CN107227141A - A kind of weather-proof crack resistence type fluid sealant - Google Patents
A kind of weather-proof crack resistence type fluid sealant Download PDFInfo
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- CN107227141A CN107227141A CN201710510017.5A CN201710510017A CN107227141A CN 107227141 A CN107227141 A CN 107227141A CN 201710510017 A CN201710510017 A CN 201710510017A CN 107227141 A CN107227141 A CN 107227141A
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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
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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
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
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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
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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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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- 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
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- Chemical Kinetics & Catalysis (AREA)
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Abstract
The present invention relates to a kind of weather-proof crack resistence type fluid sealant, belong to field of adhesive technology.The present invention includes making weather-proof anticracking additive and base rubber by oneself, it is obtained by sterilizing spider silk, montmorillonite powder and gel concentrate mixed dehydration to make weather-proof anticracking additive by oneself, and gel concentrate be by Ludox and the mixing of lysine and fucose it is scattered after concentrate gained, base rubber is by α, ω dialkyl polydimethylsiloxanes, methyl-silicone oil, which are ground, dries gained, will finally make the mixing such as weather-proof anticracking additive, base rubber by oneself.The present invention utilizes silica sol modified spider silk and montmorillonite, spider silk and montmorillonite surface is carried silica gel particle, improves the compatibility between base rubber, reaches the purpose for improving fluid sealant crack resistance and weatherability;Silica gel particle can improve the heat endurance and cohesiveness of fluid sealant simultaneously, prevent glue surface from ftractureing, the characteristic of montmorillonite shielding ultraviolet rays also improves the weatherability of fluid sealant.
Description
Technical field
The present invention relates to a kind of weather-proof crack resistence type fluid sealant, belong to field of adhesive technology.
Background technology
Building sealant is one of main material of stone curtain wall, and it is mainly used in the sealing of stone curtain wall surface gaps.
To prevent the seepage of rainwater and the infiltration of air.The building sealant of stone curtain wall should have weatherability change, UV resistant,
The performances such as wet-heat resisting, ozone-resistant aging.More generally use silicone sealant for stone material at present.It is main in silicone sealant
Composition is silica, because ultraviolet can not destroy silica chain, so silicone sealant has good uvioresistant performance, is
A kind of highly stable chemical substance.When silicone sealant reacts with the water vapour in air, just gradually become hard solidification, and
With the excellent performance such as resistance to rainwater, ice and snow, ozone and high and low temperature.
The fluid sealant for the white clouds board that seam between current sheet material is used, has been material best on the market.But
Still do not reach life standard of the enterprise to client, can only achieve 5 years.Colloid aging, glue surface cracking occur over time, oozes
The situation of water.Often because quality guarantee period is long, cause remaining fund not received also, occur as soon as the phenomenons such as product infiltration so that remaining fund
It can not withdraw, influence the economic situation of enterprise.
Therefore, a kind of ageing-resistant stability is invented strong, it is not easy to crack, the fluid sealant of infiltration is prevented, to sheet material adhesive skill
Art field has positive meaning.
The content of the invention
Present invention mainly solves technical problem, the weatherability for fluid sealant at present on the market is poor, during useful effect
Between it is short, easily occur over time colloid aging, glue surface cracking and infiltration phenomenon, influence sealing effectiveness defect,
There is provided a kind of weather-proof crack resistence type fluid sealant.
In order to solve the above technical problems, the technical solution adopted by the present invention is:
A kind of weather-proof crack resistence type fluid sealant, including make weather-proof anticracking additive and base rubber by oneself, it is characterised in that:Described self-control
Weather-proof anticracking additive is obtained by sterilizing spider silk, montmorillonite powder and gel concentrate mixed dehydration.
Described gel concentrate be by Ludox and the mixing of lysine and fucose it is scattered after concentrate gained.
Described Ludox is made by following methods:
(1)Measure 1~2L mass fractions for 35% sodium silicate solution to be fitted into beaker, stirred with agitator, and while stirring to burning
It is 1mol/L hydrochloric acid that concentration is added dropwise in cup, adjusts sodium silicate solution pH to 5.5~6.0, continues 20~40min of stirring reaction;
(2)Treat after the completion of above-mentioned stirring, beaker is moved into water-bath, rise water-bath pot temperature continues to be incubated to 60~80 DEG C
After 30~40min of stirring reaction, stop stirring, obtain Ludox.
The preparation method of described gel concentrate is:It is 1 in mass ratio:1:10 successively add lysine and fucose
Enter into Ludox, stirring is mixed to get mixed liquor, then add into mixed liquor the DBSA of mixed liquor quality 5%
Sodium, continue stir mixing, obtain mixed dispersion liquid and be fitted into Rotary Evaporators, at 70~80 DEG C concentrated by rotary evaporation 20~
30min, obtains gel concentrate.
Described sterilizing spider silk is that spider silk is placed under uviol lamp after 20~30min of radiation sterilization to obtain.
Described montmorillonite powder is that montmorillonite is put into freezing crusher, at -30~-20 DEG C Freezing smashing 1~
200 mesh sieves are crossed after 2h, are collected obtained by sieving.
The preparation method of the described weather-proof anticracking additive of self-control is:It is 3 in mass ratio:1:50 will sterilizing spider silk, illiteracy
After de- soil powder and gel concentrate mixing, stir 3~5h with stirring rod and be fitted into centrifugal dehydrator, dehydration 10~
Resulting material is the weather-proof anticracking additive of self-control after 15min, dehydration.
The preparation method of described base rubber is:Count by weight, weigh 80~90 parts of α, alpha, omega-dihydroxy polydimethyl silicon
Oxygen alkane, 3~5 parts of methyl-silicone oils are added to 20~30min of ground and mixed in three-roll grinder, then mixed material is put into very
1~2h is dried in empty drying box at 130~140 DEG C, base rubber is obtained.
The preparation method of described weather-proof crack resistence type fluid sealant is:Count by weight, weigh 85~95 parts of base rubbers, 5
~8 parts of weather-proof anticracking additives of self-control, 0.3~0.5 part of 3- butyl -2- (1- ethyl pentyl groups) oxazolidine, 5~8 parts of methyl trimethoxies
TMOS and 1~2 part of tetraisopropyl titanate are sequentially added in planetary stirring machine, temperature be 70~80 DEG C, vacuum be
Discharged under the conditions of 0.07~0.09MPa after 1~2h of stirring mixing, squeeze into dentifrice tube and seal, produce weather-proof crack resistence type sealing
Glue.
The beneficial effects of the invention are as follows:
(1)Ludox is made with Ludox and lysine and fucose compounding first in the present invention, then has pole with silica sol modified
The spider silk of good tensile property and the montmorillonite with shielding ultraviolet rays ability, make spider silk and montmorillonite surface carry Silica hydrogel
Particle, so as to improve the compatibility between base rubber, the mesh for improving fluid sealant crack resistance and weatherability is reached in this, as filler
's;
(2)Other silica gel particle surface is rich in silicone hydroxyl, can occur dehydration contracting with the silicone hydroxyl of organosiloxane in base rubber
Reaction is closed, the generation bond energy Si-O-Si key bigger than Si-O key improves the heat endurance and cohesiveness of fluid sealant, prevent glue surface
Cracking phenomena improves the weatherability of fluid sealant again while generation, the characteristic of montmorillonite shielding ultraviolet rays further improves in addition
The weatherability of fluid sealant, has a extensive future.
Embodiment
Measure 1~2L mass fractions for 35% sodium silicate solution to be fitted into beaker, beaker be placed on magnetic stirrer,
Start mixer to be stirred with 200~300r/min rotating speeds, and it is 1mol/L hydrochloric acid that concentration, which is added dropwise, into beaker while stirring,
Sodium silicate solution pH to 5.5~6.0 is adjusted, continues 20~40min of stirring reaction;After the completion of to be mixed, beaker is moved into water-bath
In pot, rise water-bath pot temperature is to 60~80 DEG C, regulation mixer rotating speed to 350~450r/min, continues insulated and stirred reaction
After 30~40min, stop stirring, obtain Ludox;It is 1 in mass ratio:1:Lysine and fucose are added to silicon by 10 successively
In colloidal sol, with magnetic stirrer to obtain mixed liquor after 200~300r/min rotating speeds stirring mixing, 3~5min, then to mixed liquor
The middle neopelex for adding mixed liquor quality 5%, continues to stir 20~30min of mixing, obtains mixed dispersion liquid and fill
Enter in Rotary Evaporators, 20~30min of concentrated by rotary evaporation at 70~80 DEG C obtains gel concentrate;Collect 30~40g spiders
Silk is placed on 20~30min of radiation sterilization under uviol lamp, obtains the spider silk that sterilizes, then weigh 1~2kg montmorillonites and be put into freezing powder
In broken machine, 200 mesh sieves are crossed after 1~2h of Freezing smashing at -30~-20 DEG C, sieving is collected and obtains montmorillonite powder;By quality
Than for 3:1:After 50 mix sterilizing spider silk, montmorillonite powder and gel concentrate, stir 3~5h with stirring rod and load
In centrifugal dehydrator, 10~15min is dehydrated, resulting material is the weather-proof anticracking additive of self-control after dehydration;Count by weight,
80~90 parts of α are weighed, alpha, omega-dihydroxy polydimethyl siloxane, 3~5 parts of methyl-silicone oils, which are added in three-roll grinder, grinds mixed
20~30min is closed, then mixed material is put into vacuum drying chamber at 130~140 DEG C dry 1~2h, base rubber is obtained;
Count by weight, weigh 85~95 parts of base rubbers, 5~8 parts of weather-proof anticracking additives of self-control, 0.3~0.5 part of 3- butyl -2- (1-
Ethyl pentyl group) oxazolidine, 5~8 parts of MTMSs and 1~2 part of tetraisopropyl titanate sequentially add planetary stirring
In machine, temperature be 70~80 DEG C, vacuum be to be discharged after 1~2h of stirring mixing under the conditions of 0.07~0.09MPa, squeeze into toothpaste
Sealed in pipe, produce weather-proof crack resistence type fluid sealant.
Example 1
Measure 2L mass fractions for 35% sodium silicate solution to be fitted into beaker, beaker is placed on magnetic stirrer, start stirring
Machine is stirred with 300r/min rotating speeds, and it is 1mol/L hydrochloric acid that concentration, which is added dropwise, into beaker while stirring, and regulation sodium metasilicate is molten
Liquid pH to 6.0, continues stirring reaction 40min;After the completion of to be mixed, beaker is moved into water-bath, rise water-bath pot temperature is extremely
80 DEG C, regulation mixer rotating speed to 450r/min continues after insulated and stirred reaction 40min, stops stirring, obtain Ludox;Press
Mass ratio is 1:1:10 are successively added to lysine and fucose in Ludox, are stirred with magnetic stirrer with 300r/min rotating speeds
Mix and mixed liquor is obtained after mixing 5min, then the neopelex of mixed liquor quality 5% is added into mixed liquor, continue to stir
Mixing 30min is mixed, mixed dispersion liquid is obtained and is fitted into Rotary Evaporators, concentrated by rotary evaporation 30min, obtains gel at 80 DEG C
Concentrate;Collect 40g spider silks and be placed on radiation sterilization 30min under uviol lamp, obtain the spider silk that sterilizes, then weigh 2kg covering de-
Soil is put into freezing crusher, crosses 200 mesh sieves after Freezing smashing 2h at -20 DEG C, is collected sieving and is obtained montmorillonite powder;Press
Mass ratio is 3:1:After 50 mix sterilizing spider silk, montmorillonite powder and gel concentrate, stir 5h with stirring rod and fill
Enter in centrifugal dehydrator, be dehydrated 15min, resulting material is the weather-proof anticracking additive of self-control after dehydration;Count, claim by weight
90 parts of α are taken, alpha, omega-dihydroxy polydimethyl siloxane, 5 parts of methyl-silicone oils are added to ground and mixed 30min in three-roll grinder, then
Mixed material is put into vacuum drying chamber at 140 DEG C and dries 2h, base rubber is obtained;Count by weight, weigh 95 parts
Base rubber, 8 parts of weather-proof anticracking additives of self-control, 0.5 part of 3- butyl -2- (1- ethyl pentyl groups) oxazolidine, 8 parts of methyl trimethoxy epoxide silicon
Alkane and 2 parts of tetraisopropyl titanates are sequentially added in planetary stirring machine, are 80 DEG C, under the conditions of vacuum is 0.09MPa in temperature
Discharged after stirring mixing 2h, squeeze into dentifrice tube and seal, produce weather-proof crack resistence type fluid sealant.
Example 2
Measure 1L mass fractions for 35% sodium silicate solution to be fitted into beaker, beaker is placed on magnetic stirrer, start stirring
Machine is stirred with 200r/min rotating speeds, and it is 1mol/L hydrochloric acid that concentration, which is added dropwise, into beaker while stirring, and regulation sodium metasilicate is molten
Liquid pH to 5.5, continues stirring reaction 20min;After the completion of to be mixed, beaker is moved into water-bath, rise water-bath pot temperature is extremely
60 DEG C, regulation mixer rotating speed to 350r/min continues after insulated and stirred reaction 30min, stops stirring, obtain Ludox;Press
Mass ratio is 1:1:10 are successively added to lysine and fucose in Ludox, are stirred with magnetic stirrer with 200r/min rotating speeds
Mix and mixed liquor is obtained after mixing 3min, then the neopelex of mixed liquor quality 5% is added into mixed liquor, continue to stir
Mixing 20min is mixed, mixed dispersion liquid is obtained and is fitted into Rotary Evaporators, concentrated by rotary evaporation 20min, obtains gel at 70 DEG C
Concentrate;Collect 30g spider silks and be placed on radiation sterilization 20min under uviol lamp, obtain the spider silk that sterilizes, then weigh 1kg covering de-
Soil is put into freezing crusher, crosses 200 mesh sieves after Freezing smashing 1h at -30 DEG C, is collected sieving and is obtained montmorillonite powder;Press
Mass ratio is 3:1:After 50 mix sterilizing spider silk, montmorillonite powder and gel concentrate, stir 3h with stirring rod and fill
Enter in centrifugal dehydrator, be dehydrated 10min, resulting material is the weather-proof anticracking additive of self-control after dehydration;Count, claim by weight
80 parts of α are taken, alpha, omega-dihydroxy polydimethyl siloxane, 3 parts of methyl-silicone oils are added to ground and mixed 20min in three-roll grinder, then
Mixed material is put into vacuum drying chamber at 130 DEG C and dries 1h, base rubber is obtained;Count by weight, weigh 85 parts
Base rubber, 5 parts of weather-proof anticracking additives of self-control, 0.3 part of 3- butyl -2- (1- ethyl pentyl groups) oxazolidine, 5 parts of methyl trimethoxy epoxide silicon
Alkane and 1 part of tetraisopropyl titanate are sequentially added in planetary stirring machine, are 70 DEG C, under the conditions of vacuum is 0.07MPa in temperature
Discharged after stirring mixing 1h, squeeze into dentifrice tube and seal, produce weather-proof crack resistence type fluid sealant.
Example 3
Measure 2L mass fractions for 35% sodium silicate solution to be fitted into beaker, beaker is placed on magnetic stirrer, start stirring
Machine is stirred with 250r/min rotating speeds, and it is 1mol/L hydrochloric acid that concentration, which is added dropwise, into beaker while stirring, and regulation sodium metasilicate is molten
Liquid pH to 5.7, continues stirring reaction 30min;After the completion of to be mixed, beaker is moved into water-bath, rise water-bath pot temperature is extremely
70 DEG C, regulation mixer rotating speed to 400r/min continues after insulated and stirred reaction 35min, stops stirring, obtain Ludox;Press
Mass ratio is 1:1:10 are successively added to lysine and fucose in Ludox, are stirred with magnetic stirrer with 250r/min rotating speeds
Mix and mixed liquor is obtained after mixing 4min, then the neopelex of mixed liquor quality 5% is added into mixed liquor, continue to stir
Mixing 25min is mixed, mixed dispersion liquid is obtained and is fitted into Rotary Evaporators, concentrated by rotary evaporation 25min, obtains gel at 75 DEG C
Concentrate;Collect 35g spider silks and be placed on radiation sterilization 25min under uviol lamp, obtain the spider silk that sterilizes, then weigh 1kg covering de-
Soil is put into freezing crusher, crosses 200 mesh sieves after Freezing smashing 2h at -25 DEG C, is collected sieving and is obtained montmorillonite powder;Press
Mass ratio is 3:1:After 50 mix sterilizing spider silk, montmorillonite powder and gel concentrate, stir 4h with stirring rod and fill
Enter in centrifugal dehydrator, be dehydrated 12min, resulting material is the weather-proof anticracking additive of self-control after dehydration;Count, claim by weight
85 parts of α are taken, alpha, omega-dihydroxy polydimethyl siloxane, 4 parts of methyl-silicone oils are added to ground and mixed 25min in three-roll grinder, then
Mixed material is put into vacuum drying chamber at 135 DEG C and dries 1h, base rubber is obtained;Count by weight, weigh 90 parts
Base rubber, 6 parts of weather-proof anticracking additives of self-control, 0.4 part of 3- butyl -2- (1- ethyl pentyl groups) oxazolidine, 7 parts of methyl trimethoxy epoxide silicon
Alkane and 1 part of tetraisopropyl titanate are sequentially added in planetary stirring machine, are 75 DEG C, under the conditions of vacuum is 0.08MPa in temperature
Discharged after stirring mixing 2h, squeeze into dentifrice tube and seal, produce weather-proof crack resistence type fluid sealant.
Reference examples:Commercially available white clouds board fluid sealant
The examination and test of products:
1. method of testing:
(1)Test tensile strength and elongation at break:Test film is prepared according to GB/T 528, thickness is(2±0.2)Mm,
After cured under standard conditions 7d, removed from mould, dumbbell shaped standard specimen is made, tensile strength is tested on tensile testing machine
And elongation at break;
(2)Ultraviolet ageing performance:Glue is extruded into scraping blade is into thickness(2±0.2)Mm, solidifies 7 d at the standard conditions, will solidify
Film afterwards, which is positioned in ultraviolet ageing case, carries out aging, and the change tested after 4000h, observation film simultaneously tests its mechanical property
Energy;
(3)Wet and heat ageing resistant performance:Glue is extruded into scraping blade is into thickness(2±0.2)Mm, solidifies 7 d at the standard conditions, will be solid
It is 60 DEG C that film after change, which is positioned over temperature, and relative air humidity takes to be carried out in 90% climatic chamber after aging, 1500h
Go out film and test its mechanical property.
2. test result such as table 1.
Table 1
As shown in Table 1, the excellent in mechanical performance of fluid sealant prepared by the present invention, although in the test of ultraviolet ageing and hydrothermal aging
Under, tensile strength and elongation at break decrease, but mechanical property is higher than commercially available fluid sealant, with superior weatherability
Energy.
Claims (9)
1. a kind of weather-proof crack resistence type fluid sealant, including make weather-proof anticracking additive and base rubber by oneself, it is characterised in that:It is described from
It is obtained by sterilizing spider silk, montmorillonite powder and gel concentrate mixed dehydration to make weather-proof anticracking additive.
2. a kind of weather-proof crack resistence type fluid sealant according to claim 1, it is characterised in that:Described gel concentrate
Be by Ludox and the mixing of lysine and fucose it is scattered after concentrate gained.
3. a kind of weather-proof crack resistence type fluid sealant according to claim 2, it is characterised in that:Described Ludox be by with
Lower section method is made:
(1)Measure 1~2L mass fractions for 35% sodium silicate solution to be fitted into beaker, stirred with agitator, and while stirring to burning
It is 1mol/L hydrochloric acid that concentration is added dropwise in cup, adjusts sodium silicate solution pH to 5.5~6.0, continues 20~40min of stirring reaction;
(2)Treat after the completion of above-mentioned stirring, beaker is moved into water-bath, rise water-bath pot temperature continues to be incubated to 60~80 DEG C
After 30~40min of stirring reaction, stop stirring, obtain Ludox.
4. a kind of weather-proof crack resistence type fluid sealant according to claim 1 or 2, it is characterised in that:Described gel is dense
The preparation method of contracting thing is:It is 1 in mass ratio:1:10 are successively added to lysine and fucose in Ludox, stirring mixing
Mixed liquor is obtained, then the neopelex of mixed liquor quality 5% is added into mixed liquor, continues to stir mixing, is mixed
Close dispersion liquid and be fitted into Rotary Evaporators, 20~30min of concentrated by rotary evaporation at 70~80 DEG C obtains gel concentrate.
5. a kind of weather-proof crack resistence type fluid sealant according to claim 1, it is characterised in that:Described sterilizing spider silk is
Spider silk is placed under uviol lamp after 20~30min of radiation sterilization and obtained.
6. a kind of weather-proof crack resistence type fluid sealant according to claim 1, it is characterised in that:Described montmorillonite powder is
Montmorillonite is put into freezing crusher, 200 mesh sieves are crossed after 1~2h of Freezing smashing at -30~-20 DEG C, sieving institute is collected
.
7. a kind of weather-proof crack resistence type fluid sealant according to claim 1, it is characterised in that:The weather-proof anticracking of described self-control
The preparation method of additive is:It is 3 in mass ratio:1:50 mix sterilizing spider silk, montmorillonite powder and gel concentrate
Afterwards, stir 3~5h with stirring rod and be fitted into centrifugal dehydrator, be dehydrated 10~15min, resulting material is that self-control is resistance to after dehydration
Wait anticracking additive.
8. a kind of weather-proof crack resistence type fluid sealant according to claim 1, it is characterised in that:The preparation side of described base rubber
Method is:Count by weight, weigh 80~90 parts of α, alpha, omega-dihydroxy polydimethyl siloxane, 3~5 parts of methyl-silicone oils are added to
20~30min of ground and mixed in three-roll grinder, then mixed material is put into vacuum drying chamber at 130~140 DEG C
1~2h is dried, base rubber is obtained.
9. a kind of weather-proof crack resistence type fluid sealant according to claim 1, it is characterised in that:Described weather-proof crack resistence type
The preparation method of fluid sealant is:Count by weight, weigh 85~95 parts of base rubbers, 5~8 parts of weather-proof anticracking additives of self-control, 0.3
~0.5 part of 3- butyl -2- (1- ethyl pentyl groups) oxazolidine, 5~8 parts of MTMSs and 1~2 part of tetraisopropyl titanate
Sequentially add in planetary stirring machine, temperature be 70~80 DEG C, vacuum be stirring mixing 1 under the conditions of 0.07~0.09MPa
Discharged after~2h, squeeze into dentifrice tube and seal, produce weather-proof crack resistence type fluid sealant.
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2017
- 2017-06-28 CN CN201710510017.5A patent/CN107227141A/en active Pending
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CN1163288A (en) * | 1997-04-16 | 1997-10-29 | 中国科学院化学研究所 | Sandwiched Silicon rubber/montmorillonoid composite material and its preparing method |
CN105368379A (en) * | 2015-12-18 | 2016-03-02 | 广州市白云化工实业有限公司 | Silicone sealant with ultra-high strength and preparation method of silicone sealant |
CN106675510A (en) * | 2016-12-16 | 2017-05-17 | 常州市鼎日环保科技有限公司 | Method for preparing water-resisting and high-viscosity wood adhesive by utilizing fishing spider silks |
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杨淑丽 等: "《密封胶粘剂》", 30 April 2004, 中国石化出版社 * |
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