CN108130033A - A kind of silane-modified block polyether elastic sealant of high intensity and preparation method thereof - Google Patents
A kind of silane-modified block polyether elastic sealant of high intensity and preparation method thereof Download PDFInfo
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- CN108130033A CN108130033A CN201711377043.1A CN201711377043A CN108130033A CN 108130033 A CN108130033 A CN 108130033A CN 201711377043 A CN201711377043 A CN 201711377043A CN 108130033 A CN108130033 A CN 108130033A
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Classifications
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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
- C09J171/00—Adhesives based on polyethers obtained by reactions forming an ether link in the main chain; Adhesives based on derivatives of such polymers
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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
- C09J11/04—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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- 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
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- 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
- 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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- 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
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Sealing Material Composition (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses silane-modified block polyether elastic sealant of a kind of high intensity and preparation method thereof, the silane-modified block polyether elastic sealant of the high intensity is made of the raw material of following mass parts：End-silicane-group block polyether prepolymer：100 parts；Plasticizer：10~40 parts；Nano-calcium carbonate：60~120 parts；White carbon：5~12 parts；Deicer：1~3 part；Ultraviolet absorber：0.1~1 part；Light stabilizer：0.1~1 part；Vulcanizing agent：1~5 part；Adhesion promoter：1~5 part；Catalyst：0.1~1 part.The preparation method of the silane-modified block polyether elastic sealant of high intensity of the present invention is simple, and each group is uniformly mixed successively in batches.The silane-modified block polyether elastic sealant of high intensity of the present invention can be room-temperature moisture cured, and mechanical strength height, elastic good, UV radiation after curing, preparation process is simple, high-strength environment-friendly adhesives can be used as to be used for a variety of industrial circles.
Description
Technical field
The present invention relates to silane-modified block polyether elastic sealants of a kind of high intensity and preparation method thereof.
Background technology
Silicon-modified polyether fluid sealant has merged the structure and performance characteristics of polyurethane and silicone sealant, has environment friend
The advantages that good, low staining, covering with paint property is good, weather-proof and durability is good, adhesive property is good, sizing facilitates.Silicon-modified polyether is close
Sealing is usually using silane-modified polypropylene glycol as base rubber, then adds filler, coupling agent and other function additives, is stirred by vacuum
It mixes and is mixed to get.Silicon-modified polyether fluid sealant through vulcanize post-tensioning intensity and shear strength be respectively 1~3.5MPa and 1~
4MPa, and polyurethanes fluid sealant is respectively greater than 6MPa and 5MPa through vulcanizing post-tensioning intensity and shear strength.It can be seen that silicon
The intensity of modified polyether seal glue still is apparent not enough, and can not apply in the occasion for requiring high-adhesive-strength and high tensile, such as
The bonding of railway transit passenger car and windshield.It the study found that can be to a certain degree by adding enhanced filler component
The upper mechanical strength for improving silicon-modified polyether fluid sealant, but effect is not obvious.Therefore, it is necessary to develop a kind of silicon of high intensity
Modified polyether seal glue.
Invention content
The purpose of the present invention is to provide silane-modified block polyether elastic sealants of a kind of high intensity and preparation method thereof.
The technical solution used in the present invention is：
A kind of silane-modified block polyether elastic sealant of high intensity, is made of the raw material of following mass parts：
End-silicane-group block polyether prepolymer：100 parts；
Plasticizer：10~40 parts；
Nano-calcium carbonate：60~120 parts；
White carbon：5~12 parts；
Deicer：1~3 part；
Ultraviolet absorber：0.1~1 part；
Light stabilizer：0.1~1 part；
Vulcanizing agent：1~5 part；
Adhesion promoter：1~5 part；
Catalyst：0.1~1 part.
The general structure of the end-silicane-group block polyether prepolymer is：
Wherein, R1ForOr-OCH2CH2CH2-；
R2For-OCH2O-、-OCH2CH2O-、-OCO(CH2)1~8CH2O-、 In one kind；
R3For-CH2CH2CH2CH2O-；
R4For
R5For C1~C5Alkyl, methoxyl group, one kind in ethyoxyl；
R6For methyl or ethyl；
M is 17~138 integer；
N is 13~110 integer；
Z is 1~20 integer；
The number-average molecular weight of the end-silicane-group block polyether prepolymer is 6000~40000 dalton.
The plasticizer is the polypropylene glycol of 1000~6000 dalton of number-average molecular weight.
The white carbon is vapor phase method hydrophabic silica, and specific surface area is 100~400m2/g。
The deicer is oxazole alkanes, hexamethyldisilazane, vinyltrimethoxysilane, three ethoxy of vinyl
At least one of base silane.
The ultraviolet absorber is benzotriazole, in benzophenone class, salicylic acid esters, group-substituted acrylonitrile, triazines
At least one.
The light stabilizer is hindered amine light stabilizer.
The vulcanizing agent is containing there are six the silane of trimethoxy or triethoxy.
The adhesion promoter is at least one of amino silicone, sulfydryl siloxanes, epoxy radical siloxane.
The catalyst is stannous octoate, dibutyl tin laurate, the just pungent tin of lauric acid two, oxalic acid dibutyl
At least one of tin, two (dodecyl sulphur) dibutyl tins, dimercapto 2-ethyl hexyl ethanoate stannous methide.
The preparation method of the above-mentioned silane-modified block polyether elastic sealant of high intensity, includes the following steps：
1) it is end-silicane-group block polyether prepolymer, plasticizer, nano-calcium carbonate, white carbon, ultraviolet absorber and light is steady
Determine agent and add in blender, be stirred under vacuum 2~3h；
2) treat that the mixed material temperature of step 1) is down to 50 DEG C hereinafter, add in deicer, vulcanizing agent and adhesion promoter,
Continue 20~40min of vacuum stirring；
3) catalyst is added in, 20~40min is stirred under vacuum, obtains the silane-modified block polyether elastic sealant of high intensity.
The beneficial effects of the invention are as follows：The silane-modified block polyether elastic sealant of high intensity of the present invention can be wet with room temperature
Curing, mechanical strength height, elastic good, UV radiation after curing, preparation process is simple, can be glued as high-strength environment-friendly
Material is connect for a variety of industrial circles.
1) present invention is using the silane-terminated polyether containing PolyTHF segment as prepolymer, by introducing PolyTHF
Segment increases the mechanical strength of base rubber；
2) present invention increases the crosslink density of fluid sealant using the silane for containing six hydrolyzable groups as vulcanizing agent；
3) present invention has been obviously improved fluid sealant with nano-calcium carbonate, hydrophobicity aerosil etc. for reinforcing filler
The mechanical strength of material.
Specific embodiment
A kind of silane-modified block polyether elastic sealant of high intensity, is made of the raw material of following mass parts：
End-silicane-group block polyether prepolymer：100 parts；
Plasticizer：10~40 parts；
Nano-calcium carbonate：60~120 parts；
White carbon：5~12 parts；
Deicer：1~3 part；
Ultraviolet absorber：0.1~1 part；
Light stabilizer：0.1~1 part；
Vulcanizing agent：1~5 part；
Adhesion promoter：1~5 part；
Catalyst：0.1~1 part.
Preferably, the general structure of the end-silicane-group block polyether prepolymer is：
Wherein, R1ForOr-OCH2CH2CH2-；
R2For-OCH2O-、-OCH2CH2O-、-OCO(CH2)1~8CH2O-、 In one kind；
R3For-CH2CH2CH2CH2O-；
R4For
R5For C1~C5Alkyl, methoxyl group, one kind in ethyoxyl；
R6For methyl or ethyl；
M is 17~138 integer；Preferably, m is 34~69 integer；
N is 13~110 integer；Preferably, n is 27~55 integer；
Z is 1~20 integer；Preferably, z is 1~7 integer；
The number-average molecular weight of the end-silicane-group block polyether prepolymer is 6000~40000 dalton；Preferably, it is described
The number-average molecular weight of end-silicane-group block polyether prepolymer is 8000~30000 dalton.
Preferably, the plasticizer is the polypropylene glycol of 1000~6000 dalton of number-average molecular weight.
Preferably, the white carbon is vapor phase method hydrophabic silica, and specific surface area is 100~400m2/g。
It is further preferred that the white carbon is vapor phase method hydrophabic silica, specific surface area is 130~300m2/g。
Preferably, the deicer is oxazole alkanes, hexamethyldisilazane, vinyltrimethoxysilane, ethylene
At least one of ethyl triethoxy silicane alkane.
It is further preferred that the deicer is vinyltrimethoxysilane.
Preferably, the ultraviolet absorber is benzotriazole, benzophenone class, salicylic acid esters, group-substituted acrylonitrile, three
At least one of piperazine class.
Preferably, the light stabilizer is hindered amine light stabilizer.
Preferably, the vulcanizing agent is containing there are six the silane of trimethoxy or triethoxy.
It is further preferred that the vulcanizing agent is two (3- trimethoxy-silylpropyls) amine, bis- [3- (trimethoxies
Base silicon substrate) propyl] ethylenediamine, At least one of, wherein, R is methyl
Or ethyl.
Still further preferably, the vulcanizing agent for bis- [3- (trimethoxy silicon substrate) propyl] ethylenediamines,At least one of, wherein, R is methyl or ethyl.
Preferably, the adhesion promoter be amino silicone, sulfydryl siloxanes, in epoxy radical siloxane at least
It is a kind of.
It is further preferred that the adhesion promoter is aminopropyl trimethoxysilane, aminopropyl-triethoxy silicon
Alkane, ureido-propyl trimethoxy silane, ureidopropyltriethoxysilane, N- (β-aminoethyl)-γ-aminopropyl trimethoxy silicon
Alkane, N- (β-aminoethyl)-gamma-aminopropyl-triethoxy-silane, diethylenetriamine base propyl trimethoxy silicane, γ-shrink are sweet
At least one in oily ether oxygen propyl trimethoxy silicane, γ-mercaptopropyl trimethoxysilane, gamma-mercaptopropyltriethoxysilane
Kind.
Still further preferably, the adhesion promoter for aminopropyl trimethoxysilane, N- (β-aminoethyl)-
At least one of γ-aminopropyltrimethoxysilane.
Preferably, the catalyst is stannous octoate, dibutyl tin laurate, the just pungent tin of lauric acid two, oxalic acid
At least one of dibutyl tin, two (dodecyl sulphur) dibutyl tins, dimercapto 2-ethyl hexyl ethanoate stannous methide.
It is further preferred that the catalyst is at least one of stannous octoate, dibutyl tin laurate.
The preparation method of the above-mentioned silane-modified block polyether elastic sealant of high intensity, includes the following steps：
1) it is end-silicane-group block polyether prepolymer, plasticizer, nano-calcium carbonate, white carbon, ultraviolet absorber and light is steady
Determine agent and add in blender, be stirred under vacuum 2~3h；
2) treat that the mixed material temperature of step 1) is down to 50 DEG C hereinafter, add in deicer, vulcanizing agent and adhesion promoter,
Continue 20~40min of vacuum stirring；
3) catalyst is added in, 20~40min is stirred under vacuum, obtains the silane-modified block polyether elastic sealant of high intensity.
The present invention is made further explanation and description with reference to specific embodiment.
Embodiment 1：
A kind of silane-modified block polyether elastic sealant of high intensity, preparation method are as follows：
1) by 2kg dimethoxy-methyls propyl silane sealing end block polyether prepolymer (8000 dalton of number-average molecular weight),
200g polypropylene glycols (4000 dalton of number-average molecular weight), 2.4kg nano-calcium carbonates, 240g hydrophobicity aerosils (ratio
Surface area is 300m2/ g), 10g ultraviolet absorbers UV-326 (2- (2- hydroxyl -3- tertiary butyl -5- aminomethyl phenyls) -5- chlorobenzenes
And triazole) and 10g be obstructed Ammonia light stabilizer Tinuvin 770 (bis(2,2,6,6-tetramethyl-4-piperidyl)sebacate)
Planetary mixer is added in, material is made to be warming up to 100~110 DEG C, is stirred under vacuum 3h；
2) treat that the mixed material temperature of step 1) is down to 50 DEG C hereinafter, addition 60g vinyltrimethoxysilanes, 20g are bis-
[3- (trimethoxy silicon substrate) propyl] ethylenediamine and 100g N- (β-aminoethyl)-gamma-aminopropyl-triethoxy-silane continue true
Sky stirring 30min；
3) 20g dibutyl tin laurates are added in, 30min is stirred under vacuum, obtains the silane-modified block polyether bullet of high intensity
Property fluid sealant.
Note：The structural formula of dimethoxy-methyl propyl silane sealing end block polyether prepolymer described in step 1) is as follows：
Embodiment 2：
A kind of silane-modified block polyether elastic sealant of high intensity, preparation method are as follows：
1) by 2kg trimethoxies propyl silane sealing end block polyether prepolymer (12000 dalton of number-average molecular weight), 400g
Polypropylene glycol (3000 dalton of number-average molecular weight), 2kg nano-calcium carbonates, 200g hydrophobicity aerosil (specific surface areas
For 300m2/ g), 2g ultraviolet absorbers UV-326 (2- (2- hydroxyl -3- tertiary butyl -5- aminomethyl phenyls) -5- chlorinated benzotriazoles)
With 20g be obstructed Ammonia light stabilizer Tinuvin 770 (bis(2,2,6,6-tetramethyl-4-piperidyl)sebacate) add in planet
Blender makes material be warming up to 100~110 DEG C, is stirred under vacuum 2.5h；
2) treat that the mixed material temperature of step 1) is down to 50 DEG C hereinafter, addition 30g vinyltrimethoxysilanes, 40g are bis-
[3- (trimethoxy silicon substrate) propyl] ethylenediamine and 80g N- (β-aminoethyl)-gamma-aminopropyl-triethoxy-silane continue vacuum
Stir 30min；
3) 20g dibutyl tin laurates are added in, 40min is stirred under vacuum, obtains the silane-modified block polyether bullet of high intensity
Property fluid sealant.
Note：The structural formula of trimethoxy propyl silane sealing end block polyether prepolymer described in step 1) is as follows：
Embodiment 3：
A kind of silane-modified block polyether elastic sealant of high intensity, preparation method are as follows：
1) by 2kg triethoxy methyl silicanes sealing end block polyether prepolymer (16000 dalton of number-average molecular weight), 600g
Polypropylene glycol (2000 dalton of number-average molecular weight), 1.8kg nano-calcium carbonates, 160g hydrophobicity aerosil (specific surfaces
Product is 200m2/ g), 10g ultraviolet absorbers UV-327 (2- (2 '-hydroxyl -3 ', 5 '-di-tert-butyl-phenyl) -5- chloro benzos three
Azoles) and 8g be obstructed Ammonia light stabilizer Tinuvin 770 (bis(2,2,6,6-tetramethyl-4-piperidyl)sebacate) add in row
Star blender makes material be warming up to 100~110 DEG C, is stirred under vacuum 2h；
2) treat that the mixed material temperature of step 1) is down to 50 DEG C hereinafter, adding in 20g vinyltrimethoxysilanes, 60gWith 60g N- (β-aminoethyl)-γ-aminopropyltrimethoxysilane, after
It is continuous to be stirred under vacuum 30min；
3) 3g stannous octoates are added in, 30min is stirred under vacuum, obtains the silane-modified block polyether elastic sealant of high intensity.
Note：The structural formula of triethoxy methyl silicane sealing end block polyether prepolymer described in step 1) is as follows：
Embodiment 4：
A kind of silane-modified block polyether elastic sealant of high intensity, preparation method are as follows：
1) by 2kg trimethoxymethylsila,es sealing end block polyether prepolymer (21000 dalton of number-average molecular weight), 800g
Polypropylene glycol (2000 dalton of number-average molecular weight), 1.6kg nano-calcium carbonates, 100g hydrophobicity aerosil (specific surfaces
Product is 130m2/ g), 20g ultraviolet absorbers UV-327 (2- (2 '-hydroxyl -3 ', 5 '-di-tert-butyl-phenyl) -5- chloro benzos three
Azoles) and 2g be obstructed Ammonia light stabilizer Tinuvin 770 (bis(2,2,6,6-tetramethyl-4-piperidyl)sebacate) add in row
Star blender makes material be warming up to 100~110 DEG C, is stirred under vacuum 2h；
2) treat that the mixed material temperature of step 1) is down to 50 DEG C hereinafter, addition 20g vinyltrimethoxysilanes, 80g are bis-
[3- (trimethoxy silicon substrate) propyl] ethylenediamine and 60g N- (β-aminoethyl)-gamma-aminopropyl-triethoxy-silane continue vacuum
Stir 30min；
3) 2g stannous octoates are added in, 30min is stirred under vacuum, obtains the silane-modified block polyether elastic sealant of high intensity.
Note：The structural formula of trimethoxymethylsila,e sealing end block polyether prepolymer described in step 1) is as follows：
Embodiment 5：
A kind of silane-modified block polyether elastic sealant of high intensity, preparation method are as follows：
1) by 2kg trimethoxymethylsila,es sealing end block polyether prepolymer (30000 dalton of number-average molecular weight), 800g
Polypropylene glycol (1000 dalton of number-average molecular weight), 1.2kg nano-calcium carbonates, 100g hydrophobicity aerosil (specific surfaces
Product is 100m2/ g), 10g ultraviolet absorbers UV-327 (2- (2 '-hydroxyl -3 ', 5 '-di-tert-butyl-phenyl) -5- chloro benzos three
Azoles) and 10g be obstructed Ammonia light stabilizer Tinuvin 770 (bis(2,2,6,6-tetramethyl-4-piperidyl)sebacate) addition
Planetary mixer makes material be warming up to 100~110 DEG C, is stirred under vacuum 2h；
2) treat that the mixed material temperature of step 1) is down to 50 DEG C hereinafter, addition 20g vinyltrimethoxysilanes, 100g are bis-
[3- (trimethoxy silicon substrate) propyl] ethylenediamine and 20g N- (β-aminoethyl)-gamma-aminopropyl-triethoxy-silane continue vacuum
Stir 25min；
3) 3g stannous octoates are added in, 30min is stirred under vacuum, obtains the silane-modified block polyether elastic sealant of high intensity.
Note：The structural formula of trimethoxymethylsila,e sealing end block polyether prepolymer described in step 1) is as follows：
Comparative example：
A kind of polyether seal glue, preparation method are as follows：
1) by 2kg dimethoxy-methyl propyl Terminated Polyether Prepolymer, (Japanese Zhong Yuan chemical companies MS-S203H, number are divided equally
Son amount is more than 8000 dalton), 200g polypropylene glycols (4000 dalton of number-average molecular weight), 2.4kg nano-calcium carbonates, 240g dredge
Aqueous aerosil (specific surface area 300m2/ g), 10g ultraviolet absorbers UV-327 (2- (2 '-hydroxyl -3 ', 5 '-two uncles
Butyl phenyl) -5- chlorinated benzotriazoles) and 10g be obstructed Ammonia light stabilizer Tinuvin770 (bis- (2,2,6,6- tetramethyls -4-
Piperidyl) sebacate) planetary mixer is added in, material is made to be warming up to 100~110 DEG C, is stirred under vacuum 3h；
2) treat that the mixed material temperature of step 1) is down to 50 DEG C hereinafter, adding in 40g vinyltrimethoxysilanes, 60g ammonia
Propyl trimethoxy silicane and 260g N- (β-aminoethyl)-gamma-aminopropyl-triethoxy-silane continue to be stirred under vacuum 30min；
3) 20g dibutyl tin laurates are added in, 30min is stirred under vacuum, obtains polyether seal glue.
Test case：
Standard batten is made in fluid sealant in Examples 1 to 5 and comparative example, in 25 DEG C, the environment of 50% relative humidity
Middle curing 7 days, then be tested for the property, test result is as follows shown in table：
The performance test results of the fluid sealant of 1 Examples 1 to 5 of table and comparative example
Note：It tensile strength and is tested with elongation at break according to national standard GB/T 528-2009, shear strength is according to state
Mark GB/T7124-2008 is tested.
Above-described embodiment is the preferable embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any Spirit Essences without departing from the present invention with made under principle change, modification, replacement, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (10)
1. a kind of silane-modified block polyether elastic sealant of high intensity, it is characterised in that：It is made of the raw material of following mass parts：
End-silicane-group block polyether prepolymer：100 parts；
Plasticizer：10~40 parts；
Nano-calcium carbonate：60~120 parts；
White carbon：5~12 parts；
Deicer：1~3 part；
Ultraviolet absorber：0.1~1 part；
Light stabilizer：0.1~1 part；
Vulcanizing agent：1~5 part；
Adhesion promoter：1~5 part；
Catalyst：0.1~1 part.
2. the silane-modified block polyether elastic sealant of high intensity according to claim 1, it is characterised in that：The end
The general structure of silane base block polyether prepolymer is：Its
In, R1ForOr
R2For-OCH2O-、-OCH2CH2O-、-OCO(CH2)1~8CH2O-、 In one kind；
R3For-CH2CH2CH2CH2O-；
R4For
R5For C1~C5Alkyl, methoxyl group, one kind in ethyoxyl；
R6For methyl or ethyl；
M is 17~138 integer；
N is 13~110 integer；
Z is 1~20 integer；
The number-average molecular weight of the end-silicane-group block polyether prepolymer is 6000~40000 dalton.
3. the silane-modified block polyether elastic sealant of high intensity according to claim 1, it is characterised in that：The increasing
Mould the polypropylene glycol that agent is 1000~6000 dalton of number-average molecular weight.
4. the silane-modified block polyether elastic sealant of high intensity according to claim 1, it is characterised in that：Described is white
Carbon black is vapor phase method hydrophabic silica, and specific surface area is 100~400m2/g。
5. the silane-modified block polyether elastic sealant of high intensity according to claim 1, it is characterised in that：Described removes
Aqua is at least one in oxazole alkanes, hexamethyldisilazane, vinyltrimethoxysilane, vinyltriethoxysilane
Kind.
6. the silane-modified block polyether elastic sealant of high intensity according to claim 1, it is characterised in that：The purple
Outer absorbent is at least one of benzotriazole, benzophenone class, salicylic acid esters, group-substituted acrylonitrile, triazines；Described
Light stabilizer is hindered amine light stabilizer.
7. the silane-modified block polyether elastic sealant of high intensity according to claim 1, it is characterised in that：The sulphur
Agent is containing there are six the silane of trimethoxy or triethoxy.
8. the silane-modified block polyether elastic sealant of high intensity according to claim 1, it is characterised in that：Described is attached
Adhesion promoter is at least one of amino silicone, sulfydryl siloxanes, epoxy radical siloxane.
9. the silane-modified block polyether elastic sealant of high intensity according to claim 1, it is characterised in that：Described urges
Agent is stannous octoate, dibutyl tin laurate, the just pungent tin of lauric acid two, dibutyltin diacetate, two (dodecyl sulphur)
At least one of dibutyl tin, dimercapto 2-ethyl hexyl ethanoate stannous methide.
10. the preparation side of the silane-modified block polyether elastic sealant of high intensity in claim 1~9 described in any one
Method, it is characterised in that：Include the following steps：
1) by end-silicane-group block polyether prepolymer, plasticizer, nano-calcium carbonate, white carbon, ultraviolet absorber and light stabilizer
Blender is added in, is stirred under vacuum 2~3h；
2) treat that the mixed material temperature of step 1) is down to 50 DEG C hereinafter, addition deicer, vulcanizing agent and adhesion promoter, continue
It is stirred under vacuum 20~40min；
3) catalyst is added in, 20~40min is stirred under vacuum, obtains the silane-modified block polyether elastic sealant of high intensity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711377043.1A CN108130033B (en) | 2017-12-19 | 2017-12-19 | High-strength silane modified block polyether elastic sealant and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711377043.1A CN108130033B (en) | 2017-12-19 | 2017-12-19 | High-strength silane modified block polyether elastic sealant and preparation method thereof |
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| CN108893061A (en) * | 2018-07-12 | 2018-11-27 | 广西德本仕密封材料有限公司 | A kind of weather-proof dual-component silicane modified polyether seal glue and preparation method thereof |
| CN109652008A (en) * | 2018-12-26 | 2019-04-19 | 上海东大化学有限公司 | A kind of silane-modified doors and windows sealing glue and preparation method thereof |
| CN109722222A (en) * | 2018-12-26 | 2019-05-07 | 上海东大化学有限公司 | A kind of silane-modified filleting glue and preparation method thereof |
| CN109796157A (en) * | 2018-12-26 | 2019-05-24 | 上海东大化学有限公司 | Silane-modified U.S. seam glue of one kind and preparation method thereof |
| CN111004607A (en) * | 2019-12-20 | 2020-04-14 | 上海东大化学有限公司 | Flame-retardant silane modified sealant and preparation and curing methods thereof |
| CN112538332A (en) * | 2020-12-08 | 2021-03-23 | 浙江皇马科技股份有限公司 | High-modulus silane-terminated polymer resin windshield adhesive and preparation method thereof |
| CN113122174A (en) * | 2021-04-07 | 2021-07-16 | 吉和昌新材料(荆门)有限公司 | High-transparency mildew-proof silane modified polymer sealant and preparation method and application thereof |
| CN114874747A (en) * | 2022-05-05 | 2022-08-09 | 安徽斯迈特新材料股份有限公司 | Preparation method of high-temperature-resistant and strong-ultraviolet-resistant MS (Murashige & Skoog) adhesive |
| CN116254085A (en) * | 2023-02-15 | 2023-06-13 | 湖北回天新材料股份有限公司 | Weather-resistant MS door and window glue and preparation method thereof |
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| WO2022122782A1 (en) * | 2020-12-08 | 2022-06-16 | Zephyros, Inc. | Composition comprising silyl-modified prepolymer and highly structured carbon black |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108893061A (en) * | 2018-07-12 | 2018-11-27 | 广西德本仕密封材料有限公司 | A kind of weather-proof dual-component silicane modified polyether seal glue and preparation method thereof |
| CN109652008A (en) * | 2018-12-26 | 2019-04-19 | 上海东大化学有限公司 | A kind of silane-modified doors and windows sealing glue and preparation method thereof |
| CN109722222A (en) * | 2018-12-26 | 2019-05-07 | 上海东大化学有限公司 | A kind of silane-modified filleting glue and preparation method thereof |
| CN109796157A (en) * | 2018-12-26 | 2019-05-24 | 上海东大化学有限公司 | Silane-modified U.S. seam glue of one kind and preparation method thereof |
| CN111004607A (en) * | 2019-12-20 | 2020-04-14 | 上海东大化学有限公司 | Flame-retardant silane modified sealant and preparation and curing methods thereof |
| CN112538332A (en) * | 2020-12-08 | 2021-03-23 | 浙江皇马科技股份有限公司 | High-modulus silane-terminated polymer resin windshield adhesive and preparation method thereof |
| CN113122174A (en) * | 2021-04-07 | 2021-07-16 | 吉和昌新材料(荆门)有限公司 | High-transparency mildew-proof silane modified polymer sealant and preparation method and application thereof |
| CN114874747A (en) * | 2022-05-05 | 2022-08-09 | 安徽斯迈特新材料股份有限公司 | Preparation method of high-temperature-resistant and strong-ultraviolet-resistant MS (Murashige & Skoog) adhesive |
| CN116254085A (en) * | 2023-02-15 | 2023-06-13 | 湖北回天新材料股份有限公司 | Weather-resistant MS door and window glue and preparation method thereof |
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