CN108641592A - A kind of preparation method of novel heat insulation material - Google Patents

A kind of preparation method of novel heat insulation material Download PDF

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Publication number
CN108641592A
CN108641592A CN201810561142.3A CN201810561142A CN108641592A CN 108641592 A CN108641592 A CN 108641592A CN 201810561142 A CN201810561142 A CN 201810561142A CN 108641592 A CN108641592 A CN 108641592A
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weight
parts
sio
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aeroge
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李志涛
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Xinyi Chino New Mstar Technology Ltd
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Xinyi Chino New Mstar Technology Ltd
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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
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D183/00—Coating compositions 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; Coating compositions based on derivatives of such polymers
    • C09D183/04—Polysiloxanes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08—Anti-corrosive paints
    • C09D5/10—Anti-corrosive paints containing metal dust
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/63—Additives non-macromolecular organic
    • 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
    • C08K3/02—Elements
    • C08K3/08—Metals
    • C08K2003/0831—Gold
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Thermal Insulation (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention discloses a kind of preparation methods of novel heat insulation material, using polyurethanes as raw material, fine SiO2Aeroge is thermal resistance material, silicon rubber and expended microsphere is added, while dibutyl phthalate and diaminodiphenylmethane is added, and nano material SiO is then added2Au nano-particles are prepared for compound cellulose aeroge by sol-gal process, by fine SiO2Aeroge is attached to cellulose microfibril surface, due to SiO2Very strong crosslinked action is produced with cellulose microfibril, the mechanical property of compound cellulose aeroge is made to be much better than common SiO2Aeroge.Heat-barrier material prepared by the present invention has many advantages, such as that caking property, tearing-resistant performance are good, resistance to chemical corrosion is good, wear-resisting property is good and mechanical performance is excellent.

Description

A kind of preparation method of novel heat insulation material
Technical field
The present invention relates to a kind of preparation methods of novel heat insulation material, and in particular to a kind of special heat-barrier material of construction material Preparation method.
Background technology
With heat-insulating property, the material of shielding action can be played to hot-fluid or composite body is referred to as heat-barrier material.It is heat-insulated Material is a kind of new material that the material good by water-proof thermal insulation material solution and heat-reflecting heat-insulating forms, the reflection of material collection, spoke Penetrate with cenosphere it is heat-insulated with it is integrated, high reflection can be carried out to the solar infrared and ultraviolet light of 400~2500nm ranges, can be with The effective heat for preventing the sun accumulates heating in body surface, and can carry out heat heat loss through radiation cooling automatically.Heat-barrier material It can be conducted to interior of articles every firmly outside heat when atmospheric temperature is very high, three large effects ensure that the object of brushing paint Body cools down, it is ensured that interior of articles space can keep the state of lasting constant temperature.It is reported that existing heat-barrier material currently on the market For product in sunlight strong, can reach reduces by 20 DEG C of body surface temperature or more, and cloudy day and night can cool down at 3 DEG C or more Or it is reduced to the effect consistent with atmospheric temperature.And heat-barrier material also has the effect of waterproof, especially for tiny Crackle has good waterproof, antiseepage effect；In addition to this, heat-barrier material is also rich in color, thin layer, decoration, self-cleaning, waterproof, The multiple efficacies such as moisture-proof, antiultraviolet aging, acid and alkali-resistance, anti-corrosion.
In addition, heat-barrier material usually have the characteristics that it is light it is loose, porous, thermal coefficient is small.Heat-barrier material widely makes It, being capable of effectively trap heat on naval vessels, being mainly used for the heat-insulated etc. of fire resisting separation, cabin insulation and high-temperature pipe It is conducted to interior of articles, reduces the indoor temperature in cabin, so as to improve the comfort level of officers and men's living environment is improved.Silica (SiO2) aeroge is a kind of common heat-barrier material, have the characteristics that light, thermal conductivity is low, but due to SiO2Aeroge is secondary Active force between particle is weaker, so have the shortcomings that intensity is low, poor toughness, and heat insulation is general, has in use Many limitations.The present invention is using Polyurethane composite material as matrix, fine SiO2Aeroge is thermal resistance filler, compound Fine SiO in the process2Aeroge generates crosslinking with framework material, can further improve the heat-proof quality of heat-barrier material.
Invention content
The invention discloses a kind of preparation method of novel heat insulation material, the heat-barrier material prepared in this approach is suitable for building It is heat-insulated to build object.Heat-barrier material prepared by the present invention have caking property, tearing-resistant performance is good, resistance to chemical corrosion is good, wearability The advantages that energy is good and mechanical performance is excellent.
1, a kind of preparation method of novel heat insulation material, it is characterised in that this approach includes the following steps：
1）Weigh the fine SiO of 56~72 parts by weight2Aeroge is positioned over 4h in 120 DEG C of baking ovens, is adsorbed in removing aeroge Moisture, it is spare；28~36 parts by weight polyurethanes are weighed, are taken out after being preheated at 60 DEG C, it will be by the fine of drying and processing SiO2Aerogel heat-proof filler is added than design in preheated polyurethanes by formulation weight, with the rotating speed magnetic of 200rmp Power stirs 30min；3.65 parts by weight diaminodiphenylmethane accurately are weighed in beaker, and the adjacent benzene two of 10.95 parts by weight is added Formic acid dibutyl ester obtains mixed solution after being ultrasonically treated 15min, and mixed solution addition has been mixed into SiO2Aerogel heat-proof is filled out In the polyurethanes of material, the SiO of 0.05 parts by weight dimethicone and 2.34~3.24 parts by weight is added2- Au nanoparticles Son continues to stir after mixing, is continually fed into the nitrogen of 30min high-purities, colorless gum liquid is obtained after mixing；
2）The methyl vinyl silicone rubber for weighing 40 parts by weight is sufficiently mixed uniformly with above-mentioned colloidal liquid, by 25 parts by weight Expended microsphere is added in silicon rubber, after stirring evenly, is evacuated 15min with vacuum pump, is cast in a mold, be placed in 60 In DEG C baking oven, after its solidification, oven temperature is then increased to 70 DEG C of temperature, continues to take out after drying 15min, is cooled to room Temperature obtains heat-barrier material.
Above-mentioned SiO2- Au nano-particle preparation methods are as follows：
After taking 16 parts by weight high purity waters to be heated to 100 DEG C, the 3- aminopropyl front threes of a concentration of 0.001mol/l of 16 parts by weight are added Oxysilane solution continues to be heated to 100 DEG C, and 10 parts by weight mass fractions are added while stirring for 1% sodium citrate, at 100 DEG C Heat preservation 30min recession goes heat source, cooled to room temperature to obtain red mixed solution, takes the above-mentioned red of 10 parts by weight at room temperature Solution is added to 2 parts by weight a concentration of 1.2 × 10 just prepared-4The 3-mercaptopropyi trimethoxy silane ethanol solution of mol/l In, after 60rmp low speed magnetic agitations 1h, it is passed through carbon dioxide gas 30min, continues plus 2 parts by weight mass fractions is 0.02% Sodium silicate solution, 6h is stood after magnetic agitation 5min, and 30 min of ultrasonic disperse places 24 h, 3 are centrifuged under the conditions of 5000rpm Secondary, the core-shell nano that silica shell thickness is about 2~4nm is made, by gained nano-particle in 30 parts by weight in each 1h Mass fraction is 30 min of ultrasonic disperse in 95% ethyl alcohol, is added with stirring the ammonium hydroxide of 1 parts by weight 26%, adds 0.5 every 30 min Parts by weight tetramethoxy-silicane, added tetramethoxy-silicane total amount are 6 parts by weight, and overall reaction centrifuges after 12 hours, 65 DEG C Lower vacuum drying 12h obtains SiO2- Au nano-particles.
Advantageous effect：The present invention is using polyurethanes as matrix, fine SiO2Aeroge is thermal resistance filler, in compound mistake Fine SiO in journey2Aeroge generates crosslinking, fine SiO with framework material2The stress that aeroge is subject to can be by the branch of composite material Skeleton structure is supportted to bear, the mechanical property of polyurethane material aeroge is made to be much better than common fine SiO2Airsetting Glue；In addition, introducing SiO in preparation process2- Au nano-particles can effectively change the viscosity index (VI) of liquid, improve filler in liquid Suspension and dispersibility in system, and improve coating corrosion resistance, water-resistance etc..Pass through polyurethanes, fine SiO2Gas Gel, SiO2The Material claddings such as-Au nano-particles act synergistically, and obtain the excellent novel heat insulation material of heat-proof quality, heat conduction system Number is only 0.046W/（m·K）.
Specific implementation mode
Embodiment 1
1）Weigh the fine SiO of 66 parts by weight2Aeroge is positioned over 4h in 120 DEG C of baking ovens, removes the moisture adsorbed in aeroge, It is spare；33 parts by weight polyurethanes are weighed, are taken out after being preheated at 60 DEG C, it will be by the fine SiO of drying and processing2Aeroge Thermal insulating filling is added than design in preheated polyurethanes by formulation weight, with the rotating speed magnetic agitation of 200rmp 30min；3.65 parts by weight diaminodiphenylmethane accurately are weighed in beaker, and the phthalic acid two of 10.95 parts by weight is added Butyl ester obtains mixed solution after being ultrasonically treated 15min, and mixed solution addition has been mixed into SiO2Aerogel heat-proof filler gathers In carbamate, the SiO of 0.05 parts by weight dimethicone and 2.94 parts by weight is added2- Au nano-particles continue after mixing Stirring, is continually fed into the nitrogen of 30min high-purities, colorless gum liquid is obtained after mixing；
2）The methyl vinyl silicone rubber for weighing 40 parts by weight is sufficiently mixed uniformly with above-mentioned colloidal liquid, by 25 parts by weight Expended microsphere is added in silicon rubber, after stirring evenly, is evacuated 15min with vacuum pump, is cast in a mold, be placed in 60 In DEG C baking oven, after its solidification, oven temperature is then increased to 70 DEG C of temperature, continues to take out after drying 15min, is cooled to room Temperature obtains heat-barrier material.
The SiO2- Au nano-particle preparation methods are as follows：
After taking 16 parts by weight high purity waters to be heated to 100 DEG C, the 3- aminopropyl front threes of a concentration of 0.001mol/l of 16 parts by weight are added Oxysilane solution continues to be heated to 100 DEG C, and 10 parts by weight mass fractions are added while stirring for 1% sodium citrate, at 100 DEG C Heat preservation 30min recession goes heat source, cooled to room temperature to obtain red mixed solution, takes the above-mentioned red of 10 parts by weight at room temperature Solution is added to 2 parts by weight a concentration of 1.2 × 10 just prepared-4The 3-mercaptopropyi trimethoxy silane ethanol solution of mol/l In, after 60rmp low speed magnetic agitations 1h, it is passed through carbon dioxide gas 30min, continues plus 2 parts by weight mass fractions is 0.02% Sodium silicate solution, 6h is stood after magnetic agitation 5min, and 30 min of ultrasonic disperse places 24 h, 3 are centrifuged under the conditions of 5000rpm Secondary, the core-shell nano that silica shell thickness is about 2~4nm is made, by gained nano-particle in 30 parts by weight in each 1h Mass fraction is 30 min of ultrasonic disperse in 95% ethyl alcohol, is added with stirring the ammonium hydroxide of 1 parts by weight 26%, adds 0.5 every 30 min Parts by weight tetramethoxy-silicane, added tetramethoxy-silicane total amount are 6 parts by weight, and overall reaction centrifuges after 12 hours, 65 DEG C Lower vacuum drying 12h obtains SiO2- Au nano-particles.
Embodiment 2
Identical with embodiment 1, difference is：The fine SiO of 56 parts by weight is added2Aeroge, 28 parts by weight polyurethane Ester and 2.34 parts by weight SiO2- Au nano-particles.
Embodiment 3
Identical with embodiment 1, difference is：The fine SiO of 30 parts by weight is added2Aeroge, 30 parts by weight polyurethane Ester and 2.54 parts by weight SiO2- Au nano-particles.
Embodiment 4
Identical with embodiment 1, difference is：The fine SiO of 50 parts by weight is added2Aeroge, 30 parts by weight polyurethane Ester and 2.64 parts by weight SiO2- Au nano-particles.
Embodiment 5
Identical with embodiment 1, difference is：The fine SiO of 50 parts by weight is added2Aeroge, 20 parts by weight polyurethane Ester and 2.74 parts by weight SiO2- Au nano-particles.
Embodiment 6
Identical with embodiment 1, difference is：The fine SiO of 64 parts by weight is added2Aeroge, 12 parts by weight polyurethane Ester and 2.84 parts by weight SiO2- Au nano-particles.
Embodiment 7
Identical with embodiment 1, difference is：The fine SiO of 20 parts by weight is added2Aeroge, 34 parts by weight polyurethane Ester and 3.04 parts by weight SiO2- Au nano-particles.
Embodiment 8
Identical with embodiment 1, difference is：The fine SiO of 70 parts by weight is added2Aeroge, 35 parts by weight polyurethane Ester and 3.14 parts by weight SiO2- Au nano-particles.
Embodiment 9
Identical with embodiment 1, difference is：The fine SiO of 72 parts by weight is added2Aeroge, 30 parts by weight polyurethane Ester and 3.24 parts by weight SiO2- Au nano-particles.
Comparative example 1
Identical with embodiment 1, difference is：It is added without SiO when preparing novel heat insulation material2- Au nano-particles.
Comparative example 2
Identical with embodiment 1, difference is：Prepare SiO2It is added without sodium citrate when-Au nano-particles.
Comparative example 3
Identical with embodiment 1, difference is：Prepare SiO2With N, N- diethyl -3- aminopropyl front threes when-Au nano-particles Oxysilane replaces 3- aminopropyl trimethoxysilanes.
Comparative example 4
Identical with embodiment 1, difference is：Prepare SiO2The 3- methyl-props of same molar ratio when-Au nano-particles Alkene acryloxypropylethoxysilane trimethoxy silane ethanol solution replaces 3-mercaptopropyi trimethoxy silane ethanol solution.
Comparative example 5
Identical with embodiment 1, difference is：Prepare SiO2It is added without ammonium hydroxide when-Au nano-particles.
Comparative example 6
Identical with embodiment 1, difference is：Change polyurethanes and fine SiO2Aeroge formulation weight ratio is 1: 4, the fine SiO of 56 parts by weight is added2Aeroge, 14 parts by weight polyurethanes.
Comparative example 7
Identical with embodiment 1, difference is：Prepare the diaminodiphenylmethane being added when novel heat insulation material and adjacent benzene two Formic acid dibutyl ester is 3.65 parts by weight.
Comparative example 8
Identical with embodiment 1, difference is：It is added without dimethicone when preparing novel heat insulation material.
Comparative example 9
Identical with embodiment 1, difference is：It is added without expended microsphere when preparing novel heat insulation material.
The novel heat insulation material prepared as follows to the embodiment of the present invention 1~9 and comparative example 1~9 carries out performance survey Examination：
TC3100 type thermal conductivity factor instrument testing example is used using thermal transient wire testing method according to GB/T 11205-2009 1~9 heat-barrier material thermal coefficient prepared with comparative example 1~9.Sample is made to the sample of 120mm × 60mm × 6mm, with Primary velocity test is tested every 3min 10 times, prepares 3 groups of samples, and every group of 2, sample takes the average value of test as the sample Test data.Novel heat insulation material performance test
By embodiment 1 ~ 9 it can be found that when in the present proportioning environment of embodiment 1, novel heat insulation material heat conduction obtained system Minimum, the only 0.011W/ of number（m·K）, but embodiment 2 ~ 9 prepare novel heat insulation material heat insulation be not it is especially desirable, Its thermal coefficient is in 0.1W/（m·K）More than, it is seen that the proportioning of embodiment 1 produces unexpected heat insulation, explanation Under the weight ratio, fine SiO2Aeroge, polyurethanes and SiO2- Au nano-particles synergistic effect is preferable, preparation every The bubble swept along in hot material is small and fine and close, most apparent to the heat-proof quality enhancing effect of heat-barrier material, when more than this addition When amount, due to fine SiO2The agglomeration of aeroge is serious, and sample is sticky, and mixing is difficult, the bubble swept along in heat-barrier material Amount is reduced or bubble diameter becomes larger, and the thermal coefficient of composite material is caused to rise.In addition comparative example 1 ~ 5 illustrates SiO2- Au nanometers The addition of particle is affected to heat-barrier material performance, and comparative example 6 ~ 9 illustrates the selection pair for preparing heat-barrier material raw material and condition Its heat insulation has prominent influence.

Claims (5)

1. a kind of preparation method of novel heat insulation material, it is characterised in that this approach includes the following steps：
1）Weigh the fine SiO of 56~72 parts by weight2Aeroge is positioned over 4h in 120 DEG C of baking ovens, removes the water adsorbed in aeroge Point, it is spare；28~36 parts by weight polyurethanes are weighed, are taken out after being preheated at 60 DEG C, it will be by the fine of drying and processing SiO2Aerogel heat-proof filler is added than design in preheated polyurethanes by formulation weight, with the rotating speed magnetic of 200rmp Power stirs 30min；3.65 parts by weight diaminodiphenylmethane accurately are weighed in beaker, and the adjacent benzene two of 10.95 parts by weight is added Formic acid dibutyl ester obtains mixed solution after being ultrasonically treated 15min, and mixed solution addition has been mixed into SiO2Aerogel heat-proof is filled out In the polyurethanes of material, the SiO of 0.05 parts by weight dimethicone and 2.34~3.24 parts by weight is added2- Au nanoparticles Son continues to stir after mixing, is continually fed into the nitrogen of 30min high-purities, colorless gum liquid is obtained after mixing；
2）The methyl vinyl silicone rubber for weighing 40 parts by weight is sufficiently mixed uniformly with above-mentioned colloidal liquid, by 25 parts by weight Expended microsphere is added in silicon rubber, after stirring evenly, is evacuated 15min with vacuum pump, is cast in a mold, be placed in 60 In DEG C baking oven, after its solidification, oven temperature is then increased to 70 DEG C of temperature, continues to take out after drying 15min, is cooled to room Temperature obtains heat-barrier material.
2. a kind of preparation method of novel heat insulation material according to claim 1, it is characterised in that step 1）The middle poly- ammonia of formula Carbamate and fine SiO2Aeroge weight ratio is 1:2.
3. a kind of preparation method of novel heat insulation material according to claim 1, it is characterised in that step 1）Middle supersound process Power is 480W.
4. a kind of preparation method of novel heat insulation material according to claim 1, it is characterised in that step 1）Middle antifoaming agent makes It it is 25 DEG C with temperature, the viscosity of antifoaming agent is 100~150mPas.
5. a kind of preparation method of novel heat insulation material according to claim 1, it is characterised in that step 1）Middle SiO2- Au receives The preparation method of rice corpuscles is：
After taking 16 parts by weight high purity waters to be heated to 100 DEG C, the 3- aminopropyl front threes of a concentration of 0.001mol/l of 16 parts by weight are added Oxysilane solution continues to be heated to 100 DEG C, and 10 parts by weight mass fractions are added while stirring for 1% sodium citrate, at 100 DEG C Heat preservation 30min recession goes heat source, cooled to room temperature to obtain red mixed solution, takes the above-mentioned red of 10 parts by weight at room temperature Solution is added to 2 parts by weight a concentration of 1.2 × 10 just prepared-4The 3-mercaptopropyi trimethoxy silane ethanol solution of mol/l In, after 60rmp low speed magnetic agitations 1h, it is passed through carbon dioxide gas 30min, continues plus 2 parts by weight mass fractions is 0.02% Sodium silicate solution, 6h is stood after magnetic agitation 5min, and 30 min of ultrasonic disperse places 24 h, 3 are centrifuged under the conditions of 5000rpm Secondary, the core-shell nano that silica shell thickness is about 2~4nm is made, by gained nano-particle in 30 parts by weight in each 1h Mass fraction is 30 min of ultrasonic disperse in 95% ethyl alcohol, is added with stirring the ammonium hydroxide of 1 parts by weight 26%, adds 0.5 every 30 min Parts by weight tetramethoxy-silicane, added tetramethoxy-silicane total amount are 6 parts by weight, and overall reaction centrifuges after 12 hours, 65 DEG C Lower vacuum drying 12h obtains SiO2- Au nano-particles.
CN201810561142.3A 2018-06-04 2018-06-04 A kind of preparation method of novel heat insulation material Pending CN108641592A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109721762A (en) * 2018-12-17 2019-05-07 航天材料及工艺研究所 A kind of anti-heat-insulation composite material of resin base ablation and preparation method thereof
CN111635247A (en) * 2020-05-07 2020-09-08 杨思国 Preparation method of porous heat-insulating material with high closed porosity
CN116218190A (en) * 2022-12-15 2023-06-06 温州东润新材料科技有限公司 Heat-insulating yellowing-resistant TPU film for vehicle windows and preparation method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109721762A (en) * 2018-12-17 2019-05-07 航天材料及工艺研究所 A kind of anti-heat-insulation composite material of resin base ablation and preparation method thereof
CN109721762B (en) * 2018-12-17 2022-06-03 航天材料及工艺研究所 Resin-based ablation heat-insulation-prevention composite material and preparation method thereof
CN111635247A (en) * 2020-05-07 2020-09-08 杨思国 Preparation method of porous heat-insulating material with high closed porosity
CN116218190A (en) * 2022-12-15 2023-06-06 温州东润新材料科技有限公司 Heat-insulating yellowing-resistant TPU film for vehicle windows and preparation method thereof

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