CN108298920A - Heat-barrier material composition, insulation ring and preparation method thereof and cooking appliance - Google Patents
Heat-barrier material composition, insulation ring and preparation method thereof and cooking appliance Download PDFInfo
- Publication number
- CN108298920A CN108298920A CN201810323959.7A CN201810323959A CN108298920A CN 108298920 A CN108298920 A CN 108298920A CN 201810323959 A CN201810323959 A CN 201810323959A CN 108298920 A CN108298920 A CN 108298920A
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- Prior art keywords
- heat
- material composition
- barrier material
- insulation ring
- cement
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/002—Construction of cooking-vessels; Methods or processes of manufacturing specially adapted for cooking-vessels
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/02—Selection of specific materials, e.g. heavy bottoms with copper inlay or with insulating inlay
- A47J36/04—Selection of specific materials, e.g. heavy bottoms with copper inlay or with insulating inlay the materials being non-metallic
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Food Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention disclose a kind of heat-barrier material composition, a kind of preparation method of insulation ring, insulation ring and the application insulation ring made from the preparation method by the insulation ring cooking appliance, wherein, by weight percentage, the heat-barrier material composition includes fumed silica, and 20% 50%；Silicate mineral, 5% 40%；Cement, 5% 30%.The insulation ring of technical scheme of the present invention has the advantages that thermal insulation effect and intensity are preferable.
Description
Technical field
The present invention relates to heat-barrier material technical field, more particularly to a kind of heat-barrier material composition, a kind of system of insulation ring
The cooking appliance of insulation ring made from Preparation Method, the preparation method by the insulation ring and the application insulation ring.
Background technology
It, generally can be in bottom case namely heat-generating disc in order to reduce influence of the heat-generating disc to bottom case of electric ceramic heaters high temperature
Insulation ring is arranged in circumferential edges, wherein insulation ring is typically to be passed through the methods of to be stirred, suppress, toast by a variety of refractory materials
What machine-shaping obtained, however, in the preparation of insulation ring, often because the selection of raw material is improper or use is formulated
Ratio it is improper, cause the insulation ring thermal insulation effect prepared poor, and insulation ring intensity deficiency easy fracture, to influence
Its service life.
Invention content
The main object of the present invention is to provide a kind of heat-barrier material composition, it is intended to can prepare thermal insulation effect and strong
Spend preferable insulation ring.
To achieve the above object, heat-barrier material composition proposed by the present invention includes vapor phase method two by weight percentage
Silica, 20%-50%；Silicate mineral, 5%-40%；Cement, 5%-30%.
Optionally, the specific surface area of the fumed silica is in 150-200m2Between/g.
Optionally, the cement is portland cement.
Optionally, by weight percentage, the heat-barrier material composition further includes silicon carbide 10%- 40%；And/or
The heat-barrier material composition further includes aluminium silicate powder 10%-50%；And/or the heat-barrier material composition further includes hydrogen-oxygen
Change calcium 3%-20%；And/or the heat-barrier material composition further includes adjuvant water 10%-40%.
Optionally, by weight percentage, the heat-barrier material composition further includes inorfil 4%- 40%.
Optionally, the inorfil is at least one of high silica fiber and glass fibre.
The invention also provides a kind of preparation methods of insulation ring, and the preparation method comprises the following steps：It provides as above
The heat-barrier material composition；The fumed silica, the silicate mineral and the cement are mixed, is obtained
Mixed powder；Die casting processing is carried out to the mixed powder, obtains the insulation ring.
Optionally, further include to the vapor phase method when mixing fumed silica, silicate mineral and cement
The step of auxiliary agent is added in silica, silicate mineral and cement, to obtain the mixing sub-material, wherein described to help
Agent is at least one of the silicon carbide, the aluminium silicate powder, the calcium hydroxide and described inorfil.
The invention also provides a kind of insulation ring, the insulation ring is obtained by above-mentioned preparation method.
The invention also provides a kind of cooking appliance, the cooking appliance includes heat-generating disc and insulation ring as described above,
The heat-insulated corral is set to the neighboring of the heat-generating disc.
Technical scheme of the present invention, by using the heat-insulated material of fumed silica, silicate mineral and cement
Feed composition prepares insulation ring according to a certain percentage, since the thermal conductivity of fumed silica and vermiculite is smaller, has
There is preferable heat insulation, therefore the insulation ring that thus prepared by heat-barrier material composition has preferable thermal insulation effect, so as to
Save electric energy；In addition, cement has preferable intensity, then the insulation ring intensity prepared preferable.
Specific implementation mode
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described reality
A part of the embodiment that example is only the present invention is applied, instead of all the embodiments.Based on the embodiments of the present invention, ability
The every other embodiment that domain those of ordinary skill is obtained without creative efforts, belongs to the present invention
The range of protection.
In addition, the technical solution between each embodiment can be combined with each other, but must be with ordinary skill
Personnel can be implemented as basis, will be understood that this technology when the combination of technical solution appearance is conflicting or cannot achieve
The combination of scheme is not present, also not the present invention claims protection domain within.
The present invention proposes a kind of heat-barrier material composition, and by weight percentage, which includes：Gas
Phase method silica, 20%-50%；Silicate mineral, 5%-40%；Cement, 5%- 30%.
Fumed silica is a kind of transparent heat-insulated material of nanoporous, have high porosity, small average pore size,
Big specific surface area, low-density and lower thermal conductivity namely heat insulation are preferable；Silicate mineral is commonly called as vermiculite,
It is a kind of natural, inorganic, nontoxic minerals, and its thermal conductivity is relatively low, therefore there is stronger thermal and insulating performance；Vermiculite one
As be layer structure, can be used as skeleton, and its intensity is preferable, then it is preferable so that the insulation ring prepared has for vermiculite after being added
Intensity；The specification selection of vermiculite is appropriate, if too thin, the insulation ring intensity deficiency prepared can be made to be easy cracking, excellent
Selection of land, specification are generally 20-60 mesh；In addition, vermiculite is also with preferable dilatancy, therefore its usage amount will also fit
When if amount can make its expanded more and influence insulation ring intensity too much；Cement has preferable intensity, can make after addition
The insulation ring intensity of preparation is preferable.
Accordingly, it is to be understood that, technical scheme of the present invention, by using fumed silica, silicate mineral
The heat-barrier material composition of matter and cement, prepares insulation ring, due to fumed silica and vermiculite according to a certain percentage
Thermal conductivity it is smaller, all have preferable heat insulation, thus the insulation ring that thus prepared by heat-barrier material composition have it is preferable
Thermal insulation effect, so as to save electric energy；In addition, cement has preferable intensity, then the insulation ring intensity prepared preferable.
Preferably, the specific surface area of fumed silica is in 150-200m2Between/g.
Preferably, cement is portland cement.Portland cement not only has good intensity, also has preferable resistance to
It is high temperatures, it can further improve the heat resistance of insulation ring.
By weight percentage, heat-barrier material composition further includes silicon carbide 10%-40%；Silicon carbide is a kind of infrared
Opacifier has preferable thermal insulation performance, in addition, the insulation ring prepared after silicon carbide, which is added, also has preferable appearance.
Heat-barrier material composition further includes aluminium silicate powder 10%-50%；Aluminium silicate powder also has preferable thermal insulation heat resistance
Can, it can further improve the heat resistance of insulation ring.
Heat-barrier material composition further includes calcium hydroxide 3%-20%；Calcium hydroxide has preferable intensity, meeting after addition
Further enhance the intensity of insulation ring.
Heat-barrier material composition further includes adjuvant water 10%-40%.During preparing insulation ring, one can be added
Quantitative adjuvant water.
By weight percentage, heat-barrier material composition further includes inorfil 4%-40%.In order to increase insulation ring
Toughness generally can add a certain amount of inorfil in the heat-barrier material composition, so that insulation ring is not easy to crack, to
Further improve the intensity of insulation ring.It should be noted that the addition of inorfil can also reduce its hydroscopicity, but
The too many structure that can also influence insulation ring, therefore select appropriate.The hydroscopicity of the insulation ring prepared after the addition of inorfil compared with
It is small, so that the insulation ring meets the requirement of the proof voltage of safety, meanwhile, it need not also be done during its transportation anti-
Tide packaging, to reduce packing cost.
Preferably, inorfil is at least one of high silica fiber and glass fibre.High silica fiber is a kind of resistance to
High temperature inorganic fiber can not only further increase the thermal insulation effect of insulation ring after addition, moreover it is possible to the toughness of insulation ring is improved,
So that its is not easy to break.Glass fibre also has stronger heat resistance, and mechanical strength is higher, also can be further after addition
Improve the resistance to temp effect and intensity of insulation ring.Generally, due to which high silica fiber cost is higher, it is fine that high silica is often added
The mixture of peacekeeping glass fibre.
Preferably, the diameter range of high silica fiber and glass fibre is between 10-13 μm, and length is in 6-12mm
Between.
The present invention also proposes that a kind of preparation method of insulation ring, the preparation method include the following steps：
Heat-barrier material composition is provided, by weight percentage, which includes vapor phase method titanium dioxide
Silicon, 20%-50%；Silicate mineral, 5%-40%；Cement, 5%-30%；
Fumed silica, silicate mineral and cement are mixed, mixed powder is obtained；Mixed powder is pressed
Casting is handled, and obtains insulation ring.
Specifically, first, according to constant weight percentage weigh corresponding fumed silica, silicate mineral,
And cement；Then it is added into agitator tank successively, and is stirred 20-25 minutes under room temperature, keep its mixing abundant, with
To mixed powder；Finally, mixed powder is put into the specific mold of insulation ring, and uses the hydraulic press of 60T-100T ranges
Mixed powder is cast into insulation ring under the pressure limit of 25MPa-50MPa, the time range of 0.1s-2s.Since this is heat-insulated
There is material compositions preferable thermal insulation effect and larger intensity, the then insulation ring being prepared also to have preferable thermal insulation
Effect and larger intensity.
Preferably, further include to the vapor phase method dioxy when mixing fumed silica, silicate mineral and cement
The step of auxiliary agent is added in SiClx, silicate mineral and cement, to obtain the mixing sub-material, wherein auxiliary agent is carbonization
At least one of silicon, aluminium silicate powder, calcium hydroxide and inorfil.
Specifically, the auxiliary agent of corresponding amount is weighed according to constant weight percentage respectively, and is added to fills vapor phase method successively
It in the agitator tank of silica, silicate mineral and cement, and is stirred for being uniformly mixed and obtains mixed powder, and repeat
Subsequent step is to prepare insulation ring.The addition of auxiliary agent can further improve the thermal insulation effect and intensity of insulation ring, in addition, special
It is not the addition of inorfil, the hydroscopicity of insulation ring can be reduced, so that the insulation ring prepared meets the resistance to electricity of safety
Pressure request.
The present invention also proposes a kind of insulation ring, which obtained by above-mentioned preparation method.
The present invention also proposes a kind of cooking appliance, which includes heat-generating disc and insulation ring as described above, heat-insulated
Corral is set to the neighboring of heat-generating disc.The cooking appliance can be electric ceramic heaters, health-promotion kettle, electromagnetic oven etc..
Insulation ring of the present invention and preparation method thereof is specifically described below by way of specific embodiment.
Embodiment 1
Each raw material is formulated as follows by weight percentage：
Fumed silica, 43%；
Silicate mineral, 32%；
Cement, 25%.
In the present embodiment, the specific surface area of fumed silica is 200m2/g；A diameter of 12 μm of high silica fiber；
Length is 10mm, a diameter of 12 μm of glass fibre；Length is 10mm；Cement is portland cement.
Each raw material is added into agitator tank successively, and is stirred 20 minutes under room temperature, keeps its mixing abundant, is mixed
Close powder.It should be noted that in whipping process, adjuvant water 19% can be added.Then, mixed powder is put into heat-insulated
Enclose in specific mold, and using the hydraulic press of 60T in the pressure of 25MPa, 1s time by mixed powder die casting, you can
To insulation ring.
Embodiment 2
Each raw material is formulated as follows by weight percentage：
Fumed silica, 28%；
Silicate mineral, 22%；
Portland cement, 11%；
Silicon carbide, 15%；
Aluminium silicate powder, 14%；
Calcium hydroxide, 6%；
High silica fiber, 2%；
Glass fibre, 2%.
In the present embodiment, the specific surface area of fumed silica is 200m2/g；A diameter of 12 μm of high silica fiber；
Length is 10mm, a diameter of 12 μm of glass fibre；Length is 10mm.
Each raw material is added into agitator tank successively, and is stirred 20 minutes under room temperature, keeps its mixing abundant, is mixed
Close powder.It should be noted that in whipping process, adjuvant water 19% can be added.Then, mixed powder is put into heat-insulated
Enclose in specific mold, and using the hydraulic press of 60T in the pressure of 25MPa, 1s time by mixed powder die casting, you can
To insulation ring.
Embodiment 3
Each raw material is formulated as follows by weight percentage：
Fumed silica, 30%；
Silicate mineral, 24%；
Portland cement, 12%；
Silicon carbide, 14%；
Aluminium silicate powder, 10%；
Calcium hydroxide, 6%；
High silica fiber, 2%；
Glass fibre, 2%.
In the present embodiment, the specific surface area of fumed silica is 200m2/g；A diameter of 12 μm of high silica fiber；
Length is 10mm, a diameter of 12 μm of glass fibre；Length is 10mm.
Each raw material is added into agitator tank successively, and is stirred 20 minutes under room temperature, keeps its mixing abundant, is mixed
Close powder.It should be noted that in whipping process, adjuvant water 20% can be added.Then, mixed powder is put into heat-insulated
Enclose in specific mold, and using the hydraulic press of 60T in the pressure of 25MPa, 1s time by mixed powder die casting, you can
To insulation ring.
Embodiment 4
Each raw material is formulated as follows by weight percentage：
Fumed silica, 32%；
Silicate mineral, 27%；
Portland cement, 12%；
Silicon carbide, 13%；
Aluminium silicate powder, 6%；
Calcium hydroxide, 6%；
High silica fiber, 2%；
Glass fibre, 2%.
In the present embodiment, the specific surface area of fumed silica is 200m2/g；A diameter of 12 μm of high silica fiber；
Length is 10mm, a diameter of 12 μm of glass fibre；Length is 10mm.
Each raw material is added into agitator tank successively, and is stirred 20 minutes under room temperature, keeps its mixing abundant, is mixed
Close powder.It should be noted that in whipping process, adjuvant water 23% can be added.Then, mixed powder is put into heat-insulated
Enclose in specific mold, and using the hydraulic press of 60T in the pressure of 25MPa, 1s time by mixed powder die casting, you can
To insulation ring.
Embodiment 5
Each raw material is formulated as follows by weight percentage：
Fumed silica, 33%；
Silicate mineral, 26%；
Portland cement, 13%；
Silicon carbide, 9%；
Aluminium silicate powder, 5%；
Calcium hydroxide, 7%；
High silica fiber, 3%；
Glass fibre, 4%.
In the present embodiment, the specific surface area of fumed silica is 200m2/g；A diameter of 12 μm of high silica fiber；
Length is 10mm, a diameter of 12 μm of glass fibre；Length is 10mm.
Each raw material is added into agitator tank successively, and is stirred 20 minutes under room temperature, keeps its mixing abundant, is mixed
Close powder.It should be noted that in whipping process, adjuvant water 20% can be added.Then, mixed powder is put into heat-insulated
Enclose in specific mold, and using the hydraulic press of 60T in the pressure of 25MPa, 1s time by mixed powder die casting, you can
To insulation ring.
Furthermore, it is necessary to which explanation, installs to the bottom case of electric ceramic heaters the insulation ring that embodiment 1 to 4 is prepared
(neighboring of heat-generating disc) is tested for the property the electric ceramic heaters with being assembled into electric ceramic heaters.
First, thermal insulation test is carried out to the electric ceramic heaters, that is, after sixty minutes by electric ceramic heaters booting, test and record insulation ring
From the temperature value at inner ring 5mm.Secondly, hydroscopicity test is carried out, i.e., is weighed to the insulation ring after progress thermal insulation test, then
It is 25 DEG C to put it into temperature, in the climatic chamber that humidity is 93%, takes out after 48 hours and weighs again, and record it
Gain in weight data.Its test data is shown in Table 1.Similarly, thermal insulation test also is carried out to traditional insulation ring, by test it is found that
Traditional insulation ring is switched on after sixty minutes in electric ceramic heaters, and temperature is 193 DEG C；Hydroscopicity test is also carried out simultaneously, passes through survey
Examination is it is found that traditional insulation ring gain in weight is 12g.
It can be seen from Table 1 that in five kinds of embodiments, insulation ring of the present invention is switched on after sixty minutes in electric ceramic heaters, temperature
Low namely its thermal insulation raising with obvious effects than traditional (193 DEG C)；It is tested by hydroscopicity, in five kinds of embodiments, this
Low namely its hydroscopicity is substantially reduced the gain in weight of invention insulation ring than traditional (12g).Also, embodiment 1 to 5 is made
Standby obtained insulation ring appearance is good.
It should be understood that can be seen that by embodiment 1 to 5, by adjusting each component in heat-barrier material composition ratio and
Dosage can be prepared that thermal insulation effect is preferable and the lower insulation ring of hydroscopicity, that is, the thermal insulation of insulation ring prepared by the present invention
Effect is more preferable than the thermal insulation effect of traditional insulation ring, and hydroscopicity of the hydroscopicity also than traditional insulation ring is low, therefore,
The thermal insulation effect and safety performance of the insulation ring of the present invention are remarkably improved.
In addition, the ingredient of heat-barrier material composition of the present invention meets ROHS authentication requestings.Insulation ring of the present invention also have compared with
Big intensity, service life is also more traditional to be grown；The manufacturing cost of the insulation ring is relatively low simultaneously.
1 each embodiment insulation ring the performance test results table of table
The foregoing is merely the preferred embodiment of the present invention, are not intended to limit the scope of the invention, every at this
Under the inventive concept of invention, using equivalent structure transformation made by present specification, or directly/it is used in it indirectly
His relevant technical field is included in the scope of patent protection of the present invention.
Claims (10)
1. a kind of heat-barrier material composition, which is characterized in that by weight percentage, the heat-barrier material composition includes：
Fumed silica, 20%-50%；
Silicate mineral, 5%-40%；
Cement, 5%-30%.
2. heat-barrier material composition as described in claim 1, which is characterized in that the specific surface area of the fumed silica
In 150-200m2Between/g.
3. heat-barrier material composition as described in claim 1, which is characterized in that the cement is portland cement.
4. heat-barrier material composition as described in claim 1, which is characterized in that by weight percentage, the heat-barrier material
Composition further includes silicon carbide 10%-40%；And/or the heat-barrier material composition further includes aluminium silicate powder 10%-50%；
And/or the heat-barrier material composition further includes calcium hydroxide 3%-20%；And/or the heat-barrier material composition further includes
Adjuvant water 10%-40%.
5. heat-barrier material composition according to any one of claims 1 to 4, which is characterized in that by weight percentage, institute
It further includes inorfil 4%-40% to state heat-barrier material composition.
6. heat-barrier material composition as claimed in claim 5, which is characterized in that the inorfil is high silica fiber and glass
At least one of glass fiber.
7. a kind of preparation method of insulation ring, which is characterized in that the preparation method comprises the following steps：
Such as heat-barrier material composition according to any one of claims 1 to 6 is provided；
The fumed silica, the silicate mineral and the cement are mixed, mixed powder is obtained；
Die casting processing is carried out to the mixed powder, obtains the insulation ring.
8. the preparation method of insulation ring as claimed in claim 7, which is characterized in that the mixing fumed silica, silicon
Further include the addition auxiliary agent into the fumed silica, silicate mineral and cement when hydrochlorate minerals and cement
Step, to obtain the mixing sub-material, wherein the auxiliary agent be the silicon carbide, the aluminium silicate powder, the calcium hydroxide,
And at least one of described inorfil.
9. a kind of insulation ring, which is characterized in that the insulation ring is by the preparation method as described in any one of claim 7 to 8
It obtains.
10. a kind of cooking appliance, the cooking appliance includes heat-generating disc and insulation ring as claimed in claim 9, described heat-insulated
Corral is set to the neighboring of the heat-generating disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810323959.7A CN108298920A (en) | 2018-04-11 | 2018-04-11 | Heat-barrier material composition, insulation ring and preparation method thereof and cooking appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810323959.7A CN108298920A (en) | 2018-04-11 | 2018-04-11 | Heat-barrier material composition, insulation ring and preparation method thereof and cooking appliance |
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| Publication Number | Publication Date |
|---|---|
| CN108298920A true CN108298920A (en) | 2018-07-20 |
Family
ID=62847300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810323959.7A Pending CN108298920A (en) | 2018-04-11 | 2018-04-11 | Heat-barrier material composition, insulation ring and preparation method thereof and cooking appliance |
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Cited By (3)
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| CN112266215A (en) * | 2020-10-30 | 2021-01-26 | 深圳市鑫富达电器有限公司 | Heat insulation material composition, heat insulation ring, preparation method of heat insulation ring and cooking appliance |
| CN118405931A (en) * | 2024-07-04 | 2024-07-30 | 佛山市科菱斯科技有限公司 | Heat insulation material, preparation method and application thereof in heat insulation ring |
| CN118420331A (en) * | 2024-07-04 | 2024-08-02 | 佛山市科菱斯科技有限公司 | High-temperature-resistant heat insulation material composition, preparation method and heat insulation pad |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112266215A (en) * | 2020-10-30 | 2021-01-26 | 深圳市鑫富达电器有限公司 | Heat insulation material composition, heat insulation ring, preparation method of heat insulation ring and cooking appliance |
| CN118405931A (en) * | 2024-07-04 | 2024-07-30 | 佛山市科菱斯科技有限公司 | Heat insulation material, preparation method and application thereof in heat insulation ring |
| CN118420331A (en) * | 2024-07-04 | 2024-08-02 | 佛山市科菱斯科技有限公司 | High-temperature-resistant heat insulation material composition, preparation method and heat insulation pad |
| CN118405931B (en) * | 2024-07-04 | 2024-09-10 | 佛山市科菱斯科技有限公司 | Heat insulation material, preparation method and application thereof in heat insulation ring |
| CN118420331B (en) * | 2024-07-04 | 2024-09-20 | 佛山市科菱斯科技有限公司 | High-temperature-resistant heat insulation material composition, preparation method and heat insulation pad |
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Application publication date: 20180720 |