CN103897241A - Heat conductive plastics and manufacturing method thereof - Google Patents
Heat conductive plastics and manufacturing method thereof Download PDFInfo
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- CN103897241A CN103897241A CN201210596290.1A CN201210596290A CN103897241A CN 103897241 A CN103897241 A CN 103897241A CN 201210596290 A CN201210596290 A CN 201210596290A CN 103897241 A CN103897241 A CN 103897241A
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- 229920003023 plastic Polymers 0.000 title claims abstract description 62
- 239000004033 plastic Substances 0.000 title claims abstract description 62
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 239000011231 conductive filler Substances 0.000 claims abstract description 22
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 12
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 12
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims description 24
- 239000000945 filler Substances 0.000 claims description 23
- 239000000758 substrate Substances 0.000 claims description 16
- 239000012763 reinforcing filler Substances 0.000 claims description 15
- 239000003795 chemical substances by application Substances 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
- 239000007822 coupling agent Substances 0.000 claims description 13
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 12
- 241000276489 Merlangius merlangus Species 0.000 claims description 12
- 229960004643 cupric oxide Drugs 0.000 claims description 12
- 239000010439 graphite Substances 0.000 claims description 12
- 229910002804 graphite Inorganic materials 0.000 claims description 12
- 229920001903 high density polyethylene Polymers 0.000 claims description 12
- 239000004700 high-density polyethylene Substances 0.000 claims description 12
- 239000000243 solution Substances 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 10
- 239000002904 solvent Substances 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- 238000002360 preparation method Methods 0.000 claims description 7
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 238000000967 suction filtration Methods 0.000 claims description 6
- 238000001746 injection moulding Methods 0.000 claims description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 239000008187 granular material Substances 0.000 claims description 3
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 2
- 229920002292 Nylon 6 Polymers 0.000 claims description 2
- 229920002302 Nylon 6,6 Polymers 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 235000013312 flour Nutrition 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 2
- 229920001684 low density polyethylene Polymers 0.000 claims description 2
- 239000004702 low-density polyethylene Substances 0.000 claims description 2
- 229920001179 medium density polyethylene Polymers 0.000 claims description 2
- 239000004701 medium-density polyethylene Substances 0.000 claims description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 2
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 claims description 2
- -1 polypropylene Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 2
- 239000004800 polyvinyl chloride Substances 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 abstract description 4
- 239000003153 chemical reaction reagent Substances 0.000 abstract description 3
- 238000012856 packing Methods 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 239000003607 modifier Substances 0.000 abstract 1
- 239000000523 sample Substances 0.000 description 25
- 238000012360 testing method Methods 0.000 description 18
- 238000000034 method Methods 0.000 description 13
- 238000001291 vacuum drying Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 238000005453 pelletization Methods 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 229920001617 Vinyon Polymers 0.000 description 3
- 235000013339 cereals Nutrition 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000009775 high-speed stirring Methods 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 230000002742 anti-folding effect Effects 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000012764 mineral filler Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011160 polymer matrix composite Substances 0.000 description 1
- 238000009725 powder blending Methods 0.000 description 1
- 238000009747 press moulding Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
Classifications
-
- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/12—Making granules characterised by structure or composition
- B29B9/14—Making granules characterised by structure or composition fibre-reinforced
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/72—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
- B29B7/7461—Combinations of dissimilar mixers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/88—Adding charges, i.e. additives
- B29B7/90—Fillers or reinforcements, e.g. fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/12—Making granules characterised by structure or composition
-
- 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
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- 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
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
-
- 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
- B29C2948/92609—Dimensions
- B29C2948/92657—Volume or quantity
-
- 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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- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2248—Oxides; Hydroxides of metals of copper
-
- 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
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention provides heat conductive plastics and a manufacturing method thereof. Particularly, the heat conductive plastics comprise 20-80 percent by weight of plastic matrix, 0-20 percent by weight of toughening packing, 5-60 percent by weight of thermal conductive filler, 0.5-5 percent by weight of coupling reagent, 0.5-5 percent by weight of antioxidant and 0.5-5 percent by weight of flow modifier.
Description
Technical field
The present invention relates to general-purpose plastics technical field, relate in particular to heat-conducting plastic preparation field.
Background technology
At present, there is heat conductivility and the conflicting problem of antiseptic property in the thermally conductive material on market in traditional anticorrosion equipment, and as the material such as metal, pottery is difficult to meet the anticorrosion demand of acid-basicity, the chemical industry equipments such as ceramic tubulation road, reactor are very easily by alkaline corrosion.Although iron and steel excellent thermal conductivity, Corrosion Protection is poor, and the direct economic loss that China causes due to steel corrosion is every year at least 20,000,000,000 yuan.Macromolecular material has lightweight, resistance to chemical attack, and easily machine-shaping, electrical insulation capability excellence, therefore the research and development of thermal conductivity plastics are imperative.
In order to obtain the plastics of high thermoconductivity, existing patented technology focuses on the aspect such as selection and surface modification to heat conductive filler.Usual method is to add the filler of high thermoconductivity, and as the carbon fiber with high length-diameter ratio and boron nitride coordinate using highdensity metal, metal oxide as filler, the thermal conductivity of its product making is 20W/mK (ZL99815810.0); Or using the insulating packing such as metal oxide, silicon carbide as filler, the thermal conductivity of its product making is (ZL200510101700.0) between 2～4W/mK; Or combine as filler (ZL02112481.7) using various ceramic fibers or Graphite Powder 99 or carbon black or carbon fiber or metal powder.
In the research of current heat-conductive composite material, the affinity of filler and plastic substrate is poor, poor with the bonding force of matrix, and disperse irregular, when thermal conductivity improves, physical strength decline has restricted heat-conductive composite material application in practice, toughness reinforcing filler, after super-refinement and surface active, can overcome its original shortcoming to a great extent.
In view of this, necessaryly provide a kind of heat-conducting plastic with high thermal conductivity and excellent mechanical performances.
Summary of the invention
Object of the present invention is intended to solve at least one aspect of the above-mentioned problems in the prior art and defect.
One of object of the present invention is to provide a kind of possess good heat conductivility and the heat-conducting plastic of mechanical property simultaneously.
An also object of the present invention is to provide a kind of method of manufacturing heat-conducting plastic as above.
According to an aspect of the present invention, provide a kind of heat-conducting plastic, described heat-conducting plastic comprises plastic substrate, heat conductive filler, toughness reinforcing filler, coupling agent, flow ability modifying agent, antioxidant and solvent, and their mass percentage content is respectively:
Plastic substrate 20～80%,
Heat conductive filler 5～60%,
Toughness reinforcing filler 0～20%,
Coupling agent 0.5～5%,
Flow ability modifying agent 0.5～5%,
Antioxidant 0.5～5%, and
Solvent 0～80%.
Preferably, described plastic substrate is a kind of in high density polyethylene(HDPE), medium-density polyethylene, Low Density Polyethylene, polyvinyl chloride, nylon 6, nylon 66, polypropylene or their arbitrary combination.
Preferably, described heat conductive filler is a kind of in graphite, silica flour, silicon dioxide powder, copper powder, aluminium powder, iron powder, aluminum oxide powder, cupric oxide powder, ferric oxide or their arbitrary combination, and the particle diameter of heat conductive filler is 0.5～50 μ m.
Preferably, a kind of in the multipolymer that described toughness reinforcing filler is glass fibre, oyster shell whiting, ethene and octene or their arbitrary combination, the particle diameter of toughness reinforcing filler is 0.5～50 μ m.
Preferably, described solvent is a kind of in whiteruss, Virahol, acetone or their arbitrary combination.
According to another aspect of the present invention, provide a kind of preparation method who manufactures described heat-conducting plastic, comprised step:
(1) solvent and coupling agent were mixed into solution than 10: 1 according to volume, be 70%～80%: 20%～30% according to the volume ratio of heat conductive filler and described solution, be to stir 10～40 minutes under 80 ℃～110 ℃, the stirring velocity condition that is 100-500r/min in temperature, the filler that then suction filtration was processed;
(2) plastic substrate is mixed with the filler of processing, antioxidant, flow ability modifying agent, to obtain mixture;
(3) mixture is transferred to forcing machine, is 190～220 ℃ in temperature and extrudes manufacture particle,
Wherein, described heat-conducting plastic comprises that mass percent is 20～80% plastic substrate, the toughness reinforcing filler that mass percent is 0～20%, the heat conductive filler that mass percent is 5～60%, the antioxidant that mass percent is 0.5～5%, the flow ability modifying agent that mass percent is 0.5～5%.
Preferably, by the particle injection molding of gained, the physical strength of gained sample is in the scope of 10～40MPa.
Preferably, by molded the granule die of gained, the thermal conductivity of gained sample is in the scope of 0.2～2W/ (mk).
Unlike the prior art, generally select single heat conductive filler to improve the thermal conductivity of plastic substrate, the present invention adopts two or more heat conductive filler synergies to improve the heat conductivility of plastics.Conventionally after adding heat conductive filler, can cause physical strength obviously to decline, solve this technical problem by coupling agent treatment filler and the ultra-fine toughness reinforcing filler of filling in the present invention.
Due to the random entanglement of plastic molecules chain and there is very high relative molecular mass, therefore be difficult to complete crystallization.Due to the polymolecularity of relative molecular mass, molecular size is not exclusively equal, is also difficult to form perfect lattice.In addition the vibration of molecular chain has scattering process to phonon, so the thermal conductivity of plastics is very little.
At present external high heat conductive insulating macromolecular material is still mix type, exactly the mineral filler of certain heat conduction is blended in the resin material with particular requirement.With inorganic heat conductive filler replacement part polymer, its result will make the heat conductivility of whole insulation system improve comprehensively.
The physical strength of heat-conductive composite material not only depends on itself of plastic substrate and heat conductive filler, and depends on the degree that particle surface is moistening.This is because the wetness degree of filling surface affects the thermal boundary at bonding degree, matrix and the filler interface of filler and matrix, dispersiveness, the add-on of filler etc. of filler, thereby affects the physical strength of system.
Beneficial effect of the present invention is: described heat-conducting plastic comprises that mass percent is 20～80% plastic substrate, the toughness reinforcing filler that mass percent is 0～20%, the heat conductive filler that mass percent is 5～60%, the coupling agent that mass percent is 0.5～5%, the antioxidant that mass percent is 0.5～5%, the flow ability modifying agent that mass percent is 0.5～5%.The heat-conducting plastic that the present invention obtains not only has high heat conductivility and good mobility, and physical strength is high, and it is good that counter-bending anti-folding is turned round performance.Selected toughness reinforcing filler has the advantages such as cost is low, environmental protection, successful.
Accompanying drawing explanation
These and/or other aspect of the present invention and advantage are understood below in conjunction with becoming in accompanying drawing description of preferred embodiments obviously and easily, wherein:
Fig. 1 is the preparation flow figure of heat-conducting plastic according to an embodiment of the invention.
Embodiment
Below by embodiment, and by reference to the accompanying drawings 1, technical scheme of the present invention is described in further detail.In specification sheets, same or analogous drawing reference numeral is indicated same or analogous parts.Followingly with reference to accompanying drawing, the explanation of embodiment of the present invention is intended to present general inventive concept of the present invention to make an explanation, and does not should be understood to a kind of restriction of the present invention.
Heat-conducting plastic of the present invention, is prepared from by following component (by weight): described heat-conducting plastic comprises that mass percent is 20～80% plastic substrate, the toughness reinforcing filler that mass percent is 0～20%, the heat conductive filler that mass percent is 5～60%, the coupling agent that mass percent is 0.5～5%, the solvent that mass percent is 0～80%, the antioxidant that mass percent is 0.5～5%, the flow ability modifying agent that mass percent is 0.5～5%.
Main raw material of the present invention and reagent are referring to table 1.
Table 1 main raw material and reagent
Referring to Fig. 1, the invention provides a kind of heat-conducting plastic with high mechanical strength and excellent heat conducting performance with and manufacture method.The manufacturing step of heat-conducting plastic of the present invention is as follows:
(1) solvent Virahol and coupling agent were mixed into solution than 10: 1 according to volume, be 70%～80%: 20%～30% according to the volume ratio of filler and described solution, be to stir 10～40 minutes under 80 ℃～110 ℃, the stirring velocity condition that is 100-500r/min in temperature, the filler that then suction filtration was processed;
(2) plastic substrate is mixed with the filler of processing, antioxidant, flow ability modifying agent, to obtain mixture;
(3) mixture is transferred to forcing machine, be 190～220 ℃ in temperature and extrude manufacture particle;
(4), by the injection molding in the injector of 200～220 ℃ of gained particle, on universal testing machine, measure the physical strength of sample;
(5), by the compression molding on the vulcanizing press of 160～200 ℃ of gained particle, measure the thermal conductivity of sample with Determination of conductive coefficients instrument.
Particularly, in step (3), this forcing machine actual conditions is: it is as shown in table 2 that the barrel of this forcing machine is divided into eight sections and its actual temp.In addition, table 2 also shows the parameters such as head temperature, screw speed, pulling speed, rate of feeding.
The temperature that table 2 barrel is each section and extrude the processing parameter of processing
| One section of temperature | 190℃ |
| Two sections of temperature | 195℃ |
| Three sections of temperature | 195℃ |
| Four sections of temperature | 200℃ |
| Five sections of temperature | 200℃ |
| Six sections of temperature | 205℃ |
| Seven sections of temperature | 205℃ |
| Eight sections of temperature | 200℃ |
| Head temperature | 190℃ |
| Screw speed | 7.15×12r/min |
| Pulling speed | 300r/min |
| Rate of feeding | 4HZ |
Particularly, while manufacturing in an embodiment of the present invention heat conduction vinyon, extrusion equipment can be single screw extrusion machine, twin screw extruder.As understood by those skilled in the art, extrusion equipment also can adopt the extrusion equipment of other type.
Particularly, in step (4), this injector actual conditions is: it is as shown in table 3 that the barrel of this injector is divided into four sections and its actual temp.In addition, table 3 also shows the parameters such as the pressure versus flow of injector.
The barrel pressure of table 3 injector and the parameter of each several part
| Barrel | First paragraph | Second segment | The 3rd section | The 4th section |
| Pressure | 45MP | 45MP | 35MP | 60MP |
| Flow | 40 | 40 | 35 | 60 |
| Temperature | 210℃ | 215℃ | 220℃ | 210℃ |
Particularly, while manufacturing in an embodiment of the present invention heat conduction vinyon, injector can be vertical injection molding machine, horizontal injection machine, all electric injector.As understood by those skilled in the art, injector also can adopt the injection-moulding device of other type.
Particularly, while manufacturing in an embodiment of the present invention heat conduction vinyon, vulcanizing press can be pillar vulcanizing press, horizontal vulcanizing press, side board type vulcanizing press.As understood by those skilled in the art, vulcanizing press also can adopt the molding apparatus of other type.
Mechanical strength test
Tensile strength test: at room temperature place after 24 hours, on universal testing machine, test, testing standard GB/T1040-92,22 ℃ of probe temperatures, in tension test, draw speed is 50mm/min, chooses 7～8 samples and tests, and get its mean value.
Folding strength test: at room temperature place after 24 hours, on universal testing machine, test, testing standard: GB9341-2000,22 ℃ of probe temperatures, rate of bending is 1mm/min, specimen length 120mm, length of support: 48mm, choose 7～8 samples for every group and test, and get its mean value.
The processing of heat conduction sample and test
Select same recipe raw material, carry out fragmentation processing, according to different proportionings, be uniformly mixed, be processed into 100mm × 100mm, the material of thick 10mm size, compressing tablet program is for first colding pressing Preblend, then at the condition lower sheeting 20min of 170 ℃, exhaust therebetween 5 times, release 5 times.After hot pressing finishes, then mould is moved to the 15min that colds pressing on another vulcanizing press, die sinking sampling in the time that die temperature approaches room temperature.Compressing tablet is cut into respectively to standard test specimen, is placed in dryer and dries, in order to performance test.In every group of formula, get 4 samples and stack up, open the heater switch of Determination of conductive coefficients instrument, observe the temperature changing process of heating surface.In the time that the temperature difference on two surfaces is constant, difference curve is walked at ordinary times, shows the feature in temperature field when unstable conduction reaches quasi-steady state, can click " end " button, can obtain the thermal conductivity of every group of formula.In the time that following embodiment is tested, carry out according to above-mentioned method respectively.
Specifically describe by the following examples heat-conducting plastic of the present invention with and manufacture method.
Embodiment 1
Referring to accompanying drawing 1, the idiographic flow of embodiments of the invention 1 is:
Early-stage preparations step: the vacuum-drying 12h under 80 ℃ of conditions high density polyethylene(HDPE) (HDPE) and graphite, cupric oxide and oyster shell whiting are placed on vacuum-drying 4h under 110 ℃ of conditions.
Preparation process: a certain amount of titanate coupling agent ZJ-101 is dissolved in and makes solution in Virahol with the mass ratio of 1: 10, volume ratio according to filler and solution is 70%～80%: 20%～30%, wherein oyster shell whiting is high-speed stirring 20 minutes under 100 ℃～110 ℃, the condition of rotating speed 250r/min in temperature, cupric oxide and graphite are induction stirring 40 minutes under 80 ℃～90 ℃, the condition of rotating speed 250r/min in temperature, and the filler that then suction filtration obtains is dry in vacuum drying oven; Mass percentage content is respectively to 70% HDPE, 8% graphite, 17% cupric oxide, 3.5% oyster shell whiting, 0.6% flow ability modifying agent AM-80,0.5% hindered phenol antioxygen 264 mixes in mixing machine high speed, then mixture being transferred in twin screw extruder, is 190～220 ℃ of extruding pelletizations in temperature; Finally the plastic grain obtaining is made to heat-conducting plastic product by vulcanizing press and injector, recording its thermal conductivity is that 0.956W/ (mk), folding strength are that 20.99MPa, tensile strength are 30.75MPa.
This forcing machine actual conditions is: it is shown in table 2 described above that this forcing machine is divided into eight sections and its actual temp.Table 2 also shows the parameters such as head temperature, screw speed, pulling speed, rate of feeding in addition.
This injector actual conditions is: it is shown in table 3 described above that this injector is divided into four sections and its actual temp.Table 3 also shows the parameters such as the pressure versus flow of injector.Gained sample is tested according to above-mentioned mechanical strength test method.
This sample at vulcanizing press condition of molding is: carry out the machine-shaping of sample according to the processing of above-mentioned heat conduction sample and the method in test.Gained sample is tested according to above-mentioned Determination of conductive coefficients method.
Embodiment 2
Referring to accompanying drawing 1, the idiographic flow of embodiments of the invention 2 is:
The vacuum-drying 12h under 80 ℃ of conditions HDPE and graphite, cupric oxide and oyster shell whiting are placed on vacuum-drying 4h under 110 ℃ of conditions; A certain amount of titanate coupling agent ZJ-101 is dissolved in and in Virahol, makes solution with the mass ratio of 1: 10, volume ratio according to filler and solution is 70%～80%: 20%～30%, wherein oyster shell whiting is high-speed stirring 20 minutes under 100 ℃～110 ℃, the condition of rotating speed 250r/min in temperature, cupric oxide and graphite are induction stirring 40 minutes under 80 ℃～90 ℃, the condition of rotating speed 250r/min in temperature, and the filler that then suction filtration obtains is dry in vacuum drying oven; Mass percentage content is respectively to 70% HDPE, 12% graphite, 17% cupric oxide, 4% oyster shell whiting, 0.6% flow ability modifying agent AM-80,0.5% hindered phenol antioxygen 264 mixes in mixing machine high speed, then mixture being transferred in twin screw extruder, is 190～220 ℃ of extruding pelletizations in temperature; Finally the plastic grain obtaining is made to heat-conducting plastic product by vulcanizing press and injector, recording its thermal conductivity is that 1.109W/ (mk), folding strength are that 19.97MPa, tensile strength are 31.74MPa.
This forcing machine actual conditions is: it is shown in table 2 described above that this forcing machine is divided into eight sections and its actual temp.Table 2 also shows the parameters such as head temperature, screw speed, pulling speed, rate of feeding in addition.
This injector actual conditions is: it is shown in table 3 described above that this injector is divided into four sections and its actual temp.Table 3 also shows the parameters such as the pressure versus flow of injector.Gained sample is tested according to above-mentioned mechanical strength test method.
This sample at vulcanizing press condition of molding is: carry out the machine-shaping of sample according to the processing of above-mentioned heat conduction sample and the method in test.Gained sample is tested according to above-mentioned Determination of conductive coefficients method.
Embodiment 3
Referring to accompanying drawing 1, the idiographic flow of embodiments of the invention 3 is:
The vacuum-drying 12h under 80 ℃ of conditions HDPE and graphite, cupric oxide and oyster shell whiting are placed on vacuum-drying 4h under 110 ℃ of conditions; A certain amount of titanate coupling agent ZJ-101 is dissolved in and in Virahol, makes solution with the mass ratio of 1: 10, volume ratio according to filler and solution is 70%～80%: 20%～30%, wherein oyster shell whiting is high-speed stirring 20 minutes under 100 ℃～110 ℃, the condition of rotating speed 250r/min in temperature, cupric oxide and graphite are induction stirring 40 minutes under 80 ℃～90 ℃, the condition of rotating speed 250r/min in temperature, and the filler that then suction filtration obtains is dry in vacuum drying oven; Mass percentage content is respectively to 70% HDPE, 12% graphite, 15% cupric oxide, 3% oyster shell whiting, 0.6% flow ability modifying agent AM-80,0.5% hindered phenol antioxygen 264 mixes in mixing machine high speed, then mixture being transferred in twin screw extruder, is 190～220 ℃ of extruding pelletizations in temperature; Finally the plastic grain obtaining is made to heat-conducting plastic product by vulcanizing press and injector, recording its thermal conductivity is that 1.012W/ (mk), folding strength are that 19.77MPa, tensile strength are 32.58MPa.
This forcing machine actual conditions is: it is shown in table 2 described above that this forcing machine is divided into eight sections and its actual temp.Table 2 also shows the parameters such as head temperature, screw speed, pulling speed, rate of feeding in addition.
This injector actual conditions is: it is shown in table 3 described above that this injector is divided into four sections and its actual temp.Table 3 also shows the parameters such as the pressure versus flow of injector.Gained sample is tested according to above-mentioned mechanical strength test method.
This sample at vulcanizing press condition of molding is: carry out the machine-shaping of sample according to the processing of above-mentioned heat conduction sample and the method in test.Gained sample is tested according to above-mentioned Determination of conductive coefficients method.
In the present invention, the physical strength of gained sample is in the scope of 10～40MPa.
In the present invention, by molded the granule die of gained, the thermal conductivity of gained sample is in the scope of 0.2～2W/ (mk).
Powder blending means preparation for thermal-conductive polymer matrix composites of the present invention, mix on high-speed mixer according to certain ratio with heat conductive filler powder by polymer powder, then by twin screw extruder extruding pelletization, through injector injection and the required sample of the various performance tests of vulcanizing press moulding.
Prove by experiment, the high mechanical strength heat-conducting plastic that adopts above-described embodiment to prepare, thermal conductivity is 2～8 times of common plastics thermal conductivity.Graphite is beneficial to the raising of thermal conductivity than cupric oxide, but also larger to the Effect on Mechanical Properties of plastics.In addition, oyster shell whiting improves obviously the mechanical property of heat-conducting plastic, and in the time that content is 3.5% left and right, loading level is optimum value.
It should be noted that in the time preparing heat-conducting plastic, its each moiety has only been selected wherein one or more of as example, also can realize of the present invention object in the alternative that other place is mentioned herein.For for simplicity, differ and one illustrate at this.
Although some embodiment of this present general inventive concept are shown and explanation, those skilled in the art will appreciate that, in the case of the principle and spirit that do not deviate from this present general inventive concept, can make a change these embodiment, scope of the present invention limits with claim and their equivalent.
Claims (8)
1. a heat-conducting plastic, is characterized in that, described heat-conducting plastic comprises plastic substrate, heat conductive filler, toughness reinforcing filler, coupling agent, flow ability modifying agent, antioxidant and solvent, and their mass percentage content is respectively:
Plastic substrate 20～80%,
Heat conductive filler 5～60%,
Toughness reinforcing filler 0～20%,
Coupling agent 0.5～5%,
Flow ability modifying agent 0.5～5%,
Antioxidant 0.5～5%, and
Solvent 0～80%.
2. heat-conducting plastic according to claim 1, is characterized in that, described plastic substrate is a kind of in high density polyethylene(HDPE), medium-density polyethylene, Low Density Polyethylene, polyvinyl chloride, nylon 6, nylon 66, polypropylene or their arbitrary combination.
3. heat-conducting plastic according to claim 1, it is characterized in that, described heat conductive filler is a kind of in graphite, silica flour, silicon dioxide powder, copper powder, aluminium powder, iron powder, aluminum oxide powder, cupric oxide powder, ferric oxide or their arbitrary combination, and the particle diameter of heat conductive filler is 0.5～50 μ m.
4. heat-conducting plastic according to claim 1, is characterized in that, a kind of in the multipolymer that described toughness reinforcing filler is glass fibre, oyster shell whiting, ethene and octene or their arbitrary combination, and the particle diameter of toughness reinforcing filler is 0.5～50 μ m.
5. heat-conducting plastic according to claim 1, is characterized in that, described solvent is a kind of in whiteruss, Virahol, acetone or their arbitrary combination.
6. manufacture, according to a preparation method for heat-conducting plastic as claimed in claim 1, is characterized in that, comprises step:
(1) solvent and coupling agent were mixed into solution than 10: 1 according to volume, be 70%～80%: 20%～30% according to the volume ratio of heat conductive filler and described solution, be to stir 10～40 minutes under 80 ℃～110 ℃, the stirring velocity condition that is 100-500r/min in temperature, the filler that then suction filtration was processed;
(2) plastic substrate is mixed with the filler of processing, antioxidant, flow ability modifying agent, to obtain mixture;
(3) mixture is transferred to forcing machine, is 190～220 ℃ in temperature and extrudes manufacture particle,
Wherein, described heat-conducting plastic comprises that mass percent is 20～80% plastic substrate, the toughness reinforcing filler that mass percent is 0～20%, the heat conductive filler that mass percent is 5～60%, the antioxidant that mass percent is 0.5～5%, the flow ability modifying agent that mass percent is 0.5～5%.
7. particle according to claim 6, is characterized in that: by the particle injection molding of gained, the physical strength of gained sample is in the scope of 10～40MPa.
8. particle according to claim 6, is characterized in that: by molded the granule die of gained, the thermal conductivity of gained sample is in the scope of 0.2～2W/ (mk).
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| CN104151706A (en) * | 2014-08-12 | 2014-11-19 | 佛山市日丰企业有限公司 | Polypropylene composite material and preparation method thereof |
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| CN104387694A (en) * | 2014-11-04 | 2015-03-04 | 张桂华 | PVC (polyvinyl chloride) alloy material |
| CN105061950A (en) * | 2015-09-23 | 2015-11-18 | 界首市申发雨鞋有限责任公司 | Modified heat-resistant plastic |
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| CN106009150A (en) * | 2016-05-31 | 2016-10-12 | 苏州东威连接器电子有限公司 | High density electronic connecting wire |
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| WO2018107308A1 (en) * | 2016-12-16 | 2018-06-21 | Borouge Compounding Shanghai Co., Ltd. | Heat conductive pe composition for pipe applications |
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