CN108863356A - A kind of high-strength abrasion-proof ceramic mobile phone shell and preparation method thereof - Google Patents
A kind of high-strength abrasion-proof ceramic mobile phone shell and preparation method thereof Download PDFInfo
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
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- H04M1/18—Telephone sets specially adapted for use in ships, mines, or other places exposed to adverse environment
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- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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Abstract
The invention discloses a kind of high-strength abrasion-proof ceramic mobile phone shell and preparation method thereof, the raw material for preparing high-strength abrasion-proof ceramic mobile phone shell includes by its parts by weight：65 parts ~ 85 parts of modified zirconia, YK0.2 parts ~ 2.5 parts of dispersant B, 8 parts ~ 16 parts of hydroxyapatite, 0.5 part ~ 4.5 parts of nano tin dioxide, 2 parts ~ 8 parts of polyethylene, 1.5 parts ~ 5.5 parts of random polypropylene, 0.1 part ~ 3.5 parts of polyethylene glycol, 0.2 part ~ 2.6 parts of stearic acid.High-strength abrasion-proof ceramic mobile phone shell prepared by the present invention has preparation method simple, the easy-operating feature of preparation process, and the phone housing hardness prepared is big, wearability is high, and large-scale production is suitble to promote.
Description
Technical field
The present invention relates to technical field of ceramic material, and in particular to a kind of high-strength abrasion-proof ceramic mobile phone shell and its preparation
Method.
Background technique
Phone housing be protection the most direct mode of body, and influence mobile phone beauty, weight, heat dissipation effect it is important because
Element.Material as phone housing should have the characteristics that higher-strength, stronger heat resistance, wear-resisting, appearance looks elegant, existing market
On as the material of phone housing be divided into metal material, resin and plastic, glass etc. mostly, metal material intensity with higher,
But its texture and beauty are poor, and weight also can be heavier；Resin and plastic material is light, and machinability is strong, but its intensity it is low, it is not wear-resisting,
Easily fall damage.And ceramic material hardness with higher, wearability and impact resistance, and good appearance, slippery feel, made
For phone housing market value with higher.
Chinese patent CN107892568A discloses a kind of high-strength, high-anti-friction phone housing preparation method, including as follows
Operating procedure：By Zirconium oxide powder, surfactant in mass ratio 1:10 ratio weighing；Ethyl alcohol is added, mixes by stirring,
Dry, filtering, obtains slurry；Slurry is mixed with binder, is kneaded, is granulated, obtains injection feeding；Feeding is injection moulded to obtain
Green body；To green body carry out dyeing detection Lijing dyeing detection after green body be placed in water carry out warm water degreasing obtain blank；By hair
Base is sintered, and obtains semi-finished product；Semi-finished product are machined, are polished, phone housing is obtained.But prepared by the patent
During phone housing, easily there is agglomeration in Zirconium oxide powder, and influences stable product quality.
Chinese patent CN103951420A discloses a kind of preparation method of ceramic manual casing, includes the following steps：It will pottery
Porcelain powder, organic functions auxiliary agent, solvent mixing, and carry out wet ball grinding be made can gel ceramic slurry, and carried out de-bubble；It will
By de-bubble can gel ceramic slurry be injected into preset die, using ultraviolet light cause complete gel process, obtain
Ceramic manual casing green body；Moisturizing processing is carried out to gained green body again, and then is burnt into, to obtain the ceramic manual casing, wherein have
Machine function additive includes monomer, crosslinking agent and photoinitiator, and the solvent is deionized water, polyethylene glycol etc..The patent uses
In organic functions auxiliary agent add photoinitiator and using ultraviolet light-initiated idiosome gel forming method so that idiosome at
Stress distribution is relatively uniform during type, break resistance is good, but its intensity is bad.
Therefore, in view of the above-mentioned problems, the present invention is modified the raw material for preparing ceramic mobile phone shell, overcome raw material powder
Phenomenon easy to reunite, and then provide a kind of with higher-strength, wearability, the ceramic mobile phone shell of good impact resistance.
Summary of the invention
The present invention is in view of the above-mentioned problems, provide a kind of high-strength abrasion-proof ceramic mobile phone shell and preparation method thereof.
The present invention solve the above problems used by technical solution be：A kind of high-strength abrasion-proof ceramic mobile phone shell, preparation
The raw material of high-strength abrasion-proof ceramic mobile phone shell includes by its parts by weight：65 parts ~ 85 parts, YK0.2 parts of dispersant B of modified zirconia
~ 2.5 parts, 8 parts ~ 16 parts of hydroxyapatite, 0.5 part ~ 4.5 parts of nano tin dioxide, 2 parts ~ 8 parts, 1.5 parts of random polypropylene of polyethylene
~ 5.5 parts, 0.1 part ~ 3.5 parts of polyethylene glycol, 0.2 part ~ 2.6 parts of stearic acid.Wherein, hydroxyapatite is hard group of organism of composition
The host inorganic object knitted has stronger hardness, and of good quality, and hand can be improved as the raw material of ceramic mobile phone shell
The hardness and beauty of machine shell；Polyethylene and random polypropylene add it as high molecular polymer together with modified zirconia
Work uses, and the rheological property of feeding in subsequent injections molding can be improved, enhance the stability of product.
Further, the partial size of nano tin dioxide is 20nm ~ 60nm.
Further, the partial size of hydroxyapatite is 250 mesh ~ 325 mesh.
Further, the preparation method of modified zirconia includes：
Zirconium oxide powder is mixed with ceria oxide powder, is put into vacuum oven by step a, 50oC ~ 65oC dry 3 hours ~ 6
Hour, obtain mixed-powder；Wherein, the weight ratio of cerium oxide and zirconium oxide is 1 ~ 5:100；
The obtained mixed-powder of step a is added in dehydrated alcohol by step b, and acetic acid, lauric acid are added after mixing, is surpassed
Sound disperses 5 minutes ~ 12 minutes, is heated to 45oC ~ 60oC while stirring, constant temperature 45 minutes ~ 90 minutes, filters while hot, and use nothing
Water-ethanol washing, after vacuum dried, obtains modified zirconia.Wherein, most Zirconium oxide powders are prepared by wet chemistry method
It arrives, has the characteristics that thin powder, surface hydrophilic, easy to reunite, the present invention bad with the mixing compatibility of binder and other components
It is modified by carrying out surface to Zirconium oxide powder, the compatibility of Zirconium oxide powder and organic binder can be improved, reduce powder
Agglomeration, be conducive to the molding realization of subsequent injections；First Zirconium oxide powder is mixed with cerium oxide, to Zirconium oxide powder into
Row is stablized, and reduces it and generates phase transformation in subsequent use process.
Further, in step b, acetic acid, lauric additional amount be respectively the 1% ~ 4% of mixed-powder weight, 1.5% ~
6%。
Further, in step b, vacuum drying temperature is 50oC ~ 65oC.
Further, the raw material for preparing high-strength abrasion-proof ceramic mobile phone shell includes by its parts by weight：Modified zirconia 70
Part, is gathered YK1.4 parts of dispersant B, 12 parts of hydroxyapatite, 2.5 parts of nano tin dioxide, 5 parts of polyethylene, 3.5 parts of random polypropylene
1.8 parts of ethylene glycol, 1.4 parts of stearic acid.
Another goal of the invention of the invention is to provide a kind of preparation method of high-strength abrasion-proof ceramic mobile phone shell, including
Following steps：
Step I is weighed the raw material for preparing high-strength abrasion-proof ceramic mobile phone shell by above-mentioned parts by weight；
Step II mixes the modified zirconia, hydroxyapatite, nano tin dioxide of above-mentioned parts by weight, and dehydrated alcohol is added, stirs
It mixes after mixing, dispersant B YK is added, continues to be stirred, obtains slurry；
The slurry that step II is obtained is returned polypropylene, polyethylene glycol and stearic acid to mix, in mixing by step III with polyethylene, nothing
Mixing in machine, obtains feeding；
Step IV, the feeding that step III is obtained are injection moulded, then are sintered 2 hours ~ 5 hours through 1100oC ~ 1600oC, are obtained
High-strength abrasion-proof ceramic mobile phone shell.Wherein, injection moulding is to the more demanding of ceramic particle, common Zirconium oxide powder because its from
The characteristics of body, is unable to satisfy demand, and the application reduces the agglomeration of Zirconium oxide powder, improves injection by organically-modified
The uniformity of the mobility of feeding and product in molding.
Further, in step III, the running parameter of mixer is：Temperature 200oC ~ 280oC, time 1.5 hours ~ 3 are small
When.
Further, in step IV, injection molding running parameter is：Injection temperature 180oC ~ 260oC, injection pressure
130MPa~160MPa。
It is an advantage of the invention that：
1. high-strength abrasion-proof ceramic mobile phone shell prepared by the present invention is using Zirconium oxide powder as main material, zirconia ceramics material
Have the characteristics that intensity is high, wearability is strong, heat-resist, inhibit crystal grain to grow up by the surface modification to Zirconium oxide powder,
The generation for dropping few agglomeration, improves the uniformity and stable product quality of phone housing；
2. high-strength abrasion-proof ceramic mobile phone shell prepared by the present invention passes through the surface modification and each component to Zirconium oxide powder
Between interaction may be implemented to prepare phone housing using injection molding mode, have preparation method simple, prepare work
The easy-operating feature of skill, and the phone housing hardness prepared is big, wearability is high, and large-scale production is suitble to promote.
Specific embodiment
The embodiment of the present invention is described in detail below, but what the present invention can be defined by the claims and cover
Multitude of different ways is implemented.
Embodiment 1
A kind of high-strength abrasion-proof ceramic mobile phone shell and preparation method thereof
The raw material for preparing high-strength abrasion-proof ceramic mobile phone shell includes：Modified zirconia 65kg, dispersant B YK0.5kg, hydroxyl phosphorus
Lime stone 14kg, nano tin dioxide 4.5kg, polyethylene 2kg, random polypropylene 2kg, polyethylene glycol 3kg, stearic acid 2.6kg；Its
In, the partial size of nano tin dioxide is 20nm ~ 40nm；The partial size of hydroxyapatite is 250 mesh ~ 325 mesh.
The preparation method of modified zirconia includes：
Zirconium oxide powder is mixed with ceria oxide powder, is put into vacuum oven by step a, and 50oC is 5 hours dry, is mixed
Close powder；Wherein, the weight ratio of cerium oxide and zirconium oxide is 1:100；
The obtained mixed-powder of step a is added in dehydrated alcohol by step b, and acetic acid, lauric acid, second are added after mixing
Sour, lauric additional amount is respectively the 4% of mixed-powder weight, 2%, ultrasonic disperse 5 minutes, is heated to 50oC while stirring,
It constant temperature 80 minutes, filters while hot, and washed with dehydrated alcohol, after 65oC is dried in vacuo, obtains modified zirconia.
High-strength abrasion-proof ceramic mobile phone shell, is prepared via a method which：
Step I is weighed the raw material for preparing high-strength abrasion-proof ceramic mobile phone shell by above-mentioned parts by weight；
Step II mixes the modified zirconia, hydroxyapatite, nano tin dioxide of above-mentioned parts by weight, and dehydrated alcohol is added, stirs
It mixes after mixing, dispersant B YK is added, continues to be stirred, obtains slurry；
The slurry that step II is obtained is returned polypropylene, polyethylene glycol and stearic acid to mix, in mixing by step III with polyethylene, nothing
The running parameter of mixing in machine, mixer is：Temperature 200oC the time 2.5 hours, obtains feeding；
Step IV, the feeding that step III is obtained are injection moulded, then are sintered 3 hours through 1600oC, and high-strength abrasion-proof ceramics are obtained
Phone housing；Wherein, injection molding running parameter is：Injection temperature 180oC, injection pressure 140MPa.
Embodiment 2
A kind of high-strength abrasion-proof ceramic mobile phone shell and preparation method thereof
The raw material for preparing high-strength abrasion-proof ceramic mobile phone shell includes：Modified zirconia 70kg, dispersant B YK0.2kg, hydroxyl phosphorus
Lime stone 16kg, nano tin dioxide 3.5kg, polyethylene 8kg, random polypropylene 1.5kg, polyethylene glycol 1kg, stearic acid 2.0kg；Its
In, the partial size of nano tin dioxide is 20nm ~ 40nm；The partial size of hydroxyapatite is 250 mesh ~ 325 mesh.
The preparation method of modified zirconia includes：
Zirconium oxide powder is mixed with ceria oxide powder, is put into vacuum oven by step a, and 55oC is 6 hours dry, is mixed
Close powder；Wherein, the weight ratio of cerium oxide and zirconium oxide is 2:100；
The obtained mixed-powder of step a is added in dehydrated alcohol by step b, and acetic acid, lauric acid, second are added after mixing
Sour, lauric additional amount is respectively the 2% of mixed-powder weight, 5%, ultrasonic disperse 12 minutes, is heated to 55oC while stirring,
It constant temperature 90 minutes, filters while hot, and washed with dehydrated alcohol, after 50oC is dried in vacuo, obtains modified zirconia.
High-strength abrasion-proof ceramic mobile phone shell, is prepared via a method which：
Step I is weighed the raw material for preparing high-strength abrasion-proof ceramic mobile phone shell by above-mentioned parts by weight；
Step II mixes the modified zirconia, hydroxyapatite, nano tin dioxide of above-mentioned parts by weight, and dehydrated alcohol is added, stirs
It mixes after mixing, dispersant B YK is added, continues to be stirred, obtains slurry；
The slurry that step II is obtained is returned polypropylene, polyethylene glycol and stearic acid to mix, in mixing by step III with polyethylene, nothing
The running parameter of mixing in machine, mixer is：Temperature 220oC the time 3 hours, obtains feeding；
Step IV, the feeding that step III is obtained are injection moulded, then are sintered 2 hours through 1500oC, and high-strength abrasion-proof ceramics are obtained
Phone housing；Wherein, injection molding running parameter is：Injection temperature 240oC, injection pressure 160MPa.
Embodiment 3
A kind of high-strength abrasion-proof ceramic mobile phone shell and preparation method thereof
The raw material for preparing high-strength abrasion-proof ceramic mobile phone shell includes：Modified zirconia 80kg, dispersant B YK2.5kg, hydroxyl phosphorus
Lime stone 10kg, nano tin dioxide 0.5kg, polyethylene 4kg, random polypropylene 5kg, polyethylene glycol 3.5kg, stearic acid 0.2kg；Its
In, the partial size of nano tin dioxide is 20nm ~ 40nm；The partial size of hydroxyapatite is 250 mesh ~ 325 mesh.
The preparation method of modified zirconia includes：
Zirconium oxide powder is mixed with ceria oxide powder, is put into vacuum oven by step a, and 60oC is 3 hours dry, is mixed
Close powder；Wherein, the weight ratio of cerium oxide and zirconium oxide is 5:100；
The obtained mixed-powder of step a is added in dehydrated alcohol by step b, and acetic acid, lauric acid, second are added after mixing
Sour, lauric additional amount is respectively the 3% of mixed-powder weight, 1.5%, ultrasonic disperse 7 minutes, is heated to 45o while stirring
C constant temperature 60 minutes, filters, and washed with dehydrated alcohol while hot, after 60oC is dried in vacuo, obtains modified zirconia.
High-strength abrasion-proof ceramic mobile phone shell, is prepared via a method which：
Step I is weighed the raw material for preparing high-strength abrasion-proof ceramic mobile phone shell by above-mentioned parts by weight；
Step II mixes the modified zirconia, hydroxyapatite, nano tin dioxide of above-mentioned parts by weight, and dehydrated alcohol is added, stirs
It mixes after mixing, dispersant B YK is added, continues to be stirred, obtains slurry；
The slurry that step II is obtained is returned polypropylene, polyethylene glycol and stearic acid to mix, in mixing by step III with polyethylene, nothing
The running parameter of mixing in machine, mixer is：Temperature 260oC the time 1.5 hours, obtains feeding；
Step IV, the feeding that step III is obtained are injection moulded, then are sintered 5 hours through 1200oC, and high-strength abrasion-proof ceramics are obtained
Phone housing；Wherein, injection molding running parameter is：Injection temperature 200oC, injection pressure 130MPa.
Embodiment 4
A kind of high-strength abrasion-proof ceramic mobile phone shell and preparation method thereof
The raw material for preparing high-strength abrasion-proof ceramic mobile phone shell includes：Modified zirconia 85kg, dispersant B YK2.0kg, hydroxyl phosphorus
Lime stone 8kg, nano tin dioxide 1.5kg, polyethylene 6kg, random polypropylene 5.5kg, polyethylene glycol 0.1kg, stearic acid 0.5kg；
Wherein, the partial size of nano tin dioxide is 20nm ~ 40nm；The partial size of hydroxyapatite is 250 mesh ~ 325 mesh.
The preparation method of modified zirconia includes：
Zirconium oxide powder is mixed with ceria oxide powder, is put into vacuum oven by step a, and 65oC is 4 hours dry, is mixed
Close powder；Wherein, the weight ratio of cerium oxide and zirconium oxide is 3:100；
The obtained mixed-powder of step a is added in dehydrated alcohol by step b, and acetic acid, lauric acid, second are added after mixing
Sour, lauric additional amount is respectively the 1% of mixed-powder weight, 6%, ultrasonic disperse 10 minutes, is heated to 60oC while stirring,
It constant temperature 45 minutes, filters while hot, and washed with dehydrated alcohol, after 55oC is dried in vacuo, obtains modified zirconia.
High-strength abrasion-proof ceramic mobile phone shell, is prepared via a method which：
Step I is weighed the raw material for preparing high-strength abrasion-proof ceramic mobile phone shell by above-mentioned parts by weight；
Step II mixes the modified zirconia, hydroxyapatite, nano tin dioxide of above-mentioned parts by weight, and dehydrated alcohol is added, stirs
It mixes after mixing, dispersant B YK is added, continues to be stirred, obtains slurry；
The slurry that step II is obtained is returned polypropylene, polyethylene glycol and stearic acid to mix, in mixing by step III with polyethylene, nothing
The running parameter of mixing in machine, mixer is：Temperature 280oC the time 2.0 hours, obtains feeding；
Step IV, the feeding that step III is obtained are injection moulded, then are sintered 4 hours through 1100oC, and high-strength abrasion-proof ceramics are obtained
Phone housing；Wherein, injection molding running parameter is：Injection temperature 260oC, injection pressure 150MPa.
Embodiment 5
A kind of high-strength abrasion-proof ceramic mobile phone shell and preparation method thereof
The raw material for preparing high-strength abrasion-proof ceramic mobile phone shell includes：Modified zirconia 70kg, dispersant B YK1.4kg, hydroxyl phosphorus
Lime stone 12kg, nano tin dioxide 2.5kg, polyethylene 5kg, random polypropylene 3.5kg, polyethylene glycol 1.8kg, stearic acid 1.4kg.
The preparation method of modified zirconia includes：
Zirconium oxide powder is mixed with ceria oxide powder, is put into vacuum oven by step a, and 58oC is 4.5 hours dry, is obtained
Mixed-powder；Wherein, the weight ratio of cerium oxide and zirconium oxide is 4:100；
The obtained mixed-powder of step a is added in dehydrated alcohol by step b, and acetic acid, lauric acid, second are added after mixing
Sour, lauric additional amount is respectively the 2.5% of mixed-powder weight, 3.5%, ultrasonic disperse 8 minutes, is heated to 52 while stirring
OC constant temperature 70 minutes, filters, and washed with dehydrated alcohol while hot, after 58oC is dried in vacuo, obtains modified zirconia.
High-strength abrasion-proof ceramic mobile phone shell, is prepared via a method which：
Step I is weighed the raw material for preparing high-strength abrasion-proof ceramic mobile phone shell by above-mentioned parts by weight；
Step II mixes the modified zirconia, hydroxyapatite, nano tin dioxide of above-mentioned parts by weight, and dehydrated alcohol is added, stirs
It mixes after mixing, dispersant B YK is added, continues to be stirred, obtains slurry；
The slurry that step II is obtained is returned polypropylene, polyethylene glycol and stearic acid to mix, in mixing by step III with polyethylene, nothing
The running parameter of mixing in machine, mixer is：Temperature 240oC the time 2.3 hours, obtains feeding；
Step IV, the feeding that step III is obtained are injection moulded, then are sintered 3.5 hours through 1350oC, and high-strength abrasion-proof pottery is obtained
Porcelain phone housing；Wherein, injection molding running parameter is：Injection temperature 220oC, injection pressure 145MPa.
Comparative example
A kind of high-strength abrasion-proof ceramic mobile phone shell and preparation method thereof
The raw material for preparing high-strength abrasion-proof ceramic mobile phone shell includes：Zirconium oxide 70kg, dispersant B YK1.4kg, hydroxyapatite
12kg, nano tin dioxide 2.5kg, polyethylene 5kg, random polypropylene 3.5kg, polyethylene glycol 1.8kg, stearic acid 1.4kg.
High-strength abrasion-proof ceramic mobile phone shell, is prepared via a method which：
Step I is weighed the raw material for preparing high-strength abrasion-proof ceramic mobile phone shell by above-mentioned parts by weight；
Step II mixes the zirconium oxide, hydroxyapatite, nano tin dioxide of above-mentioned parts by weight, and dehydrated alcohol is added, and stirring is mixed
After closing uniformly, dispersant B YK is added, continues to be stirred, obtains slurry；
The slurry that step II is obtained is returned polypropylene, polyethylene glycol and stearic acid to mix, in mixing by step III with polyethylene, nothing
The running parameter of mixing in machine, mixer is：Temperature 240oC the time 2.3 hours, obtains feeding；
Step IV, the feeding that step III is obtained are injection moulded, then are sintered 3.5 hours through 1350oC, and high-strength abrasion-proof pottery is obtained
Porcelain phone housing；Wherein, injection molding running parameter is：Injection temperature 220oC, injection pressure 145MPa.
Experimental example
Technical progress in order to further illustrate the present invention is now further illustrated using experiment.
Compare the high-strength abrasion-proof ceramic mobile phone shell produced of the embodiment of the present invention 1 ~ 5, experimental result under square one
As shown in table 1.
The high-strength abrasion-proof ceramic mobile phone shell test result of 1. embodiment 1 ~ 5 of table preparation
The experimental results showed that the hardness of high-strength abrasion-proof ceramic mobile phone shell prepared by the present invention 1369MPa ~ 1387MPa it
Between, hardness is big, wearability is good, and fracture toughness is in 16.8MPam1/2~17.8MPa·m1/2Between, the toughness of phone housing compared with
It is good, it is unlikely to deform.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of high-strength abrasion-proof ceramic mobile phone shell, which is characterized in that prepare the high-strength abrasion-proof ceramic mobile phone shell
Raw material includes by its parts by weight：65 parts ~ 85 parts of modified zirconia, YK0.2 parts ~ 2.5 parts of dispersant B, hydroxyapatite 8 parts ~ 16
Part, 0.5 part ~ 4.5 parts of nano tin dioxide, 2 parts ~ 8 parts of polyethylene, 1.5 parts ~ 5.5 parts of random polypropylene, 0.1 part of polyethylene glycol ~
3.5 parts, 0.2 part ~ 2.6 parts of stearic acid.
2. high-strength abrasion-proof ceramic mobile phone shell according to claim 1, which is characterized in that the grain of the nano tin dioxide
Diameter is 20nm ~ 60nm.
3. high-strength abrasion-proof ceramic mobile phone shell according to claim 1, which is characterized in that the grain of the hydroxyapatite
Diameter is 250 mesh ~ 325 mesh.
4. high-strength abrasion-proof ceramic mobile phone shell according to claim 1, which is characterized in that the system of the modified zirconia
Preparation Method includes：
Step, Zirconium oxide powder is mixed with ceria oxide powder, is put into vacuum oven, 50oC ~ 65oC dry 3 hours ~ 6
Hour, obtain mixed-powder；
Step, by stepObtained mixed-powder is added in dehydrated alcohol, and acetic acid, lauric acid are added after mixing, is surpassed
Sound disperses 5 minutes ~ 12 minutes, is heated to 45oC ~ 60oC while stirring, constant temperature 45 minutes ~ 90 minutes, filters while hot, and use nothing
Water-ethanol washing, after vacuum dried, obtains modified zirconia.
5. high-strength abrasion-proof ceramic mobile phone shell according to claim 4, which is characterized in that stepIn, the acetic acid,
Lauric additional amount is respectively the 1% ~ 4% of mixed-powder weight, 1.5% ~ 6%.
6. high-strength abrasion-proof ceramic mobile phone shell according to claim 4, which is characterized in that stepIn, the vacuum is dry
Dry temperature is 50oC ~ 65oC.
7. high-strength abrasion-proof ceramic mobile phone shell according to claim 1, which is characterized in that prepare the high-strength abrasion-proof
The raw material of ceramic mobile phone shell includes by its parts by weight：70 parts of modified zirconia, YK1.4 parts of dispersant B, hydroxyapatite 12
Part, 2.5 parts of nano tin dioxide, 5 parts of polyethylene, 3.5 parts of random polypropylene, 1.8 parts of polyethylene glycol, 1.4 parts of stearic acid.
8. it is a kind of according to claim 1 ~ any one of 7 described in high-strength abrasion-proof ceramic mobile phone shell preparation method, it is special
Sign is, includes the following steps：
Step, the raw material for preparing high-strength abrasion-proof ceramic mobile phone shell is weighed by the parts by weight；
Step, the modified zirconia, hydroxyapatite, nano tin dioxide of the parts by weight are mixed, dehydrated alcohol is added, stirs
It mixes after mixing, dispersant B YK is added, continues to be stirred, obtains slurry；
Step, by stepObtained slurry returns polypropylene, polyethylene glycol and stearic acid to mix with polyethylene, nothing, in mixer
Middle mixing, obtains feeding；
Step, by stepObtained feeding injection moulding, then be sintered 2 hours ~ 5 hours through 1100oC ~ 1600oC, obtain height
Intensity wear-resistant ceramic phone housing.
9. preparation method according to claim 8, which is characterized in that stepIn, the running parameter of the mixer is：
Temperature 200oC ~ 280oC, the time 1.5 hours ~ 3 hours.
10. preparation method according to claim 8, which is characterized in that stepIn, the injection molding running parameter
For：Injection temperature 180oC ~ 260oC, injection pressure 130MPa ~ 160MPa.
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Application publication date: 20181123 |