CN110483995A - A kind of graphene heat-conducting plastic and preparation method thereof - Google Patents
A kind of graphene heat-conducting plastic and preparation method thereof Download PDFInfo
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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Abstract
The invention discloses a kind of graphene heat-conducting plastics and preparation method thereof, it is mixed the following steps are included: will be stirred first to the heat filling of crystal whisker-shaped with surface treating agent, surface treating agent is set to complete the surface treatment to heat filling, in heating epoxy adhesive after the completion of processing, obtain mixed material, obtained mixed material is mixed with graphene and coupling agent, obtain heat-conducting compound material, obtained heat-conducting compound material is mixed with plastic basis material and plasticizer, and it is uniformly mixed in batch mixer, it is sent to extruding pelletization in double screw extruder later, obtain graphene heat-conducting plastic.The graphene heat-conducting plastic and preparation method thereof, the heating conduction being had by the good thermal conductivity of graphene and heat filling, it is effectively increased the heating conduction for preparing heat-conducting plastic, reach the heating conduction demand used, the heat filling of crystal whisker-shaped also adds the thermal coefficient of heat filling when mixing with graphene and plastic basis material simultaneously.
Description
Technical field
The invention belongs to plastic material preparation technical fields, and in particular to a kind of graphene heat-conducting plastic and its preparation side
Method.
Background technique
For plastics as a kind of important high-molecular compound material, application range is very extensive.With the processing of metal material
The disadvantages such as difficulty is big, and cost is high, and production efficiency is low are different, and plastics have design freedom high, and easy processing forms, at low cost
The advantages that, therefore replace the application of metal constantly to expand using plastics in the world.But there is also shortcomings for plastics, and
The high-termal conductivity of metal is compared, and heating conduction is generally poor, the application which has limited plastics in heat conduction and heat radiation field.
Graphene is a kind of honeycomb flat film formed by carbon atom with sp2 hybrid form, be it is a kind of only one
The quasi- two-dimensional material of atomic layer level thickness does monoatomic layer graphite so being called, and as graphene is since 2004 are found,
Due to its unique two-dimensional structure and excellent calorifics, mechanics and electric property, have become materials science field by pass
One of research hotspot of note.But the method for being mixed with heat-conducting plastic applied to graphene at present is less, and how to make to prepare
Heat-conducting plastic its can be excellent succession graphene performance, and the heating conduction for further increasing itself is nowadays to develop
Demand.
Summary of the invention
The purpose of the present invention is to provide a kind of graphene heat-conducting plastics and preparation method thereof, to solve above-mentioned background technique
The problem of middle proposition.
To achieve the above object, the invention provides the following technical scheme:
A kind of graphene heat-conducting plastic and preparation method thereof, the graphene heat-conducting plastic by following mass parts raw material system
At: 20~50 parts of heat filling, 4~10 parts of graphene, 40-80 parts of plastic basis material, 0.5~1.5 part of surface treating agent, epoxy glue
Glutinous 0.3~1.2 part of agent, 0.2~0.5 part of coupling agent, 0.1-1 parts of plasticizer.
Preferably, the graphene heat-conducting plastic is made of the raw material of following mass parts: 35 parts of heat filling, plastic basis material
60 parts, 7 parts of graphene, 1.0 parts of surface treating agent, 0.8 part of epoxy adhesive, 0.4 part of coupling agent, 0.6 part of plasticizer.
Preferably, the plastic basis material includes any one of PPS, PA6/PA66, LCP, TPE, PC, PP, PPA, PEEK,
The graphene is one of alkylation graphene, amination graphene, sulfhydrylation graphene or graphene oxide or a variety of
Mixing.
Preferably, surface treating agent preferred vinyl three ('beta '-methoxy ethyoxyl) silane, the coupling agent are silicon
At least one of alkane coupling agent, aluminium titanium coupling agent, titanate coupling agent, including KH550, KH560, KH570, KH792,
DL602, DL171.
Preferably, the guide filler select the oxygen of crystal whisker-shaped from change aluminium, magnesia, zinc oxide, aluminium nitride, boron nitride,
Any one of silicon carbide.
Preferably, the plasticizer is ditridecyl phthalate, dibutyl phthalate, phthalic acid tolyl fourth
With the one or more of diethyl phthalate.
A kind of preparation method of graphene heat-conducting plastic, comprising the following steps:
S1: it will be stirred mix with surface treating agent to the heat filling of crystal whisker-shaped first, complete surface treating agent
Surface treatment to heat filling obtains mixed material in heating epoxy adhesive after the completion of processing；
S2: the mixed material that S1 is obtained is mixed with graphene and coupling agent, obtains heat-conducting compound material；
S3: heat-conducting compound material obtained in S2 is mixed with plastic basis material and plasticizer, and is mixed in batch mixer
It closes uniformly, is sent to extruding pelletization in double screw extruder later, obtains graphene heat-conducting plastic.
Preferably, in S1, the preferred SiC whisker of the heat filling of crystal whisker-shaped, preparation the following steps are included:
A: take carbon source and silicon source that presoma is made；
B: after gained presoma is tabletted, be embedded to quartz sand in, carry out microwave sintering synthetic reaction to get.
Technical effect and advantage of the invention: the graphene heat-conducting plastic and preparation method thereof, by increase graphene and
Heat filling and plastic basis material are mixed with, the thermal conductivity being had by the good thermal conductivity of graphene and heat filling
Can, it is effectively increased the heating conduction for preparing heat-conducting plastic, reaches the heating conduction demand used, while crystal whisker-shaped is led
It also increases the thermal coefficient that heat filling uses when mixing with the preparation of graphene and plastic basis material to hot filler, and leads with a
Hot filler using epoxy adhesive is filled epoxy after being surface-treated before start, be not surface-treated after fill out
It fills epoxy to compare, thermal conductivity improves 10%, and then keeps the heating conduction of the heat-conducting plastic of preparation more prominent, this last preparation
Method is simple and easy, easily operated, is suitble to industrialization, and the obtained graphene heat-conducting plastic has good heating conduction,
It has a good application prospect.
Specific embodiment
Below in conjunction with the contents of the present invention, the technical solution in the present invention is clearly and completely described, it is clear that
Described content is only a part of content of the present invention, rather than whole contents.Based on the content in the present invention, this field
Those of ordinary skill's every other content obtained without making creative work belongs to what the present invention protected
Range.
Embodiment 1
The present invention provides a kind of graphene heat-conducting plastic and preparation method thereof, the graphene heat-conducting plastic is by following matter
The raw material of amount part is made: 20~50 parts of heat filling, 4~10 parts of graphene, 40-80 parts of plastic basis material, surface treating agent 0.5~
1.5 parts, 0.3~1.2 part of epoxy adhesive, 0.2~0.5 part of coupling agent, 0.1-1 parts of plasticizer.
Specifically, the graphene heat-conducting plastic is made of the raw material of following mass parts: 35 parts of heat filling, plastic basis material
60 parts, 7 parts of graphene, 1.0 parts of surface treating agent, 0.8 part of epoxy adhesive, 0.4 part of coupling agent, 0.6 part of plasticizer.
Specifically, the plastic basis material includes any one of PPS, PA6/PA66, LCP, TPE, PC, PP, PPA, PEEK,
The graphene is one of alkylation graphene, amination graphene, sulfhydrylation graphene or graphene oxide or a variety of
Mixing.
Specifically, surface treating agent preferred vinyl three ('beta '-methoxy ethyoxyl) silane, the coupling agent is silicon
At least one of alkane coupling agent, aluminium titanium coupling agent, titanate coupling agent, including KH550, KH560, KH570, KH792,
DL602, DL171.
Specifically, the guide filler select the oxygen of crystal whisker-shaped from change aluminium, magnesia, zinc oxide, aluminium nitride, boron nitride,
Any one of silicon carbide.
Specifically, the plasticizer is ditridecyl phthalate, dibutyl phthalate, phthalic acid tolyl fourth
With the one or more of diethyl phthalate.
A kind of preparation method of graphene heat-conducting plastic, comprising the following steps:
S1: it will be stirred mix with surface treating agent to the heat filling of crystal whisker-shaped first, complete surface treating agent
Surface treatment to heat filling obtains mixed material in heating epoxy adhesive after the completion of processing；
S2: the mixed material that S1 is obtained is mixed with graphene and coupling agent, obtains heat-conducting compound material；
S3: heat-conducting compound material obtained in S2 is mixed with plastic basis material and plasticizer, and is mixed in batch mixer
It closes uniformly, is sent to extruding pelletization in double screw extruder later, obtains graphene heat-conducting plastic.
Specifically, in S1, the preferred SiC whisker of the heat filling of crystal whisker-shaped, preparation the following steps are included:
A: take carbon source and silicon source that presoma is made；
B: after gained presoma is tabletted, be embedded to quartz sand in, carry out microwave sintering synthetic reaction to get.
Embodiment 2
A kind of graphene heat-conducting plastic and preparation method thereof, the graphene heat-conducting plastic by following mass parts raw material system
At: 20~50 parts of heat filling, 4~10 parts of graphene, 40-80 parts of plastic basis material, 0.5~1.5 part of surface treating agent, epoxy glue
Glutinous 0.3~1.2 part of agent, 0.2~0.5 part of coupling agent, 0.1-1 parts of plasticizer.
Specifically, the graphene heat-conducting plastic is made of the raw material of following mass parts: 35 parts of heat filling, plastic basis material
60 parts, 7 parts of graphene, 1.0 parts of surface treating agent, 0.8 part of epoxy adhesive, 0.4 part of coupling agent, 0.6 part of plasticizer.
Specifically, the plastic basis material includes any one of PPS, PA6/PA66, LCP, TPE, PC, PP, PPA, PEEK,
The graphene is one of alkylation graphene, amination graphene, sulfhydrylation graphene or graphene oxide or a variety of
Mixing.
Specifically, surface treating agent preferred vinyl three ('beta '-methoxy ethyoxyl) silane, the coupling agent is silicon
At least one of alkane coupling agent, aluminium titanium coupling agent, titanate coupling agent, including KH550, KH560, KH570, KH792,
DL602, DL171.
Specifically, the guide filler select the oxygen of crystal whisker-shaped from change aluminium, magnesia, zinc oxide, aluminium nitride, boron nitride,
Any one of silicon carbide.
Specifically, the plasticizer is ditridecyl phthalate, dibutyl phthalate, phthalic acid tolyl fourth
With the one or more of diethyl phthalate.
A kind of preparation method of graphene heat-conducting plastic, comprising the following steps:
S1: it will be stirred mix with surface treating agent to the heat filling of crystal whisker-shaped first, complete surface treating agent
Surface treatment to heat filling obtains mixed material in heating epoxy adhesive after the completion of processing；
S2: the mixed material that S1 is obtained is mixed with graphene and coupling agent, obtains heat-conducting compound material；
S3: heat-conducting compound material obtained in S2 is mixed with plastic basis material and plasticizer, and is mixed in batch mixer
It closes uniformly, is sent to extruding pelletization in double screw extruder later, obtains graphene heat-conducting plastic.
Specifically, in S1, the preferred SiC whisker of the heat filling of crystal whisker-shaped, preparation the following steps are included:
A: take carbon source and silicon source that presoma is made；
B: after gained presoma is tabletted, be embedded to quartz sand in, carry out microwave sintering synthetic reaction to get.
Embodiment 3
A kind of graphene heat-conducting plastic and preparation method thereof, the graphene heat-conducting plastic by following mass parts raw material system
At: 20~50 parts of heat filling, 4~10 parts of graphene, 40-80 parts of plastic basis material, 0.5~1.5 part of surface treating agent, epoxy glue
Glutinous 0.3~1.2 part of agent, 0.2~0.5 part of coupling agent, 0.1-1 parts of plasticizer.
Specifically, the graphene heat-conducting plastic is made of the raw material of following mass parts: 35 parts of heat filling, plastic basis material
60 parts, 7 parts of graphene, 1.0 parts of surface treating agent, 0.8 part of epoxy adhesive, 0.4 part of coupling agent, 0.6 part of plasticizer.
Specifically, the plastic basis material includes any one of PPS, PA6/PA66, LCP, TPE, PC, PP, PPA, PEEK,
The graphene is one of alkylation graphene, amination graphene, sulfhydrylation graphene or graphene oxide or a variety of
Mixing.
Specifically, surface treating agent preferred vinyl three ('beta '-methoxy ethyoxyl) silane, the coupling agent is silicon
At least one of alkane coupling agent, aluminium titanium coupling agent, titanate coupling agent, including KH550, KH560, KH570, KH792,
DL602, DL171.
Specifically, the guide filler select the oxygen of crystal whisker-shaped from change aluminium, magnesia, zinc oxide, aluminium nitride, boron nitride,
Any one of silicon carbide.
Specifically, the plasticizer is ditridecyl phthalate, dibutyl phthalate, phthalic acid tolyl fourth
With the one or more of diethyl phthalate.
A kind of preparation method of graphene heat-conducting plastic, comprising the following steps:
S1: it will be stirred mix with surface treating agent to the heat filling of crystal whisker-shaped first, complete surface treating agent
Surface treatment to heat filling obtains mixed material in heating epoxy adhesive after the completion of processing；
S2: the mixed material that S1 is obtained is mixed with graphene and coupling agent, obtains heat-conducting compound material；
S3: heat-conducting compound material obtained in S2 is mixed with plastic basis material and plasticizer, and is mixed in batch mixer
It closes uniformly, is sent to extruding pelletization in double screw extruder later, obtains graphene heat-conducting plastic.
Specifically, in S1, the preferred SiC whisker of the heat filling of crystal whisker-shaped, preparation the following steps are included:
A: take carbon source and silicon source that presoma is made；
B: after gained presoma is tabletted, be embedded to quartz sand in, carry out microwave sintering synthetic reaction to get.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features,
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (8)
1. a kind of graphene heat-conducting plastic, it is characterised in that: the graphene heat-conducting plastic is made of the raw material of following mass parts:
20~50 parts of heat filling, 4~10 parts of graphene, 40-80 parts of plastic basis material, 0.5~1.5 part of surface treating agent, epoxy gluing
0.3~1.2 part of agent, 0.2~0.5 part of coupling agent, 0.1-1 parts of plasticizer.
2. a kind of graphene heat-conducting plastic according to claim 1, it is characterised in that: the graphene heat-conducting plastic by with
The raw material of lower mass parts is made: 35 parts of heat filling, 60 parts of plastic basis material, 7 parts of graphene, 1.0 parts of surface treating agent, epoxy glue
Glutinous 0.8 part of agent, 0.4 part of coupling agent, 0.6 part of plasticizer.
3. described in any item a kind of graphene heat-conducting plastics according to claim 1~2, it is characterised in that: the plastic basis material
Including any one of PPS, PA6/PA66, LCP, TPE, PC, PP, PPA, PEEK, the graphene is alkylation graphene, ammonia
One of base graphite alkene, sulfhydrylation graphene or graphene oxide or a variety of mixing.
4. described in any item a kind of graphene heat-conducting plastics according to claim 1~2, it is characterised in that: the surface treatment
Agent preferred vinyl three ('beta '-methoxy ethyoxyl) silane, the coupling agent are silane coupling agent, aluminium titanium coupling agent, titanate esters idol
Join at least one of agent, including KH550, KH560, KH570, KH792, DL602, DL171.
5. described in any item a kind of graphene heat-conducting plastics according to claim 1~2, it is characterised in that: the guide filler
The oxygen of crystal whisker-shaped is selected to change any one of aluminium, magnesia, zinc oxide, aluminium nitride, boron nitride, silicon carbide certainly.
6. described in any item a kind of graphene heat-conducting plastics according to claim 1~2, it is characterised in that: the plasticizer is
Ditridecyl phthalate, dibutyl phthalate, phthalic acid tolyl fourth and diethyl phthalate one kind or
It is several.
7. the preparation method of described in any item a kind of graphene heat-conducting plastics according to claim 1~2, it is characterised in that: packet
Include following steps:
S1: will be stirred with surface treating agent to the heat filling of crystal whisker-shaped mix first, complete surface treating agent to leading
The surface treatment of hot filler obtains mixed material in heating epoxy adhesive after the completion of processing；
S2: the mixed material that S1 is obtained is mixed with graphene and coupling agent, obtains heat-conducting compound material；
S3: heat-conducting compound material obtained in S2 is mixed with plastic basis material and plasticizer, and is mixed in batch mixer
It is even, it is sent to extruding pelletization in double screw extruder later, obtains graphene heat-conducting plastic.
8. a kind of preparation method of graphene heat-conducting plastic according to claim 7, it is characterised in that: in S1, whisker
The preferred SiC whisker of the heat filling of shape, preparation the following steps are included:
A: take carbon source and silicon source that presoma is made；
B: after gained presoma is tabletted, be embedded to quartz sand in, carry out microwave sintering synthetic reaction to get.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103342891A (en) * | 2013-07-03 | 2013-10-09 | 徐常威 | High-performance flame-retardant heat-conductive plastic material and preparation method thereof |
| CN104328478A (en) * | 2014-08-14 | 2015-02-04 | 郑州航空工业管理学院 | Preparation method of SiC crystal whisker |
| CN106543708A (en) * | 2016-09-29 | 2017-03-29 | 惠安县高智模具技术服务有限公司 | A kind of LED illumination fills heat conductive flame-retarding nylon polyphenylene oxide composite material with ultralow |
| CN109735095A (en) * | 2018-11-28 | 2019-05-10 | 宁波墨西科技有限公司 | Graphene composite heat-conducting plastics and preparation method thereof |
| CN110016227A (en) * | 2019-05-05 | 2019-07-16 | 合肥工业大学 | A kind of nylon composite materials and preparation method thereof containing secondary surface modifying stuffing |
-
2019
- 2019-09-05 CN CN201910837960.6A patent/CN110483995A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103342891A (en) * | 2013-07-03 | 2013-10-09 | 徐常威 | High-performance flame-retardant heat-conductive plastic material and preparation method thereof |
| CN104328478A (en) * | 2014-08-14 | 2015-02-04 | 郑州航空工业管理学院 | Preparation method of SiC crystal whisker |
| CN106543708A (en) * | 2016-09-29 | 2017-03-29 | 惠安县高智模具技术服务有限公司 | A kind of LED illumination fills heat conductive flame-retarding nylon polyphenylene oxide composite material with ultralow |
| CN109735095A (en) * | 2018-11-28 | 2019-05-10 | 宁波墨西科技有限公司 | Graphene composite heat-conducting plastics and preparation method thereof |
| CN110016227A (en) * | 2019-05-05 | 2019-07-16 | 合肥工业大学 | A kind of nylon composite materials and preparation method thereof containing secondary surface modifying stuffing |
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