respectively include:
Component A:
B component:
Further scheme is:
1st class α, 100~3000mPas of viscosity of alpha, omega-dihydroxy polydimethyl siloxane, preferably 500~
1500mPa·s。
2nd class α, the viscosity of alpha, omega-dihydroxy polydimethyl siloxane are 10000~80000mPas or by different viscosities
α, viscosity is 10000~80000mPas after alpha, omega-dihydroxy polydimethyl siloxane is compounded and compounded.
Further scheme is:
A, plasticizer is selected from end-vinyl dimethyl silicone polymer, methyl dimethyl silicone polymer and α, ω-in B component
One or more of dialkyl polydimethylsiloxane compounds compound, and range of viscosities is preferably 100~1000mPas.
Further scheme is:
1st class filler is the mixed of one of nm-class active calcium carbonate, powdered whiting, silicon powder or in which several substances
Object is closed, wherein nm-class active calcium carbonate crystal form is cube structure, the method test PH < 10 using GB/T19281.
Further scheme is:
2nd class filler is at least one of gas-phase silica, precipitated silica.
Further scheme is:
Carbon black is common pigments carbon black.
Further scheme is:
1st class crosslinking agent has the following structure feature:
Wherein R1, R2 are one of methyl or ethyl and siloxane group Si-OR1、Si-OR2The sum of quantity is that 6, X is
The alkyl of carbon atom number >=2.
Further scheme is:
2nd class crosslinking agent is selected from ethyl orthosilicate, positive silicic acid propyl ester, positive isopropyl silicate, poly- ethyl orthosilicate, methyl three
Ethoxysilane, poly- methyltriethoxysilane, methyltrimethoxysilane and its partial hydrolysis oligomer, dimethylformamide dimethyl oxygen
Base silane, phenyltrimethoxysila,e, propyl trimethoxy silicane, propyl-triethoxysilicane, octyl trimethoxy silane, ten
One of dialkyl group trimethoxy silane, hexadecyl trimethoxy silane, tetracosyl trimethoxy silane or in which
The mixture of several substances.
Further scheme is:
Coupling agent is amino-alkyl silicane coupling agent and γ-glycidyl ether oxygen propyl trimethoxy silicane in mass ratio 0.5
The mixture of~5:1, wherein amino-alkyl silicane coupling agent can be γ-aminopropyl triethoxysilane, γ-aminopropyl front three
Oxysilane, N-β-(aminoethyl)-γ-aminopropyl trimethoxysilane, N-β-(aminoethyl)-γ-aminopropyl three
Ethoxysilane, 3- aminopropyltriethoxy dimethoxysilane, N- normal-butyl -3- aminopropyl triethoxysilane, γ-urea groups the third three
One or more of methoxy silane composition.
Further scheme is:
The mixed method of coupling agent is as follows:
After the alkyl containing ammonia measured alkane coupling agent is heated to 80~90 DEG C under nitrogen protection effect, by γ-shrink
Glycerol ether oxygen propyl trimethoxy silicane is slowly added dropwise in amino-alkyl silicane coupling agent, and rate of addition is no more than with reaction temperature
90 DEG C are principle.
Further scheme is:
Catalyst is selected from dibutyl tin dilaurate, two tin acetate of dimethyl, dibutyl tin acetate, two neodecanoic acids two
One or more of methyl tin, stannous octoate.
It is another object of the present invention to provide the solar light-heat power-generation preparations of two-component structural silicone glue
Method, specific as follows:
(1) preparation of component A
By the 1st class α, 10~40 parts of alpha, omega-dihydroxy polydimethyl siloxane mass parts, the 2nd class α, the poly- diformazan of alpha, omega-dihydroxy
60~100 parts of radical siloxane mass parts, 5~35 parts of plasticizer mass parts, the 1st 80~150 parts of class packing quality part, the 2nd class are filled out
Expect that component A is uniformly made in dispersion mixing to 0.5~10 part of mass parts under vacuum conditions；
(2) preparation of B component
By 20~35 parts of carbon black mass part, 25~40 parts of plasticizer mass parts, the 1st 10~80 parts of class crosslinking agent quality part,
The raw materials such as the 2nd 25~80 parts of class crosslinking agent quality part, coupling agent mass parts 2.5~20, catalyst quality part 0.1~2 are in vacuum
Under the conditions of dispersion mixing uniformly be made B component；
(3) A, B component mixing
A, B component is used by the mass ratio of A:B=10~15:1 after mixing at room temperature.
The present invention at least has the advantages that
1) present invention is prepared using the low viscosity base polymer (α, alpha, omega-dihydroxy polydimethyl siloxane) of higher proportion
Component A, the functional group number (Si-OH content) that may participate in cross-linking reaction is more than common component A, the base polymer arranged in pairs or groups by this method
Prepared component A is conducive to improve the crosslink density after sizing material solidifies, to improve solar light-heat power-generation organosilicon knot
Tensile bond performance after the wet and heat ageing resistant of structure glue.
2) present invention is using the active nano activated Calcium carbonate of cubic structure and pH value < 10 and certain proportion of arranging in pairs or groups
Powdered whiting (acid-base property be almost neutrality) is as half reinforced filling and white carbon black of arranging in pairs or groups carries out reinforcement, the method uses PH
The dosage that active nano activated Calcium carbonate is reduced while being worth lower active nano activated Calcium carbonate, makes the pH value of paste system
It is biased to neutrality, solution cross-linking reaction of the crosslinking points under high heat and humidity environment can be substantially reduced with this, to improve cured glue
The heat and moisture aging resistance of material.Stretching of the sizing material to substrate can be greatly improved after the collocation white carbon black reinforcement of half reinforcement system of calcium carbonate
Adhesive strength, with two-component structural silicone glue, it passes through double 85 aging 1008h post-tensionings to solar light-heat power-generation prepared by the present invention
Stretch adhesive strength >=0.9MPa.
3) present invention is passed through using the reactivity of the epoxy group in γ-glycidyl ether oxygen propyl trimethoxy silicane
Hungry feeding method is added in the amino silicone of predetermined ratio, will be at the primary amine in amino silicone under certain reaction condition
Compound coupling agent after becoming secondary amine or tertiary amine after reason reaction is as tackifier.The method makes the structural silicone adhesive after vulcanization
The ammonia alkyl activity H atom number of middle remaining is greatly reduced, to improve the heat and moisture aging resistance of structural silicone adhesive.
4) present invention is cooperated using the siloxanes of a certain proportion of high functional group number as crosslinking agent using such crosslinking agent
Have following benefit after reinforcement powder appropriate, coupling agent and other crosslinking agents: one, such crosslinking agent may participate in cross-linking reaction
Functional group is more, has good cementability base-material prepared by the present invention to solar energy reflection mirror, pottery a variety of substrates after solidification
The substrate bondings such as porcelain gasket, aluminum profile, stainless steel are good；Secondly, its higher reactable functional group number can greatly improve
Crosslink density after rubber vulcanization is to improve the tensile bond after structure glue wet and heat ageing resistant.
5) present invention using dealcoholized type two-component room-temperature-vulcanized silicone rubber as solar light-heat power-generation structural silicone adhesive,
Its smell is low, deep cure performance is good, the adjustable suitable industrialization operation of curing rate, has after wet and heat ageing resistant processing good
Good tensile bond intensity is able to satisfy the needs of outdoor structures bonding.
Specific embodiment
The present invention is described in further detail combined with specific embodiments below.
Embodiment 1
Component A preparation
The α for being 700mPas S by 20 parts of viscosity, alpha, omega-dihydroxy polydimethyl siloxane, 80 parts of viscosity are
The α of 20000mPas, alpha, omega-dihydroxy polydimethyl siloxane, 20 parts of viscosity are the dimethyl silicone polymer of 500mPas, 30
A is uniformly made in dispersion mixing afterwards under vacuum conditions for part nm-class active calcium carbonate, 50 parts of powdered whitings, 5 parts of gas-phase silicas
Component.
B component preparation
It is the dimethyl silicone polymer of 500mPas, 20 part of the 1st class crosslinking agent, 40 by 30 parts of colour carbon blacks, 40 parts of viscosity
B group is uniformly made in dispersion mixing afterwards under vacuum conditions for part ethyl orthosilicate, 10 parts of coupling agents, 2 parts of dibutyl tin dilaurates
Point.
It is the crosslinking agent of methyl structural for ethyl, R1 and R2 that wherein the 1st class crosslinking agent, which uses X, and molecular structure is
Wherein coupling agent are as follows: γ-aminopropyl triethoxysilane and γ-glycidyl ether oxygen propyl trimethoxy silicane
The metering of 1:1 in mass ratio, by γ-glycidyl ether oxygen propyl trimethoxy silicane to three second of γ-aminopropyl under the conditions of 85 DEG C
Mixture prepared by being slowly added dropwise in oxysilane.
A, B component mixes
A, B component 14:1 in mass ratio are prepared into sample test after mixing
Embodiment 2
Component A preparation
The α for being 700mPas S by 10 parts of viscosity, alpha, omega-dihydroxy polydimethyl siloxane, 100 parts of viscosity are
The α of 20000mPas, alpha, omega-dihydroxy polydimethyl siloxane, the dimethyl silicone polymer that 20 parts of viscosity are 500mPas,
Dispersion mixing is uniformly made afterwards under vacuum conditions for 100 parts of nm-class active calcium carbonates, 50 parts of powdered whitings, 2 parts of gas-phase silicas
Obtain component A.
B component preparation
It is the dimethyl silicone polymer of 500mPas, 15 part of the 1st class crosslinking agent, 40 by 30 parts of colour carbon blacks, 40 parts of viscosity
B group is uniformly made in dispersion mixing afterwards under vacuum conditions for part ethyl orthosilicate, 10 parts of coupling agents, 2 parts of dibutyl tin dilaurates
Point.
It is the crosslinking agent of methyl structural for octyl, R1 and R2 that wherein the 1st class crosslinking agent, which uses X, and molecular structure is
Wherein coupling agent are as follows: γ-aminopropyl triethoxysilane and γ-glycidyl ether oxygen propyl trimethoxy silicane
The metering of 1:1 in mass ratio, by γ-glycidyl ether oxygen propyl trimethoxy silicane to three second of γ-aminopropyl under the conditions of 85 DEG C
Mixture prepared by being slowly added dropwise in oxysilane.
A, B component mixes
A, B component 14:1 in mass ratio are prepared into sample test after mixing
Embodiment 3
Component A preparation
The α for being 700mPas S by 40 parts of viscosity, alpha, omega-dihydroxy polydimethyl siloxane, 60 parts of viscosity are
The α of 20000mPas, alpha, omega-dihydroxy polydimethyl siloxane, 10 parts of viscosity are the dimethyl silicone polymer of 500mPas, 60
A is uniformly made in dispersion mixing afterwards under vacuum conditions for part nm-class active calcium carbonate, 60 parts of powdered whitings, 5 parts of gas-phase silicas
Component.
B component preparation
It is the dimethyl silicone polymer of 500mPas, 20 part of the 1st class crosslinking agent, 40 by 30 parts of colour carbon blacks, 40 parts of viscosity
B group is uniformly made in dispersion mixing afterwards under vacuum conditions for part ethyl orthosilicate, 10 parts of coupling agents, 2 parts of dibutyl tin dilaurates
Point.
It is the crosslinking agent of ethyl structure for ethyl, R1 and R2 that wherein the 1st class crosslinking agent, which uses X, and molecular structure is
Wherein coupling agent are as follows: N-β-(aminoethyl)-γ-aminopropyl trimethoxysilane and γ-glycidyl ether oxygen
Propyl trimethoxy silicane 1:1 in mass ratio metering, by γ-glycidyl ether oxygen propyl trimethoxy silicane under the conditions of 90 DEG C
Mixture prepared by being slowly added dropwise into N-β-(aminoethyl)-γ-aminopropyl trimethoxysilane.
A, B component mixes
A, B component 15:1 in mass ratio are prepared into sample test after mixing
Embodiment 4
Component A preparation
The α for being 700mPas S by 10 parts of viscosity, alpha, omega-dihydroxy polydimethyl siloxane, 80 parts of viscosity are
The α of 20000mPas, alpha, omega-dihydroxy polydimethyl siloxane, 20 parts of viscosity are the dimethyl silicone polymer of 500mPas, 60
A is uniformly made in dispersion mixing afterwards under vacuum conditions for part nm-class active calcium carbonate, 50 parts of powdered whitings, 3 parts of gas-phase silicas
Component.
B component preparation
It is the dimethyl silicone polymer of 500mPas, 20 part of the 1st class crosslinking agent, 40 by 30 parts of colour carbon blacks, 40 parts of viscosity
B group is uniformly made in dispersion mixing afterwards under vacuum conditions for part ethyl orthosilicate, 10 parts of coupling agents, 2 parts of dibutyl tin dilaurates
Point.
It is the crosslinking agent of methyl structural for ethyl, R1 and R2 that wherein the 1st class crosslinking agent, which uses X, and molecular structure is
Wherein coupling agent are as follows: γ-aminopropyl triethoxysilane and γ-glycidyl ether oxygen propyl trimethoxy silicane
The metering of 0.5:1 in mass ratio, by γ-glycidyl ether oxygen propyl trimethoxy silicane to γ-aminopropyl three under the conditions of 85 DEG C
Mixture prepared by being slowly added dropwise in Ethoxysilane.
A, B component mixes
A, B component 14:1 in mass ratio are prepared into sample test after mixing
Embodiment 5
Component A preparation
The α for being 700mPas S by 20 parts of viscosity, alpha, omega-dihydroxy polydimethyl siloxane, 70 parts of viscosity are
The α of 20000mPas, alpha, omega-dihydroxy polydimethyl siloxane, 20 parts of viscosity are the dimethyl silicone polymer of 500mPas, 60
A is uniformly made in dispersion mixing afterwards under vacuum conditions for part nm-class active calcium carbonate, 50 parts of powdered whitings, 3 parts of gas-phase silicas
Component.
B component preparation
It is the dimethyl silicone polymer of 500mPas, 15 part of the 1st class crosslinking agent, 45 by 30 parts of colour carbon blacks, 40 parts of viscosity
B group is uniformly made in dispersion mixing afterwards under vacuum conditions for part ethyl orthosilicate, 15 parts of coupling agents, 2 parts of dibutyl tin dilaurates
Point.
It is the crosslinking agent of methyl structural for ethyl, R1 and R2 that wherein the 1st class crosslinking agent, which uses X, and molecular structure is
Wherein coupling agent are as follows: N-β-(aminoethyl)-γ-aminopropyl trimethoxysilane and γ-glycidyl ether oxygen
Propyl trimethoxy silicane 5:1 in mass ratio metering, by γ-glycidyl ether oxygen propyl trimethoxy silicane under the conditions of 85 DEG C
Mixture prepared by being slowly added dropwise into N-β-(aminoethyl)-γ-aminopropyl trimethoxysilane.
A, B component mixes
A, B component 13:1 in mass ratio are prepared into sample test after mixing
Test result
Remarks: testing substrates are solar light-heat power-generation reflecting mirror lacquer painting, and comparative example 1 is certain commercially available bi-component for building
Structural silicone adhesive, comparative example 2 are certain commercially available photovoltaic module single-component silicone fluid sealant；The fitting due to glue sample in contrast test
With field difference, wherein the bicomponent structure glue for building in comparative example 1 is bonded reflecting mirror poor after double 85 agings
100% unsticking, the photovoltaic module single-component silicone fluid sealant in comparative example 2 have centainly solar light-heat power-generation reflecting mirror
Cementability, but 100% unsticking after double 85 agings.
Illustrate: preparation, maintenance and the burn-in test of sample
The preparation of sample is with maintenance: component A and component B 10:1~15:1 in mass ratio mixed, sizing material is made into, according to
The method preparation H-type cementability test specimen that GB/T13477.8-2002 chapter 7 provides (is test base with solar energy reflecting mirror lacquer painting
Material), vulcanization maintenance 28 days in temperature (23 ± 2) DEG C, relative humidity (50 ± 5) % environment.
The aging process mode of sample: by the H-type module prepared under the conditions of 85 DEG C of temperature, 85 DEG C of humidity aging process
1008h。
Sample test: maintenance is expired or by double overdue H-type modules of 85 aging processs referring to GB/T16776 (building
With silicone structure sealant) standard carries out tensile bond test.
Although reference be made herein to invention has been described for explanatory embodiment of the invention, and above-described embodiment is only this hair
Bright preferable embodiment, embodiment of the present invention are not limited by the above embodiments, it should be appreciated that those skilled in the art
Member can be designed that a lot of other modification and implementations, these modifications and implementations will fall in principle disclosed in the present application
Within scope and spirit.
Claims (10)
1. a kind of solar light-heat power-generation two-component structural silicone glue, including component A and B component, it is characterised in that: component A
With B component according to parts by weight respectively include:
Component A:
B component:
2. solar light-heat power-generation two-component structural silicone glue according to claim 1, it is characterised in that:
1st class α, 100~3000mPas of viscosity of alpha, omega-dihydroxy polydimethyl siloxane；
2nd class α, the viscosity of alpha, omega-dihydroxy polydimethyl siloxane are 10000~80000mPas or by different viscosities α, ω-
Viscosity is 10000~80000mPas after dialkyl polydimethylsiloxane compounding and compounding.
3. solar light-heat power-generation two-component structural silicone glue according to claim 1, it is characterised in that:
A, plasticizer is selected from end-vinyl dimethyl silicone polymer, methyl dimethyl silicone polymer and α, ω-dihydroxy in B component
One or more of base dimethyl silicone polymer compound, range of viscosities are 100~1000mPas.
4. solar light-heat power-generation two-component structural silicone glue according to claim 1, it is characterised in that:
1st class filler is the mixing of one of nm-class active calcium carbonate, powdered whiting, silicon powder or in which several substances
Object, wherein nm-class active calcium carbonate crystal form is cube structure, the method test pH < 10 using GB/T19281.
5. solar light-heat power-generation two-component structural silicone glue according to claim 1, it is characterised in that:
2nd class filler is at least one of gas-phase silica, precipitated silica.
6. solar light-heat power-generation two-component structural silicone glue according to claim 1, it is characterised in that:
Carbon black is common pigments carbon black；Catalyst is selected from dibutyl tin dilaurate, two tin acetate of dimethyl, two vinegar of dibutyl
One or more of sour tin, two neodecanoic acid stannous methides, stannous octoate.
7. solar light-heat power-generation two-component structural silicone glue according to claim 1, it is characterised in that:
1st class crosslinking agent has the following structure feature:
Wherein R1, R2 be one of methyl or ethyl and the sum of siloxane group Si-OR1, Si-OR2 quantity be 6, X be carbon original
The alkyl of subnumber >=2.
8. solar light-heat power-generation two-component structural silicone glue according to claim 1, it is characterised in that:
2nd class crosslinking agent is selected from ethyl orthosilicate, positive silicic acid propyl ester, positive isopropyl silicate, poly- ethyl orthosilicate, three ethoxy of methyl
Base silane, poly- methyltriethoxysilane, methyltrimethoxysilane and its partial hydrolysis oligomer, dimethylformamide dimethyl oxygroup silicon
Alkane, phenyltrimethoxysila,e, propyl trimethoxy silicane, propyl-triethoxysilicane, octyl trimethoxy silane, dodecane
One of base trimethoxy silane, hexadecyl trimethoxy silane, tetracosyl trimethoxy silane or in which several
The mixture of substance.
9. solar light-heat power-generation two-component structural silicone glue according to claim 1, it is characterised in that:
Coupling agent is amino-alkyl silicane coupling agent and γ-glycidyl ether oxygen propyl trimethoxy silicane 0.5~5:1 in mass ratio
Mixture, wherein amino-alkyl silicane coupling agent be γ-aminopropyl triethoxysilane, γ-aminopropyltrimethoxysilane,
N-β-(aminoethyl)-γ-aminopropyl trimethoxysilane, N-β-(aminoethyl)-γ-aminopropyl-triethoxy silicon
Alkane, 3- aminopropyltriethoxy dimethoxysilane, N- normal-butyl -3- aminopropyl triethoxysilane, γ-urea groups the third trimethoxy silicon
One or more of alkane composition；
The mixed method of the coupling agent is as follows:
After the amino-alkyl silicane coupling agent measured is heated to 80~90 DEG C under nitrogen protection effect, by γ-glycidol
Ether oxygen propyl trimethoxy silicane is slowly added dropwise in amino-alkyl silicane coupling agent, and rate of addition is no more than 90 DEG C with reaction temperature
For principle.
10. a kind of solar light-heat power-generation preparation method of two-component structural silicone glue, characterized by comprising:
(1) preparation of component A
By the 1st class α, 10~40 parts of alpha, omega-dihydroxy polydimethyl siloxane mass parts, the 2nd class α, alpha, omega-dihydroxy polydimethyl silicon
60~100 parts of oxygen alkane mass parts, 5~35 parts of plasticizer mass parts, the 1st 80~150 parts of class packing quality part, the 2nd class filler matter
Measuring 0.5~10 part of part, component A is uniformly made in dispersion mixing under vacuum conditions；
(2) preparation of B component
By 20~35 parts of carbon black mass part, 25~40 parts of plasticizer mass parts, the 1st 10~80 parts of class crosslinking agent quality part, the 2nd class
The raw materials such as 25~80 parts of crosslinking agent quality part, coupling agent mass parts 2.5~20, catalyst quality part 0.1~2 are under vacuum conditions
B component is uniformly made in dispersion mixing；
(3) A, B component mixing
A, B component is used by the mass ratio of A:B=10~15:1 after mixing at room temperature.
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