CN110016804A - A kind of high viscosity heat dissipation UV resistant shear thickening liquid and preparation method thereof - Google Patents
A kind of high viscosity heat dissipation UV resistant shear thickening liquid and preparation method thereof Download PDFInfo
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- CN110016804A CN110016804A CN201910307737.0A CN201910307737A CN110016804A CN 110016804 A CN110016804 A CN 110016804A CN 201910307737 A CN201910307737 A CN 201910307737A CN 110016804 A CN110016804 A CN 110016804A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/73—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof
- D06M11/74—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof with carbon or graphite; with carbides; with graphitic acids or their salts
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/77—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof
- D06M11/79—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof with silicon dioxide, silicic acids or their salts
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/165—Ethers
- D06M13/17—Polyoxyalkyleneglycol ethers
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/53—Polyethers
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/20—Polyalkenes, polymers or copolymers of compounds with alkenyl groups bonded to aromatic groups
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/25—Resistance to light or sun, i.e. protection of the textile itself as well as UV shielding materials or treatment compositions therefor; Anti-yellowing treatments
Abstract
The invention discloses a kind of high viscosity heat dissipation UV resistant type shear thickening liquid, the mass fraction of raw material contained by the shear thickening liquid and each raw material are as follows: 140~160 parts of preparing spherical SiO 2,30~50 parts of polyethylene glycol 400,10~20 parts of polyethylene glycol-800,5~10 parts of graphene, 1~4 part of montmorillonite.The advantages that preparation process of the present invention is easy, low production cost, it is often more important that shear thickening significant effect, it is big in shear history medium viscosity, characteristic is obvious, and has excellent heating conduction, has new breakthrough in the characteristic of the Use of Flexible Protective Materials of shear thickening liquid preparation.
Description
Technical field
The present invention relates to functional material technical fields, have high viscosity heat dissipation UV resistant shearing more particularly, to one kind
Thickening liquid and preparation method thereof.
Background technique
The state of liquid or dispersion colloid is presented in shear thickening liquid under normal circumstances, when by more than a certain critical shear
Or when percussion, viscosity is risen rapidly, and shows the general resistivity of solid.After external force revocation, shear thickening
Liquid restores original state again, is a kind of reversible non-newtonian fluid behavior.Its unique shear thickening behavior makes STF extensive
Applied to all kinds of protective materials.
STF is a kind of nano-particle solution in solid, liquid admixture, is suspended in by extremely small silicon particle dispersion
It is formed in organic solvent.In the selection of decentralized medium, usually require that its is nontoxic, stablize be unlikely to deteriorate, adaptive temperature range is wide,
Viscosity is less big and has certain suspending power.Common decentralized medium has ethylene glycol (EG), propylene glycol (PG), butanediol
(BG), most common is polyethylene glycol (PEG).
With the further investigation to shear thickening liquid, it is found that its shear thickening behavior has not in the proportion of different material
Same power, in the shockproof field of resistance to compression, shear thickening behavior is more obvious, and product effect is better.
Summary of the invention
In view of the above-mentioned problems existing in the prior art, the applicant provides a kind of high viscosity heat dissipation UV resistant types
Shear thickening liquid and preparation method thereof.The advantages that preparation process of the present invention is easy, low production cost, it is often more important that shearing
Thickening effect is significant, and big in shear history medium viscosity, characteristic is obvious, and has excellent heating conduction, in shear thickening liquid
There is new breakthrough in the characteristic of the Use of Flexible Protective Materials of preparation.
Technical scheme is as follows:
A kind of high viscosity radiates UV resistant type shear thickening liquid, raw material contained by the shear thickening liquid and each raw material
Mass fraction are as follows: 140~160 parts of preparing spherical SiO 2,30~50 parts of polyethylene glycol 400,10~20 parts of polyethylene glycol-800,
5~10 parts of graphene, 1~4 part of montmorillonite.
The partial size of the graphene is 2~10nm；The partial size of the preparing spherical SiO 2 particles is 10~20nm, the illiteracy
The partial size of de- grogs is in 150~200nm.
A kind of preparation method of high viscosity heat dissipation UV resistant shear thickening liquid, the preparation method include following step
It is rapid:
(1) 25 DEG C at a temperature of, by 1~4 part of montmorillonite, 5~10 parts of graphene and 140~160 parts of ball
Shape nano-silicon dioxide particle is added in 40~70 parts of polyethylene glycol 400 and the mixed solution of polyethylene glycol-800, is opened super
Sound wave and constant speed stir instrument, and ultrasonic wave is 20000~30000Hz, and it is 1200r/min that constant speed, which stirs instrument revolving speed, every to be added 25 parts
1 part of graphene is added after spherical nanometer silica particle, so on circulate, is eventually adding 1~4 part of montmorillonite, point
It dissipates 60~100 minutes, obtains uniform dispersion liquid；
(2) then dispersion liquid obtained by step (1) is placed in vacuum drying oven, it is small that 12~20 is stood at a temperature of 25~45 DEG C
When, bubble removal has obtained stable high viscosity heat dissipation UV resistant shear thickening liquid；Each raw material is in terms of mass fraction.
A kind of application of the high viscosity heat dissipation UV resistant shear thickening liquid, the high viscosity heat dissipation UV resistant are cut
It cuts thickening liquid and passes through and pad, spray or flip-clip is compound for fabric.
The graphene is by pretreatment, the pretreated method are as follows: by the graphene of nano-scale with it is silane coupled
Agent KH570 mixing, is dissolved in dehydrated alcohol, by ultrasonic disperse, filters, is dried in vacuo the modified nanometer stone in obtained surface
Ink.
The mass ratio of the graphene and silane coupling agent KH570 are 1:5~20；The dosage of the dehydrated alcohol is graphite
With 15~30 times of silane coupling agent KH570 gross mass.
The graphene carries out freeze-drying process again after pretreatment.
The montmorillonite is handled by cationic surfactant cetyl trimethylammonium bromide, the montmorillonite
It is 5:3~3.5 with the mass ratio of cetyl trimethylammonium bromide, the mass ratio of montmorillonite and aqueous solution is 20~30:1.
The present invention is beneficial to be had the technical effect that
Dispersed phase used is also added into graphene in addition to conventional silicon dioxide granule.Graphene is one kind by honeycomb
Carbon constitute individual layer laminated structure carbon material, thickness is about 0.334nm, have big specific surface area, good thermal stability and
Chemical stability, stronger hydrophobicity are easy to the advantages that being chemically modified, and thermal conductivity (the about 5000W with superelevation
M-1K-1), these properties apply it preferably in Heat Conduction Material field.Graphene is two-dimensional material, interlayer model
Moral China active force is weaker, there is excellent frictional behavior, so its mobile performance is good compared with general shear thickening fluid, in shear stress
Under effect, particle aggregation can drive silicon dioxide granule to reunite faster one since friction is small between graphene layer
Rise, therefore realize and reach critical viscosity under lower shear rate, and viscosity is higher than general shear thickening fluid, illustrate its
Effect is more preferable in terms of resistance to compression damping.
It has carried out surface by pretreated graphene to be modified, the dispersion of graphene is due to graphene and modifier molecules
Between biggish steric hindrance and stronger electrostatic interaction combination as a result, surfactant molecule is adsorbed on graphene film
Layer two sides can effectively avoid the reunion between graphene sheet layer by the effect of electrostatic repulsion or Van der Waals force, so that graphene
Disperse in the solution more uniform.The montmorillonite being added has very strong adsorption capacity and cation exchange property, resistance to ultraviolet
It linearly can be very well.
Detailed description of the invention
Fig. 1 is the flow diagram of preparation method of the present invention.
Fig. 2 is shear thickening liquid of the present invention and the compound padding process schematic diagram of fabric.
Specific embodiment
With reference to the accompanying drawings and examples, the present invention is specifically described.
Embodiment 1
A kind of preparation method of high viscosity heat dissipation UV resistant shear thickening liquid, the preparation method include following step
It is rapid:
(1) 25 DEG C at a temperature of, by 1 part of montmorillonite, 5 parts of graphene and 140 parts of ball shaped nano titanium dioxide
Silicon particle is added in the mixed solution of 30 parts of polyethylene glycol 400 and 10 parts of polyethylene glycol-800, opens ultrasonic wave and constant speed
Instrument is stirred, ultrasonic wave is 25000 hertz, and it is 1200r/min, 25 parts of spherical nano-silicon dioxides of every addition that constant speed, which stirs instrument revolving speed,
1 part of graphene is added after particle, so on circulate, 1 part of montmorillonite is eventually adding, disperses 80 minutes, is obtained uniform
Dispersion liquid；
(2) then dispersion liquid obtained by step (1) is placed in vacuum drying oven, stands 16 hours at a temperature of 30 DEG C, bubble
Removal has obtained stable high viscosity heat dissipation UV resistant shear thickening liquid；Each raw material is in terms of mass fraction.
Embodiment 2
A kind of preparation method of high viscosity heat dissipation UV resistant shear thickening liquid, the preparation method include following step
It is rapid:
(1) 25 DEG C at a temperature of, by 2 parts of montmorillonite, 7 parts of graphene and 150 parts of ball shaped nano titanium dioxide
During silicon particle is added in the mixed solution of 40 parts of polyethylene glycol 400 and 15 parts of polyethylene glycol-800, ultrasonic wave and perseverance are opened
Speed stirring instrument, ultrasonic wave are 25000 hertz, and it is 1200r/min, 25 parts of ball shaped nano titanium dioxides of every addition that constant speed, which stirs instrument revolving speed,
1 part of graphene is added after silicon particle, so on circulate, is eventually adding 2 parts of montmorillonite, is dispersed 80 minutes, obtains uniformly
Dispersion liquid；
(2) then dispersion liquid obtained by step (1) is placed in vacuum drying oven, stands 16 hours at a temperature of 25 DEG C, bubble
Removal has obtained stable high viscosity heat dissipation UV resistant shear thickening liquid；Each raw material is in terms of mass fraction.
Embodiment 3
A kind of preparation method of high viscosity heat dissipation UV resistant shear thickening liquid, the preparation method include following step
It is rapid:
(1) 25 DEG C at a temperature of, by 4 parts of montmorillonite, 10 parts of graphene and 160 parts of ball shaped nano titanium dioxide
During silicon particle is added in the mixed solution of 50 parts of polyethylene glycol 400 and 20 parts of polyethylene glycol-800, ultrasonic wave and perseverance are opened
Speed stirring instrument, ultrasonic wave are 25000 hertz, and it is 1200r/min, 25 parts of ball shaped nano titanium dioxides of every addition that constant speed, which stirs instrument revolving speed,
1 part of graphene is added after silicon particle, so on circulate, is eventually adding 4 parts of montmorillonite, is dispersed 80 minutes, obtains uniformly
Dispersion liquid；
(2) then dispersion liquid obtained by step (1) is placed in vacuum drying oven, stands 16 hours at a temperature of 25 DEG C, bubble
Removal has obtained stable high viscosity heat dissipation UV resistant shear thickening liquid；Each raw material is in terms of mass fraction.
The graphene is by pretreatment, the pretreated method are as follows: by the graphene of 0.2g nano-scale and 2g silicon
Alkane coupling agent KH570 mixing, is dissolved in 40g dehydrated alcohol, by ultrasonic disperse 10h, then filters, during which use dehydrated alcohol
Clean filter cake；Filter cake is put into vacuum oven, 4h is dried in vacuo at 80 DEG C, filter cake is crushed and obtains surface-modified nano
Graphite, i.e., the described graphene.
The graphene carries out freeze-drying process after pretreatment, and temperature is -30 DEG C, and pressure is 5 pas.
The montmorillonite is by being modified, the method for modifying are as follows: 10 parts of montmorillonites are added into 300 parts of aqueous solutions, are placed in
It is heated to 70 DEG C in baking oven, is taken out after 1h, stirs 2h using constant speed stirring instrument, adds 6 parts of cetyl trimethylammonium bromides,
Continue to stir 2h, is taken out after standing 1h, be put into 80 DEG C of baking oven, taken out after 12h, the montmorillonite can be obtained.
Embodiment 4
A kind of preparation method of high viscosity heat dissipation UV resistant shear thickening liquid, the preparation method include following step
It is rapid:
(1) 25 DEG C at a temperature of, by 4 parts of montmorillonite, 10 parts of graphene and 160 parts of ball shaped nano titanium dioxide
Silicon particle is added in the mixed solution of 50 parts of polyethylene glycol 400 and 20 parts of polyethylene glycol-800, opens ultrasonic wave and constant speed
Instrument is stirred, ultrasonic wave is 25000 hertz, and it is 1200r/min, 25 parts of spherical nano-silicon dioxides of every addition that constant speed, which stirs instrument revolving speed,
1 part of graphene is added after particle, so on circulate, 4 parts of montmorillonite is eventually adding, disperses 80 minutes, is obtained uniform
Dispersion liquid；
(2) then dispersion liquid obtained by step (1) is placed in vacuum drying oven, stands 16 hours at a temperature of 25 DEG C, bubble
Removal has obtained stable high viscosity heat dissipation UV resistant shear thickening liquid；Each raw material is in terms of mass fraction.
The montmorillonite is by being modified, the method for modifying are as follows: 10 parts of montmorillonites are added into 300 parts of aqueous solutions, are placed in
It is heated to 70 DEG C in baking oven, is taken out after 1h, stirs 2h using constant speed stirring instrument, adds 6 parts of cetyl trimethylammonium bromides,
Continue to stir 2h, is taken out after standing 1h, be put into 80 DEG C of baking oven, taken out after 12h, the montmorillonite can be obtained.
Comparative example
The 12nm preparing spherical SiO 2 particles of 150 mass parts are gradually added into the polyglycol solution of 50 mass parts.?
At a temperature of 25 DEG C, instrument is stirred through ultrasonic wave and constant speed, ultrasonic wave is 20000 hertz, and constant speed stirs instrument revolving speed 1200r/min,
After being uniformly dispersed, vacuum drying oven is placed it in, 10 hours is stood at a temperature of 25 DEG C, removes bubble removing, finally obtain physical chemistry
The stable shear thickening liquid of performance.
Test case:
1, viscosity test: opening rotational rheometer, measurement rotor be connected in measuring head, and host is waited to automatically identify
Rotor model.Zero clearance correction is carried out, after the completion, clicking " ↑ " button makes measuring head lift certain altitude, appropriate amount of sample plus control
The center of warm lower plate.Click " ↓ " button, test rotor decline, according to the extra sample of prompt cleaning peritrochanteric.Cleaning
After the completion, vertebral plate is allowed to drop to measurement position.After test program is set, start the viscous of testing example and comparative example products obtained therefrom
Degree, test result is as follows shown in table 1.
Table 1
By table it can be seen that the initial viscosity of comparative example is 2~3 times of 1 initial viscosity of embodiment, the starting of embodiment 2 is viscous
3~4 times of degree, 5~6 times of 3 initial viscosity of embodiment, this is because joined graphene, coefficient of friction of graphene itself
Only 0.01, and graphene is two-dimensional material, layer and interlayer are easy to appear sliding, therefore the initial viscosity of embodiment is smaller.By
Upper table can be seen that the peak viscosity of embodiment 3 is maximum, and graphene theory Young's modulus reaches 1.0TPa, and intrinsic tensile strength is
130GPa, powerful mechanical property can provide strong support to the intensity of shear thickening liquid.The partial size of graphene compared with
It is small, belong to nanoscale, it is readily permeable to be distributed in decentralized medium, the using effect of particle is improved, and graphene is lamella
Structure is conducive to the interparticle reunion of thickening phase, is conducive to penetrate between spherical silicon dioxide granule, improves shearing
The effect of thickening.When graphene dosage is excessive, due to acting between the π-π of interlayer, graphene is easy to reunite, poor dispersion, institute
It can be declined with peak viscosity.But graphene described in embodiment 3, after pretreatment, dispersion performance increases.So real
Applying example 3, effect is best in terms of intensity, and embodiment 4 is taken second place.
2, shear thickening liquid obtained by embodiment and comparative example is steadily knitted by impregnation-squeezing technology and ultra-high molecular weight polyethylene
Object progress is compound, and padding concrete technology is, by the way of three leachings, three pressure, upper lower compression roller pressure is 0.2MPa, and pressure roller revolving speed is
1rad/s；It is respectively placed on identical cabinet, is shone with identical light source (infrared light supply in 275W infrared lamp simulated solar irradiation)
Cabinet is penetrated, it is as shown in table 2 to survey products obtained therefrom the performance test results for the intracorporal temperature of test box.
Table 2
| Time/min | 0 | 20 | 40 | 60 |
| 1 temperature of embodiment/DEG C | 25 | 35 | 41 | 55 |
| 2 temperature of embodiment/DEG C | 25 | 36 | 43 | 58 |
| 3 temperature of embodiment/DEG C | 25 | 41 | 47 | 62 |
| 4 temperature of embodiment/DEG C | 25 | 39 | 44 | 60 |
| Comparative example temperature/DEG C | 25 | 30 | 36 | 47 |
It can be seen from table as time increases, the temperature of embodiment and comparative example is all increasing, and embodiment increases
Amplitude is larger, this is because joined graphene in embodiment, and graphene has excellent heating conduction, and so implementing
The shear thickening liquid of example also has excellent heating conduction.
3, shear thickening liquid obtained by embodiment and comparative example is coated on ultra-high molecular weight polyethylene plain cloth, reference
The weatherability experimental standard of fiber, makes easy UV arc aging tester by oneself, and radiation intensity is 4000~4600 μ w/cm2, will
The fabric of embodiment and comparative example is put in respectively apart from the position below ultraviolet lamp 20cm, in the intermediate fixed filter of itself and ultraviolet lamp
Mating plate, can make the wavelength of the ultraviolet light through optical filter is in the ultraviolet sensitivity wavelength band of fiber.At interval of a timing
Between take out the sample of ultraviolet irradiation processing, carry out tensile strength test, test result is as shown in table 3.
Table 3
| Time/min | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Comparative example |
| 0 | 190Mpa | 218Mpa | 252Mpa | 232Mpa | 150Mpa |
| 30 | 170Mpa | 193Mpa | 208Mpa | 198Mpa | 110Mpa |
| 60 | 140Mpa | 156Mpa | 182Mpa | 173Mpa | 50Mpa |
From the data in the table, the amplitude that the tensile strength of embodiment reduces is lower than comparative example, therefore, the resistance to purple of embodiment
Outside line better performances, and due to the lamellar structure of montmorillonite, can not only reinforcing material ultra-violet resistance, moreover it is possible to increase material
Tensile strength.
Claims (8)
- A kind of UV resistant type shear thickening liquid 1. high viscosity radiates, which is characterized in that raw material contained by the shear thickening liquid And the mass fraction of each raw material are as follows: 140~160 parts of preparing spherical SiO 2,30~50 parts of polyethylene glycol 400, polyethylene glycol-800 10~20 parts, 5~10 parts of graphene, 1~4 part of montmorillonite.
- The UV resistant type shear thickening liquid 2. high viscosity according to claim 1 radiates, which is characterized in that the graphite The partial size of alkene is 2~10nm；The partial size of the preparing spherical SiO 2 particles is 10~20nm, and the partial size of the montmorillonite particle exists 150~200nm.
- 3. a kind of preparation method of the heat dissipation UV resistant shear thickening liquid of high viscosity described in claim 1, which is characterized in that institute Preparation method is stated to include the following steps:(1) 25 DEG C at a temperature of, 1~4 part of montmorillonite, 5~10 parts of graphene and 140~160 parts of spherical shape are received Rice silicon dioxide granule is added in 40~70 parts of polyethylene glycol 400 and the mixed solution of polyethylene glycol-800, opens ultrasonic wave Instrument is stirred with constant speed, ultrasonic wave is 20000~30000Hz, and it is 1200r/min, 25 parts of spherical shapes of every addition that constant speed, which stirs instrument revolving speed, 1 part of graphene is added after nano-silicon dioxide particle, so on circulate, is eventually adding 1~4 part of montmorillonite, dispersion 60 ~100 minutes, obtain uniform dispersion liquid；(2) then dispersion liquid obtained by step (1) is placed in vacuum drying oven, stands 12~20 hours at a temperature of 25~45 DEG C, Bubble removal has obtained stable high viscosity heat dissipation UV resistant shear thickening liquid；Each raw material is in terms of mass fraction.
- 4. a kind of application of the heat dissipation UV resistant shear thickening liquid of high viscosity described in claim 1, which is characterized in that the height Viscosity heat dissipation UV resistant shear thickening liquid, which passes through, pads, sprays or flip-clip is compound for fabric.
- The UV resistant shear thickening liquid 5. high viscosity according to claim 1 radiates, which is characterized in that the graphene By pretreatment, the pretreated method are as follows: mix the graphene of nano-scale with silane coupling agent KH570, be dissolved in In dehydrated alcohol, by ultrasonic disperse, filters, is dried in vacuo the modified nano-graphite in obtained surface.
- The UV resistant shear thickening liquid 6. high viscosity according to claim 5 radiates, which is characterized in that the graphene Mass ratio with silane coupling agent KH570 is 1:5~20；The dosage of the dehydrated alcohol is graphite and silane coupling agent KH570 15~30 times of gross mass.
- The UV resistant shear thickening liquid 7. high viscosity according to claim 1 radiates, which is characterized in that the graphene Carry out freeze-drying process again after pretreatment.
- The UV resistant shear thickening liquid 8. high viscosity according to claim 1 radiates, which is characterized in that the montmorillonite It is handled by cationic surfactant cetyl trimethylammonium bromide, the montmorillonite and cetyl trimethyl bromine Change the mass ratio of ammonium as 5:3~3.5, the mass ratio of montmorillonite and aqueous solution is 20~30:1.
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| CN114875819A (en) * | 2022-06-14 | 2022-08-09 | 浙江师范大学 | Novel road surface deceleration strip for municipal works |
| WO2024077722A1 (en) * | 2022-10-10 | 2024-04-18 | 南通强生新材料科技股份有限公司 | Light, thin and shock-resistant graphene glove and preparation method therefor |
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| CN110655072A (en) * | 2019-09-25 | 2020-01-07 | 深圳烯创先进材料研究院有限公司 | Shear thickening fluid composite graphene sponge protective material and preparation method thereof |
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