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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- 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
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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
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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
- C08K3/02—Elements
- C08K3/04—Carbon
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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
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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
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
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- 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
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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
- 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
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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
- 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
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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
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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 |
| 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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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01221447A (en) * | 1988-02-29 | 1989-09-04 | Nitto Kasei Co Ltd | Improved post-chlorinated vinyl chloride resin composition |
| CN101899209A (en) * | 2010-03-30 | 2010-12-01 | 金发科技股份有限公司 | Heat conductive insulation material and preparation method thereof |
| CN102807706A (en) * | 2012-07-27 | 2012-12-05 | 深圳市科聚新材料有限公司 | Polypropylene composite material and preparation method thereof |
| CN103073886A (en) * | 2012-12-25 | 2013-05-01 | 安徽科聚新材料有限公司 | Nylon 66 composite material, preparation method thereof and electronic device |
-
2012
- 2012-12-27 CN CN201210596290.1A patent/CN103897241A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01221447A (en) * | 1988-02-29 | 1989-09-04 | Nitto Kasei Co Ltd | Improved post-chlorinated vinyl chloride resin composition |
| CN101899209A (en) * | 2010-03-30 | 2010-12-01 | 金发科技股份有限公司 | Heat conductive insulation material and preparation method thereof |
| CN102807706A (en) * | 2012-07-27 | 2012-12-05 | 深圳市科聚新材料有限公司 | Polypropylene composite material and preparation method thereof |
| CN103073886A (en) * | 2012-12-25 | 2013-05-01 | 安徽科聚新材料有限公司 | Nylon 66 composite material, preparation method thereof and electronic device |
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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 |
| CN105906978A (en) * | 2016-05-27 | 2016-08-31 | 安徽胜利精密制造科技有限公司 | High heat dissipation composition for laptop shell preparation and preparation method thereof |
| 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 |
| CN106589741A (en) * | 2016-11-30 | 2017-04-26 | 安徽电气集团股份有限公司 | High-toughness and high-thermal-conductivity high-molecular material |
| WO2018107308A1 (en) * | 2016-12-16 | 2018-06-21 | Borouge Compounding Shanghai Co., Ltd. | Heat conductive pe composition for pipe applications |
| CN106957499A (en) * | 2017-03-17 | 2017-07-18 | 季文广 | Build PVC floor material of space heat conduction network and preparation method thereof |
| CN107286521A (en) * | 2017-08-01 | 2017-10-24 | 周佳瑜 | A kind of heatproof pvc material and preparation method thereof |
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| CN109764320B (en) * | 2019-01-11 | 2020-10-09 | 厦门大学 | Phase-change reinforced graphene plastic radiator and preparation method thereof |
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