CN106893182A - A kind of heat-conducting type polyethylene and preparation method thereof - Google Patents
A kind of heat-conducting type polyethylene and preparation method thereof Download PDFInfo
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- CN106893182A CN106893182A CN201710156566.7A CN201710156566A CN106893182A CN 106893182 A CN106893182 A CN 106893182A CN 201710156566 A CN201710156566 A CN 201710156566A CN 106893182 A CN106893182 A CN 106893182A
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- polyethylene
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/14—Solid materials, e.g. powdery or granular
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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- Engineering & Computer Science (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
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Abstract
The invention discloses a kind of heat-conducting type polyethylene and preparation method thereof, raw material and its mass fraction are the heat filling 0.5~20% on the basis of polyvinyl resin quality 100%；2,6 BHTs 0.03~0.15%；Double [2 methyl 4,6 2 (1,1 dimethyl ethyl) phenol] phosphorous acid ethyl esters 0.01~0.2%；43 (hydroxy phenyl of 3,5 di-t-butyl 4) propionates 0.01~0.3%；N, N ' ethylenebisstearamide 0.5~1.0%；Methyl hydroxystearate 0.2~0.8%.After polyethylene, heat filling, other auxiliary agents are pre-mixed, the extruding pelletization at 160 210 DEG C.The polyethylene heat filling of preparation is connected to the Graphene of polyethylene long-chain for chemical bond, when addition is 0.5~20%, the heat conductivility of polyethylene be improved significantly, thermal conductivity factor reaches 6.70W/mK.
Description
Technical field
The present invention is that, on a kind of heat-conducting type polyethylene and preparation method thereof, more particularly to a kind of new modified Graphene is led
The method that hot filler prepares heat-conducting type polyethylene.
Background technology
Polyethylene is a kind of excellent performance, nontoxic, cheap, easy processing shaping translucent crystalline polymer, in day
Often it is widely applied in life and industrial production.But the heat conductivility of polyethylene is identical with most polymers, heat conduction
Coefficient very little, heat transfer efficiency is poor, limits application of the polyethylene in heat conduction field.It is for example in winter ground radiation heating poly-
Ethene floor heating pipe, the heat conductivility of polyethylene ground heating pipes is poor, directly affects indoor temperature and heat source utilization efficiency.In order to obtain
The good polyethylene product of heat conductivility is obtained, it is economy, efficiently one of method that heat filling is added in resin matrix.
Graphene is new high performance carbon material, is the most strong most thin, maximum intensity that has now been found that, thermal conductivity
A kind of novel nano-material, scientist even foretell Graphene " will thoroughly change 21 century ".Graphene is used as heat filling
The heat conductivility for being added to improvement polymer in resin matrix has been attempted.The problem of presence is Graphene in resin matrix
Middle difficulties in dispersion, graphene platelet is reunited together, it is impossible to play the advantage of bigger serface.And Graphene and resin base material
Interface is presented phase separation feature, causes the heat conductivility of composite to improve undesirable.However, chemical bonding polyethylene long-chain
Graphene is added in polyvinyl resin matrix as heat filling, to improve the heat conductivility of polyethylene, at present still without phase
Close report.
The content of the invention
It is an object of the invention to provide a kind of heat-conducting type polyethylene, described heat-conducting type polyethylene has good thermal conductivity
Energy.
It is a further object of the present invention to provide the preparation method of above-mentioned heat-conducting type polyethylene.
Technical scheme is as follows：
A kind of heat-conducting type polyethylene, it is characterized in that composition and its mass fraction are as follows：It is with polyvinyl resin quality 100%
Benchmark, doses heat filling 0.5~20%；DBPC 2,6 ditertiary butyl p cresol 0.03~0.15%；Double [2- methyl -4,6- two (1,
1- dimethyl ethyls) phenol] phosphorous acid ethyl ester 0.01~0.2%；Four 3- (3,5- di-tert-butyl-hydroxy phenyls) propionic acid seasons
Doutrate 0.01~0.3%；N, N '-ethylenebisstearamide 0.5~1.0%；Methyl hydroxystearate 0.2~0.8%；
Heat filling is connected to the Graphene of polyethylene long-chain for chemical bond, and its structure is as follows：
Wherein：
It is Graphene.
The preparation method of heat-conducting type polyethylene of the invention, it is characterized in that by polyethylene, heat filling, 2,6- di-t-butyls
Paracresol, double [2- methyl -4,6- two (1,1- dimethyl ethyls) phenol] phosphorous acid ethyl esters, four 3- (3,5- di-t-butyls -4-
Hydroxy phenyl) propionate, N, N '-ethylenebisstearamide, methyl hydroxystearate premixing after, then will premix
Thing extruding pelletization at 160~210 DEG C.
In high-speed mixer, rotating speed is 50~80rpm for the premixing, and mixing time is 5~10 minutes, is prepared into
Even mixture.
The extruding pelletization is completed by double screw extruder, and the rotating speed of extruder is 120~240rpm, extruder
The temperature range of each work section is 160~180 DEG C of an area, 170~190 DEG C of 2nd area, three 180~200 DEG C of areas, four areas 190
~210 DEG C, 200~210 DEG C of 5th area.
The heat conductivility of polyethylene of the invention be improved significantly.When the chemical bonding polyethylene as heat filling is long
When the addition of the Graphene of chain is 0.5~20wt%, thermal conductivity factor can reach 6.70W/mK.
Specific embodiment
Embodiment 1：
The Graphene of polyethylene long-chain is connected to as heat filling from chemical bond, weighs quality 50g.Weigh successively again
Double [2- methyl -4,6- two (1,1- dimethyl ethyls) phenol] phosphorous of 10kg polyethylene, 3g2,6- BHTs, 20g
Sour ethyl ester, the 3- of 10g tetra- (3,5- di-tert-butyl-hydroxy phenyl) propionate, 100gN, N '-ethylenebis are stearic
Acid amides, 20g methyl hydroxystearates.Above-mentioned raw materials are added in high-speed mixer, setting rotating speed is 80rpm, stirs 5 points
Clock, is prepared into uniform mixture.
Melt blending extruding pelletization is carried out during the above-mentioned raw material for mixing is added into double screw extruder, extrusion rotating speed is
200rpm, the temperature setting of double screw extruder each work section is respectively 160 DEG C, 180 DEG C, 190 DEG C, 200 DEG C, 200 DEG C,
After extrusion heat-conducting type polyethylene is obtained through water-cooled, granulation.
The heat-conducting type polyethylene specimen prepared by the above method, Determination of conductive coefficients is carried out by transient hot wire technique, is tied
Fruit shows that, compared to blank group sample, the thermal conductivity factor of experimental group sample brings up to 0.76W/mK from 0.40W/mK.
Embodiment 2：
The Graphene of polyethylene long-chain is connected to as heat filling from chemical bond, weighs quality 2kg.Weigh successively again
Double [2- methyl -4,6- two (1,1- dimethyl ethyls) phenol] phosphorous of 10kg polyethylene, 15g2,6- BHTs, 8g
Sour ethyl ester, the 3- of 30g tetra- (3,5- di-tert-butyl-hydroxy phenyl) propionate, 75gN, N '-ethylenebis are stearic
Acid amides, 45g methyl hydroxystearates.Above-mentioned raw materials are added in high-speed mixer, setting rotating speed is 65rpm, stirs 7 points
Clock, is prepared into uniform mixture.
Melt blending extruding pelletization is carried out during the above-mentioned pellet for mixing is added into double screw extruder, extrusion rotating speed is
240rpm, the temperature setting of double screw extruder each work section is respectively 180 DEG C, 190 DEG C, 200 DEG C, 210 DEG C, 210 DEG C,
After extrusion heat-conducting type polyethylene is obtained through water-cooled, granulation.
The heat-conducting type polyethylene specimen prepared by the above method, Determination of conductive coefficients is carried out by transient hot wire technique, is tied
Fruit shows that, compared to blank group sample, the thermal conductivity factor of experimental group sample brings up to 6.70W/mK from 0.40W/mK.
Embodiment 3：
The Graphene of polyethylene long-chain is connected to as heat filling from chemical bond, weighs quality 800g.Weigh successively again
Double [2- methyl -4,6- two (1,1- dimethyl ethyls) phenol] phosphorous acid of 10kg polyethylene, 7g2,6- BHTs, 1g
Ethyl ester, the 3- of 1g tetra- (3,5- di-tert-butyl-hydroxy phenyl) propionate, 50gN, N '-ethylenebis stearoyl
Amine, 80g methyl hydroxystearates.Above-mentioned raw materials are added in high-speed mixer, setting rotating speed is 50rpm, is stirred 10 minutes,
It is prepared into uniform mixture.
Melt blending extruding pelletization is carried out during the above-mentioned pellet for mixing is added into double screw extruder, extrusion rotating speed is
120rpm, the temperature setting of double screw extruder each work section is respectively 170 DEG C, 170 DEG C, 180 DEG C, 190 DEG C, 205 DEG C,
After extrusion heat-conducting type polyethylene is obtained through water-cooled, granulation.
The heat-conducting type polyethylene specimen prepared by the above method, Determination of conductive coefficients is carried out by transient hot wire technique, is tied
Fruit shows that, compared to blank group sample, the thermal conductivity factor of experimental group sample brings up to 2.65W/mK from 0.40W/mK.
Exemplary description is done to the present invention above, it should which explanation, above example is only used for the present invention
It is further described, it is impossible to be interpreted as limiting the scope of the invention, in the case where core of the invention is not departed from,
Any simple deformation, modification or other skilled in the art can not spend the equivalent of creative work to each fall within
Protection scope of the present invention.
A kind of heat-conducting type polyethylene for disclosing and proposing of the invention and preparation method thereof, those skilled in the art can be by borrowing
Mirror present disclosure, the appropriate links such as condition route that change are realized, although the method for the present invention and technology of preparing have passed through preferably real
Apply example to be described, person skilled can be not substantially being departed from present invention, spirit and scope to described herein
Methods and techniques route be modified or reconfigure and realize final technology of preparing.In particular, own
Similar replacement and change is apparent to those skilled in the art, and they are considered as being included in essence of the invention
In god, scope and content.
Claims (4)
1. a kind of heat-conducting type polyethylene, it is characterized in that composition and its mass fraction are as follows：With polyvinyl resin quality 100% as base
Standard, doses heat filling 0.5~20%；DBPC 2,6 ditertiary butyl p cresol 0.03~0.15%；Double [(1,1- of 2- methyl -4,6- two
Dimethyl ethyl) phenol] phosphorous acid ethyl ester 0.01~0.2%；Four 3- (3,5- di-tert-butyl-hydroxy phenyls) propionic acid seasons penta
Four alcohol esters 0.01~0.3%；N, N '-ethylenebisstearamide 0.5~1.0%；Methyl hydroxystearate 0.2~0.8%；Lead
Hot filler is connected to the Graphene of polyethylene long-chain for chemical bond, and its structure is as follows：
Wherein：
It is Graphene.
2. the preparation method of the heat-conducting type polyethylene of claim 1, it is characterized in that by polyethylene, heat filling, the tertiary fourths of 2,6- bis-
Base paracresol, double [2- methyl -4,6- two (1,1- dimethyl ethyls) phenol] phosphorous acid ethyl esters, four 3- (3,5- di-t-butyls -
4- hydroxy phenyls) propionate, N, after N '-ethylenebisstearamide, methyl hydroxystearate premixing, then will be pre-
Mixed thing extruding pelletization at 160~210 DEG C.
3. method as claimed in claim 2, it is characterized in that premixing is in high-speed mixer, rotating speed is 50~80rpm, stirring
Time is 5~10 minutes, is prepared into uniform mixture.
4. method as claimed in claim 2, it is characterized in that extruding pelletization is completed by double screw extruder, extruder
Rotating speed is 120~240rpm, and the temperature range of extruder each work section is 160~180 DEG C of an area, two areas 170~190
DEG C, three 180~200 DEG C of areas, 190~210 DEG C of 4th area, 200~210 DEG C of 5th area.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710156566.7A CN106893182A (en) | 2017-03-16 | 2017-03-16 | A kind of heat-conducting type polyethylene and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710156566.7A CN106893182A (en) | 2017-03-16 | 2017-03-16 | A kind of heat-conducting type polyethylene and preparation method thereof |
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| CN106893182A true CN106893182A (en) | 2017-06-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107641235A (en) * | 2017-09-22 | 2018-01-30 | 辽宁利浩管业股份有限公司 | Build composite polyethylene material of space heat conduction network and preparation method thereof |
Citations (5)
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| CN102040714A (en) * | 2010-11-02 | 2011-05-04 | 浙江大学 | Preparation method of polymer-grafted graphene |
| CN102675512A (en) * | 2011-12-19 | 2012-09-19 | 河南科技大学 | Modified graphene reinforced polydicyclopentadiene composite material and preparation method thereof |
| CN105131385A (en) * | 2015-07-29 | 2015-12-09 | 天津金发新材料有限公司 | High-oxygen barrier property high-strength polyolefin heat conduction pipe and preparation method thereof |
| CN106084377A (en) * | 2016-06-15 | 2016-11-09 | 朱森 | A kind of material modified automotive hub of Graphene |
| CN106146756A (en) * | 2016-06-29 | 2016-11-23 | 常州轻工职业技术学院 | A kind of method of easy Graphene graft polyolefin |
-
2017
- 2017-03-16 CN CN201710156566.7A patent/CN106893182A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102040714A (en) * | 2010-11-02 | 2011-05-04 | 浙江大学 | Preparation method of polymer-grafted graphene |
| CN102675512A (en) * | 2011-12-19 | 2012-09-19 | 河南科技大学 | Modified graphene reinforced polydicyclopentadiene composite material and preparation method thereof |
| CN105131385A (en) * | 2015-07-29 | 2015-12-09 | 天津金发新材料有限公司 | High-oxygen barrier property high-strength polyolefin heat conduction pipe and preparation method thereof |
| CN106084377A (en) * | 2016-06-15 | 2016-11-09 | 朱森 | A kind of material modified automotive hub of Graphene |
| CN106146756A (en) * | 2016-06-29 | 2016-11-23 | 常州轻工职业技术学院 | A kind of method of easy Graphene graft polyolefin |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107641235A (en) * | 2017-09-22 | 2018-01-30 | 辽宁利浩管业股份有限公司 | Build composite polyethylene material of space heat conduction network and preparation method thereof |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170627 |
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| WD01 | Invention patent application deemed withdrawn after publication |