CN110387118A - A kind of novel heat-conducting plastics and its production method - Google Patents
A kind of novel heat-conducting plastics and its production method Download PDFInfo
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- CN110387118A CN110387118A CN201810360523.5A CN201810360523A CN110387118A CN 110387118 A CN110387118 A CN 110387118A CN 201810360523 A CN201810360523 A CN 201810360523A CN 110387118 A CN110387118 A CN 110387118A
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Abstract
A kind of novel heat-conducting plastics and its production method, belong to field of material technology.The heat-conducting plastic is made of resin, additive, thermally conductive toughening filler A and thermally conductive toughening filler B, the mass percentage content of the resin, additive, thermally conductive toughening filler A and thermally conductive toughening filler B are as follows: resin 1~65%, thermally conductive toughening filler A 18~94%, thermally conductive toughening filler B 0~55% and additive 0~10%.High thermal conductivity plastics disclosed in this invention, production cost is low, while can take into account preferable thermally conductive and insulation performance, can be used for the fields such as LED illumination, automobile, electronic apparatus.
Description
Technical field
The invention belongs to field of material technology, and in particular to a kind of novel heat-conducting plastics and its production method.
Background technique
LED has energy conservation and environmental protection, small in size, light emission color temperature is friendly, the service life is long etc. as a kind of novel energy-conserving light source product
Advantage is widely applied in the every field for producing and living.The work temperature in the light extraction efficiency of LED and service life and chip
Degree has direct relationship, therefore the heat dissipation performance of LED chip and lamp housing really is the key point of great power LED application.Mesh
Plastics are widely applied in the lamps and lanterns manufacture of LED industry by preceding people, however the low thermal conductivity of most of plastics limits
Their application.Improve the approach of plastics thermal conductivity: first is that synthetic material inherently has high thermal conductivity but expensive
Resin matrix, such as polyaniline, polypyrrole with Thermal conductivity；Second is that using have high thermal conductivity filler filled plastics come
It realizes, such as aluminium powder, copper powder, metal oxide filler such as aluminium oxide, bismuth oxide, beryllium oxide, magnesia and zinc oxide etc. are inorganic
Non-metallic fillers such as graphite, silicon carbide, glass fibre etc., such as using metal oxide, silicon carbide insulating packing as filler, make
The thermal coefficient of product is obtained between 2~4 W/mK (ZL200510101700.0).But currently, most of heat-conducting plastic is led
The problems such as hot property is not high enough, and mechanical performance is unstable or heating conduction is fine but stability is bad, on the high side is still tired
LED illumination manufacturing enterprise is disturbed, this is because between various heat fillings and their property features between resin differ
It is larger, often due to a variety of causes such as uneven, big, poor compatibility of nature parameters difference of mixing cause when simply mutually mixing
Heat-conducting plastic overall performance can not effectively improve.
Grown rapidly as LED illuminates application, and move towards consuming public, the automation size production of lamps and lanterns product, at
The requirements such as this control, safety, lightweight also increasingly improve, and the market demand of heat-conducting plastic also increases year by year, to LED light shell
The requirement of heat dissipation performance be also continuously improved.Currently, most of heat-conducting plastic heating conduction is not high enough, mechanical performance is unstable,
Or heating conduction is fine but stability is bad, it is on the high side the problems such as still annoying LED illumination manufacturing enterprise.Therefore, it seeks
Ask that a kind of production cost is low, thermally conductive and high insulation performance novel heat-conducting plastics have very big commercial value.
Summary of the invention
In view of the problems of the existing technology, it is an object of the invention to design, to provide a kind of production cost low and can take into account
The technical solution of the thermally conductive and high novel heat-conducting plastics of insulation performance and its production method.
A kind of novel heat-conducting plastics, it is characterised in that the heat-conducting plastic is by resin, additive, thermally conductive toughening filler
A and thermally conductive toughening filler B composition, the resin, additive, thermally conductive toughening filler A and thermally conductive toughening filler B quality percentage
Compare content are as follows:
Resin 1~65%
Thermally conductive toughening filler A 18~94%
Thermally conductive toughening filler B 0~55%
Additive 0~10%；
The resin is polyamide, polycarbonate, polybutylene terephthalate (PBT), polyethylene terephthalate, gathers
Formaldehyde, polyphenylene oxide, acrylonitrile-butadiene-styrene (ABS), polypropylene, polyphenylene sulfide, polysulfones, polyethylene, poly-methyl methacrylate
One of ester, polytetrafluoroethylene (PTFE), polystyrene, polyvinyl chloride or any several mixture；
The thermally conductive toughening filler A is quartz, mica, diopside, wollastonite, amphibole, calcite, bauxite, feldspar, weight crystalline substance
Stone, serpentine, lime stone, gypsum, nepheline, talcum, fluorite, leucite, dolomite, marble, mullite, one in kaolinite
Kind or any several mixture；
The thermally conductive toughening filler B is one of glass fibre, rubber, carbon nanotube, graphite or any several mixing
Object.
A kind of novel heat-conducting plastics, it is characterised in that the resin, additive, thermally conductive toughening filler A and lead
The mass percentage content of hot toughening filler B are as follows:
Resin 2~60%
Thermally conductive toughening filler A 20~91%
Thermally conductive toughening filler B 2~45%
Additive 0~8%.
A kind of novel heat-conducting plastics, it is characterised in that the resin, additive, thermally conductive toughening filler A and lead
The mass percentage content of hot toughening filler B are as follows:
Resin 5~50%
Thermally conductive toughening filler A 30~80%
Thermally conductive toughening filler B 10~40%
Additive 2~6%.
A kind of novel heat-conducting plastics, it is characterised in that the additive is polyethylene glycol, polyvinyl alcohol, lemon
Sour sodium lures red, quinoline yellow, famille rose, acid red, propylene glycol, glycerol, glycol, diethylene glycol (DEG), triethylene glycol, tetraethylene glycol, three ethyl alcohol
Amine, diethanol amine, silane coupling agent, Suramin Sodium, anthraquinone disulfonic acid salt and its derivative, alkylbenzene sulfonate and its derivative
Object, alkyl diphenyl ether disulfonate and its derivative, alkylnaphthalene sulfonate and its derivative, Alkyl dinaphthyl ether sulfonate and its spread out
One of biology or any several mixture.
The production method of a kind of novel heat-conducting plastics, it is characterised in that comprise the following steps that:
(1) thermally conductive toughening will be made into thermally conductive toughening filler B and additive the addition water or/and organic solvent of the formula ratio to fill out
Expect the mixed liquor of B and is added to the container；
(2) the thermally conductive toughening filler A of the formula ratio is added in the mixed liquor of this thermally conductive toughening filler B again fills out thermally conductive toughening
Material B occurs interaction with thermally conductive toughening filler A and is combined to obtain thermally conductive toughening filler A/B complex mixed liquor；
(3) after this thermally conductive toughening filler A/B complex mixed liquor stratification, this thermally conductive toughening filler A/B being layered is answered
Fit mixed liquor removes solvent to get thermally conductive toughening filler A/B complex material is arrived；
(4) plastics molding process is used after mixing this thermally conductive toughening filler A/B complex material with the resin of the formula ratio
Heat-conducting plastic product is made.
The production method of a kind of novel heat-conducting plastics, it is characterised in that by thermally conductive toughening in the step (1)
The surface tension viscosity of the mixed liquor for the thermally conductive toughening filler B being made into water or/and organic solvent is added in filler B and additive
Parameter value is 1~72000, surface tension and viscosity common definition of the surface tension viscosity parameter by mixed liquor, institute
The numerical value for the surface tension viscosity parameter stated=mixed liquor surface tension numerical value × viscosity of mixed liquid value, surface tension numerical value with
MN/m is unit, and for viscosity as unit of mPas, surface tension value range is 19~67, viscosity value range is 0.1~
1500。
The production method of a kind of novel heat-conducting plastics, it is characterised in that thermally conductive toughening is filled out in the step (3)
Surface tension viscosity parameter value after expecting A/B complex mixed liquor stratification is 23~69000, the surface tension
Surface tension and viscosity common definition of the viscosity parameter by mixed liquor, numerical value=mixing of the surface tension viscosity parameter
Liquid surface tension numerical value × viscosity of mixed liquid value, surface tension numerical value is as unit of mN/m, and viscosity is as unit of mPas, surface
Tension value range is 32~74, and viscosity value range is 0.6~1450.
The production method of a kind of novel heat-conducting plastics, it is characterised in that thermally conductive toughening is filled out in the step (3)
Expect that A/B complex mixed liquor removal solvent method is specially centrifugation, suction filtration, heating, drying, freeze-drying, spray drying or other
It is conventional except one of solvent means or a variety of.
The production method of a kind of novel heat-conducting plastics, it is characterised in that the thermal conductivity of the novel heat-conducting plastics is
2.5~4.5 W/mK.
A kind of novel heat-conducting plastics are as thermally conductive and/or mechanics toughening reinforcing material application.
A kind of production method of novel heat-conducting plastics, it is characterised in that plastic shaping work in the step (4)
Skill is injection moulding, extrusion molding, compression moulding, blow molding or cast molding.
It is compared with existing technology, the invention has the following advantages:
High thermal conductivity plastics disclosed in this invention, production cost is low, while can take into account preferable thermally conductive and insulation performance, can be used for
The fields such as LED illumination, automobile, electronic apparatus, specifically have the beneficial effect that: compared to simply that various thermally conductive toughening fillers are straight
It connects and is stirred, it can be in table in water or/and other organic solvents that thermally conductive toughening filler A used is utilized in the method for the present invention
The characteristic of face electrification adjusts mixed liquor surface tension and viscosity parameter by additive, various thermally conductive toughening fillers is made to pass through electricity
Lotus interaction is efficiently combined within the reunion and mixing avoided when heat filling powder directly mixes together in molecule rank
The problems such as uneven, so as to play optimal modified gain effect, and is greatly decreased the additive amount of heat filling simultaneously, makes
The thermally conductive toughening compounded mix obtained has optimal cost performance, and then can reduce being applied to for heat filling modified plastics
This.
Specific embodiment
The present invention will be further described combined with specific embodiments below.
Embodiment 1
Content calculates by mass percentage, takes 6% carbon nanotube and 1% additive (polyvinyl alcohol, sodium citrate and cetyl benzene
Sodium sulfonate) it is added to the water and is made into carbon nano-tube aqueous solutions, and be added into container, measure the solution (surface tension viscosity)
Parameter value is 46, then takes 62% thermally conductive toughening filler A(lime stone, barite and gypsum) it is added in this carbon nano-tube aqueous solutions and mixes
Make carbon nanotube that interaction occur with thermally conductive toughening filler A after conjunction to be combined to obtain carbon nanotube/thermally conductive toughening filler A complex
Mixed liquor measures mixed liquor (surface after this carbon nanotube/thermally conductive toughening filler A complex mixed liquor stands layering in 5 minutes
Tension viscosity) parameter value is 72, after water removal is gone in the centrifugation of resulting carbon nanotube/thermally conductive toughening filler A complex mixed liquor
80 DEG C of baking oven heating, dryings are placed in get carbon nanotube/thermally conductive toughening filler A composite material is arrived.
Content calculates by mass percentage, takes 31% resin (polycarbonate 10%, polyphenylene oxide 1% and polyamide 20%) and above-mentioned
Carbon nanotube/thermally conductive toughening filler A composite material is placed in mixing and blending machine after mixing, is made by double screw extruder extrusion
Grain to get arrive a kind of heat-conducting plastic product of the invention.After gained heat-conducting plastic is melted and molded, surveyed with heat conduction coefficient tester
The thermal coefficient of random sample product is 4.3 W/mK
Additives polyethylene glycol in the embodiment 1, polyvinyl alcohol, sodium citrate, temptation be red, quinoline yellow, famille rose, acid red,
Propylene glycol, glycerol, glycol, diethylene glycol (DEG), triethylene glycol, tetraethylene glycol, triethanolamine, diethanol amine, silane coupling agent, Suramin Sodium,
Anthraquinone disulfonic acid salt and its derivative, alkylbenzene sulfonate and its derivative, alkyl diphenyl ether disulfonate and its derivative, alkane
One of base naphthalene sulfonate and its derivative, Alkyl dinaphthyl ether sulfonate and its derivative or any several mixture；Tree
Rouge uses polyamide, polycarbonate, polybutylene terephthalate (PBT), polyethylene terephthalate, polyformaldehyde, polyphenyl
Ether, acrylonitrile-butadiene-styrene (ABS), polypropylene, polyphenylene sulfide, polysulfones, polyethylene, polymethyl methacrylate, polytetrafluoroethyl-ne
One of alkene, polystyrene, polyvinyl chloride or any several mixture；Thermally conductive toughening filler A is using quartz, mica, saturating
Pyroxene, wollastonite, amphibole, calcite, bauxite, feldspar, barite, serpentine, lime stone, gypsum, nepheline, talcum, fluorite,
One of leucite, dolomite, marble, mullite, kaolinite or any several mixture；Thermally conductive toughening filler B is adopted
With one of glass fibre, rubber, carbon nanotube, graphite or any several mixture, finally can also reach as implemented
The same or similar technical effect of example 1.
For solvent without water is confined to, the organic solvent used meets the following conditions in the embodiment 1: mixed with graphene
Solution surface tension value range after conjunction is 16~67mN/m, and solution viscosity value range is 0.1~1500mPas, and
Stone graphene/thermally conductive toughening filler mixed liquor surface tension value range is 32~74mN/m, and solution viscosity value range is 0.6
~1450mPas.
Embodiment 2
Content calculates by mass percentage, takes 10% thermally conductive toughening filler B(glass fibre, graphite and rubber) and 2% additive (acid
Property red, polyethylene glycol and myristyl sodium naphthalene sulfonate) be added in ethyl alcohol and be made into the alcohol mixeding liquid of thermally conductive toughening filler B, and will
It is added to the container, and (surface tension viscosity) parameter value for measuring the mixed liquor is 16, then takes 68% thermally conductive toughening filler A(big
Fibrous gypsum, talcum and diopside) it is added in the alcohol mixeding liquid of this thermally conductive toughening filler B that thermally conductive toughening filler B and A occurs is mutual
Effect combines and obtains thermally conductive toughening filler A/B complex mixed liquor, stands 10 to this thermally conductive toughening filler A/B complex mixed liquor
After minute layering, measuring mixed liquor (surface tension viscosity) parameter value is 24, by resulting thermally conductive toughening filler A/B complex
Mixed liquor filtering removal upper layer ethyl alcohol is placed on 70 DEG C of baking oven heating, dryings to get thermally conductive toughening filler A/B complex material is arrived.
By mass percentage content calculate, take 20% resin (polypropylene 10% and polybutylene terephthalate (PBT) 10%) and
Above-mentioned thermally conductive toughening filler A/B complex material is placed in high-speed mixer after mixing, is made by double screw extruder extrusion
Grain to get arrive a kind of heat-conducting plastic product of the invention.After gained heat-conducting plastic is melted and molded, surveyed with heat conduction coefficient tester
The thermal coefficient of random sample product is 2.5 W/mK.
Embodiment 3
Content calculates by mass percentage, takes 12% thermally conductive toughening filler B(graphite and carbon nanotube) and 1% additive (dodecane
Base benzene sulfonic acid sodium salt and diethanol amine) it is added in glycerol and is made into the glycerol mixed liquor of thermally conductive toughening filler B, and it is added into container
In, (surface tension viscosity) parameter value for measuring the mixed liquor is 53000, then takes 50% thermally conductive toughening filler A(mica, saturating brightness
Stone, feldspar, serpentine, lime stone, kaolinite) it is added in the glycerol mixed liquor of this thermally conductive toughening filler B and makes thermally conductive toughening filler B
Interaction occurs with A to be combined to obtain thermally conductive toughening filler A/B complex mixed liquor, to this thermally conductive toughening filler A/B complex
After mixed liquor stands layering in 15 minutes, measuring mixed liquor (surface tension viscosity) parameter value is 61000, by resulting thermally conductive increasing
Tough filler A/B complex mixed liquor is centrifuged and filters after removal solvent to arrive thermally conductive toughening filler A/B complex material.
Content calculates by mass percentage, takes 37% resin (acrylonitrile-butadiene-styrene (ABS) 15%, polyformaldehyde 20% and poly-
Ethylene 2%) and above-mentioned thermally conductive toughening filler A/B complex material be placed in high-speed mixer after mixing, by twin-screw extrusion
Machine extruding pelletization to get arrive a kind of heat-conducting plastic product of the invention.After gained heat-conducting plastic is melted and molded, thermal coefficient is used
The thermal coefficient that tester measures sample is 4.1 W/mK.
Embodiment 4
By mass percentage content calculate, take 13% thermally conductive toughening filler B(carbon nanotube and glass fibre) and 1% additive it is (sweet
Oil, quinoline yellow and cetyl benzenesulfonic acid sodium) it is added to the water the mixed liquor for being made into thermally conductive toughening filler B, and it is added into container
In, measure the mixed liquor (surface tension viscosity) parameter value be 41, then take 66% thermally conductive toughening filler A(quartz, lime stone,
Gypsum, nepheline and leucite) it is added in the mixed liquor of this thermally conductive toughening filler B thermally conductive toughening filler B and A is made to interact
In conjunction with thermally conductive toughening filler A/B complex mixed liquor is obtained, 3 minutes are stood to this thermally conductive toughening filler A/B complex mixed liquor
After layering, measuring mixed liquor (surface tension viscosity) parameter value is 71, and resulting thermally conductive toughening filler A/B complex is mixed
Liquid centrifugation goes water removal to be placed on 80 DEG C of baking oven heating, dryings to get thermally conductive toughening filler A/B complex material is arrived.
Content calculates by mass percentage, takes 20% resin (polyethylene terephthalate 2%, poly-methyl methacrylate
Ester 8% and polypropylene 10%) and above-mentioned thermally conductive toughening filler A/B complex material be placed in high-speed mixer after mixing, by
Double screw extruder extruding pelletization to get arrive a kind of heat-conducting plastic product of the invention.After gained heat-conducting plastic is melted and molded,
Thermal coefficient with heat conduction coefficient tester measurement sample is 3.5 W/mK.
Embodiment 5
Content calculates by mass percentage, takes 20% thermally conductive toughening filler B(glass fibre and graphite) it is added to the water and is made into thermally conductive increasing
The mixed liquor of tough filler B, and be added into container, (surface tension viscosity) parameter value for measuring the mixed liquor is 59, then
It takes 45% thermally conductive toughening filler (barite, serpentine, gypsum, talcum, fluorite, dolomite, marble, kaolinite) that this is added to lead
Thermally conductive toughening filler B and A is set interaction occur to be combined to obtain thermally conductive toughening filler A/B to answer in the mixed liquor of hot toughening filler B
Fit mixed liquor measures mixed liquor (surface after this thermally conductive toughening filler A/B complex mixed liquor stands layering in 6 minutes
Power viscosity) parameter value be 73, resulting thermally conductive toughening filler A/B complex mixed liquor is filtered off into water removal and is placed on 80 DEG C of bakings
Case heating, drying to get arrive thermally conductive toughening filler A/B complex material.
Content calculates by mass percentage, takes 35% resin (polyformaldehyde 10%, acrylonitrile-butadiene-styrene (ABS) 5%, poly- second
Alkene 10% and polyvinyl chloride 10%) and above-mentioned thermally conductive toughening filler A/B complex material be placed in high-speed mixer after mixing,
By double screw extruder extruding pelletization to get to a kind of heat-conducting plastic product of the invention.Gained heat-conducting plastic is melted and molded
It afterwards, is 3.4 W/mK with the thermal coefficient of heat conduction coefficient tester measurement sample.
Embodiment 6
Content calculates by mass percentage, takes 8% thermally conductive toughening filler B(carbon nanotube, rubber and glass fibre) it is added to the water and matches
It at the mixed liquor of thermally conductive toughening filler B, and is added into container, measures (surface tension viscosity) parameter value of the mixed liquor
It is 57, then takes 75% thermally conductive toughening filler A(mica, wollastonite, calcite, serpentine, fluorite and nepheline) this thermally conductive toughening is added
Thermally conductive toughening filler B and A is set interaction occur to be combined to obtain thermally conductive toughening filler A/B complex to mix in the mixed liquor of filler B
Liquid is closed, after this thermally conductive toughening filler A/B complex mixed liquor stands layering in 5 minutes, measuring mixed liquor, (surface tension is viscous
Degree) parameter value is 63, go water removal to be placed on 80 DEG C of baking ovens heating resulting thermally conductive toughening filler A/B complex mixed liquor centrifugation
It dries to get thermally conductive toughening filler A/B complex material is arrived.
Content calculates by mass percentage, takes 17% resin (polyethylene terephthalate 4% and polypropylene 13%) and upper
Thermally conductive toughening filler A/B complex material is stated to be placed in high-speed mixer after mixing, by double screw extruder extruding pelletization,
Obtain a kind of heat-conducting plastic product of the invention.After gained heat-conducting plastic is melted and molded, measured with heat conduction coefficient tester
The thermal coefficient of sample is 2.8 W/mK.
Claims (10)
1. a kind of novel heat-conducting plastics, it is characterised in that the heat-conducting plastic is by resin, additive, thermally conductive toughening filler A and thermally conductive
Toughening filler B composition, the mass percentage content of the resin, additive, thermally conductive toughening filler A and thermally conductive toughening filler B
Are as follows:
Resin 1~65%
Thermally conductive toughening filler A 18~94%
Thermally conductive toughening filler B 0~55%
Additive 0~10%；
The resin is polyamide, polycarbonate, polybutylene terephthalate (PBT), polyethylene terephthalate, gathers
Formaldehyde, polyphenylene oxide, acrylonitrile-butadiene-styrene (ABS), polypropylene, polyphenylene sulfide, polysulfones, polyethylene, poly-methyl methacrylate
One of ester, polytetrafluoroethylene (PTFE), polystyrene, polyvinyl chloride or any several mixture；
The thermally conductive toughening filler A is quartz, mica, diopside, wollastonite, amphibole, calcite, bauxite, feldspar, weight crystalline substance
Stone, serpentine, lime stone, gypsum, nepheline, talcum, fluorite, leucite, dolomite, marble, mullite, one in kaolinite
Kind or any several mixture；
The thermally conductive toughening filler B is one of glass fibre, rubber, carbon nanotube, graphite or any several mixing
Object.
2. a kind of novel heat-conducting plastics as described in claim 1, it is characterised in that the resin, additive, thermally conductive toughening
The mass percentage content of filler A and thermally conductive toughening filler B are as follows:
Resin 2~60%
Thermally conductive toughening filler A 20~91%
Thermally conductive toughening filler B 2~45%
Additive 0~8%.
3. a kind of novel heat-conducting plastics as described in claim 1, it is characterised in that the resin, additive, thermally conductive toughening
The mass percentage content of filler A and thermally conductive toughening filler B are as follows:
Resin 5~50%
Thermally conductive toughening filler A 30~80%
Thermally conductive toughening filler B 10~40%
Additive 2~6%.
4. a kind of novel heat-conducting plastics as described in claims 1 or 2 or 3, it is characterised in that the additive is poly- second two
It is alcohol, polyvinyl alcohol, sodium citrate, the red, quinoline yellow of temptation, famille rose, acid red, propylene glycol, glycerol, glycol, diethylene glycol (DEG), three sweet
Alcohol, tetraethylene glycol, triethanolamine, diethanol amine, silane coupling agent, Suramin Sodium, anthraquinone disulfonic acid salt and its derivative, alkylbenzene
Sulfonate and its derivative, alkyl diphenyl ether disulfonate and its derivative, alkylnaphthalene sulfonate and its derivative, alkyl dinaphthyl
One of ether sulfonate and its derivative or any several mixture.
5. a kind of production method of novel heat-conducting plastics as described in claims 1 or 2 or 3, it is characterised in that including following work
Skill step:
(1) thermally conductive toughening will be made into thermally conductive toughening filler B and additive the addition water or/and organic solvent of the formula ratio to fill out
Expect the mixed liquor of B and is added to the container；
(2) the thermally conductive toughening filler A of the formula ratio is added in the mixed liquor of this thermally conductive toughening filler B again fills out thermally conductive toughening
Material B occurs interaction with thermally conductive toughening filler A and is combined to obtain thermally conductive toughening filler A/B complex mixed liquor；
(3) after this thermally conductive toughening filler A/B complex mixed liquor stratification, this thermally conductive toughening filler A/B being layered is answered
Fit mixed liquor removes solvent to get thermally conductive toughening filler A/B complex material is arrived；
(4) plastics molding process is used after mixing this thermally conductive toughening filler A/B complex material with the resin of the formula ratio
Heat-conducting plastic product is made.
6. a kind of production method of novel heat-conducting plastics as claimed in claim 5, it is characterised in that will in the step (1)
The surface of the mixed liquor for the thermally conductive toughening filler B being made into water or/and organic solvent is added in thermally conductive toughening filler B and additive
Power viscosity parameter value is 1~72000, and the surface tension viscosity parameter is common by the surface tension and viscosity of mixed liquor
Definition, numerical value=mixed liquor surface tension numerical value × viscosity of mixed liquid value of the surface tension viscosity parameter, surface tension
Numerical value is as unit of mN/m, and for viscosity as unit of mPas, surface tension value range is 19~67, and viscosity value range is
0.1~1500.
7. a kind of production method of novel heat-conducting plastics as claimed in claim 5, it is characterised in that led in the step (3)
Surface tension viscosity parameter value after hot toughening filler A/B complex mixed liquor stratification is 23~69000, the table
Surface tension and viscosity common definition of the face tension viscosity parameter by mixed liquor, the number of the surface tension viscosity parameter
Value=mixed liquor surface tension numerical value × viscosity of mixed liquid value, for surface tension numerical value as unit of mN/m, viscosity is single with mPas
Position, surface tension value range are 32~74, and viscosity value range is 0.6~1450.
8. a kind of production method of novel heat-conducting plastics as claimed in claim 5, it is characterised in that led in the step (3)
Hot toughening filler A/B complex mixed liquor removal solvent method is specially centrifugation, suction filtration, heating, drying, freeze-drying, does by spraying
Dry or other routines remove one of solvent means or a variety of.
9. a kind of production method of novel heat-conducting plastics as claimed in claim 5, it is characterised in that the novel heat-conducting plastics
Thermal conductivity is 2.5~4.5 W/mK.
10. a kind of novel heat-conducting plastics as described in claim 1 are as thermally conductive and/or mechanics toughening reinforcing material application.
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| CN114196202A (en) * | 2022-01-21 | 2022-03-18 | 湖北洋田塑料制品有限公司 | Heat-conducting nylon composite material and preparation method thereof |
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Effective date of registration: 20191128 Address after: 200050 No. 390, Anhua Road, Shanghai, Changning District Applicant after: Ruan Wei Address before: Room 19, No. 101-44, No. 1399, good road, front street, Cang Qian street, Yuhang District, Hangzhou, Zhejiang Applicant before: HANGZHOU WANCHU MATERIAL TECHNOLOGY CO.,LTD. |
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Application publication date: 20191029 |