CN116556110A - High-temperature-resistant heat insulation paper for thermal battery and preparation method thereof - Google Patents
High-temperature-resistant heat insulation paper for thermal battery and preparation method thereof Download PDFInfo
- Publication number
- CN116556110A CN116556110A CN202310660237.1A CN202310660237A CN116556110A CN 116556110 A CN116556110 A CN 116556110A CN 202310660237 A CN202310660237 A CN 202310660237A CN 116556110 A CN116556110 A CN 116556110A
- Authority
- CN
- China
- Prior art keywords
- fibers
- water
- thermal battery
- fiber
- thermal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000009413 insulation Methods 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title claims abstract description 25
- 239000000835 fiber Substances 0.000 claims abstract description 88
- 239000010425 asbestos Substances 0.000 claims abstract description 19
- 229910052895 riebeckite Inorganic materials 0.000 claims abstract description 19
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000000853 adhesive Substances 0.000 claims abstract description 14
- 230000009467 reduction Effects 0.000 claims abstract description 14
- 239000002994 raw material Substances 0.000 claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 4
- 239000002557 mineral fiber Substances 0.000 claims abstract description 4
- 239000001038 titanium pigment Substances 0.000 claims abstract 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 58
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 41
- 239000002002 slurry Substances 0.000 claims description 36
- 238000010009 beating Methods 0.000 claims description 25
- 239000011268 mixed slurry Substances 0.000 claims description 18
- 230000001070 adhesive effect Effects 0.000 claims description 13
- 239000004408 titanium dioxide Substances 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 9
- 238000005086 pumping Methods 0.000 claims description 9
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 9
- 230000018044 dehydration Effects 0.000 claims description 3
- 238000006297 dehydration reaction Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 239000011707 mineral Substances 0.000 claims 1
- 239000004964 aerogel Substances 0.000 abstract description 8
- 239000000203 mixture Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 238000004537 pulping Methods 0.000 description 33
- 238000002156 mixing Methods 0.000 description 18
- 238000010304 firing Methods 0.000 description 10
- 235000010215 titanium dioxide Nutrition 0.000 description 10
- 238000005520 cutting process Methods 0.000 description 8
- 239000011810 insulating material Substances 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 6
- 238000004513 sizing Methods 0.000 description 6
- 239000012784 inorganic fiber Substances 0.000 description 5
- 239000002131 composite material Substances 0.000 description 4
- 239000012774 insulation material Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000011149 active material Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011256 inorganic filler Substances 0.000 description 2
- 229910003475 inorganic filler Inorganic materials 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000001994 activation Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 206010061592 cardiac fibrillation Diseases 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000002600 fibrillogenic effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000010416 ion conductor Substances 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000643 oven drying Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000007725 thermal activation Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/36—Inorganic fibres or flakes
- D21H13/38—Inorganic fibres or flakes siliceous
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/36—Inorganic fibres or flakes
- D21H13/38—Inorganic fibres or flakes siliceous
- D21H13/42—Asbestos
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/66—Salts, e.g. alums
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
- D21H17/675—Oxides, hydroxides or carbonates
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/50—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by form
- D21H21/52—Additives of definite length or shape
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Cell Separators (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses high-temperature-resistant heat-insulating paper for a thermal battery and a preparation method thereof, which belong to the technical field of special paper and manufacture thereof, wherein mineral fibers are used as raw materials, and the raw materials comprise the following components in parts by weight: 40-75 parts of asbestos fiber and 25-60 parts of aluminum silicate fiber, wherein the raw materials are pulped, then 1-15% of adhesive agent is added based on the total weight of the absolute dry fiber, then 5-10% of titanium pigment is added based on the total weight of the absolute dry fiber, the mixture is uniformly stirred, then the mixture is manufactured by adopting a wet papermaking process, and the mixture is molded by a cylinder former, dehydrated, squeezed, dried, cut and the like, so that the prepared thermal insulation paper has the characteristics of thin thickness, high strength, low burning reduction rate, good thermal insulation performance and the like, and the thermal insulation paper is matched with fiber reinforced aerogel materials with relatively low strength to be used in a thermal battery, so that the use requirements of a high-power and long-service life thermal battery can be met.
Description
Technical Field
The invention belongs to the technical field of special paper and manufacturing thereof, and particularly relates to high-temperature-resistant heat-insulating paper for a thermal battery and a preparation method thereof.
Background
The thermal battery is called as thermal activation reserve battery, belongs to irreversible disposable chemical power supply, has the advantages of large specific energy, high specific power, high activation speed, long storage life, compact structure, no need of maintenance and the like, and is an ideal power supply for modern weapons (missiles, nuclear weapons, artillery and the like). The working principle of the thermal battery is that a non-conductive solid salt electrolyte is heated and melted into an ionic conductor by using a heating system of the battery, and an ionic flow battery is formed between the anode and the cathode so as to start working discharge. For the thermal battery to work properly, it is necessary to maintain a certain temperature range. A certain heat insulating material is usually used around the battery stack body, so that heat loss is controlled, temperature drop is slowed down, a certain temperature of the thermal battery is maintained for a long time, and the service life of the thermal battery is prolonged.
The heat insulating material is a key heat insulating material used in the thermal battery, and the performance of the heat insulating material directly influences the discharge performance and the service life of the thermal battery. It is in direct contact with the solid active material in the battery inside, and therefore, it is required that the heat insulating material has good high temperature resistance (the operating temperature of the thermal battery is generally between 400 and 600 ℃) and that the heat insulating material does not chemically react with the active material in the battery, and secondly, it is required that the heat insulating material has good strength, meets the requirements of the assembly of the thermal battery, and it is required that the thickness of the heat insulating material for the thermal battery should be thin due to the limited space of the thermal battery.
Along with the continuous development of science and technology, the requirements of different application fields on the thermal battery are continuously improved (such as high power, small volume, long service life and the like), so that higher requirements on the thermal insulation material of the thermal battery are also provided. The aerogel heat insulation material has the advantages of large specific surface area, high porosity, uniform distribution of nano-pore structures, low heat conductivity coefficient and the like, but the aerogel heat insulation material has low strength and cannot be used independently at present; the strength of the inorganic fiber reinforced aerogel composite material is greatly improved compared with that of a pure aerogel material, but the strength use requirement of the thermal battery can not be met, and the inorganic fiber reinforced aerogel composite material can not meet the use requirement of the thermal battery unless the inorganic fiber reinforced aerogel composite material is matched with other inorganic fiber papers with high strength.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide the high-temperature-resistant heat-insulating paper for the thermal battery, which has the characteristics of thin thickness, high strength, low firing reduction rate, good heat insulation performance and the like, and the preparation method thereof, so that the inorganic fiber reinforced aerogel composite material is better combined into the thermal battery, and the use requirements of the high-power and long-service-life thermal battery are met.
The high-temperature-resistant heat insulation paper for the thermal battery is characterized by taking mineral fibers as raw materials, wherein the raw materials consist of the following components in parts by weight: 40-75 parts of asbestos fiber and 25-60 parts of aluminum silicate fiber, wherein the raw materials are pulped, then adhesive accounting for 1-15% of the total weight of absolute dry fiber is added, titanium white accounting for 5-10% of the total weight of absolute dry fiber is added, and the mixture is uniformly stirred and then manufactured by adopting a cylinder mould paper machine wet paper making process.
The high-temperature-resistant heat insulation paper for the thermal battery is characterized in that after the asbestos fiber is pulped, the pulping degree is 30-95 DEG SR, and the wet weight of the fiber is 2-20 g.
The high-temperature-resistant heat insulation paper for the thermal battery is characterized in that the thickness of the heat insulation paper is 0.45-0.55 mm, and the tightness is more than or equal to 0.7g/cm 3 The longitudinal tensile strength is more than or equal to 2.5kN/m, the transverse tensile strength is more than or equal to 1.0kN/m, the burning reduction rate (600 ℃ for 15 min) is less than or equal to 8.0%, and the heat conductivity coefficient is less than or equal to 0.050 w/m.k.
The high-temperature-resistant heat insulation paper for the thermal battery is characterized in that the adhesive is aluminum sol or silica sol.
The high-temperature-resistant heat insulation paper for the thermal battery is characterized in that the titanium dioxide is anatase titanium dioxide or rutile titanium dioxide.
The preparation method of the high-temperature-resistant heat insulation paper for the thermal battery is characterized by comprising the following steps of:
1) Putting 40-75 parts by weight of asbestos fibers into a beating machine with a proper amount of water, wherein the mass percentage concentration of the fibers in the water is 2-5%, fluffing for 20min by a light knife, and stopping beating when the beating degree and the wet weight of the fibers are regulated by the lower knife;
2) Putting 25-60 parts by weight of aluminum silicate fibers into a beating machine with a proper amount of water, beating for 3-5 min by a light knife, and stopping beating after the fibers are uniformly dispersed in the water, wherein the mass percentage concentration of the fibers in the water is 2-5%;
3) Placing the sizing agent in the step 1) and the step 2) into a sizing agent mixing pool, adding a proper amount of water to mix the sizing agent into the sizing agent to obtain sizing agent with the mass percentage concentration of 0.4-0.6%, adding an adhesive accounting for 1-15% of the total weight of absolute dry fibers, adding titanium dioxide accounting for 5-10% of the total weight of the absolute dry fibers, and uniformly stirring to form mixed sizing agent;
4) And (3) pumping the mixed slurry obtained in the step (3) into a cylinder mould, and preparing the high-temperature-resistant heat-insulating paper for the thermal battery through dehydration, moulding, squeezing, drying and slitting.
Further, the invention also defines that the adhesive is aluminum sol or silica sol.
Further, the invention also defines that the titanium dioxide is anatase titanium dioxide or rutile titanium dioxide.
By adopting the technology, compared with the prior art, the invention has the following beneficial effects:
1) The invention adopts asbestos fiber and aluminum silicate fiber as raw materials, the asbestos fiber has the characteristics of long fiber length, easy swelling in water, easy separation and fibrillation after pulping, good fiber interweaving performance after pulp dehydration and molding, and the like, the pulping treatment is carried out according to the limited beating degree and the wet weight of the fiber, the dry strength of the paper manufactured by the pulping treatment is higher, the using amount of adhesive can be reduced in production, the production cost is reduced, the paper can be normally used for a long time under the temperature condition of 500 ℃, and the heat insulation performance and the insulation performance are stable; the aluminum silicate fiber adopted by the invention has the characteristics of low heat conductivity coefficient, high temperature resistance, good heat stability and the like, and the temperature resistance can reach more than 1000 ℃, so that the heat insulation paper prepared by adopting the asbestos fiber and the aluminum silicate fiber with limited feeding ratio as raw materials has high heat resistance, low heat conductivity coefficient and good heat insulation performance;
2) The invention adopts inorganic adhesive aluminum sol or silica sol as adhesive for reinforcement, has the characteristics of good adsorption performance, good thermal stability, stable chemical property and the like, increases the temperature resistance of the heat insulation paper while improving the tensile strength of the heat insulation paper, has water solubility, and can be better dispersed uniformly in a slurry system;
3) The titanium dioxide is used as the filler, is a white inorganic filler, has good heat resistance and chemical stability, and the aperture of the heat insulation paper is reduced by adding the titanium dioxide, so that the heat resistance and the chemical stability of the heat insulation paper are improved to a certain extent;
4) The invention adopts inorganic mineral fiber as raw material, adopts inorganic adhesive for reinforcement, adds inorganic filler to prepare 100 percent of inorganic component heat insulation paper, improves the tensile strength and high temperature resistance, reduces the firing reduction rate of the heat insulation paper at high temperature, can better meet the requirement of thermal battery on the heat insulation material temperature resistance, and the thickness of the obtained heat insulation paper is 0.45-0.55 mm, and the tightness is more than or equal to 0.7g/cm 3 The longitudinal tensile strength is more than or equal to 2.5kN/m, the transverse tensile strength is more than or equal to 1.0kN/m, the burning reduction rate (600 ℃ for 15 min) is less than or equal to 8.0%, and the heat conductivity coefficient is less than or equal to 0.050 w/m.k.
Detailed Description
The invention will be further illustrated with reference to specific examples, but the scope of the invention is not limited thereto.
Example 1
1) 70kg of asbestos fibers are put into a pulping machine which stores 3430kg of water, the mass percentage concentration of the fibers in the water is 2%, a light knife is firstly used for fluffing for 20min, then the light knife is used for pulping until the pulp beating degree is 30 DEG SR, the wet weight of the fibers is 20g, and then the pulp is put into a pulp mixing tank by a knife;
2) Putting 30kg of aluminum silicate fibers into a pulping machine with 720kg of water, pulping for 3-5 min by a light knife, stopping pulping after the fibers are uniformly dispersed in the water, and putting the pulp into a pulp mixing tank;
3) Adding 20750kg of water into a slurry preparation tank to prepare slurry with the mass concentration of 0.4%, adding 10kg of aluminum sol into the slurry preparation tank, adding 6kg of anatase titanium dioxide, and uniformly stirring to form mixed slurry;
4) Pumping the mixed slurry into a cylinder former, and dehydrating, forming, squeezing, drying and cutting to obtain high-temperature-resistant heat-insulating paper for thermal batteries, wherein the thickness of the heat-insulating paper is 0.51mm, and the tightness is 0.76g/cm 3 The longitudinal tensile strength is 3.44kN/m, the transverse tensile strength is 1.53kN/m, the firing reduction (600 ℃ C., 15 min) is 6.6%, and the thermal conductivity is 0.041 w/m.k.
Example 2
1) 60kg of asbestos fiber is put into a beater with 1440kg of water, the mass percentage concentration of the fiber in the water is 4%, the fiber is first fluffed for 20min by a light knife, then beaten by the knife until the beating degree of the slurry is 95 DEG SR, the wet weight of the fiber is 2g, and then the slurry is put into a slurry mixing tank by a knife.
2) 40kg of aluminum silicate fiber is put into a pulping machine which stores 960kg of water, the mass percentage concentration of the fiber in the water is 4%, a light knife pulps for 3-5 min, the pulping is stopped after the fiber is uniformly dispersed in the water, and the pulp is put into a pulp mixing tank.
3) Adding 17500kg of water into a slurry preparation tank to prepare slurry with the mass concentration of 0.5%, adding 8kg of silica sol into the slurry preparation tank, adding 10kg of anatase titanium dioxide, and uniformly stirring to form mixed slurry.
4) Mixing the slurryPumping into a cylinder former, dehydrating, forming, squeezing, oven drying, and cutting to obtain high temperature resistant heat insulating paper for thermal battery, wherein the thickness of the heat insulating paper is 0.48mm, and the tightness is 0.75g/cm 3 The longitudinal tensile strength was 3.26kN/m, the transverse tensile strength was 1.48kN/m, the firing reduction (600 ℃ C., 15 min) was 6.8%, and the thermal conductivity was 0.042 w/mK.
Example 3
1) 55kg of asbestos fibers are put into a pulping machine with 1045kg of water, the mass percentage concentration of the fibers in the water is 5%, the fibers are first fluffed for 20min by a light knife, then pulped by the knife until the pulp beating degree is 40 DEG SR, the wet weight of the fibers is 15g, and then the pulp is put into a pulp mixing tank by a knife.
2) 45kg of aluminum silicate fibers are put into a pulping machine with 1455kg of water, the mass percentage concentration of the fibers in the water is 3%, a light knife pulps for 3-5 min, the pulping is stopped after the fibers are uniformly dispersed in the water, and the pulp is put into a pulp mixing tank.
3) 22400kg of water is added into a slurry preparation tank to prepare slurry with the mass concentration of 0.4%, 15kg of aluminum sol is added into the slurry preparation tank, and then 5kg of rutile type titanium dioxide is added into the slurry preparation tank to form mixed slurry after uniform stirring.
4) Pumping the mixed slurry into a cylinder former, and dehydrating, forming, squeezing, drying and cutting to obtain high-temperature-resistant heat-insulating paper for thermal batteries, wherein the thickness of the heat-insulating paper is 0.55mm, and the tightness is 0.78g/cm 3 The longitudinal tensile strength was 3.90kN/m, the transverse tensile strength was 1.97kN/m, the firing reduction (600 ℃ C., 15 min) was 6.5%, and the thermal conductivity was 0.043 w/mK.
Example 4
1) 40kg of asbestos fiber is put into a beater with 1960kg of water, the mass percentage concentration of the fiber in the water is 2%, the fiber is first fluffed for 20min by a light cutter, then beaten by the cutter until the beating degree of the slurry is 50 DEG SR, the wet weight of the fiber is 12g, and then the slurry is put into a slurry mixing tank by a cutter.
2) 60kg of aluminum silicate fibers are put into a pulping machine which stores 1940kg of water, the mass percentage concentration of the fibers in the water is 3%, a light knife pulps for 3-5 min, after the fibers are uniformly dispersed in the water, the pulping is stopped, and the pulp is put into a pulp mixing tank.
3) Adding 12666kg of water into a slurry preparation tank until the mass concentration of the slurry is 0.6%, adding 12kg of silica sol into the slurry preparation tank, adding 7kg of rutile type titanium dioxide, and uniformly stirring to form mixed slurry.
4) Pumping the mixed slurry into a cylinder former, and dehydrating, forming, squeezing, drying and cutting to obtain high-temperature-resistant heat-insulating paper for thermal batteries, wherein the thickness of the heat-insulating paper is 0.46mm, and the tightness is 0.76g/cm 3 The longitudinal tensile strength was 3.63kN/m, the transverse tensile strength was 1.82kN/m, the firing reduction (600 ℃ C., 15 min) was 6.2%, and the thermal conductivity was 0.046 w/mK.
Example 5
1) 50kg of asbestos fibers are put into a beating machine which stores 950kg of water, the mass percentage concentration of the fibers in the water is 5%, a light knife is firstly used for fluffing for 20min, then the light knife is used for beating until the beating degree of the pulp is 70 DEG SR, the wet weight of the fibers is 8.7g, and then the pulp is put into a pulp mixing tank by lifting the knife.
2) 50kg of aluminum silicate fiber is put into a pulping machine which stores 950kg of water, the mass percentage concentration of the fiber in the water is 5%, a light knife pulps for 3-5 min, the pulping is stopped after the fiber is uniformly dispersed in the water, and the pulp is put into a pulp mixing pool.
3) 18000kg of water is added into a slurry preparation tank to prepare slurry with the mass concentration of 0.5%, 1kg of aluminum sol is added into the slurry preparation tank, and 9kg of anatase titanium dioxide is added into the slurry preparation tank to uniformly stir to form mixed slurry.
4) Pumping the mixed slurry into a cylinder former, and dehydrating, forming, squeezing, drying and cutting to obtain high-temperature-resistant heat-insulating paper for thermal batteries, wherein the thickness of the heat-insulating paper is 0.48mm, and the tightness is 0.75g/cm 3 The longitudinal tensile strength was 2.65kN/m, the transverse tensile strength was 1.04kN/m, the firing reduction (600 ℃ C., 15 min) was 6.5%, and the thermal conductivity was 0.044 w/mK.
Example 6
1) Putting 75kg of asbestos fibers into a pulping machine with 2425kg of water, wherein the mass percentage concentration of the fibers in the water is 3%, first fluffing for 20min by a light knife, then pulping by the knife until the pulp beating degree is 60 DEG SR, and then putting the pulp into a pulp mixing tank by a knife;
2) Putting 25kg of aluminum silicate fibers into a pulping machine with 475kg of water, pulping for 3-5 min by a light knife, stopping pulping after the fibers are uniformly dispersed in the water, and putting the pulp into a pulp mixing tank;
3) Adding 17000kg of water into a slurry preparation tank to prepare slurry with the mass concentration of 0.5%, adding 5kg of silica sol into the slurry preparation tank, adding 7kg of anatase titanium dioxide, and uniformly stirring to form mixed slurry;
4) Pumping the mixed slurry into a cylinder former, dehydrating, forming, squeezing, drying and cutting to obtain high-temperature-resistant heat-insulating paper for thermal batteries, wherein the thickness of the heat-insulating paper is 0.54mm, and the tightness is 0.77g/cm 3 The longitudinal tensile strength was 3.07kN/m, the transverse tensile strength was 1.35kN/m, the firing reduction (600 ℃ C., 15 min) was 6.3%, and the thermal conductivity was 0.040 w/m.k.
Example 7
1) Putting 64kg of asbestos fibers into a pulping machine with 1536kg of water, wherein the mass percentage concentration of the fibers in the water is 4%, first fluffing for 20min by a light knife, then pulping by the light knife until the pulp beating degree is 75 DEG SR, and then putting the pulp into a pulp mixing tank by a knife until the wet weight of the fibers is 8 g;
2) Putting 36kg of aluminum silicate fibers into a pulping machine with 1764kg of water, pulping for 3-5 min by a light knife, stopping pulping after the fibers are uniformly dispersed in the water, and putting the pulp into a pulp mixing tank;
3) Adding 21600kg of water into a slurry preparation tank to prepare slurry with the mass concentration of 0.4%, adding 7kg of aluminum sol into the slurry preparation tank, adding 9kg of rutile type titanium dioxide, and uniformly stirring to form mixed slurry;
4) Pumping the mixed slurry into a cylinder former, and dehydrating, forming, squeezing, drying and cutting to obtain high-temperature-resistant heat-insulating paper for thermal batteries, wherein the thickness of the heat-insulating paper is 0.51mm, and the tightness is 0.79g/cm 3 The longitudinal tensile strength was 3.20kN/m, the transverse tensile strength was 1.46kN/m, the firing reduction (600 ℃ C., 15 min) was 6.2%, and the thermal conductivity was 0.045 w/mK.
Example 8
1) Putting 44kg of asbestos fibers into a pulping machine with 2156kg of water, wherein the mass percentage concentration of the fibers in the water is 2%, fluffing for 20min by a light knife, pulping until the pulp beating degree is 85 DEG SR, and putting the pulp into a pulp mixing tank by a knife;
2) Putting 56kg of aluminum silicate fibers into a pulping machine with 1344kg of water, pulping for 3-5 min by a light knife, stopping pulping after the fibers are uniformly dispersed in the water, and putting the pulp into a pulp mixing tank;
3) Adding 16400kg of water into a slurry preparation tank to prepare slurry with the mass concentration of 0.5%, adding 14kg of silica sol into the slurry preparation tank, adding 6kg of rutile type titanium dioxide, and uniformly stirring to form mixed slurry;
4) Pumping the mixed slurry into a cylinder former, and dehydrating, forming, squeezing, drying and cutting to obtain high-temperature-resistant heat-insulating paper for thermal batteries, wherein the thickness of the heat-insulating paper is 0.53mm, and the tightness is 0.77g/cm 3 The longitudinal tensile strength is 3.82kN/m, the transverse tensile strength is 1.89kN/m, the firing reduction (600 ℃ C., 15 min) is 6.1%, and the heat conductivity is 0.041 w/m.k.
The invention has been described in terms of embodiments, and several designs and modifications can be made to this solution without departing from this solution. It should be noted that all technical solutions obtained by means of equivalent substitution or equivalent design fall within the protection scope of the present invention.
Claims (8)
1. The high-temperature-resistant heat insulation paper for the thermal battery is characterized by taking two mineral fibers of asbestos fibers and aluminum silicate fibers as main raw materials, wherein the raw materials specifically comprise the following components in parts by weight: 40-75 parts of asbestos fiber, 25-60 parts of aluminum silicate fiber, an adhesive accounting for 1-15% of the total weight of the absolute dry fiber and titanium dioxide accounting for 5-10% of the total weight of the absolute dry fiber, wherein the adhesive and the titanium dioxide are added after the mineral raw materials are pulped.
2. The high-temperature resistant thermal insulation paper for thermal batteries according to claim 1,it is characterized in that the thickness of the heat insulation paper is 0.45-0.55 mm, and the tightness is more than or equal to 0.7g/cm 3 The longitudinal tensile strength is more than or equal to 2.5kN/m, the transverse tensile strength is more than or equal to 1.0kN/m, the burning reduction rate (600 ℃ for 15 min) is less than or equal to 8.0%, and the heat conductivity coefficient is less than or equal to 0.050 w/m.k.
3. The high temperature resistant insulating paper for thermal battery according to claim 1, wherein the asbestos fiber has a beating degree of 30-95 DEG SR and a wet weight of 2-20 g after beating.
4. The high temperature resistant insulating paper for thermal battery according to claim 1, wherein the adhesive is aluminum sol or silica sol.
5. The high temperature resistant insulating paper for thermal battery according to claim 1, wherein the titanium pigment is anatase titanium pigment or rutile titanium pigment.
6. A method for producing the high temperature resistant thermal insulation paper for thermal batteries according to any one of claims 1 to 5, characterized by comprising the steps of:
1) Putting 40-75 parts by weight of asbestos fibers into a beating machine with a proper amount of water, wherein the mass percentage concentration of the fibers in the water is 2-5%, fluffing for 20min by a light knife, and stopping beating when the beating degree and the wet weight of the fibers are regulated by the lower knife;
2) Putting 25-60 parts by weight of aluminum silicate fibers into a beating machine with a proper amount of water, beating for 3-5 min by a light knife, and stopping beating after the fibers are uniformly dispersed in the water, wherein the mass percentage concentration of the fibers in the water is 2-5%;
3) Placing the slurry obtained in the step 1) and the step 2) into a slurry preparation tank, adding a proper amount of water to prepare the slurry with the mass percentage concentration of 0.4-0.6%, adding an adhesive accounting for 1-15% of the total weight of the absolute dry fiber and titanium dioxide accounting for 5-10% of the total weight of the absolute dry fiber, and uniformly stirring to form mixed slurry;
4) And (3) pumping the mixed slurry obtained in the step (3) into a cylinder mould, and preparing the high-temperature-resistant heat-insulating paper for the thermal battery through dehydration, moulding, squeezing, drying and slitting.
7. The method for preparing high temperature resistant insulating paper for thermal battery according to claim 6, wherein the adhesive is aluminum sol or silica sol.
8. The method for preparing high temperature resistant insulating paper for thermal battery according to claim 6, wherein the titanium pigment is anatase titanium pigment or rutile titanium pigment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310660237.1A CN116556110A (en) | 2023-06-06 | 2023-06-06 | High-temperature-resistant heat insulation paper for thermal battery and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310660237.1A CN116556110A (en) | 2023-06-06 | 2023-06-06 | High-temperature-resistant heat insulation paper for thermal battery and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116556110A true CN116556110A (en) | 2023-08-08 |
Family
ID=87486200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310660237.1A Pending CN116556110A (en) | 2023-06-06 | 2023-06-06 | High-temperature-resistant heat insulation paper for thermal battery and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116556110A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104631198A (en) * | 2015-01-28 | 2015-05-20 | 浙江省普瑞科技有限公司 | Diaphragm paper for mercury-free alkaline zinc-manganese dioxide battery and preparation method thereof |
| CN107326722A (en) * | 2017-05-05 | 2017-11-07 | 华南理工大学 | A kind of preparation method of lithium battery diaphragm paper |
| CN108071050A (en) * | 2017-11-30 | 2018-05-25 | 王荣海 | Novel nano sheathing paper and preparation method thereof |
| CN112431059A (en) * | 2020-10-29 | 2021-03-02 | 浙江鹏辰造纸研究所有限公司 | Temperature-resistant mineral fiber paper heat-insulating material and preparation method thereof |
| JP2022025186A (en) * | 2020-07-29 | 2022-02-10 | 松本油脂製薬株式会社 | Secondary battery separator and use thereof, slurry composition for secondary battery separator, and resin particle for secondary battery separator |
-
2023
- 2023-06-06 CN CN202310660237.1A patent/CN116556110A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104631198A (en) * | 2015-01-28 | 2015-05-20 | 浙江省普瑞科技有限公司 | Diaphragm paper for mercury-free alkaline zinc-manganese dioxide battery and preparation method thereof |
| CN107326722A (en) * | 2017-05-05 | 2017-11-07 | 华南理工大学 | A kind of preparation method of lithium battery diaphragm paper |
| CN108071050A (en) * | 2017-11-30 | 2018-05-25 | 王荣海 | Novel nano sheathing paper and preparation method thereof |
| JP2022025186A (en) * | 2020-07-29 | 2022-02-10 | 松本油脂製薬株式会社 | Secondary battery separator and use thereof, slurry composition for secondary battery separator, and resin particle for secondary battery separator |
| CN112431059A (en) * | 2020-10-29 | 2021-03-02 | 浙江鹏辰造纸研究所有限公司 | Temperature-resistant mineral fiber paper heat-insulating material and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2011215966B2 (en) | Phosphate bonded composites and methods | |
| CN104631198B (en) | Diaphragm paper for mercury-free alkaline zinc-manganese dioxide battery and preparation method thereof | |
| CN108116002B (en) | A kind of sandwich thermally protective materials and its manufacturing method with high slab strength | |
| CN113416050A (en) | Asbestos-free light high-strength fireproof calcium silicate board and preparation method thereof | |
| CN111188222B (en) | Preparation method of few-glue/no-glue basalt fiber paper | |
| CN110023258A (en) | Battery separator and correlation technique | |
| CN108329046A (en) | Preparation method of carbon aerogel heat insulation composite material | |
| CN103572641A (en) | Method for preparing aramid paper from para aramid fibrid as raw material | |
| CN101144253A (en) | High-temperature resistant insulation continuous sheet and manufacturing method thereof | |
| CN101219879A (en) | Carbon fiber reinforcing calcium silicate heat-preserving heat insulation material and method for producing the same | |
| CN114214867A (en) | Corona-resistant aramid/mica insulation paper and preparation method thereof | |
| CN116556110A (en) | High-temperature-resistant heat insulation paper for thermal battery and preparation method thereof | |
| CN104831584A (en) | Polyester fiber conductive paper and preparation method thereof | |
| CN112645677B (en) | High-low temperature composite high-density ceramic fiber board and preparation method thereof | |
| CN102677505A (en) | Steaming process for modifying bleaching bamboo paper pulp and bleaching wood paper pulp into dissolving pulp in compound way | |
| CN110746199B (en) | Method for manufacturing multi-cavity-hole ceramic composite heat-insulating material | |
| CN102888781A (en) | Manufacturing process of high-performance polyphenylene sulfide fiber paper | |
| CN103993509B (en) | Automobile air filter paper of a kind of stay-in-grade loaded zirconia and preparation method thereof | |
| CN103806345A (en) | Polyimide insulating paperboard and preparation method thereof | |
| CN1333134C (en) | B type paper with ceramics fibres | |
| CN112431059A (en) | Temperature-resistant mineral fiber paper heat-insulating material and preparation method thereof | |
| KR100681478B1 (en) | Paper for enveloping a plate in battery and a method for manufacturing the paper | |
| KR101547776B1 (en) | Aramid wet-laid non woven fabrics for honeycomb and process of producing thereof | |
| CN109371742B (en) | Cup packing paper and preparation method thereof | |
| CN101165269A (en) | Preparation method for producing aramid fiber paper by using thermoplastic fiber as adhesive |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |