CN108483991A - A kind of nanometer of synthetic porcelain surface structure part and its preparation method and application - Google Patents
A kind of nanometer of synthetic porcelain surface structure part and its preparation method and application Download PDFInfo
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- CN108483991A CN108483991A CN201810297980.4A CN201810297980A CN108483991A CN 108483991 A CN108483991 A CN 108483991A CN 201810297980 A CN201810297980 A CN 201810297980A CN 108483991 A CN108483991 A CN 108483991A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/023—Chemical treatment
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- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B37/00—Cases
- G04B37/0008—Cases for pocket watches and wrist watches
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- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B37/00—Cases
- G04B37/22—Materials or processes of manufacturing pocket watch or wrist watch cases
- G04B37/225—Non-metallic cases
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- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G17/00—Structural details; Housings
- G04G17/08—Housings
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/0279—Improving the user comfort or ergonomics
- H04M1/0283—Improving the user comfort or ergonomics for providing a decorative aspect, e.g. customization of casings, exchangeable faceplate
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
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- Chemical Kinetics & Catalysis (AREA)
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- Structural Engineering (AREA)
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Abstract
The present invention provides a kind of nanometer of synthetic porcelain surface structure part and its preparation method and application.The structural member includes that surface of the sphericity more than 0.8 that weight percent is 40%~55% is modified spherical nano zircite,Surface of the sphericity that weight percent is 5%~30% more than 0.8 is modified the polyphenylene sulfide blended material matrix that spherical nano silicon oxide and weight percent are 30%~40%,It is molded by spherical powder and the mixing of macromolecule mixed matrix or after squeezing out and obtains this nanometer of synthetic porcelain surface structure part,Due to spherical nano zircite and silica,Nanometer synthetic porcelain surface structure part has the texture and light sensation of ceramics,And density is only the 3/5 of ceramics,Convenient for design of electronic products,Case hardness is less than ceramics,Conducive to machining,Significantly reduce manufacturing cost,It can be used for phone housing,Mobile phone center,Integrated mobile phone shell center,The preparation of the surface structures part such as watch rear cover and wrist-watch center.
Description
Technical field
The present invention relates to structural members and its preparing technical field, and in particular to consumer electronics shell mechanism part preparation field,
More particularly to nanometer synthetic porcelain surface structure part and its preparation method and application.
Background technology
With the fast development of the consumer electronics such as mobile phone, the structural members such as backboard (shell) of consumer electronics achieve considerable
Progress, also encounters new problem.Especially the 5G epoch in future propose the material of consumer electronics backboard (shell) harsher
It is required that.Conventional metals bring huge challenge due to its shield effectiveness, to Antenna Design, would be unavailable for 5G backboards (shell)
Manufacture, and plastics its inborn low-intensity, it is not wear-resisting limit its application in large scale screen, ultra-thin field, in addition with
It and consumes aesthetic raising, the backboard (shell) of traditional single metal shell and plastic material will also be difficult to move consumer.
Application No. is reports in 201510940002.3 patent to obtain feeding using Zirconium powder with binder mixing
The method for being injection moulded sintering afterwards prepares the phone housing of field of consumer electronics, and ZrO is utilized in the program2Ceramics have good
Hardness, high-wearing feature the characteristics of, but prepare phone housing and also have the disadvantage that：1) ceramic fracture toughness is still far below
Metal and plastic part, the large scales shock resistance drop performance such as mobile phone backboard (shell) of preparation is bad, is easily broken；2)ZrO2
The density of ceramics is up to 6.1g/cm3, the large scale parts quality of mobile phone (shell) backboard lays particular stress on, and is unfavorable for consumer electronics
Lightening development；3) ceramic shell color is single, can also deteriorate product according to a small amount of colorant is added in sintering procedure
Mechanical property, it is dull so as to cause ceramic (shell) backboard color.
On the other hand pure zirconia ceramics Mohs' hardness is only second to diamond close to 9, and grinding and polishing process is caused to be eaten
Knife amount is low, and cutting output is small, and difficulty of processing is big, and time-consuming for processing, and only zirconia ceramics rear cover machining cost accounts for entirely producing
The 2/3 of cost, and process is easily broken, yield is low.
Invention content
In view of this, in view of the deficiencies of the prior art, the present invention aims to provide a kind of nanometer of synthetic porcelain
Surface structure part.The structural member includes that the sphericity that weight percent is 40%~55% is spherical nano oxidized more than 0.8
Spherical nano silicon oxide of the sphericity that zirconium, weight percent are 5%~30% more than 0.8 and weight percent are 30%
~40% polymer blended material matrix of polyphenylene sulfide, wherein spherical nano zircite and spherical nano silicon oxide uniformly divide
It is distributed in the polymer blended material matrix of polyphenylene sulfide.
Preferably, further include polymeric liquid crystal copolymer in the polymer blended material matrix of polyphenylene sulfide.
Preferably, spherical nano zircite and silica powder surface are high by polyphenylene sulfide and liquid crystal after modification
Molecularly Imprinted Polymer mixture matrix wraps up.
Preferably, spherical nano zircite sphericity and the sphericity of spherical nano silicon oxide are all higher than 0.85.
Preferably, spherical nano zircite sphericity is more than 0.9, and the sphericity of spherical nano silicon oxide is more than 0.95.
Preferably, the D50 of spherical nano oxidized zirconium powder and silica is 150nm~250nm.
Preferably, spherical nano oxidized weight percent zirconia is 45%~50%, the weight of spherical nano silicon oxide
Percentage is 10%~25%.
To achieve the above object, the invention discloses the preparation methods of a kind of nanometer of synthetic porcelain surface structure part, including with
Lower step：
A) the spherical nano zircite of surface improver modification and spherical nano silicon oxide are used；
B) the spherical nano zircite by the modified obtained weight percent of step a) for 40%~55%, weight percent
The polyphenylene sulfide and liquid crystal polymer for being 30%~40% with weight percent than the spherical nano silicon oxide for 5%~30%
Polymer mixing or extrusion obtain feeding；
C) feeding that step b) is obtained is molded in injection molding machine and obtains the surface structure part.
Preferably, the surface modifier in step a) is one kind in stearic acid, ammonium stearate, silane coupling agent, surface
The quality of modifying agent accounts for the 0.3%~1% of spherical nano zircite and nano silicon oxide total amount；
Preferably, mixing or extrusion temperature are 285 DEG C~330 DEG C in step b)；
Preferably, the injection temperature in step c) be 290 DEG C~335 DEG C, inject front mold die cavity in negative pressure be-
0.07MPa~-0.09MPa, injection pressure are 150MPa~200MPa, dwell time 1s~2min.
The structural members such as a kind of phone housing, mobile phone center, integrated mobile phone shell center, watch rear cover and wrist-watch center are
Above-mentioned nanometer synthetic porcelain surface structure part.
Beneficial effects of the present invention：The present invention provides nanometer synthetic porcelain surface structure part and its preparation method and application.It should
Structural member includes that surface of the sphericity more than 0.8 that weight percent is 40%~55% is modified spherical nano zircite, again
The sphericity that amount percentage is 5%~30% is modified spherical nano silicon oxide more than 0.8 surface and weight percent is
30%~40% polyphenylene sulfide blended material material matrix will be molded after spherical powder and the mixing of macromolecule mixed matrix or extrusion
This nanometer of synthetic porcelain surface structure part is obtained, due to spherical nano zircite and silica, nanometer synthetic porcelain surface structure part
Texture with ceramics and optical effect, and density is only the 3/5 of ceramics, is convenient for design of electronic products, case hardness is less than pottery
Porcelain is conducive to dimensioned, significantly reduces manufacturing cost, can be used in phone housing, mobile phone center, integrated mobile phone shell
The preparation of the surface structures parts such as frame, watch rear cover and wrist-watch center.
Description of the drawings
Fig. 1 is the embodiment preparation method schematic diagram of nanometer synthetic porcelain surface structure part.
Specific implementation mode
Present invention is further described in detail below, wherein used spherical nano zircite and silica are to use
The commercially available nano powder that prepared by the hydro-thermal method of the prior art or prepared by sol-gel method, other raw materials and equipment be also it is commercially available,
Do not specially require.It is understood that specific embodiment described herein is only used for explaining related invention, rather than to the hair
Bright restriction.
The main purpose of the present invention is to provide a kind of nanometer of synthetic porcelain surface structure parts.The structural member includes that weight percent is
40%~55% sphericity is big for 5%~30% sphericity more than 0.8 spherical nano zircite, weight percent
Spherical nano silicon oxide and weight percent in 0.8 is mixed for 30%~40% polyphenylene sulfide and polymeric liquid crystal copolymer
Material matrix is closed, wherein spherical nano zircite and spherical nano silicon oxide are uniformly distributed in polyphenylene sulfide and liquid crystal polymer
In polymer composition matrix.In the present embodiment in order to reduce spherical nano zircite and silica powder surface energy, improve
With the package effect of macromolecule mixture, a kind of surface modifying agent in stearic acid, ammonium stearate, silane coupling agent is used
Such ball shaped nano zirconium oxide and silica, method of modifying are method of modifying commonly used in the prior art, and preferred surface is modified
The quality of agent accounts for the 0.3%~1% of spherical nano zircite and nano silicon oxide total amount, and wherein silane coupling agent is existing skill
Common silane coupling agent in art, preferably γ-aminopropyl triethoxysilane, γ-glycidyl ether oxygen propyl trimethoxy
One kind in base silane and β-(3,4- epoxycyclohexylethyl) trimethoxy silane.Spherical nanometer after modification
Zirconium oxide and nano silicon oxide and polyphenylene sulfide and polymeric liquid crystal copolymer mixture matrix are in mixer mixing or extrusion
Package is squeezed out in machine and obtains feeding, and smelting temperature is 285 DEG C~330 DEG C in the present embodiment, and mixing time is 1~4h.At this
It, can be to use negative pressure mixing technology in internal mixing pass, i.e., in internal mixing pass in order to improve the uniformity of mixing feeding in embodiment
Mixing chamber is evacuated to negative pressure, ensures that organic matter decomposition gas physical efficiency excludes in time in internal mixing pass.Or using extruder at 285 DEG C
It is squeezed out repeatedly within the temperature range of~330 DEG C, extrusion number preferred in this embodiment is 5~10 times.Feeding will be obtained to exist
Injection molding obtains this nanometer of synthetic porcelain surface structure part in injection molding machine.In the present embodiment in order to improve mold filling rate, reduce
Mold is evacuated to negative pressure state by injection defect in advance using negative pressure Shooting Technique before injection molding, improve injection molding yield, preferred to note
It is 290 DEG C~335 DEG C to mould temperature, and it is -0.07MPa~-0.09MPa that negative pressure is taken out in injection front mold die cavity, is penetrated in injection moulding process
Glue laminated power is 150MPa~200MPa, dwell time 1s~2min.It in the present embodiment, can be according to requiring pair after the completion of injection molding
It carries out surface C NC processing and Yan Mo Pao Guang Alto mechanical process in the prior art, reaches minute surface or other demands
Grain effect meets diversified demand.
Further spherical nano zircite sphericity and the sphericity of spherical nano silicon oxide are big in the present embodiment
In 0.85.
Further spherical nano zircite sphericity is more than 0.9 in the present embodiment, the ball of spherical nano silicon oxide
Degree is more than 0.95.
The D50 of further spherical nano oxidized zirconium powder and silica is 150nm~250nm in the present embodiment.
Further spherical nano oxidized weight percent zirconia is 45%~50% in the present embodiment, spherical nanometer
The weight percent of silica is 10%~25%.
In order to prepare the appearances such as phone housing, mobile phone center, integrated mobile phone shell center, watch rear cover and wrist-watch center
Structural member, first feeding is prepared in the feeding preparation method of nanometer synthetic porcelain surface structure part as stated above, issues outside mobile phone
The injection mold of the surface structures parts such as shell, mobile phone center, integrated mobile phone shell center, watch rear cover and wrist-watch center, then
Injection molding obtains the structural members such as phone housing, center, similarly in order to improve yield rate, mold be seal take out negative pressure mold.
Then it is molded after obtaining phone housing, mobile phone center, integrated mobile phone shell center, wrist-watch by above-mentioned technique using different molds
Lid and the surface structures part such as wrist-watch center, after according to requiring machining surface processing to reach the surface effects such as minute surface, texture.
It is the embodiment of the present invention below：
Embodiment 1
The preparation process of 5 inches of phone housings
It weighs 70g stearic acid to be added in the Ball-stirring mill with zirconia ball, adds 3.5kg ethyl alcohol, then weigh in 4kg
It is the zirconium oxide that 150nm sphericities are more than 0.8 to be worth grain size D50, and 3kg median particle diameters D50 is the oxygen that 250nm sphericities are more than 0.8
SiClx and be respectively added slowly in Ball-stirring mill stir 2h after in an oven drying obtain stearic acid modified spherical zirconium oxide and oxygen
SiClx.
Weigh 4kg polyphenylene sulfides be added in mixer be warming up to 315 DEG C so that it is melted after by stearic acid modified spherical oxygen
Change zirconium to be added in mixer several times with silica, is then closed mixer and is evacuated to -0.06MPa after 330 DEG C of mixing 1h
Cooling discharge simultaneously is crushed to obtain feeding.
Feeding is packed into the hopper of injection molding machine, 5 inches of phone housing mould cavities are evacuated to -0.07MPa, are concurrently set
Mould temperature temperature is 180 DEG C, sets injection molding machine barrel temperature as 335 DEG C, injection pressure is molded for 150MPa, is demoulded after pressurize 1s.
Then phone housing is machined away in the CNC machine that 5 axis link and is polished to mirror effect on flexible throwing machine again after surplus
Phone housing is arrived to obtain the final product.
It is tested by drainage, the density of the phone housing is 3.21g/cm3, and identical zirconia ceramics shell density
For 6.1g/cm3, phone housing range estimation has mirror effect, the optics texture with ceramics, the case hardness steel wire lump of resistance to 1um
9000 scouring no markings.
Embodiment 2
The preparation process of 1.4 inches of watch rear covers
It weighs 1g ammonium stearates to be added in the ball grinder with zirconia ball, adds 400g ethyl alcohol, then weigh 306g
Median particle diameter D50 is the zirconium oxide that 250nm sphericities are more than 0.85, and 34g median particle diameters D50 is that 250nm sphericities are more than 0.85
Silica and be separately added into ball grinder on ball mill grind 6h after in an oven drying obtain ammonium stearate be modified class ball
Shape zirconium oxide and silica.
It weighs 200g polyphenylene sulfides and 26g polymeric liquid crystal copolymers and is added and be warming up to 280 DEG C in mixer and make its thawing
Stearic acid modified spherical zirconium oxide and silica are added in mixer several times afterwards, be then closed mixer be evacuated to-
0.06MPa cooling discharge and is crushed to obtain feeding after 285 DEG C of mixing 4h.
Feeding is packed into the hopper of injection molding machine, 1.4 inches of watch rear cover mould cavities are evacuated to -0.09MPa, are set simultaneously
Cover half temperature temperature is 180 DEG C, sets injection molding machine barrel temperature as 290 DEG C, injection pressure is molded for 200MPa, is taken off after pressurize 2min
Mould.Then watch rear cover is machined away in the CNC machine that 5 axis link and is polished to minute surface effect after surplus on flexible throwing machine again
Fruit arrives phone housing to obtain the final product.
It is tested by drainage, the density of the watch rear cover is 3.17g/cm3, and density is much smaller than outside zirconia ceramics wrist-watch
Shell, range estimation have good minute surface refractive power effect, identical as the optics texture of ceramics, the case hardness steel wire lump of resistance to 1um 8500 times
Clean no marking.
Embodiment 3
The preparation process of 5 inches of mobile phone centers
It weighs 50g γ-aminopropyl triethoxysilane to be added in the Ball-stirring mill with zirconia ball, adds 5kg second
Alcohol, 1kg deionized waters, it is the zirconium oxide that 200nm sphericities are more than 0.9 then to weigh 6.43kg median particle diameters D50, in 3.57kg
Value grain size D50 is silica of the 200nm sphericities more than 0.95 and is respectively added slowly in Ball-stirring mill after stirring 2h in an oven
Drying obtains silane coupler modified spherical zirconium oxide and silica.
Weigh after 1.18kg polyphenylene sulfides and 3.1kg polymeric liquid crystal copolymers with obtain it is silane coupler modified spherical
Zirconium oxide is added in batch mixer with silica and is uniformly mixed, and extruder temperature is risen to 330 DEG C, squeezes out 10 repeatedly in an extruder
Silk is led after secondary be cut into pellet obtain feeding.
Feeding is packed into the hopper of injection molding machine, 5 inches of mobile phone center mould cavities are evacuated to -0.08MPa, are passed through simultaneously
Die heater sets mold temperature as 180 DEG C, sets injection molding machine barrel temperature as 335 DEG C, injection pressure is molded for 180MPa, pressurize
It is demoulded after 30s.Then mobile phone center is machined away in the CNC machine that 5 axis link after surplus again in flexible throwing machine by appearance
Mirror polish arrives mobile phone center to mirror effect.
It is tested by drainage, the density of the mobile phone center is 3.27g/cm3, and density is much smaller than outside zirconia ceramics wrist-watch
Shell, range estimation have good minute surface refractive power effect, identical as the optics texture of ceramics, the case hardness steel wire lump of resistance to 1um 10000 times
Clean no marking.
Embodiment 4
The preparation process of 5 inches of integrated mobile phone center shells
It weighs 50g γ-glycidyl ether oxygen propyl trimethoxy silicane to be added in the Ball-stirring mill with zirconia ball, then adds
Entering 5kg ethyl alcohol, 1kg deionized waters, it is the zirconium oxide that 200nm sphericities are more than 0.9 then to weigh 8.33kg median particle diameters D50,
1.67kg median particle diameters D50 is silica of the 200nm sphericities more than 0.95 and is respectively added slowly to after stirring 2h in Ball-stirring mill
Drying obtains silane coupler modified spherical zirconium oxide and silica in an oven.
Weigh after 4.0kg polyphenylene sulfides and 2.67kg polymeric liquid crystal copolymers with obtain it is silane coupler modified spherical
Zirconium oxide is added in batch mixer with silica and is uniformly mixed, and extruder temperature is risen to 300 DEG C, squeezes out 5 repeatedly in an extruder
Silk is led after secondary be cut into pellet obtain feeding.
Feeding is packed into the hopper of injection molding machine, 5 inches of integrated mobile phone center outer casing mold die cavitys are evacuated to-
0.08MPa, while setting mold temperature as 180 DEG C by die heater, sets injection molding machine barrel temperature as 305 DEG C, injection pressure
It is molded for 180MPa, is demoulded after pressurize 40s.Then mobile phone center is machined away in the CNC machine that 5 axis link after surplus again
Outer surface is polished to mirror effect in flexible throwing machine and obtains the integrated mobile phone center shell.
It is tested by drainage, the density of the integrated mobile phone center shell is 3.23g/cm3, and density is much smaller than zirconium oxide
Ceramic wristwatch shell, range estimation have good minute surface refractive power effect, identical as the optics texture of ceramics, the case hardness steel of resistance to 1um
10000 scouring no markings of pompon.
Embodiment 5
The preparation process of 1.4 inches of wrist-watch centers
5g β-(3,4- epoxycyclohexylethyl) trimethoxy silane is weighed to be added in the ball grinder with zirconia ball, then
800g ethyl alcohol is added, 200g deionized waters, it is the oxidation that 200nm sphericities are more than 0.9 then to weigh 770g median particle diameters D50
Zirconium, 230g median particle diameters D50 are that silica and be separately added into ball grinder of the 200nm sphericities more than 0.95 is ground on ball mill
Drying obtains silane coupler modified spherical zirconium oxide and silica in an oven after mill 6h.
It weighs to be added after 323g polyphenylene sulfides and 215g polymeric liquid crystal copolymers and is warming up to 300 DEG C in mixer it is made to melt
Silane coupler modified spherical zirconium oxide and silica are added in mixer several times after change, mixer is then closed and takes out very
It is empty cooling discharge and to be crushed to obtain feeding after 305 DEG C of mixing 2h to -0.06MPa.
Feeding is packed into the hopper of injection molding machine, 1.4 inches of wrist-watch center mould cavities are evacuated to -0.08MPa, led to simultaneously
It crosses die heater and sets mold temperature as 180 DEG C, set injection molding machine barrel temperature as 310 DEG C, injection pressure is molded for 180MPa, protects
It is demoulded after pressure 5s.Then wrist-watch center is machined away in the CNC machine that 5 axis link after surplus again in flexible throwing machine by appearance
Mirror polish obtains the wrist-watch center to mirror effect.
It is tested by drainage, the density of the wrist-watch center is 3.24g/cm3, and density is much smaller than outside zirconia ceramics wrist-watch
Shell, range estimation have good minute surface refractive power effect, identical as the optics texture of ceramics, the case hardness steel wire lump of resistance to 1um 10000 times
Clean no marking.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.People in the art
Member should be appreciated that invention scope involved in the application, however it is not limited to technology made of the specific combination of above-mentioned technical characteristic
Scheme, while should also cover in the case where not departing from the inventive concept, it is carried out by above-mentioned technical characteristic or its equivalent feature
Other technical solutions of arbitrary combination and formation.Such as features described above has similar work(with (but not limited to) disclosed herein
Can technical characteristic replaced mutually and the technical solution that is formed.
Claims (10)
1. a kind of nanometer of synthetic porcelain surface structure part, it is characterised in that：The sphericity for being 40%~55% including weight percent
The sphericity that spherical nano zircite, weight percent more than 0.8 are 5%~30% is more than 0.8 spherical nanometer
The polymer blended material matrix of polyphenylene sulfide that silica and weight percent are 30%~40%, wherein spherical nano zircite
It is uniformly distributed in the polymer blended material matrix of polyphenylene sulfide with spherical nano silicon oxide.
2. according to claim 1 nanometer of synthetic porcelain surface structure part, it is characterised in that：The polymer blended material of polyphenylene sulfide
It further include polymeric liquid crystal copolymer in matrix.
3. according to claim 2 nanometer of synthetic porcelain surface structure part, it is characterised in that：Spherical nano zircite and oxygen
Change silicon powder surface to be wrapped up by polyphenylene sulfide and polymeric liquid crystal copolymer blend composition matrix after modification.
4. according to claim 3 nanometer of synthetic porcelain surface structure part, it is characterised in that：Spherical nano zircite sphericity
It is all higher than 0.85 with the sphericity of spherical nano silicon oxide.
5. according to claim 4 nanometer of synthetic porcelain surface structure part, it is characterised in that：Spherical nano zircite sphericity
More than 0.9, the sphericity of spherical nano silicon oxide is more than 0.95.
6. according to claim 5 nanometer of synthetic porcelain surface structure part, it is characterised in that：Spherical nano oxidized zirconium powder and
The D50 of silica is 150nm~250nm.
7. according to claim 6 nanometer of synthetic porcelain surface structure part, it is characterised in that：Spherical nano zircite weight
Percentage is 45%~50%, and the weight percent of spherical nano silicon oxide is 10%~25%.
8. the preparation method of a kind of nanometer of synthetic porcelain surface structure part, which is characterized in that include the following steps：
A) the spherical nano zircite of surface improver modification and spherical nano silicon oxide are used；
B) step a) is modified spherical nano zircite, weight percent that obtained weight percent is 40%~55% is
5%~30% spherical nano silicon oxide polymerize with weight percent for 30%~40% polyphenylene sulfide and liquid crystal polymer
Object mixing or extrusion obtain feeding；
C) feeding that step b) is obtained is molded in injection molding machine and obtains the surface structure part.
9. the preparation method of according to claim 8 nanometer of synthetic porcelain surface structure part, it is characterised in that：
Surface modifier in step a) is one kind in stearic acid, ammonium stearate, silane coupling agent, the quality of surface modifier
Account for the 0.3%~1% of spherical nano zircite and nano silicon oxide total amount；
Mixing or extrusion temperature are 285 DEG C~330 DEG C in step b)；
Injection temperature in step c) is 290 DEG C~335 DEG C, inject negative pressure in front mold die cavity be -0.07MPa~-
0.09MPa, injection pressure are 150MPa~200MPa, dwell time 1s~2min.
10. a kind of phone housing, mobile phone center, integrated mobile phone shell center, watch rear cover and wrist-watch center, it is characterised in that
Nanometer synthetic porcelain surface structure part described in any claim for claim 1~7.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113402202A (en) * | 2021-06-03 | 2021-09-17 | Oppo广东移动通信有限公司 | Method for preparing shell assembly, shell assembly and electronic device |
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