CN111548150A - Preparation process for preparing ceramic rear cover by gel casting - Google Patents
Preparation process for preparing ceramic rear cover by gel casting Download PDFInfo
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- CN111548150A CN111548150A CN202010416414.8A CN202010416414A CN111548150A CN 111548150 A CN111548150 A CN 111548150A CN 202010416414 A CN202010416414 A CN 202010416414A CN 111548150 A CN111548150 A CN 111548150A
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- 239000000919 ceramic Substances 0.000 title claims abstract description 127
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 238000005266 casting Methods 0.000 title claims abstract description 14
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical class O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims abstract description 81
- 239000000843 powder Substances 0.000 claims abstract description 60
- 238000005245 sintering Methods 0.000 claims abstract description 26
- 238000001035 drying Methods 0.000 claims abstract description 25
- 239000002270 dispersing agent Substances 0.000 claims abstract description 19
- 238000004080 punching Methods 0.000 claims abstract description 18
- 239000003054 catalyst Substances 0.000 claims abstract description 17
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 17
- 239000003999 initiator Substances 0.000 claims abstract description 17
- 239000000178 monomer Substances 0.000 claims abstract description 17
- 239000002904 solvent Substances 0.000 claims abstract description 17
- 239000002002 slurry Substances 0.000 claims abstract description 14
- 238000000498 ball milling Methods 0.000 claims abstract description 12
- 239000011268 mixed slurry Substances 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 27
- 239000008367 deionised water Substances 0.000 claims description 10
- 229910021641 deionized water Inorganic materials 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical group NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 5
- KWYHDKDOAIKMQN-UHFFFAOYSA-N N,N,N',N'-tetramethylethylenediamine Chemical group CN(C)CCN(C)C KWYHDKDOAIKMQN-UHFFFAOYSA-N 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 238000003754 machining Methods 0.000 claims description 5
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 5
- DBCAQXHNJOFNGC-UHFFFAOYSA-N 4-bromo-1,1,1-trifluorobutane Chemical compound FC(F)(F)CCCBr DBCAQXHNJOFNGC-UHFFFAOYSA-N 0.000 claims description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 4
- 229910019142 PO4 Inorganic materials 0.000 claims description 4
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 4
- STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Substances CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 claims description 4
- 239000010452 phosphate Substances 0.000 claims description 4
- 229920000058 polyacrylate Polymers 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 claims description 3
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000292 calcium oxide Substances 0.000 claims description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 3
- 239000000395 magnesium oxide Substances 0.000 claims description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 3
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 235000012239 silicon dioxide Nutrition 0.000 claims description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 8
- 239000000243 solution Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 210000002858 crystal cell Anatomy 0.000 description 2
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003349 gelling agent Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000013081 microcrystal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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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
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/48—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on zirconium or hafnium oxides, zirconates, zircon or hafnates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B15/00—General arrangement or layout of plant ; Industrial outlines or plant installations
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- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
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Abstract
The invention discloses a preparation process for preparing a ceramic rear cover by gel casting, which comprises the following steps: preparing raw materials: modified zirconia ceramic powder, a monomer, a cross-linking agent, a dispersing agent, a sintering aid, an initiator, a catalyst and a solvent; placing the modified zirconia ceramic powder, a monomer, a cross-linking agent, a dispersing agent and a solvent into a ball mill for ball milling to obtain mixed slurry; adding an initiator and a catalyst into the mixed slurry, and performing vacuum defoaming to obtain ceramic slurry; injecting the ceramic slurry into a mold, standing, demolding and drying to obtain a green body of the rear cover of the ceramic mobile phone; placing the ceramic mobile phone rear cover green body in a punching machine for punching to obtain a ceramic mobile phone rear cover punching blank; the invention has the beneficial effects that: the ceramic rear cover is prepared by gel casting, so that the prepared ceramic rear cover is more uniform; the use of the modified zirconia ceramic powder is beneficial to increasing the strength of the prepared ceramic rear cover; simplifies the preparation process, improves the efficiency and has good market popularization value.
Description
Technical Field
The invention belongs to the technical field of preparation of a ceramic rear cover of a mobile phone, and particularly relates to a preparation process for preparing a ceramic rear cover by gel casting.
Background
The mobile phone can not be used without leaving the shell of the mobile phone, and the rear cover of the mobile phone is used as an important component for protecting the mobile phone, thereby playing an important role in the aspect of mobile phone protection.
The microcrystalline zirconium material is used as a ceramic powder raw material of the shell of the 3C product. The microcrystal is formed by juxtaposing thousands of crystal cells to tens of thousands of crystal cells, and has large specific surface area, quite outstanding surface activity and the like. The zirconia has good appearance treatment effect and has the advantages of phase change toughening, and is a ceramic material with the most extensive application of the shell of a 3C product.
The patent number CN201510864223.7 discloses a preparation method of a zirconia ceramic artwork based on a gel casting process, which comprises the following steps: providing yttrium stable zirconia powder, alumina powder, silicon nitride powder, a dispersing agent, a gelling agent and a release agent; ball-milling yttrium-stabilized tetragonal-phase zirconia powder, alumina powder, silicon nitride powder, a dispersing agent and a proper amount of deionized water to prepare ceramic powder suspended matter, and adjusting the pH of the ceramic powder suspended matter to 9-10; preheating the ceramic powder suspended matter; heating and dissolving the gel to obtain a gel solution, adding the gel solution to the preheated ceramic powder suspended matter while the gel solution is hot, stirring and mixing, and removing bubbles to obtain ceramic slurry; after a release agent is coated on the inner side wall of the mold, injecting ceramic slurry into the mold, standing for forming, and obtaining a green craft after demolding and drying; and calcining the green body of the handicraft to obtain the zirconia ceramic handicraft.
The above patent is not beneficial to the complex operation and further improving the strength of the prepared ceramic rear cover, and in order to improve the processing efficiency, the strength of the prepared ceramic rear cover is further improved; therefore, a preparation process for preparing the ceramic rear cover by gel injection molding is provided.
Disclosure of Invention
The invention aims to provide a preparation process for preparing a ceramic rear cover by gel casting, which improves the processing efficiency and further improves the strength of the prepared ceramic rear cover.
In order to achieve the purpose, the invention provides the following technical scheme: a preparation process for preparing a ceramic rear cover by gel casting comprises the following steps:
the method comprises the following steps: preparing raw materials: modified zirconia ceramic powder, a monomer, a cross-linking agent, a dispersing agent, a sintering aid, an initiator, a catalyst and a solvent;
step two: placing the modified zirconia ceramic powder, a monomer, a cross-linking agent, a dispersing agent and a solvent into a ball mill for ball milling to obtain mixed slurry;
step three: adding an initiator and a catalyst into the mixed slurry obtained in the step two, and performing vacuum defoaming to obtain ceramic slurry;
step four: injecting the ceramic slurry into a mold, standing, demolding and drying to obtain a green body of the rear cover of the ceramic mobile phone;
step five: placing the ceramic mobile phone rear cover green body in a punching machine for punching to obtain a ceramic mobile phone rear cover punching blank;
step six: placing the stamping blank in a sintering furnace, and adding a sintering aid for sintering to obtain a ceramic mobile phone rear cover body;
step seven: and carrying out CNC (computer numerical control) shape machining on the rear cover body of the ceramic mobile phone to obtain the rear cover of the ceramic mobile phone.
As a preferred technical scheme of the invention, the preparation process of the modified zirconia ceramic powder comprises the following steps:
the method comprises the following steps: putting the zirconia ceramic powder in a drying box, and drying to obtain dry zirconia ceramic powder;
step two: adding the dried zirconia ceramic powder into deionized water, performing ultrasonic dispersion, putting into a ball mill, performing ball milling for 10-14h, filtering, and drying to obtain the modified zirconia ceramic powder.
As a preferable technical scheme of the invention, the zirconia ceramic powder is placed in a drying oven and dried for 1-2h at 70-80 ℃ to obtain the dried zirconia ceramic powder.
In a preferred embodiment of the present invention, the monomer is acrylamide.
In a preferred embodiment of the present invention, the crosslinking agent is one of ethylene glycol dimethacrylate and butyl acrylate.
As a preferable technical scheme of the invention, the dispersant is one or two of phosphate and ammonium polyacrylate.
As a preferable technical scheme of the invention, the sintering aid is one or more of calcium oxide, magnesium oxide and silicon dioxide.
As a preferable technical scheme of the invention, the initiator is one of ammonium persulfate and potassium persulfate.
In a preferred embodiment of the present invention, the catalyst is 1, 2-bis (dimethylamino) ethane.
As a preferred technical scheme of the invention, the solvent is one of deionized water and absolute ethyl alcohol.
Compared with the prior art, the invention has the beneficial effects that:
(1) the ceramic rear cover is prepared by gel casting, so that the prepared ceramic rear cover is more uniform;
(2) the use of the modified zirconia ceramic powder is beneficial to increasing the strength of the prepared ceramic rear cover;
(3) simplifies the preparation process, improves the efficiency and has good market popularization value.
Drawings
FIG. 1 is a flow chart of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1, the present invention provides a technical solution: a preparation process for preparing a ceramic rear cover by gel casting comprises the following steps:
the method comprises the following steps: preparing raw materials: modified zirconia ceramic powder, a monomer, a cross-linking agent, a dispersing agent, a sintering aid, an initiator, a catalyst and a solvent; the monomer is acrylamide; the cross-linking agent is ethylene glycol dimethacrylate; the dispersant is phosphate; the sintering aid is calcium oxide; the initiator is ammonium persulfate; the catalyst is 1, 2-bis (dimethylamino) ethane; the solvent is deionized water;
step two: placing the modified zirconia ceramic powder, a monomer, a cross-linking agent, a dispersing agent and a solvent into a ball mill for ball milling to obtain mixed slurry;
step three: adding an initiator and a catalyst into the mixed slurry obtained in the step two, and performing vacuum defoaming to obtain ceramic slurry;
step four: injecting the ceramic slurry into a mold, standing, demolding and drying to obtain a green body of the rear cover of the ceramic mobile phone;
step five: placing the ceramic mobile phone rear cover green body in a punching machine for punching to obtain a ceramic mobile phone rear cover punching blank;
step six: placing the stamping blank in a sintering furnace, and adding a sintering aid for sintering to obtain a ceramic mobile phone rear cover body;
step seven: and carrying out CNC (computer numerical control) shape machining on the rear cover body of the ceramic mobile phone to obtain the rear cover of the ceramic mobile phone.
In this embodiment, preferably, the preparation process of the modified zirconia ceramic powder is as follows:
the method comprises the following steps: putting the zirconia ceramic powder into a drying oven, and drying for 2 hours at 7 ℃ to obtain dried zirconia ceramic powder, so that the effect of the dried zirconia ceramic powder is better;
step two: adding the dried zirconia ceramic powder into deionized water, performing ultrasonic dispersion, putting the mixture into a ball mill, performing ball milling for 10 hours, and filtering and drying the mixture to obtain the modified zirconia ceramic powder.
The use of the modified zirconia ceramic powder is beneficial to increasing the strength of the prepared ceramic rear cover.
Example 2
Referring to fig. 1, the present invention provides a technical solution: a preparation process for preparing a ceramic rear cover by gel casting comprises the following steps:
the method comprises the following steps: preparing raw materials: modified zirconia ceramic powder, a monomer, a cross-linking agent, a dispersing agent, a sintering aid, an initiator, a catalyst and a solvent; the monomer is acrylamide; the cross-linking agent is butyl acrylate; the dispersant is ammonium polyacrylate; the sintering aid is magnesium oxide; the initiator is potassium persulfate; the catalyst is 1, 2-bis (dimethylamino) ethane; the solvent is absolute ethyl alcohol;
step two: placing the modified zirconia ceramic powder, a monomer, a cross-linking agent, a dispersing agent and a solvent into a ball mill for ball milling to obtain mixed slurry;
step three: adding an initiator and a catalyst into the mixed slurry obtained in the step two, and performing vacuum defoaming to obtain ceramic slurry;
step four: injecting the ceramic slurry into a mold, standing, demolding and drying to obtain a green body of the rear cover of the ceramic mobile phone;
step five: placing the ceramic mobile phone rear cover green body in a punching machine for punching to obtain a ceramic mobile phone rear cover punching blank;
step six: placing the stamping blank in a sintering furnace, and adding a sintering aid for sintering to obtain a ceramic mobile phone rear cover body;
step seven: and carrying out CNC (computer numerical control) shape machining on the rear cover body of the ceramic mobile phone to obtain the rear cover of the ceramic mobile phone.
In this embodiment, preferably, the preparation process of the modified zirconia ceramic powder is as follows:
the method comprises the following steps: putting the zirconia ceramic powder into a drying oven, and drying for 1.5 hours at 75 ℃ to obtain dry zirconia ceramic powder, so that the effect of the dry zirconia ceramic powder is better;
step two: adding the dried zirconia ceramic powder into deionized water, performing ultrasonic dispersion, putting the mixture into a ball mill, performing ball milling for 12 hours, and filtering and drying the mixture to obtain the modified zirconia ceramic powder.
The use of the modified zirconia ceramic powder is beneficial to increasing the strength of the prepared ceramic rear cover.
Example 3
Referring to fig. 1, the present invention provides a technical solution: a preparation process for preparing a ceramic rear cover by gel casting comprises the following steps:
the method comprises the following steps: preparing raw materials: modified zirconia ceramic powder, a monomer, a cross-linking agent, a dispersing agent, a sintering aid, an initiator, a catalyst and a solvent; the monomer is acrylamide; the cross-linking agent is ethylene glycol dimethacrylate; the dispersant is phosphate and ammonium polyacrylate; the sintering aid is silicon dioxide; the initiator is ammonium persulfate; the catalyst is 1, 2-bis (dimethylamino) ethane; the solvent is deionized water;
step two: placing the modified zirconia ceramic powder, a monomer, a cross-linking agent, a dispersing agent and a solvent into a ball mill for ball milling to obtain mixed slurry;
step three: adding an initiator and a catalyst into the mixed slurry obtained in the step two, and performing vacuum defoaming to obtain ceramic slurry;
step four: injecting the ceramic slurry into a mold, standing, demolding and drying to obtain a green body of the rear cover of the ceramic mobile phone;
step five: placing the ceramic mobile phone rear cover green body in a punching machine for punching to obtain a ceramic mobile phone rear cover punching blank;
step six: placing the stamping blank in a sintering furnace, and adding a sintering aid for sintering to obtain a ceramic mobile phone rear cover body;
step seven: and carrying out CNC (computer numerical control) shape machining on the rear cover body of the ceramic mobile phone to obtain the rear cover of the ceramic mobile phone.
In this embodiment, preferably, the preparation process of the modified zirconia ceramic powder is as follows:
the method comprises the following steps: putting the zirconia ceramic powder into a drying oven, and drying for 1h at the temperature of 80 ℃ to obtain dried zirconia ceramic powder, so that the effect of the dried zirconia ceramic powder is better;
step two: adding the dried zirconia ceramic powder into deionized water, performing ultrasonic dispersion, putting into a ball mill, performing ball milling for 14h, filtering, and drying to obtain the modified zirconia ceramic powder.
The use of the modified zirconia ceramic powder is beneficial to increasing the strength of the prepared ceramic rear cover.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A preparation process for preparing a ceramic rear cover by gel casting is characterized by comprising the following steps: the preparation process comprises the following steps:
the method comprises the following steps: preparing raw materials: modified zirconia ceramic powder, a monomer, a cross-linking agent, a dispersing agent, a sintering aid, an initiator, a catalyst and a solvent;
step two: placing the modified zirconia ceramic powder, a monomer, a cross-linking agent, a dispersing agent and a solvent into a ball mill for ball milling to obtain mixed slurry;
step three: adding an initiator and a catalyst into the mixed slurry obtained in the step two, and performing vacuum defoaming to obtain ceramic slurry;
step four: injecting the ceramic slurry into a mold, standing, demolding and drying to obtain a green body of the rear cover of the ceramic mobile phone;
step five: placing the ceramic mobile phone rear cover green body in a punching machine for punching to obtain a ceramic mobile phone rear cover punching blank;
step six: placing the stamping blank in a sintering furnace, and adding a sintering aid for sintering to obtain a ceramic mobile phone rear cover body;
step seven: and carrying out CNC (computer numerical control) shape machining on the rear cover body of the ceramic mobile phone to obtain the rear cover of the ceramic mobile phone.
2. The process of claim 1, wherein the process comprises the following steps: the preparation process of the modified zirconia ceramic powder comprises the following steps:
the method comprises the following steps: putting the zirconia ceramic powder in a drying box, and drying to obtain dry zirconia ceramic powder;
step two: adding the dried zirconia ceramic powder into deionized water, performing ultrasonic dispersion, putting into a ball mill, performing ball milling for 10-14h, filtering, and drying to obtain the modified zirconia ceramic powder.
3. The process of claim 2, wherein the gel casting process comprises the following steps: and (3) putting the zirconia ceramic powder into a drying oven, and drying for 1-2h at the temperature of 70-80 ℃ to obtain the dried zirconia ceramic powder.
4. The process of claim 1, wherein the process comprises the following steps: the monomer is acrylamide.
5. The process of claim 1, wherein the process comprises the following steps: the cross-linking agent is one of ethylene glycol dimethacrylate and butyl acrylate.
6. The process of claim 1, wherein the process comprises the following steps: the dispersant is one or two of phosphate and ammonium polyacrylate.
7. The process of claim 1, wherein the process comprises the following steps: the sintering aid is one or more of calcium oxide, magnesium oxide and silicon dioxide.
8. The process of claim 1, wherein the process comprises the following steps: the initiator is one of ammonium persulfate and potassium persulfate.
9. The process of claim 1, wherein the process comprises the following steps: the catalyst is 1, 2-bis (dimethylamino) ethane.
10. The process of claim 1, wherein the process comprises the following steps: the solvent is one of deionized water and absolute ethyl alcohol.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114538938A (en) * | 2022-03-11 | 2022-05-27 | Oppo广东移动通信有限公司 | Shell, preparation method thereof and electronic equipment |
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| CN108840675A (en) * | 2018-08-14 | 2018-11-20 | 泉州市智通联科技发展有限公司 | A kind of preparation method of zirconia ceramics cell phone rear cover |
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Application publication date: 20200818 |