CN107346077A - A kind of side entrance back module - Google Patents
A kind of side entrance back module Download PDFInfo
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- CN107346077A CN107346077A CN201710661882.XA CN201710661882A CN107346077A CN 107346077 A CN107346077 A CN 107346077A CN 201710661882 A CN201710661882 A CN 201710661882A CN 107346077 A CN107346077 A CN 107346077A
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- Prior art keywords
- backboard
- side entrance
- back module
- entrance back
- temperature
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
- G02F1/133317—Intermediate frames, e.g. between backlight housing and front frame
Abstract
The invention discloses a kind of side entrance back module, including backboard, luminescence component and center, the backboard has spill receiving space, the center is arranged on the outside of backboard, reflector plate, light guide plate and blooming piece are sequentially provided with from top to bottom in the backboard receiving space, the incidence surface of luminescence component light-emitting window towards the light guide plate is arranged on the backlight module side, it is characterized in that, the center and backboard are made up of identical radiating plastic material, and the radiating plastic material is made up of the raw material of following percentage by weight：80 90% host plastic, 8 18% filler, 0.2 1% three-dimensional grapheme, 0.5~5% dispersant and 0.2~0.4% antioxidant.Center and backboard in backlight module of the present invention are made by radiating plastic material, have advantages below：Radiating is uniform, and the temperature of LED reduces, and can reduce the damage possibility of LED, scorching hot point can be avoided, so as to reduce part local deformation caused by high temperature.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of side entrance back module.
Background technology
Liquid crystal display device is widely used in mobile phone, notes because having the characteristics that radiation is low, overall frivolous low with power consumption
In the product such as this computer and television set.However, because the liquid crystal panel of liquid crystal display device does not have the characteristics of luminescence in itself, so
Need to generally backlight module be coordinated to can be only achieved display effect.
At present, backlight module is different according to the position that light source is set, and mainly has down straight aphototropism mode set and side entrance back
Module.The light source of side entrance back module is positioned over the side of backlight module or relative both sides, because its area of dissipation is limited
Cause radiating effect poor.In order to improve heat dispersion generally by the metalwork using perfect heat-dissipatings such as aluminium, but metal has
The machine-shaping time is long, the single not inferior position such as freely of structure.
The content of the invention
The defects of in order to make up prior art, the present invention provide a kind of side entrance back module.
The technical problems to be solved by the invention are achieved by the following technical programs：
A kind of side entrance back module, including backboard, luminescence component and center, the backboard has spill receiving space, described
Center is arranged on the outside of backboard, and reflector plate, light guide plate and blooming piece are sequentially provided with from top to bottom in the backboard receiving space,
The incidence surface of luminescence component light-emitting window towards the light guide plate is arranged on the backlight module side, it is characterised in that institute
State center and backboard to be made up of identical radiating plastic material, the raw material system of the plastic material by following percentage by weight that radiate
Into：80-90% host plastic, 8-18% filler, 0.2-1% three-dimensional grapheme, 0.5~5% dispersant and 0.2~
0.4% antioxidant.
Further, the luminescence component includes FPC and some LEDs being pasted onto on the FPC, each LED
Lamp electrically connects with FPC.
Further, the host plastic is PC, PPA, PET, in PPS, PA6, PA66, LCP, TPE, PP and PEEK
It is a kind of.
Further, the filler is AlN, SiC, Al2O3, fibrous high heat conduction carbon dust and flakey high heat conduction carbon dust
In one kind.
Further, the preparation method of the three-dimensional grapheme is：
S1：Prepare graphene oxide；
S2：Graphene oxide is modified processing, obtains amidized graphene oxide；
S3：Three-dimensional grapheme is prepared using gel method.
Further, step S1 is：2.0 ~ 5.0g graphite powders and 1.0 ~ 2.0g sodium nitrate is taken to be added to 46 ~ 60ml mass
Fraction is in 98% concentrated sulfuric acid, and mixture is placed in into 30 ~ 60min of stirring under condition of ice bath；Weigh 6.0 ~ 15.0g potassium permanganate
It is slowly added in above-mentioned mixed liquor, under the conditions of 0 ~ 5 DEG C, quickly stirs 2 ~ 5h；Mixture is moved into 35 DEG C of tepidariums and continued
Stir 3 ~ 6h；90 ~ 150ml distilled water is slowly added dropwise in mixture, and controls temperature at 98 DEG C, keeps 30min ~ 60min；It is cold
But room temperature is arrived, the hydrogen peroxide that mass fraction is 30% is added and removes excessive potassium permanganate untill mixture is changed into glassy yellow；
Add and 150 ~ 300ml distilled water dilutings and filter while hot, successively using hydrochloric acid that molar concentration is 0.01mol/L, absolute ethyl alcohol,
Until sulfate radical-free ion in filtrate, solution is in neutrality, and graphene oxide is obtained after 60 DEG C of oven for drying for deionized water washing；
Step S2 is：Add graphene oxide into the aqueous solution, be ultrasonically treated 30 ~ 60min, then add amine reducing agent,
At a temperature of 30 ~ 100 DEG C, 6 ~ 24h of mechanic whirl-nett reaction, cleaning, dry, prepare amidized graphene oxide.
The present invention also provides the preparation method of above-mentioned radiating plastic material, comprises the following steps：
S1：Corresponding each raw material is weighed by above-mentioned percentage by weight；
S2：Host plastic is heat-treated, obtains heat treatment material；
S3：Filler addition grinder is ground to obtain Nano filling；
S4：The heat treatment material that three-dimensional grapheme, dispersant, antioxidant, step S2 are obtained and the nanometer that step S3 is obtained are filled out
Expect to stir to obtain compound in closed agitator high speed；
S5：The obtained compounds of step S4 are put into double screw extruder and carry out extruding pelletization；
S6：Extruded material in step S5 is sent into pelleter pelletizing, obtains pellet, cooling and shaping after pellet is dried.
Further, the temperature of the heat treatment is 110-130 DEG C, time 0.5-1.5h.
Further, the rotating speed of the high-speed stirred is 15000rpm, and the time is more than 15min.
Further, the rotating speed of double screw extruder is 5~40rpm, and feeding section temperature is 220 DEG C~230 DEG C, compression section
Temperature is 230 DEG C~240 DEG C, and metering section temperature is 240 DEG C~250 DEG C, and machine neck temperature is 250 DEG C~260 DEG C, die temperature
250 DEG C~260 DEG C；Pelleter rotating speed is 2-20rpm.
The present invention has the advantages that：
The radiating plastic material of the present invention adds filler and three-dimensional grapheme, prepared radiating plastic cement simultaneously in host plastic
Material conducts heat rate is high, and the center and backboard in backlight module of the present invention are made by above-mentioned radiating plastic material, have following excellent
Point：（1）Radiating is uniform, and the temperature of LED reduces, and can reduce the damage possibility of LED, scorching hot point can be avoided, so as to reduce
Part local deformation caused by high temperature；（2）In light weight, processing and forming is convenient, without secondary operation, can shorten the production cycle
Increase production capacity, while insulation processing need not be done, production cost can be effectively reduced；（3）The product design free degree is high, radiating
Plastic material not only has the heat transfer performance of metal and ceramics, while also retains common plasticses in design, performance and cost
Other advantages of aspect.
Embodiment
With reference to embodiment, the present invention will be described in detail, and embodiment is only the preferred embodiment of the present invention,
It is not limitation of the invention.
A kind of side entrance back module, including backboard, luminescence component and center, the backboard have spill receiving space,
The center is arranged on the outside of backboard, and reflector plate, light guide plate and optics are sequentially provided with from top to bottom in the backboard receiving space
Diaphragm, the incidence surface of luminescence component light-emitting window towards the light guide plate are arranged on the backlight module side, the center
It is made up with backboard of identical radiating plastic material.
In the present invention, radiating plastic material is made up of the following raw material：Host plastic, filler, three-dimensional grapheme, dispersant,
And antioxidant.
As host plastic, its percentage by weight is 80-90%, it is preferable that its percentage by weight is 85-88%.The master
Body plastics are PC, PPA, PET, one kind in PPS, PA6, PA66, LCP, TPE, PP and PEEK, but are not limited to this.
As filler, its percentage by weight is 8-18%, it is preferable that its percentage by weight is 12-15%.The filler is
AlN、SiC、Al2O3, one kind in fibrous high heat conduction carbon dust and flakey high heat conduction carbon dust, but be not limited to this.
As three-dimensional grapheme, its percentage by weight is 0.2-1%, it is preferable that its percentage by weight is 0.4-0.6%.Hair
A person of good sense has found that more than 1%, heat-conducting effect is not obviously improved the percentage by weight of three-dimensional grapheme, and can increase life by research
Produce cost.
The preparation method of the three-dimensional grapheme is：
S1：Prepare graphene oxide：2.0 ~ 5.0g graphite powders and 1.0 ~ 2.0g sodium nitrate is taken to be added to 46 ~ 60ml mass fractions
For in 98% concentrated sulfuric acid, mixture is placed in into 30 ~ 60min of stirring under condition of ice bath；It is slow to weigh 6.0 ~ 15.0g potassium permanganate
Add in above-mentioned mixed liquor, under the conditions of 0 ~ 5 DEG C, quickly stir 2 ~ 5h；Mixture is moved into 35 DEG C of tepidariums and continues stirring 3
~6h；90 ~ 150ml distilled water is slowly added dropwise in mixture, and controls temperature at 98 DEG C, keeps 30min ~ 60min；It is cooled to
Room temperature, add the hydrogen peroxide that mass fraction is 30% and remove excessive potassium permanganate untill mixture is changed into glassy yellow；Add
150 ~ 300ml distilled water dilutings simultaneously filter while hot, the use of molar concentration is successively 0.01mol/L hydrochloric acid, absolute ethyl alcohol, go from
For sub- water washing until sulfate radical-free ion in filtrate, solution is in neutrality, and graphene oxide is obtained after 60 DEG C of oven for drying；
S2：Graphene oxide is modified processing, obtains amidized graphene oxide：Add graphene oxide into water-soluble
In liquid, 30 ~ 60min is ultrasonically treated, then adds amine reducing agent, at a temperature of 30 ~ 100 DEG C, mechanic whirl-nett reaction 6 ~
24h, cleaning, dry, prepare amidized graphene oxide；Wherein, the amine reducing agent is ethylenediamine, propane diamine, fourth
One kind in diamines, p-phenylenediamine.
S3：Three-dimensional grapheme is prepared using gel method.
Graphene is carbon atom with sp2The chip architecture that hydridization is formed, because it has big specific surface area, good electric conductivity
Can, good physical and chemical stability, high light transmission rate and high mechanical strength, since the pass for being found just to cause people
Note.But graphene also has two big weak points, graphene first does not have band gap in itself, and this is largely limited
Application of the graphene on electricity device.Secondly, the surface of graphene does not have activating functional group, is unfavorable for and other materials
Compound, this also have impact on research and extension of the graphene in many application fields.Caused by three-dimensional grapheme is graphene self assembly,
Under conditions of the excellent thermal conductivity of graphene and superhigh specific surface area is retained, because of its three-dimensional cross-linked network structure, and prop up certainly
The characteristics of support, so as to prevent the reunion of itself well.Three-dimensional grapheme prepared by the present invention is answered with host plastic
Close, the interface cohesion of three-dimensional grapheme and host plastic can be improved, improve the conductive and mechanical properties of radiating plastic material.
Inventor is had found by numerous studies, and filler is added directly into plastics and mixed, and particle is easily reunited,
It is difficult to be uniformly dispersed in host plastic, makes radiating plastic material structure that there is uncertainty, and in order that radiating plastic material tool
There is higher thermal conductivity, often the loading of filler is larger, and filler and three-dimensional grapheme compatibility are added in host plastic,
Due to being cooperated between its composition, the effect of significant Synergistic is generated, on the premise of loading is small, can strengthen and fill out
Expect the binding ability between host plastic, phenomena such as preventing from ftractureing, reunite, the good dispersion of filler and three-dimensional grapheme, fill out
Fill uniformly, be distributed in host plastic in spatial network shape, advantageously in the formation of space effective passage, improve heat conduction
Efficiency, and can effectively reduce cost, while ensure the compatibility of filler and host plastic.
As dispersant, its percentage by weight is 0.5~5%.The present invention is not particularly limited to the species of dispersant, is made
Can be polyvinylpyrrolidone for citing.
As antioxidant, mainly for preventing host plastic from phenomena such as oxidative degradation occur in process, its weight hundred
Divide than being 0.2~0.4%.The present invention is not particularly limited to the species of dispersant, as an example, antioxidant 1010,1098,
168th, one kind in ST-3610, P262, B-1036.
Embodiment 1
A kind of side entrance back module, including backboard, luminescence component and center, the backboard has spill receiving space, described
Center is arranged on the outside of backboard, and reflector plate, light guide plate and blooming piece are sequentially provided with from top to bottom in the backboard receiving space,
The incidence surface of luminescence component light-emitting window towards the light guide plate is arranged on the backlight module side, the luminescence component bag
FPC and some LEDs being pasted onto on the FPC are included, each LED electrically connects with FPC；The center and backboard by
Identical radiating plastic material is made.
The radiating plastic material is made up of the raw material of following percentage by weight：85% host plastic, 12% filler,
0.7% three-dimensional grapheme, 2% dispersant and 0.3% antioxidant；Wherein, the host plastic is PC；The filler is
AlN；
The preparation method of the radiating plastic material, comprises the following steps：
S1：Corresponding each raw material is weighed by above-mentioned percentage by weight；
S2：Host plastic is heat-treated, obtains heat treatment material；The temperature of the heat treatment is 120 DEG C, time 1h；
S3：Filler addition grinder is ground to obtain Nano filling；
S4：The heat treatment material that three-dimensional grapheme, dispersant, antioxidant, step S2 are obtained and the nanometer that step S3 is obtained are filled out
Expect to stir to obtain compound in closed agitator high speed；The rotating speed of the high-speed stirred is 15000rpm, the time be 15min with
On；
S5：The obtained compounds of step S4 are put into double screw extruder and carry out extruding pelletization；The rotating speed of double screw extruder
For 5~40 rpm, first operation to stabilization, after the material for having melting is from head extrusion, is further continued for improving under relatively low rotating speed
Rotating speed；Feeding section temperature is 220 DEG C~230 DEG C, and compression section temperature is 230 DEG C~240 DEG C, and metering section temperature is 240 DEG C~250
DEG C, machine neck temperature is 250 DEG C~260 DEG C, 250 DEG C~260 DEG C of die temperature；
S6：Extruded material in step S5 is sent into pelleter pelletizing, obtains pellet, cooling and shaping after pellet is dried；Wherein,
Pelleter rotating speed is 12rpm.
Embodiment 2
A kind of side entrance back module, including backboard, luminescence component and center, the backboard has spill receiving space, described
Center is arranged on the outside of backboard, and reflector plate, light guide plate and blooming piece are sequentially provided with from top to bottom in the backboard receiving space,
The incidence surface of luminescence component light-emitting window towards the light guide plate is arranged on the backlight module side, the luminescence component bag
FPC and some LEDs being pasted onto on the FPC are included, each LED electrically connects with FPC；The center and backboard by
Identical radiating plastic material is made.
It is described radiating plastic material by the raw material of following percentage by weight be made 80% host plastic, 18% filler,
0.6% three-dimensional grapheme, 1% dispersant and 0.4% antioxidant；Wherein, the host plastic is PPA；The filler is
SiC。
The preparation method of the radiating plastic material, comprises the following steps：
S1：Corresponding each raw material is weighed by above-mentioned percentage by weight；
S2：Host plastic is heat-treated, obtains heat treatment material；The temperature of the heat treatment is 110 DEG C, time 1.5h；
S3：Filler addition grinder is ground to obtain Nano filling；
S4：The heat treatment material that three-dimensional grapheme, dispersant, antioxidant, step S2 are obtained and the nanometer that step S3 is obtained are filled out
Expect to stir to obtain compound in closed agitator high speed；The rotating speed of the high-speed stirred is 15000rpm, the time be 15min with
On；
S5：The obtained compounds of step S4 are put into double screw extruder and carry out extruding pelletization；The rotating speed of double screw extruder
For 5~40 rpm, first operation to stabilization, after the material for having melting is from head extrusion, is further continued for improving under relatively low rotating speed
Rotating speed；Feeding section temperature is 220 DEG C~230 DEG C, and compression section temperature is 230 DEG C~240 DEG C, and metering section temperature is 240 DEG C~250
DEG C, machine neck temperature is 250 DEG C~260 DEG C, 250 DEG C~260 DEG C of die temperature；
S6：Extruded material in step S5 is sent into pelleter pelletizing, obtains pellet, cooling and shaping after pellet is dried；Wherein,
Pelleter rotating speed is 2rpm.
Embodiment 3
A kind of side entrance back module, including backboard, luminescence component and center, the backboard has spill receiving space, described
Center is arranged on the outside of backboard, and reflector plate, light guide plate and blooming piece are sequentially provided with from top to bottom in the backboard receiving space,
The incidence surface of luminescence component light-emitting window towards the light guide plate is arranged on the backlight module side, the luminescence component bag
FPC and some LEDs being pasted onto on the FPC are included, each LED electrically connects with FPC；The center and backboard by
Identical radiating plastic material is made.
The radiating plastic material is made up of the raw material of following percentage by weight：90% host plastic, 8% filler, 1%
Three-dimensional grapheme, 0.8% dispersant and 0.2% antioxidant；Wherein, the host plastic is PET；The filler is fibre
Tie up shape high heat conduction carbon dust.
The preparation method of the radiating plastic material, comprises the following steps：
S1：Corresponding each raw material is weighed by above-mentioned percentage by weight；
S2：Host plastic is heat-treated, obtains heat treatment material；The temperature of the heat treatment is 130 DEG C, time 0.5h；
S3：Filler addition grinder is ground to obtain Nano filling；
S4：The heat treatment material that three-dimensional grapheme, dispersant, antioxidant, step S2 are obtained and the nanometer that step S3 is obtained are filled out
Expect to stir to obtain compound in closed agitator high speed；The rotating speed of the high-speed stirred is 15000rpm, the time be 15min with
On；
S5：The obtained compounds of step S4 are put into double screw extruder and carry out extruding pelletization；The rotating speed of double screw extruder
For 5~40 rpm, first operation to stabilization, after the material for having melting is from head extrusion, is further continued for improving under relatively low rotating speed
Rotating speed；Feeding section temperature is 220 DEG C~230 DEG C, and compression section temperature is 230 DEG C~240 DEG C, and metering section temperature is 240 DEG C~250
DEG C, machine neck temperature is 250 DEG C~260 DEG C, 250 DEG C~260 DEG C of die temperature；
S6：Extruded material in step S5 is sent into pelleter pelletizing, obtains pellet, cooling and shaping after pellet is dried；Wherein,
Pelleter rotating speed is 20rpm.
Comparative example 1
Based on embodiment 1, difference part is only that：The percentage by weight of filler is 12.7% in this comparative example, three-dimensional grapheme
Percentage by weight is 0.
Comparative example 2
Based on embodiment 1, difference part is only that：The percentage by weight of filler is 0 in this comparative example, the weight of three-dimensional grapheme
Percentage is 12.7%.
Test example
The performance of the radiating plastic material in embodiment 1-3 and comparative example 1-2 is determined, is as a result shown：Radiated in embodiment 1-3
The thermal conductivity of plastic material is respectively 4.82W/ (mK), 4.65W/ (mK), 4.45W/ (mK), and specific insulation is respectively
1×1011Ω·m、1.1×1011Ω·m、1.05×1011The thermal conductivity difference of radiating plastic material in Ω m, comparative example 1-2
For 1.85W/ (mK), 2.65W/ (mK), specific insulation is respectively 1 × 108Ω·m、1×109Ω·m。
Embodiment described above only expresses embodiments of the present invention, therefore its description is more specific and detailed, but can not be
And the limitation to the scope of the claims of the present invention is interpreted as, as long as the technical side obtained using the form of equivalent substitution or equivalent transformation
Case, it all should fall within the scope and spirit of the invention.
Claims (10)
1. a kind of side entrance back module, including backboard, luminescence component and center, the backboard has spill receiving space, institute
State center to be arranged on the outside of backboard, reflector plate, light guide plate and optical film are sequentially provided with from top to bottom in the backboard receiving space
Piece, the incidence surface of luminescence component light-emitting window towards the light guide plate are arranged on the backlight module side, it is characterised in that
The center and backboard are made up of identical radiating plastic material, the raw material of the plastic material by following percentage by weight that radiate
It is made：80-90% host plastic, 8-18% filler, 0.2-1% three-dimensional grapheme, 0.5~5% dispersant and 0.2~
0.4% antioxidant.
2. side entrance back module as claimed in claim 1, it is characterised in that the luminescence component includes FPC and is pasted onto
Some LEDs on the FPC, each LED electrically connect with FPC.
3. side entrance back module as claimed in claim 1, it is characterised in that the host plastic is PC, PPA, PET,
One kind in PPS, PA6, PA66, LCP, TPE, PP and PEEK.
4. side entrance back module as claimed in claim 1, it is characterised in that the filler is AlN, SiC, Al2O3, fiber
One kind in shape high heat conduction carbon dust and flakey high heat conduction carbon dust.
5. side entrance back module as claimed in claim 1, it is characterised in that the preparation method of the three-dimensional grapheme is：
S1：Prepare graphene oxide；
S2：Graphene oxide is modified processing, obtains amidized graphene oxide；
S3：Three-dimensional grapheme is prepared using gel method.
6. side entrance back module as claimed in claim 5, it is characterised in that step S1 is：Take 2.0 ~ 5.0g graphite powders and
1.0 ~ 2.0g sodium nitrate is added in the concentrated sulfuric acid that 46 ~ 60ml mass fractions are 98%, and mixture is placed under condition of ice bath and stirred
Mix 30 ~ 60min；6.0 ~ 15.0g potassium permanganate is weighed to be slowly added in above-mentioned mixed liquor, under the conditions of 0 ~ 5 DEG C, quickly stir 2 ~
5h；Mixture is moved into 35 DEG C of tepidariums and continues 3 ~ 6h of stirring；90 ~ 150ml distilled water is slowly added dropwise in mixture, and controls
Temperature processed keeps 30min ~ 60min at 98 DEG C；Room temperature is cooled to, the hydrogen peroxide that mass fraction is 30% is added and removes excessive height
Potassium manganate is untill mixture is changed into glassy yellow；Add and 150 ~ 300ml distilled water dilutings and filter while hot, use successively mole
Until sulfate radical-free ion in filtrate, solution is in neutrality for hydrochloric acid, absolute ethyl alcohol, the deionized water washing that concentration is 0.01mol/L,
Graphene oxide is obtained after 60 DEG C of oven for drying；
Step S2 is：Add graphene oxide into the aqueous solution, be ultrasonically treated 30 ~ 60min, then add amine reducing agent,
At a temperature of 30 ~ 100 DEG C, 6 ~ 24h of mechanic whirl-nett reaction, cleaning, dry, prepare amidized graphene oxide.
7. side entrance back module as claimed in claim 1, it is characterised in that the preparation method bag of the radiating plastic material
Include following steps：
S1：Corresponding each raw material is weighed by above-mentioned percentage by weight；
S2：Host plastic is heat-treated, obtains heat treatment material；
S3：Filler addition grinder is ground to obtain Nano filling；
S4：The heat treatment material that three-dimensional grapheme, dispersant, antioxidant, step S2 are obtained and the nanometer that step S3 is obtained are filled out
Expect to stir to obtain compound in closed agitator high speed；
S5：The obtained compounds of step S4 are put into double screw extruder and carry out extruding pelletization；
S6：Extruded material in step S5 is sent into pelleter pelletizing, obtains pellet, cooling and shaping after pellet is dried.
8. side entrance back module as claimed in claim 7, it is characterised in that the temperature of the heat treatment is 110-130 DEG C,
Time is 0.5-1.5h.
9. side entrance back module as claimed in claim 7, it is characterised in that the rotating speed of the high-speed stirred is
15000rpm, time are more than 15min.
10. side entrance back module as claimed in claim 7, it is characterised in that the rotating speed of double screw extruder be 5~
40rpm, feeding section temperature be 220 DEG C~230 DEG C, compression section temperature be 230 DEG C~240 DEG C, metering section temperature be 240 DEG C~
250 DEG C, machine neck temperature is 250 DEG C~260 DEG C, 250 DEG C~260 DEG C of die temperature；Pelleter rotating speed is 2-20rpm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710661882.XA CN107346077A (en) | 2017-08-04 | 2017-08-04 | A kind of side entrance back module |
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| US20190063439A1 (en) * | 2017-08-28 | 2019-02-28 | Mahle International Gmbh | Electric fluid pump |
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