CN105647136A - Micro-nano composite filling type thermal conductive plastic based on vibration molding and preparation method thereof - Google Patents
Micro-nano composite filling type thermal conductive plastic based on vibration molding and preparation method thereof Download PDFInfo
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- CN105647136A CN105647136A CN201610214588.XA CN201610214588A CN105647136A CN 105647136 A CN105647136 A CN 105647136A CN 201610214588 A CN201610214588 A CN 201610214588A CN 105647136 A CN105647136 A CN 105647136A
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- 239000004033 plastic Substances 0.000 title claims abstract description 44
- 229920003023 plastic Polymers 0.000 title claims abstract description 44
- 239000002114 nanocomposite Substances 0.000 title claims abstract description 30
- 238000000465 moulding Methods 0.000 title claims abstract description 17
- 238000002360 preparation method Methods 0.000 title claims description 15
- 238000011049 filling Methods 0.000 title abstract description 11
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 56
- 239000010439 graphite Substances 0.000 claims abstract description 56
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000000203 mixture Substances 0.000 claims abstract description 27
- 239000007822 coupling agent Substances 0.000 claims abstract description 26
- 239000011159 matrix material Substances 0.000 claims abstract description 23
- 239000000314 lubricant Substances 0.000 claims abstract description 21
- 239000012745 toughening agent Substances 0.000 claims abstract description 21
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 18
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 18
- 239000011347 resin Substances 0.000 claims abstract description 18
- 229920005989 resin Polymers 0.000 claims abstract description 18
- 239000002994 raw material Substances 0.000 claims abstract description 13
- 239000002131 composite material Substances 0.000 claims description 28
- 239000000945 filler Substances 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 21
- 150000001875 compounds Chemical class 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 8
- 239000008188 pellet Substances 0.000 claims description 8
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 4
- 238000010008 shearing Methods 0.000 claims description 3
- 229920000426 Microplastic Polymers 0.000 claims description 2
- 239000011324 bead Substances 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 239000003607 modifier Substances 0.000 claims description 2
- 239000011231 conductive filler Substances 0.000 abstract 2
- 238000012913 prioritisation Methods 0.000 description 10
- 239000005020 polyethylene terephthalate Substances 0.000 description 9
- 229920000139 polyethylene terephthalate Polymers 0.000 description 9
- 238000005457 optimization Methods 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- 239000002245 particle Substances 0.000 description 7
- 238000011068 loading method Methods 0.000 description 5
- -1 polyethylene terephthalate Polymers 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 229920001940 conductive polymer Polymers 0.000 description 2
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- 239000008187 granular material Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
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- 230000008859 change Effects 0.000 description 1
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- 230000007797 corrosion Effects 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses micro-nano composite filling type thermal conductive plastic based on vibration molding. The micro-nano composite filling type thermal conductive plastic comprises the following various raw materials in percentage by weight: 20-90 percent of matrix resin and 10-80 percent of micro-nano composite thermal conductive filler. In addition, the micro-nano composite filling type thermal conductive plastic further comprises the following raw materials in percentage by total weight: 0.2-1 percent of a toughening agent, 1-3 percent of a coupling agent, 0.1-0.5 percent of an antioxidant and 0.1-0.5 percent of a lubricating agent; the micro-nano composite thermal conductive filler is a mixture of flake graphite and nano-graphite according to the mass ratio of (1-9):1. The invention further provides a method for preparing the thermal conductive plastic. The thermal conductive plastic prepared by the method is excellent in thermal conductivity and higher in mechanical property.
Description
Technical field
The present invention relates to the compositions of a kind of macromolecular compound, be specifically related to composite filled type heat-conducting plastic of a kind of micro-nano based on vibration moulding and preparation method thereof.
Background technology
Heat Conduction Material is the functional material that a class is important, and it has a wide range of applications in the field such as national defense industry and national economy. Heat conductivility, as one highly important physical property of material, is also paid close attention to by people more and more. Heat Conduction Material can accelerate the heat transfer efficiency of heat radiation original paper, thus improving use value and the service life of product. Conventional thermal conductive material mostly is metal, owing to corrosion resistance is very poor, is not easy to processing and forming, can not meet all the more life and produce the requirement to Heat Conduction Material, so needing the heat conduction functional material of development of new.
Macromolecular material has light weight, easy machine-shaping, the excellent combination property such as with low cost, it is possible to overcomes the defect of conventional thermal conductive material and fully meets the user demand of above-mentioned application, so showing up prominently in this field gradually. But, combine by molecular separating force owing to macromolecular material is usually, it it is all the non-conductor of heat, when room temperature, even thermal conductivity on average only has 0.1-1W/m K, itself heat conductivility is often poor, significantly limit the heat diffusion capabilities of high polymer, therefore high-heat-conductive composite material be developed into key. Through substantial amounts of experiment with repeatedly study, find adopt the heat filling filled polymer matrix of high heat conductance and prepare composite, the thermal conductivity of macromolecular material can be effectively improved, the heat-conducting polymer material so obtained is cheap, technique or formula are prone to adjust, can be used for multiple application, this becomes the main direction of studying of thermal conductive polymer composite.
Want to give the heat conductivity that macromolecular material is excellent, in macromolecular material, fill the filler of good heat conductivity mainly by methods such as blended, melt blended and solution blendings. Additionally, while adding the heat conductivity of implant raising material, the mechanical property of matrix material must be ensured. Therefore, how to make the heat conduction network in system be formed to the full extent and reach conduction of heat effectively and do not affect the key issue that the mechanical property of this system is research and development HEAT-CONDUCTING PLASTICS FILLED WTTH PARTICLES. Existing heat-conducting plastic is generally difficult to accomplish existing excellent heat conductivity, meets again the mechanical property that heat-conducting plastic is higher.
Summary of the invention
It is an object of the invention to provide and a kind of both there is excellent heat conductivity, there is again the heat-conducting plastic of higher force performance, another object of the present invention is to provide a kind of method preparing above-mentioned heat-conducting plastic.
For reaching above-mentioned purpose, the present invention provides following base case one:
Based on the composite filled type heat-conducting plastic of micro-nano of vibration moulding, the mass percent of its various raw materials is: matrix resin 20-90%, micro-nano composite heat-conducting filler 10-80%; Additionally with total amount, possibly together with toughener 0.2-1%, coupling agent 1-3%, antioxidant 0.1-0.5%, lubricant 0.1-1.5%; Described micro-nano composite heat-conducting filler is mass ratio is the mixture of the crystalline flake graphite of 1-9:1 and nano-graphite.
The present invention program adopts the general meter method of the art, calculate the mass percent of raw material, only calculate matrix resin and heat filling, and toughener, coupling agent, antioxidant and lubricant are not counted, because as a whole, the amount of toughener, coupling agent, antioxidant and lubricant is less.
The advantage of this programme is: the present invention adopts crystalline flake graphite and nano-graphite to form micron, nano composite heat filling, and extraneous vibration field, matrix resin is made to mix more uniform with micro-nano compounded mix, the compound filler of micro-nano is easier to form heat conduction network chain, under low loading, while ensureing the superiority of matrix plastic mechanical property, the heat-conducting plastic that heat transfer efficiency is high can be obtained, can be widely applied in the electric case material with medical field and packaging material, auto parts machinery and plant equipment.
Prioritization scheme 1, the further optimization to base case, the mass percent of its various raw materials is: matrix resin 40-70%, micro-nano composite heat-conducting filler 30-60%; Additionally with total amount, possibly together with toughener 0.2-0.8%, coupling agent 1-2%, antioxidant 0.2-0.4%, lubricant 0.2-0.8%; Described micro-nano composite heat-conducting filler is mass ratio is the mixture of the crystalline flake graphite of 1-4:1 and nano-graphite. The heat conductivility of the heat-conducting plastic prepared under said ratio and mechanical property are more preferably.
Prioritization scheme 2, the further optimization to base case one, the mass percent of its various raw materials is: matrix resin 60%, micro-nano composite heat-conducting filler 40%; Additionally with total amount, possibly together with toughener 0.4%, coupling agent 1.5%, antioxidant 0.3%, lubricant 0.3%; Described micro-nano composite heat-conducting filler is mass ratio is the mixture of the crystalline flake graphite of 2:1 and nano-graphite. Inventor finds through test, and the heat conductivility of the heat-conducting plastic prepared under said ratio and mechanical property are best.
Prioritization scheme 3, the further optimization to base case one, described micro-nano composite heat-conducting filler is the mixture of crystalline flake graphite and nano-graphite, and the diameter of described nano-graphite is 100nm. Mixing filling can make the formation of granule footpath and big particle diameter compare to pile up closely, advantageously form more effective heat conduction network, built between different-grain diameter particle can change, adopt this diameter, again through the proportioning adjusting micro-nano structure, cooperation best between particle can be obtained, it is thus achieved that best bridge formation effect.
The present invention also provides for following base case two:
The preparation method of the composite filled type heat-conducting plastic of a kind of micro-nano based on vibration moulding, comprises the following steps:
S1. following raw material is proportionally prepared: matrix resin, micro-nano composite heat-conducting filler, toughener, coupling agent, antioxidant and lubricant;
S2. first with coupling agent, the surface of crystalline flake graphite and nano-graphite is carried out pretreatment, add matrix resin, toughener, lubricant and antioxidant, utilize melt blending extrusion molding to prepare the composite filled type heat-conducting plastic pellet of micro-nano;
S3. by the step S2 pellet injection mo(u)lding extruded, when beads fuse, material is applied oscillator field, make the arrangement of mutually moving of melted matrix resin and micro-nano composite heat-conducting filler reach uniform close.
The advantage of this programme is: the present invention is by material extraneous vibration field, the mix homogeneously of filler and matrix material is made and tight by the compound action vibrated and shear, under low loading, the thermal conducting path that heat filling is constituted can be made further perfect, so that the thermal conductivity of composite improves rapidly, achieve the purpose of low loading height heat conduction, greatly increase properties of product.
Prioritization scheme 4, the further optimization to base case two, in step S3, oscillator field frequency of vibration is 1-30Hz. The present inventor finds through test, when oscillator field frequency of vibration is in above-mentioned scope, can reach the purpose of the present invention.
Prioritization scheme 5, the further optimization to prioritization scheme 4, in step S3, oscillator field frequency of vibration is 12Hz. Frequency of vibration is more big, and thermal conductivity is more good, and more than 12Hz thermal conductivity tends to be steady, but hot strength can decline, so considering, oscillator field frequency is best results during 12Hz.
It is select titanate coupling agent TMC-931 as the surface modifier of crystalline flake graphite and nano-graphite that prioritization scheme 6, the further optimization to base case two, crystalline flake graphite in step S2 and the surface of nano-graphite carry out pretreatment. When adopting titanate coupling agent TMC-931 to process, the heat conductivility of the heat-conducting plastic finally given and mechanical property are more preferably.
Prioritization scheme 7, the further optimization to base case two, the method for step S2 is as follows:
S21. with coupling agent, the surface of crystalline flake graphite and nano-graphite is carried out pretreatment;
S22. mix with high-speed mixer, first pretreated crystalline flake graphite and nano-graphite are poured in high-speed mixer, the high temperature and the whipping process that utilize high-speed mixer make the crystalline flake graphite of compound and the coupling agent on nano-graphite and surface react, and heat stops for mixed 8-12 minute;
S23. add plastic substrate, be cooled to after room temperature until high mixer, add toughener, lubricant and antioxidant.
In this programme, high-speed mixer adopts high-speed mixer that crystalline flake graphite and nano-graphite are carried out Combined Processing, it is possible to be effectively improved both composite effects, thus ensureing heat conduction and the mechanical property of heat-conducting plastic; It addition, high mixer adds toughener, lubricant and antioxidant after being cooled to room temperature, the maximum efficiency of toughener, lubricant and antioxidant can be played.
Prioritization scheme 8, the further optimization to prioritization scheme any one of 4-7, the method for step S3 is as follows:
S31. by pellet and plastic substrate mix homogeneously again, heat to molten condition and stablize;
S32. the melted composite filled type heat-conducting plastic of micro-nano is applied oscillator field, realize certain mixed effect by vibrating and shearing compound action.
In this programme, to pellet and plastic substrate mix homogeneously again, it is possible to make plastic substrate and micro-nano composite heat-conducting filler fully mix, during follow-up applying oscillator field, micro-nano composite heat-conducting filler can be arranged in the structure of uniform close in plastic substrate, thus increased thermal conductivity energy and mechanical property.
Accompanying drawing explanation
Fig. 1 is that the proportioning of the micro-nano compounded mix of embodiment of the present invention 1-5 is to heat-conducting plastic material heat conductivility figure;
Fig. 2 be the embodiment of the present invention 1, embodiment 6-11 oscillator field frequency to heat-conducting plastic material heat conductivility figure.
Detailed description of the invention
Below by detailed description of the invention, the present invention is further detailed explanation, but the present invention is not limited in any form by embodiment. Unless stated otherwise, the present invention adopts reagent, method and apparatus are the art conventional reagent, method and apparatus.Unless stated otherwise, agents useful for same of the present invention and material are commercial.
In the present embodiment, matrix resin used is polyethylene terephthalate, and toughener used is SEBS-g-MA, and coupling agent used is titanate coupling agent, and antioxidant used is antioxidant 1010, and lubricant used is PETS.
Being described in detail for embodiment 1 below, proportioning and the index of other embodiments embody in Table 1, and the process step of other embodiments is identical with embodiment 1.
Embodiment 1
The composite filled type heat-conducting plastic of a kind of micro-nano based on vibration moulding, the quality of its various raw materials is: polyethylene terephthalate (PET) 60g, micro-nano composite heat-conducting filler 40g; Additionally with total amount, it is 1g possibly together with toughener SEBS-g-MA content to be 0.8g, titanate coupling agent 2g, antioxidant 1010 content be 0.3g, lubricant PETS content; Described micro-nano composite heat-conducting filler is mass ratio is the mixture of the crystalline flake graphite of 2:1 and nano-graphite.
The preparation method of the heat-conducting plastic described in the present embodiment, comprises the following steps:
S1. following raw material is prepared according to aforementioned proportion: polyethylene terephthalate (PET), micro-nano composite heat-conducting filler, toughener SEBS-g-MA, titanate coupling agent, antioxidant 1010 and lubricant PETS;
S21. with coupling agent, the surface of crystalline flake graphite and nano-graphite is carried out pretreatment;
S22. mix with high-speed mixer, first pretreated crystalline flake graphite and nano-graphite are poured in mixer, the high temperature and the whipping process that utilize high-speed mixer make the crystalline flake graphite of compound and the coupling agent on nano-graphite and surface react, the mixed stopping in about general ten minutes of heat;
S23. add polyethylene terephthalate (PET) pellet, be cooled to after room temperature until high mixer, add toughener SEBS-g-MA, lubricant PETS and antioxidant 1010.
S31. by pellet material and polyethylene terephthalate (PET) pellet mix homogeneously again, heat to molten condition and stablize;
S32. the melted composite filled type heat-conducting plastic of micro-nano is applied the oscillator field of 12Hz, realizes certain mixed effect by vibrating and shearing compound action, obtain the thick rectangular flat of 1mm by hot-forming.
Table 1
The thermal conductivity of the sample of preparation in testing example 1-5, obtains such as the test result of accompanying drawing 1 respectively.
The hot strength of the sample of preparation in testing example 1, embodiment 6-11, obtains the result shown in table 2 and accompanying drawing 2 respectively.
The impact strength of sample of preparation, tensile strength in testing example 1, embodiment 12-15, obtain the result shown in table 3 respectively.
Table 2
Table 3
1, in embodiment 1-5, the mass ratio differing only in micro-nano compounded mix is different, and accompanying drawing 1 is embodiment 1-5 heat conductivility test result. It can be seen that the heat filling mixing of micro-nano compound structure is filled in matrix its heat conductivility is better than and is used alone tradition common micro-scaled filler from accompanying drawing 1. This is to pile up closely owing to mixing filling can make granule footpath compare with the formation of big particle diameter conductive particle, advantageously forms more effective heat conduction network. When micro-nano compounded mix proportioning is 2:1, the heat conductivility of composite is optimum, and its thermal conductivity is up to 1.420Wm-1K-1. This is owing to, under this proportioning, achieving best cooperation between particle, it is thus achieved that best network structure.
2, embodiment 1, in embodiment 6-11, differ only in the preparation process of sample, the oscillator field frequency adopted is different, and table 2 is embodiment 1, embodiment 6-11 mechanical experimental results, and accompanying drawing 2 is embodiment 1, embodiment 6-11 heat conductivility test result.From table 2 it can be seen that when the frequency of vibration of oscillator field reaches 12Hz, the mechanical property of heat-conducting plastic is optimum; It can be seen that along with the increase of the oscillator field frequency applied, the heat conductivility of composite is more good from accompanying drawing 2, when the oscillator field frequency applied tends to 12Hz, the heat conductivility of composite rises and tends towards stability, and its thermal conductivity is up to 1.420Wm-1K-1. This is owing to along with the increase of oscillator field frequency, sample mix effect is more good, and filler dispersion is about uniform, more easily forms network structure. To sum up it is found that the effect that the frequency of vibration of oscillator field is 12Hz is optimum.
3, embodiment 1, in embodiment 12-15, difference essentially consists in, and the loading of micro-nano compounded mix is different, from table 3 it can be seen that when the loading of micro-nano compounded mix is 40g (i.e. accounting 40%), mechanical property optimum.
Above-described is only embodiments of the invention, and in scheme, the general knowledge such as known characteristic does not do too much description at this. Should be understood that; for a person skilled in the art, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement; these also should be considered as protection scope of the present invention, and these are all without affecting effect of the invention process and practical applicability. The protection domain that this application claims should be as the criterion with the content of its claim, and the detailed description of the invention in description etc. records the content that may be used for explaining claim.
Claims (10)
1. the composite filled type heat-conducting plastic of the micro-nano based on vibration moulding, it is characterised in that the mass percent of its various raw materials is: matrix resin 20-90%, micro-nano composite heat-conducting filler 10-80%; Additionally with total amount, possibly together with toughener 0.2-1%, coupling agent 1-3%, antioxidant 0.1-0.5%, lubricant 0.1-1.5%; Described micro-nano composite heat-conducting filler is mass ratio is the mixture of the crystalline flake graphite of 1-9:1 and nano-graphite.
2. the composite filled type heat-conducting plastic of a kind of micro-nano based on vibration moulding according to claim 1, it is characterised in that the mass percent of its various raw materials is: matrix resin 40-70%, micro-nano composite heat-conducting filler 30-60%; Additionally with total amount, possibly together with toughener 0.2-0.8%, coupling agent 1-2%, antioxidant 0.2-0.4%, lubricant 0.2-0.8%; Described micro-nano composite heat-conducting filler is mass ratio is the mixture of the crystalline flake graphite of 1-4:1 and nano-graphite.
3. the composite filled type heat-conducting plastic of a kind of micro-nano based on vibration moulding according to claim 1, it is characterised in that the mass percent of its various raw materials is: matrix resin 60%, micro-nano composite heat-conducting filler 40%; Additionally with total amount, possibly together with toughener 0.4%, coupling agent 1.5%, antioxidant 0.3%, lubricant 0.3%; Described micro-nano composite heat-conducting filler is mass ratio is the mixture of the crystalline flake graphite of 2:1 and nano-graphite.
4. the composite filled type heat-conducting plastic of the micro-nano based on vibration moulding according to claim 1, it is characterised in that described micro-nano composite heat-conducting filler is the mixture of crystalline flake graphite and nano-graphite, and the diameter of described nano-graphite is 100nm.
5. based on the preparation method of the composite filled type heat-conducting plastic of micro-nano of vibration moulding described in an any one of claim 1-4, it is characterised in that comprise the following steps:
S1. following raw material is proportionally prepared: matrix resin, micro-nano composite heat-conducting filler, toughener, coupling agent, antioxidant and lubricant;
S2. first with coupling agent, the surface of crystalline flake graphite and nano-graphite is carried out pretreatment;Add matrix resin, toughener, lubricant and antioxidant, utilize melt blending extrusion molding to prepare the composite filled type heat-conducting plastic pellet of micro-nano;
S3. by the step S2 pellet injection mo(u)lding extruded, when beads fuse, material is applied oscillator field, make the arrangement of mutually moving of melted matrix resin and micro-nano composite heat-conducting filler reach uniform close.
6. the preparation method of the composite filled type heat-conducting plastic of the micro-nano based on vibration moulding according to claim 5, it is characterised in that in step S3, oscillator field frequency of vibration is 1-30Hz.
7. the preparation method of the composite filled type heat-conducting plastic of the micro-nano based on vibration moulding according to claim 6, it is characterised in that in step S3, oscillator field frequency of vibration is 12Hz.
8. the preparation method of the composite filled type heat-conducting plastic of the micro-nano based on vibration moulding according to claim 5, it is characterized in that, it is select titanate coupling agent TMC-931 as the surface modifier of crystalline flake graphite and nano-graphite that crystalline flake graphite in step S2 and the surface of nano-graphite carry out pretreatment.
9. the preparation method of the composite filled type heat-conducting plastic of the micro-nano based on vibration moulding according to claim 5, it is characterised in that the method for step S2 is as follows:
S21. with coupling agent, the surface of crystalline flake graphite and nano-graphite is carried out pretreatment;
S22. mix with high-speed mixer, first pretreated crystalline flake graphite and nano-graphite are poured in mixer, the high temperature and the whipping process that utilize high-speed mixer make the crystalline flake graphite of compound and the coupling agent on nano-graphite and surface react, and heat stops for mixed 8-12 minute;
S23. add matrix resin, be cooled to after room temperature until high mixer, add toughener, lubricant and antioxidant.
10. the preparation method of the composite filled type heat-conducting plastic of the micro-nano based on vibration moulding according to any one of claim 6-9, it is characterised in that the method for step S3 is as follows:
S31. by pellet and matrix resin mix homogeneously again, heat to molten condition and stablize;
S32. the melted composite filled type heat-conducting plastic of micro-nano is applied oscillator field, realize certain mixed effect by vibrating and shearing compound action.
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| CN201610214588.XA CN105647136B (en) | 2016-04-07 | 2016-04-07 | Composite filled type heat-conducting plastic of a kind of micro-nano based on vibration moulding and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109005317A (en) * | 2017-06-06 | 2018-12-14 | 罗伯特·博世有限公司 | Housing for a camera and manufacturing method |
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| CN109005317A (en) * | 2017-06-06 | 2018-12-14 | 罗伯特·博世有限公司 | Housing for a camera and manufacturing method |
| CN109005317B (en) * | 2017-06-06 | 2021-05-04 | 罗伯特·博世有限公司 | Housing for a camera and method of manufacture |
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| CN105647136B (en) | 2018-03-09 |
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