CN111995362A - Water-permeable and air-permeable microporous ceramic flowerpot and preparation process thereof - Google Patents
Water-permeable and air-permeable microporous ceramic flowerpot and preparation process thereof Download PDFInfo
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- 239000000919 ceramic Substances 0.000 title claims abstract description 49
- 238000002360 preparation method Methods 0.000 title claims abstract description 24
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 50
- 239000000843 powder Substances 0.000 claims abstract description 45
- 239000010455 vermiculite Substances 0.000 claims abstract description 40
- 229910052902 vermiculite Inorganic materials 0.000 claims abstract description 40
- 235000019354 vermiculite Nutrition 0.000 claims abstract description 40
- 239000004576 sand Substances 0.000 claims abstract description 33
- 229910052845 zircon Inorganic materials 0.000 claims abstract description 26
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000004927 clay Substances 0.000 claims abstract description 19
- 239000002994 raw material Substances 0.000 claims abstract description 19
- 239000005995 Aluminium silicate Substances 0.000 claims abstract description 17
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 17
- 235000012211 aluminium silicate Nutrition 0.000 claims abstract description 17
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000012188 paraffin wax Substances 0.000 claims abstract description 17
- 238000001238 wet grinding Methods 0.000 claims description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 30
- 238000003756 stirring Methods 0.000 claims description 21
- 238000010304 firing Methods 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 16
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 14
- 238000001035 drying Methods 0.000 claims description 14
- 239000011812 mixed powder Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 230000032683 aging Effects 0.000 claims description 7
- 238000000227 grinding Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- PYIDGJJWBIBVIA-UYTYNIKBSA-N lauryl glucoside Chemical compound CCCCCCCCCCCCO[C@@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1O PYIDGJJWBIBVIA-UYTYNIKBSA-N 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 7
- 238000007873 sieving Methods 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 7
- 238000004321 preservation Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000011259 mixed solution Substances 0.000 claims description 2
- 230000035699 permeability Effects 0.000 description 12
- 239000011148 porous material Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/02—Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
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- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/04—Clay; Kaolin
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- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/6261—Milling
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
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- C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
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- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
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Abstract
The invention discloses a water-permeable and air-permeable microporous ceramic flowerpot and a preparation process thereof, wherein the water-permeable and air-permeable microporous ceramic flowerpot is prepared from the following raw materials in parts by weight: 30.0 to 40.0 parts of kaolin, 4.5 to 6.5 parts of clay, 6.5 to 8.3 parts of diatomite, 3.8 to 6.8 parts of sand, 1.4 to 3.4 parts of zircon micro powder, 2.4 to 4.0 parts of vermiculite micro powder, 5.6 to 8.6 parts of nano alumina and 7.5 to 8.5 parts of chlorinated paraffin. According to the water-permeable and air-permeable microporous ceramic flowerpot prepared by the invention, the sand with low cost is added into the raw materials, so that the raw material cost is reduced, the resource utilization maximization is realized, the zircon micro powder is added, the mechanical strength and the comprehensive performance are enhanced, the vermiculite micro powder is added, the water-permeable and air-permeable performance is improved, and the stability and the durability are enhanced.
Description
Technical Field
The invention relates to the technical field of ceramic flowerpots, in particular to a water-permeable and air-permeable microporous ceramic flowerpot and a preparation process thereof.
Background
At present, the ceramic flowerpots on the market are large in proportion, and the bottom of each ceramic flowerpot is provided with a through hole, so that the ventilation of soil and plants in the flowerpots is facilitated, and moisture is absorbed. When the flowerpot is used indoors, most people can nest a plastic flowerpot outside the flowerpot to prevent water from flowing everywhere. However, the wall surface and the bottom surface of the traditional ceramic flowerpot body are both of compact structures, the water permeability and the air permeability are poor, the water can be supplemented in time under the condition that the flowerpot soil is lack of water only by the through holes at the bottom, and meanwhile, the water can not be rapidly evacuated under the condition that the watering is too much.
The microporous ceramic has good adsorbability, air permeability, corrosion resistance, environmental compatibility, biocompatibility and the like, and is widely applied to the fields of filtration of various liquids and gases, immobilized biological enzyme carriers, biological adaptive carriers and the like, but the production raw materials and the process cost of the microporous ceramic are higher at present, and further improvement is needed.
Chinese patent CN109942311A discloses a microporous ceramic flowerpot with high water permeability and air permeability and a preparation method thereof. The microporous ceramic flowerpot with high water permeability and air permeability is characterized in that micropores are formed on the bottom surface and the side wall of the flowerpot, and the blank of the flowerpot body is made of clay, dried sludge, limestone, carbon powder, a binder and polypropylene fibers. The preparation method of the microporous ceramic flowerpot with high water permeability and air permeability uses clay and limestone as main raw materials, and dried sludge and carbon powder are added into the raw materials; is suitable for roll forming to increase the strength of the flowerpot body. The flowerpot prepared by the method is poor in mechanical strength, and the water permeability and the air permeability need to be improved.
Chinese patent CN105961066A discloses a side wall flowerpot with air holes, the side wall of the flowerpot is provided with air holes, the edges of the air holes extend inwards and downwards to form an inner hole, and the horizontal position of the highest point of the upper edge of the inner hole is lower than the horizontal position of the lowest point of the lower edge of the air holes; or the edge of the air hole extends outwards and upwards to form an outer hole, and the horizontal position of the highest point of the upper edge of the air hole is lower than that of the lowest point of the lower edge of the outer hole; or the edge of the air hole extends inwards and downwards and outwards and upwards at the same time to form an inner hole and an outer hole, and the horizontal position of the highest point of the upper edge of the inner hole is lower than the horizontal position of the lowest point of the lower edge of the outer hole. The flowerpot with the ventilating side wall cannot timely evacuate moisture, cannot fully change the ventilating property, and is not high in practicability.
Therefore, the invention provides the water-permeable and air-permeable microporous ceramic flowerpot and the preparation process thereof, aiming at the problems of poor water and air permeability of the traditional ceramic flowerpot and high cost of the microporous ceramic raw material and the process.
Disclosure of Invention
Aiming at the problems, the invention provides a water-permeable and air-permeable microporous ceramic flowerpot and a preparation process thereof.
The technical scheme adopted by the invention for solving the problems is as follows: the water-permeable and air-permeable microporous ceramic flowerpot is prepared from the following raw materials in parts by weight: 30.0 to 40.0 parts of kaolin, 4.5 to 6.5 parts of clay, 6.5 to 8.3 parts of diatomite, 3.8 to 6.8 parts of sand, 1.4 to 3.4 parts of zircon micro powder, 2.4 to 4.0 parts of vermiculite micro powder, 5.6 to 8.6 parts of nano alumina and 7.5 to 8.5 parts of chlorinated paraffin.
Further, the water-permeable and air-permeable microporous ceramic flowerpot is prepared from the following raw materials in parts by weight: 32.0 to 38.0 parts of kaolin, 5.0 to 6.0 parts of clay, 7.0 to 8.0 parts of diatomite, 4.8 to 5.8 parts of sand, 1.5 to 2.9 parts of zircon micro powder, 2.9 to 3.5 parts of vermiculite micro powder, 6.6 to 7.6 parts of nano alumina and 7.7 to 8.2 parts of chlorinated paraffin.
Furthermore, the particle size of the zircon micro powder is 200 meshes-300 meshes.
Further, the preparation method of the vermiculite micropowder comprises the following steps: pre-burning vermiculite for 30-40 minutes at 380-480 ℃, then heating to 780-980 ℃, carrying out heat preservation roasting for 3-6 hours, cooling, crushing to 100-150 meshes, wet-grinding for 6-8 hours, sieving with a 200-mesh sieve, and drying to obtain vermiculite micropowder.
Furthermore, in the wet grinding process, the ratio of the materials, the balls and the medium is 1: 1.5-2.0: 1.0-1.5, wherein the wet grinding medium is a mixture of a wet grinding medium and a wet grinding medium in a mass ratio of 1: 2: 0.05-0.08 of mixed solution consisting of ethanol, water and dodecyl glucoside.
Another object of the present invention is to provide a process for preparing the water-permeable and air-permeable microporous ceramic flowerpot, comprising the steps of:
step one, washing and drying the sand in parts by weight, crushing the sand into 200-300 meshes, and then mixing and grinding the sand with the kaolin, the clay and the diatomite in parts by weight for 3-8 hours to obtain mixed powder for later use;
step two, adding the zircon micro powder, the vermiculite micro powder, the nano alumina and the chlorinated paraffin in parts by weight into the mixed powder obtained in the step one, stirring for 5-10 minutes until the mixture is uniform, then adding water, and stirring in vacuum to prepare a pug;
and step three, pressing and molding the pug prepared in the step two to obtain a flowerpot blank, aging the flowerpot blank for 4-6 hours, firing by stages, and cooling to obtain the water-permeable and air-permeable microporous ceramic flowerpot.
Further, in the second step, the moisture content in the mud material is 15% -25%.
Further, in the second step, the vacuum stirring is carried out twice, each time lasts for 20-30 min, and the intermediate standing lasts for 5-8 min.
Further, in the third step, the staged firing specifically comprises: the flowerpot body is firstly fired for 30min to 50min at the temperature of 320 ℃ to 380 ℃, then fired for 60min to 120min at the temperature of 620 ℃ to 720 ℃, and finally fired for 240min to 360min at the temperature of 980 ℃ to 1030 ℃.
The invention has the advantages that:
(1) according to the water-permeable and air-permeable microporous ceramic flowerpot prepared by the invention, the sand with low cost is added into the raw materials, so that the raw material cost is reduced, the resource utilization maximization is realized, the zircon micro powder is added, the mechanical strength and the comprehensive performance are enhanced, the vermiculite micro powder is added, the water-permeable and air-permeable performance is improved, and the stability and the durability are enhanced;
(2) the water-permeable and air-permeable microporous ceramic flowerpot prepared by the invention has uniform gaps and excellent water-permeable and air-permeable performance, can meet the requirements of plants in the flowerpot on water and nutrients under various environments, and promotes the healthy growth of the plants;
(3) the water-permeable and air-permeable microporous ceramic flowerpot prepared by the invention is firm and durable, the raw materials are low in price, the preparation process is convenient to operate, the energy consumption is low, and the method is suitable for popularization.
Detailed Description
The following detailed description of embodiments of the invention, but the invention can be practiced in many different ways, as defined and covered by the claims.
Example 1
Permeable and breathable microporous ceramic flowerpot
The feed is prepared from the following raw materials in parts by weight: 30.0kg of kaolin, 4.5kg of clay, 6.5kg of diatomite, 3.8kg of sand, 1.4kg of zircon micro powder, 2.4kg of vermiculite micro powder, 5.6kg of nano alumina and 7.5kg of chlorinated paraffin; wherein the particle size of the zircon micro powder is 200 meshes; the preparation method of the vermiculite micropowder comprises the following steps: pre-burning vermiculite for 30 minutes at the temperature of 380 ℃, then heating to 780 ℃, carrying out heat preservation roasting for 3 hours, cooling, then crushing to 100 meshes, then carrying out wet grinding for 6 hours, sieving with a 200-mesh sieve, and drying to obtain vermiculite micropowder; in the wet milling process, the ratio of materials, balls and media is 1: 1.5: 1.0, the wet grinding medium is a mixture of a wet grinding medium and a wet grinding medium in a mass ratio of 1: 2: 0.05 of ethanol, water and dodecyl glucoside.
The preparation steps are as follows:
step one, washing and drying the sand in parts by weight, crushing the sand into 200 meshes, and then mixing and grinding the sand with the kaolin, the clay and the diatomite in parts by weight for 3 hours to obtain mixed powder for later use;
step two, adding the zircon micro powder, the vermiculite micro powder, the nano alumina and the chlorinated paraffin in parts by weight into the mixed powder obtained in the step one, stirring for 5 minutes to be uniform, then adding water, and stirring in vacuum to prepare a pug with the water content of 15%; wherein, the vacuum stirring is carried out twice, each time is 20min, and the middle is kept still for 5 min;
and step three, pressing and molding the pug prepared in the step two to obtain a flowerpot blank, aging the flowerpot blank for 4 hours, firing the flowerpot blank at 320 ℃ for 30min, then firing at 620 ℃ for 60min, finally firing at 980 ℃ for 240min, and cooling to obtain the water-permeable and air-permeable microporous ceramic flowerpot.
Through tests, the water-permeable and air-permeable microporous ceramic flowerpot prepared by the embodiment has the porosity of 28.8%, the pore diameter of 3nm and the compressive strength of 80 MPa.
Example 2
Permeable and breathable microporous ceramic flowerpot
The feed is prepared from the following raw materials in parts by weight: 40.0kg of kaolin, 6.5kg of clay, 8.3kg of diatomite, 6.8kg of sand, 3.4kg of zircon micro powder, 4.0kg of vermiculite micro powder, 8.6kg of nano alumina and 8.5kg of chlorinated paraffin; wherein the particle size of the zircon micro powder is 300 meshes; the preparation method of the vermiculite micropowder comprises the following steps: pre-burning vermiculite for 40 minutes at 480 ℃, then heating to 980 ℃, carrying out heat preservation roasting for 6 hours, cooling, then crushing to 150 meshes, then carrying out wet grinding for 8 hours, sieving by a 200-mesh sieve, and drying to obtain vermiculite micropowder; in the wet milling process, the ratio of materials, balls and media is 1: 2.0: 1.5, the wet grinding medium is a mixture of a wet grinding medium and a wet grinding medium in a mass ratio of 1: 2: 0.08 of ethanol, water and dodecyl glucoside.
The preparation steps are as follows:
step one, washing and drying the sand in parts by weight, crushing the sand into 300 meshes, and then mixing and grinding the sand with the kaolin, the clay and the diatomite in parts by weight for 8 hours to obtain mixed powder for later use;
step two, adding the zircon micro powder, the vermiculite micro powder, the nano alumina and the chlorinated paraffin in parts by weight into the mixed powder obtained in the step one, stirring for 10 minutes until the mixture is uniform, then adding water, and stirring in vacuum to prepare a pug with the water content of 25%; wherein, the vacuum stirring is carried out twice, each time is 30min, and the middle is kept still for 8 min;
and step three, pressing and molding the pug prepared in the step two to obtain a flowerpot blank, aging the flowerpot blank for 6 hours, firing the flowerpot blank at 380 ℃ for 50min, then firing at 720 ℃ for 120min, finally firing at 1030 ℃ for 360min, and cooling to obtain the water-permeable and air-permeable microporous ceramic flowerpot.
Through tests, the water-permeable and air-permeable microporous ceramic flowerpot prepared by the embodiment has the porosity of 27.6%, the pore diameter of 5nm and the compressive strength of 82 MPa.
Example 3
Permeable and breathable microporous ceramic flowerpot
The feed is prepared from the following raw materials in parts by weight: 32.0kg of kaolin, 5.0kg of clay, 7.0kg of diatomite, 4.8kg of sand, 1.5kg of zircon micro powder, 2.9kg of vermiculite micro powder, 6.6kg of nano alumina and 7.7kg of chlorinated paraffin; wherein the particle size of the zircon micro powder is 220 meshes; the preparation method of the vermiculite micropowder comprises the following steps: pre-burning vermiculite for 32 minutes at 400 ℃, then heating to 830 ℃, carrying out heat preservation roasting for 4 hours, cooling, then crushing to 110 meshes, then carrying out wet grinding for 6.5 hours, sieving with a 200-mesh sieve, and drying to obtain vermiculite micropowder; in the wet milling process, the ratio of materials, balls and media is 1: 1.6: 1.1, the wet grinding medium is a mixture of a wet grinding medium and a wet grinding medium in a mass ratio of 1: 2: 0.06 of a mixture of ethanol, water and dodecyl glucoside.
The preparation steps are as follows:
step one, washing and drying the sand in parts by weight, crushing the sand into 220 meshes, and then mixing and grinding the sand with the kaolin, the clay and the diatomite in parts by weight for 4 hours to obtain mixed powder for later use;
step two, adding the zircon micro powder, the vermiculite micro powder, the nano alumina and the chlorinated paraffin in parts by weight into the mixed powder obtained in the step one, stirring for 6 minutes until the mixture is uniform, then adding water, and stirring in vacuum to prepare a pug with the water content of 18%; wherein, the vacuum stirring is carried out twice, each time is 22min, and the middle is kept stand for 6 min;
and step three, pressing and molding the pug prepared in the step two to obtain a flowerpot blank, aging the flowerpot blank for 4.5 hours, firing the flowerpot blank at 330 ℃ for 35min, then at 640 ℃ for 80min, finally at 990 ℃ for 280min, and cooling to obtain the water-permeable and air-permeable microporous ceramic flowerpot.
Through tests, the water-permeable and air-permeable microporous ceramic flowerpot prepared by the embodiment has the porosity of 28.1%, the pore diameter of 4nm and the compressive strength of 77 MPa.
Example 4
Permeable and breathable microporous ceramic flowerpot
The feed is prepared from the following raw materials in parts by weight: 38.0kg of kaolin, 6.0kg of clay, 8.0kg of diatomite, 5.8kg of sand, 2.9kg of zircon micro powder, 3.5kg of vermiculite micro powder, 7.6kg of nano alumina and 8.2kg of chlorinated paraffin; wherein the particle size of the zircon micro powder is 280 meshes; the preparation method of the vermiculite micropowder comprises the following steps: pre-burning vermiculite for 38 minutes at 460 ℃, heating to 960 ℃, roasting for 5 hours at a constant temperature, cooling, crushing to 140 meshes, wet-grinding for 7.5 hours, sieving with a 200-mesh sieve, and drying to obtain vermiculite micropowder; in the wet milling process, the ratio of materials, balls and media is 1: 1.9: 1.4, the wet grinding medium is a mixture of a wet grinding medium and a wet grinding medium in a mass ratio of 1: 2: 0.07 part of a mixture of ethanol, water and dodecyl glucoside.
The preparation steps are as follows:
step one, washing and drying the sand in parts by weight, crushing the sand into 280 meshes, and then mixing and grinding the sand with the kaolin, the clay and the diatomite in parts by weight for 7 hours to obtain mixed powder for later use;
step two, adding the zircon micro powder, the vermiculite micro powder, the nano alumina and the chlorinated paraffin in parts by weight into the mixed powder obtained in the step one, stirring for 8 minutes until the mixture is uniform, then adding water, and stirring in vacuum to prepare a pug with the water content of 22%; wherein, the vacuum stirring is carried out twice, each time is 28min, and the middle is kept still for 7 min;
and step three, pressing and molding the pug prepared in the step two to obtain a flowerpot body, aging the flowerpot body for 5.5 hours, firing the flowerpot body at 360 ℃ for 45min, then firing at 700 ℃ for 100min, finally firing at 1010 ℃ for 320min, and cooling to obtain the water-permeable and air-permeable microporous ceramic flowerpot.
Through tests, the water-permeable and air-permeable microporous ceramic flowerpot prepared by the embodiment has the porosity of 29.0%, the pore diameter of 6nm and the compressive strength of 78 MPa.
Example 5
Permeable and breathable microporous ceramic flowerpot
The feed is prepared from the following raw materials in parts by weight: 35.0kg of kaolin, 5.5kg of clay, 7.5kg of diatomite, 5.3kg of sand, 2.1kg of zircon micro powder, 3.2kg of vermiculite micro powder, 7.1kg of nano alumina and 8.0kg of chlorinated paraffin; wherein the particle size of the zircon micro powder is 250 meshes; the preparation method of the vermiculite micropowder comprises the following steps: pre-burning vermiculite for 35 minutes at 430 ℃, heating to 880 ℃, roasting for 4.5 hours at the temperature, cooling, crushing to 130 meshes, wet-grinding for 7 hours, sieving with a 200-mesh sieve, and drying to obtain vermiculite micropowder; in the wet milling process, the ratio of materials, balls and media is 1: 1.8: 1.3, the wet grinding medium is a mixture of a wet grinding medium and a wet grinding medium in a mass ratio of 1: 2: 0.06 of a mixture of ethanol, water and dodecyl glucoside.
The preparation steps are as follows:
step one, washing and drying the sand in parts by weight, crushing the sand into 250 meshes, and then mixing and grinding the sand with the kaolin, the clay and the diatomite in parts by weight for 5 hours to obtain mixed powder for later use;
step two, adding the zircon micro powder, the vermiculite micro powder, the nano alumina and the chlorinated paraffin in parts by weight into the mixed powder obtained in the step one, stirring for 8 minutes until the mixture is uniform, then adding water, and stirring in vacuum to prepare a pug with the water content of 20%; wherein, the vacuum stirring is carried out twice, each time lasts for 25min, and the middle is kept still for 7 min;
and step three, pressing and molding the pug prepared in the step two to obtain a flowerpot blank, aging the flowerpot blank for 5 hours, firing the flowerpot blank at 350 ℃ for 40min, then firing at 670 ℃ for 90min, finally firing at 1000 ℃ for 300min, and cooling to obtain the water-permeable and air-permeable microporous ceramic flowerpot.
Through tests, the water-permeable and air-permeable microporous ceramic flowerpot prepared in the embodiment has the porosity of 27.9%, the pore diameter of 3nm and the compressive strength of 83 MPa.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The water-permeable and air-permeable microporous ceramic flowerpot is characterized by being prepared from the following raw materials in parts by weight: 30.0 to 40.0 parts of kaolin, 4.5 to 6.5 parts of clay, 6.5 to 8.3 parts of diatomite, 3.8 to 6.8 parts of sand, 1.4 to 3.4 parts of zircon micro powder, 2.4 to 4.0 parts of vermiculite micro powder, 5.6 to 8.6 parts of nano alumina and 7.5 to 8.5 parts of chlorinated paraffin.
2. The water-permeable air-permeable microporous ceramic flowerpot according to claim 1, wherein the water-permeable air-permeable microporous ceramic flowerpot is prepared from the following raw materials in parts by weight: 32.0 to 38.0 parts of kaolin, 5.0 to 6.0 parts of clay, 7.0 to 8.0 parts of diatomite, 4.8 to 5.8 parts of sand, 1.5 to 2.9 parts of zircon micro powder, 2.9 to 3.5 parts of vermiculite micro powder, 6.6 to 7.6 parts of nano alumina and 7.7 to 8.2 parts of chlorinated paraffin.
3. The water-permeable and air-permeable microporous ceramic flowerpot according to claim 1, wherein the zircon micro powder has a particle size of 200-300 meshes.
4. The water-permeable and air-permeable microporous ceramic flowerpot according to claim 1, wherein the preparation method of the vermiculite micropowder comprises the following steps: pre-burning vermiculite for 30-40 minutes at 380-480 ℃, then heating to 780-980 ℃, carrying out heat preservation roasting for 3-6 hours, cooling, crushing to 100-150 meshes, wet-grinding for 6-8 hours, sieving with a 200-mesh sieve, and drying to obtain vermiculite micropowder.
5. The water-permeable and air-permeable microporous ceramic flowerpot according to claim 4, wherein the ratio of materials, balls and media in the wet grinding process is 1: 1.5-2.0: 1.0-1.5, wherein the wet grinding medium is a mixture of a wet grinding medium and a wet grinding medium in a mass ratio of 1: 2: 0.05-0.08 of mixed solution consisting of ethanol, water and dodecyl glucoside.
6. A process for preparing a water-permeable and air-permeable microporous ceramic flowerpot as claimed in claim 1-5, comprising the steps of:
step one, washing and drying the sand in parts by weight, crushing the sand into 200-300 meshes, and then mixing and grinding the sand with the kaolin, the clay and the diatomite in parts by weight for 3-8 hours to obtain mixed powder for later use;
step two, adding the zircon micro powder, the vermiculite micro powder, the nano alumina and the chlorinated paraffin in parts by weight into the mixed powder obtained in the step one, stirring for 5-10 minutes until the mixture is uniform, then adding water, and stirring in vacuum to prepare a pug;
and step three, pressing and molding the pug prepared in the step two to obtain a flowerpot blank, aging the flowerpot blank for 4-6 hours, firing by stages, and cooling to obtain the water-permeable and air-permeable microporous ceramic flowerpot.
7. The preparation process according to claim 6, wherein in the second step, the moisture content in the pug is 15-25%.
8. The preparation process according to claim 6, wherein in the second step, the vacuum stirring is carried out twice, each time is 20-30 min, and the intermediate standing is 5-8 min.
9. The preparation process according to claim 6, wherein the staged firing specifically comprises, in step three: the flowerpot body is firstly fired for 30min to 50min at the temperature of 320 ℃ to 380 ℃, then fired for 60min to 120min at the temperature of 620 ℃ to 720 ℃, and finally fired for 240min to 360min at the temperature of 980 ℃ to 1030 ℃.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113796249A (en) * | 2021-08-09 | 2021-12-17 | 周林 | Efficient cultivation method for cultivating kiwi bonsai landscape fruits by mother plant |
| CN115636658A (en) * | 2022-11-04 | 2023-01-24 | 福建省德化同鑫陶瓷有限公司 | Degradable green environment-friendly ceramic flowerpot and manufacturing method thereof |
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