CN107857937A - A kind of polypropylene polyamide heat-conductive composite material - Google Patents

A kind of polypropylene polyamide heat-conductive composite material Download PDF

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CN107857937A
CN107857937A CN201711161167.6A CN201711161167A CN107857937A CN 107857937 A CN107857937 A CN 107857937A CN 201711161167 A CN201711161167 A CN 201711161167A CN 107857937 A CN107857937 A CN 107857937A
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李强
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GAOYOU INSTITUTE OF DALIAN UNIVERSITY OF TECHNOLOGY Co Ltd
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10Homopolymers or copolymers of propene
    • C08L23/12Polypropene
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L77/00Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
    • C08L77/02Polyamides derived from omega-amino carboxylic acids or from lactams thereof
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    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K5/00Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
    • C09K5/08Materials not undergoing a change of physical state when used
    • C09K5/14Solid materials, e.g. powdery or granular
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/28Nitrogen-containing compounds
    • C08K2003/282Binary compounds of nitrogen with aluminium
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/38Boron-containing compounds
    • C08K2003/382Boron-containing compounds and nitrogen
    • C08K2003/385Binary compounds of nitrogen with boron
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/002Physical properties
    • C08K2201/003Additives being defined by their diameter
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend

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Abstract

The invention belongs to Material Field, and in particular to a kind of polypropylene polyamide heat-conductive composite material, in parts by weight, have following raw material to be prepared:30~70 parts of polypropylene, 0~70 part of kymene, 50~100 parts of heat filling, 20~40 parts of modified glass-fiber, 20~30 parts of compatilizer, 10~15 parts of fire retardant, 0.5~1.0 part of light stabilizer, 0.2~0.3 part of coupling agent, 0.2~0.3 part of antioxidant;Described modified glass-fiber is that glass fibre passes through the modified composite nitride aluminium in dopamine surface.The present invention enters modification using dopamine to fiberglass surfacing, so as to adhere to aluminium nitride particulate, the thermal conductivity of glass fibre is improved with this, and modified glass fibre is added in the composite of polypropylene polyamide, while strengthened composite product mechanical performance, and ensure the requirement of thermal conductivity.

Description

A kind of polypropylene-polyamide heat-conducting composite
Technical field
The invention belongs to Material Field, and in particular to a kind of polypropylene-polyamide heat-conducting composite.
Background technology
Polypropylene (PP) is a kind of wide variety of thermoplastic, and its raw material sources enriches, cheap, is had preferable Combination property, occupy critical role in the plastic.Relative to polyamide, polypropylene hardly absorbs water, not by use environment tide The influence of humidity, but the shortcomings of molding shrinkage is big, notch impact toughness is poor be present in polypropylene.Polyamide (PA) is commonly called as Buddhist nun Dragon, it is a kind of thermoplastic engineering plastic for being widely used in the fields such as automobile, electronics, machinery, instrument and meter.PA has excellent Wearability, oil resistivity and wider use temperature range, its shortcoming are big water absorption rate, poor dimensional stability, low temperature and dry state punching Hit intensity is low, and these shortcomings greatly limit its application.Blending and modifying is carried out to polyamide with polypropylene, can be changed The shortcomings that kind polyamide, widen the application field of polyamide.By PA/PP composites made from blending, nylon is both combined Heat resistance and oil resistivity, combine PP characteristic again, the material has excellent impact strength, excellent mobility and surface Glossiness, it can be widely applied to the fields such as automobile interior exterior part, electronic apparatus, oil field equipment and sports goods.
Due to polymeric material compared to metal material in resistant to chemical etching, processing and forming, good insulating and light etc. The advantage of aspect, can be with alternative metals material in the reality of engineering, heating engineering, Electronics and Information Engineering, LED etc. that exchanges heat Using, thus the novel high polymer material with Thermal conductivity is developed, turn into the important development direction of current Heat Conduction Material.
Realizing the approach of polymer bond has two kinds:First, intrinsic thermal conductivity type polymer of the synthesis with high heat conductance.Such as The conducting polymers such as polyacetylene, polyaniline, polypyrrole just have Thermal conductivity, by being doped to material, Ke Yitong Cross electronics heat transfer mechanism and realize heat conduction;And for example there is the highly crystalline polymer of complete crystal, can be realized and led by phonon Heat.Second, inorganic matter/polymer bond's composite is prepared with the inorganics filled polymer of high heat conduction, as graphite, aluminium nitride are filled out Fill high density polyethylene (HDPE) and prepare heat conduction composite plastic.In general, Intrinsical heat-conducting polymer preparation technology is cumbersome, difficulty is big, Cost is high, at present using less;And filled-type processing and forming is relatively easy, cost is low, and thermal conductivity is high, can carry out industrial metaplasia Production, is the main method for preparing heat-conducting polymer at present.But most of preferable plastics of heat-conducting effect all with the addition of at present The inorganic filler of high specific weight, easily cause the mechanical properties decrease of material serious, it is therefore desirable to some toughening auxiliary agents are added, The glass fibre then Typical Representative as toughening auxiliary agent.
Glass fibre (GF) is a kind of inorganic filler of one-dimentional structure, and main component is aluminum oxide, calcium oxide, silica etc. Oxide, using the inorganic matters such as silica or discarded glass ball as raw material, through melting, drawing under the condition of high temperature more than 1000 DEG C Silk, oil, boundling, the technique such as drying are prepared.Glass fibre in addition to excellent mechanical property, also with high temperature resistant, Electric insulation, corrosion-resistant, moisture absorption is low, a series of anti-oxidant, elongation performances better than other artificial macromolecular fibres such as small, when itself plus When entering to polymeric matrix, it can effectively undertake stress and load as skeleton, so as to significantly improve polymer matrix The mechanical property and heat resistance of body.But the thermal conductivity factor of glass fibre is too low, only 0.035 (W/m-K), if glass Incorporation it is too high, the thermal conductivity of material can be had a strong impact on, glass incorporation is too low, then can not meet again suitable physical Energy.Therefore, glass fibre is modified in itself, makes it have certain thermal conductivity, while met that glass fibre is compound and lead The requirement of physical property and thermal conductivity required for hot material.
In nature, marine mussel binding proteins contain a kind of substantial amounts of special amino acid and are referred to as 3,4- dihydroxy Phenylalanine, i.e. dopamine (DOPA), great pass is caused due to mussel can be made to adhere to the magical ability on various surfaces Note.Dopamine can polymerize to form poly-dopamine coating under aerobic alkaline aqueous environment in material surface spontaneous oxidation.DOPA The mode of oxidation auto polymerization occurs for amine, is that catechol contained in dopamine is oxidized to benzoquinones first, then proceed to amine and its He generates poly-dopamine coating at the reaction of catechol quinones.The catechol and quinone of poly-dopamine coating are functional group, to a variety of materials Material all has the ability being covalently attached, and reaction condition is simple, it is not necessary to carries out any surface preparation to carrier in advance.For Dopamine is to the study on the modification of material surface, and nowadays great mass of data is recorded, such as by deposit dopamine in polyethylene, gather The microporous barrier surface of the materials such as vinylidene, polytetrafluoroethylene (PTFE), the surface hydrophilicity of hydrophobic polymer film can obtain significantly Improve, and by selecting suitable reaction condition, be improved membrane flux.The material such as modified PE, PTEF leads to for another example Cross and reacted using the oxidation auto polymerization of poly-dopamine, the compatibility between modified material surface and Gegenbaur's cell substantially improves.
Aluminium nitride has high thermal conductivity still reachable for monocrystalline, its theoretical value 320W/ (mK), its actual value because of it 100~280W/ (mK), 5~10 times equivalent to aluminum oxide, also there is high intensity, high specific insulation, high insulation is pressure-resistant, Low-dielectric loss, thermal coefficient of expansion such as match at the good characteristic with silicon, it has also become current most promising high heat-conducting ceramic of new generation Electric substrate and encapsulating material.
The content of the invention
For above the deficiencies in the prior art, the present invention provides a kind of polypropylene-polyamide heat-conducting composite, using more Bar amine enters modification to fiberglass surfacing, and so as to adhere to aluminium nitride particulate, the thermal conductivity of glass fibre is improved with this, and will be modified Glass fibre be added in the composite of polypropylene-polyamide, while strengthened composite product mechanical performance, and Ensure the requirement of thermal conductivity.
A kind of polypropylene-polyamide heat-conducting composite of the present invention, it is characterised in that in parts by weight, have Following raw material is prepared:30~70 parts of polypropylene, 0~70 part of kymene, 50~100 parts of heat filling, modified glass-fiber 20~40 parts, it is 20~30 parts of compatilizer, 10~15 parts of fire retardant, 0.5~1.0 part of light stabilizer, 0.2~0.3 part of coupling agent, anti- 0.2~0.3 part of oxygen agent;Described modified glass-fiber is that glass fibre passes through the modified composite nitride aluminium in dopamine surface.
Wherein, preferred scheme is as follows:
Described polypropylene is selected from HOPP, one kind of COPP or their mixture, melt index and existed 10~25g/10min.
Described polyamide is nylon-6 or nylon -66.
Described modified glass-fiber is prepared according to following steps:
(1) glass fibre is burnt into 1~2h under the conditions of 500~600 DEG C, be then washed with deionized 2~3 times, done It is dry standby;
(2) dopamine is added to the aqueous dopamine solution that 2g/L is configured in deionized water, with Tris-HCl to its PH Adjust to 8.5;
(3) glass fibre is added to progress 24~36h of magnetic agitation in aqueous dopamine solution, then by glass fiber filter And cleaned with deionized water, dried after cleaning under the conditions of 60~80 DEG C;
(4) aluminium nitride powder is added in alcohol solvent and adds the stearic acid of aluminium nitride powder quality 8~10%, stirred 2~3h is stood after mixing uniformly, adds the Tween 80 of aluminium nitride powder quality 2~3%, stir 3 under the conditions of 60~70 DEG C~ 5h, the aluminium nitride powder finally filtered out are washed 2~3 times with alcohol solvent, and modified aluminium nitride powder is produced after drying, according to changing Property aluminium nitride powder weight account for 8~10% ratio of glass fiber weight, modified aluminium nitride powder is distributed to distilled water In, 5~10min of supersonic oscillations, form stable modification aluminium nitride suspension;
(5) aluminium nitride suspension and then with spray gun spraying is modified to fiberglass surfacing, that is, obtains modified glass-fiber.
Described glass fibre is alkali-free glass fibre, 6 μm~9 μm of diameter.
Described compatilizer is maleic anhydride inoculated polypropylene.Polyamide is a kind of crystallinity, highly polar polymer, and Polypropylene is a kind of polymer of low pole, and both solubility parameter differences are larger, without thermodynamic compatibility, therefore add Enter the shortcomings that compatilizer overcomes both comixing compatibility differences.
Described heat filling is magnesium hydroxide, magnesia, zinc oxide, boron nitride, one kind in titanium dioxide or any several The combination of kind.
Described fire retardant is nano melamine cyanurate, aluminum diethylphosphinate, brominated Polystyrene, three oxidations One kind or any several combination in two antimony.
Described light stabilizer is that light stabilizer UV-3853, light stabilizer UV-3346, light stabilizer UV-3529 and light are steady Determine one kind in agent UV-770 or any several combination.
Described coupling agent is silane coupler, one kind in KH-550, KH-560 or KH-570.
Described antioxidant is antioxidant 1010, antioxidant 1790, antioxidant 1098, irgasfos 168, antioxidant DLTDP In one or more of mixtures.
The preparation method of PP composite material of the present invention with high thermal conductivity coefficient, modified glass-fiber will be removed Other raw materials in addition are put into 10~20min of mixing in batch mixer, are sufficiently mixed it, then add mixture to twin-screw Extruding pelletization unit is melted, and processing temperature is 220~240 DEG C, 300~350r/min of screw speed, is fed in side entrance Modified glass-fiber, single-size is made through double-screw extruding pelletizing machine extrusion, pelletizing.
The advantage of the invention is that:(1) fiberglass surfacing is modified by dopamine, improves glass fibre and its Adhesion between its interface, so as to by the adhesion of dopamine in fiberglass surfacing composite nitride aluminium, to improve glass fibers The thermal conductivity of dimension;(2) because aluminium nitride powder easily hydrolyzes, aluminium hydroxide can be formed with the hydroxyl in water, in aluminium nitride powder Surface forms alumina layer, and aluminium nitride lattice dissolves in substantial amounts of oxygen, reduces its thermal conductivity, therefore carry out waterproof to aluminium nitride powder Solution is modified, and is avoided aluminium nitride powder from hydrolyzing to form alumina layer in adition process, is influenceed its heat conductivility;(3) modified glass Fiber surface is in coarse structure due to being compounded with aluminium nitride, surface, while by dopamine, can significantly increase with polypropylene- Interface binding power between polyamide;(4) modified glass-fiber thermal conductivity factor can exceed 1.0W/ (mK), to a certain extent The polyacrylic thermal conductivity factor of heat conduction is improved, while modified glass-fiber effectively improves poly- third as main toughening auxiliary agent The toughness of alkene-polyamide heat-conducting composite, dimensional stability is improved, reduce shrinkage factor, reduced buckling deformation, meet mechanicalness The needs of energy;(5) integrated artistic route is simple, low to reaction condition and equipment requirement degree, suitable for industrialized production;(6) this hair Bright polypropylene-polyamide heat-conducting the composite products being prepared can alternative metals raw material production spare and accessory parts or shell, Relevant cost declines to a great extent, and improves competitiveness comprehensively, and application prospect is extensive.
Embodiment
The invention will be further described with reference to embodiments.
Embodiment 1:
Prepare modified glass-fiber
(1) alkali-free glass fibre selected between 6 μm~9 μm of diameter, 1h is burnt by glass fibre under the conditions of 600 DEG C, Then 3 times are washed with deionized, drying for standby.
(2) dopamine is added to the aqueous dopamine solution that 2g/L is configured in deionized water, with Tris-HCl to its PH Adjust to 8.5.
(3) pretreated glass fibre is added to progress magnetic agitation 24h in aqueous dopamine solution, then by glass Fiber filter is simultaneously cleaned with deionized water, is dried after cleaning under the conditions of 60 DEG C and be can obtain dopamine modified glass-fiber.
(4) aluminium nitride powder that average particle size particle size is 1.50 μm is added in alcohol solvent and adds aluminium nitride powder The stearic acid of quality 10%, 2h is stood after stirring, add the Tween 80 of aluminium nitride powder quality 3%, in 60 DEG C of conditions Lower stirring 4h, the aluminium nitride powder finally filtered out are washed 3 times with alcohol solvent, and modified aluminium nitride powder is produced after drying.Will The modification aluminium nitride powder for accounting for glass fiber weight 10% is distributed in distilled water, supersonic oscillations 10min, forms stable change Property aluminium nitride suspension.
(5) fiberglass surfacing and then with spray gun spraying modification aluminium nitride suspension being modified to dopamine, spraying process In it is noted that spraying is uniform, glass fibre can be stirred by other aids or equipment.Using DRE-2C heat conduction Coefficient tester carries out Determination of conductive coefficients to it, is as a result 1.221W/ (mK).
Embodiment 2:
Modified glass-fiber prepared by embodiment 1 is applied in polypropylene-polyamide heat-conducting composite preparation, formula In:50 parts of polypropylene, 50 parts of nylon-6,100 parts of boron nitride, 20 parts of modified glass-fiber, maleic anhydride inoculated polypropylene 20 Part, 15 parts of antimony oxide, 0.5 part of light stabilizer UV-770, KH-5700.2 parts, 0.2 part of antioxidant 1010.
During preparation, other raw materials in addition to modified glass-fiber are put into batch mixer and mix 20min, make it fully mixed Close, then add mixture to double-screw extruding pelletizing unit and melted, processing temperature is 220 DEG C, screw speed 300r/ Min, modified glass-fiber is fed in side entrance, single-size is made through double-screw extruding pelletizing machine extrusion, pelletizing.
Determination of conductive coefficients is carried out to it using DRE-2C heat conduction coefficient testers, is as a result 6.557W/ (mK).
Embodiment 3:
Modified glass-fiber prepared by embodiment 1 is applied in polypropylene-polyamide heat-conducting composite preparation, formula In:50 parts of polypropylene, 70 parts of nylon-6,80 parts of boron nitride, 30 parts of modified glass-fiber, 20 parts of maleic anhydride inoculated polypropylene, 10 parts of antimony oxide, 0.5 part of light stabilizer UV-770,0.2 part of KH-570,0.2 part of antioxidant 1010.
During preparation, other raw materials in addition to modified glass-fiber are put into batch mixer and mix 20min, make it fully mixed Close, then add mixture to double-screw extruding pelletizing unit and melted, processing temperature is 240 DEG C, screw speed 350r/ Min, modified glass-fiber is fed in side entrance, single-size is made through double-screw extruding pelletizing machine extrusion, pelletizing.
Determination of conductive coefficients is carried out to it using DRE-2C heat conduction coefficient testers, is as a result 4.893W/ (mK).
Embodiment 4:
Modified glass-fiber prepared by embodiment 1 is applied in polypropylene-polyamide heat-conducting composite preparation, formula In:30 parts of polypropylene, 60 parts of nylon-6,80 parts of boron nitride, 20 parts of modified glass-fiber, 20 parts of maleic anhydride inoculated polypropylene, 10 parts of antimony oxide, 1.0 parts of light stabilizer UV-770,0.3 part of KH-570,0.3 part of antioxidant 1010.
During preparation, other raw materials in addition to modified glass-fiber are put into batch mixer and mix 20min, make it fully mixed Close, then add mixture to double-screw extruding pelletizing unit and melted, processing temperature is 200 DEG C, screw speed 320r/ Min, modified glass-fiber is fed in side entrance, single-size is made through double-screw extruding pelletizing machine extrusion, pelletizing.
Determination of conductive coefficients is carried out to it using DRE-2C heat conduction coefficient testers, is as a result 6.310W/ (mK).

Claims (10)

  1. A kind of 1. polypropylene-polyamide heat-conducting composite, it is characterised in that in parts by weight, have following raw material prepare and Into:It is 30~70 parts of polypropylene, 0~70 part of kymene, 50~100 parts of heat filling, 20~40 parts of modified glass-fiber, compatible 20~30 parts of agent, 10~15 parts of fire retardant, 0.5~1.0 part of light stabilizer, 0.2~0.3 part of coupling agent, antioxidant 0.2~0.3 Part;Described modified glass-fiber is that glass fibre passes through the modified composite nitride aluminium in dopamine surface.
  2. A kind of 2. polypropylene-polyamide heat-conducting composite according to claim 1, it is characterised in that:Described poly- third Alkene is selected from HOPP, one kind of COPP or their mixture, and melt index is in 10~25g/10min.
  3. A kind of 3. polypropylene-polyamide heat-conducting composite according to claim 1, it is characterised in that:Described polyamides Amine is nylon-6 or nylon -66.
  4. A kind of 4. polypropylene-polyamide heat-conducting composite according to claim 1, it is characterised in that:Described modification Glass fibre is prepared according to following steps:
    (1) glass fibre is burnt into 1~2h under the conditions of 500~600 DEG C, be then washed with deionized 2~3 times, drying is standby With;
    (2) dopamine is added to the aqueous dopamine solution that 2g/L is configured in deionized water, its PH adjusted with Tris-HCl To 8.5;
    (3) glass fibre is added to progress 24~36h of magnetic agitation in aqueous dopamine solution, is then used in combination glass fiber filter Deionized water is cleaned, and is dried after cleaning under the conditions of 60~80 DEG C;
    (4) aluminium nitride powder is added in alcohol solvent and adds the stearic acid of aluminium nitride powder quality 8~10%, stirring is equal 2~3h is stood after even, adds the Tween 80 of aluminium nitride powder quality 2~3%, 3~5h is stirred under the conditions of 60~70 DEG C, most The aluminium nitride powder filtered out afterwards is washed 2~3 times with alcohol solvent, and modified aluminium nitride powder is produced after drying, according to modified nitrogen The weight for changing aluminium powder accounts for 8~10% ratio of glass fiber weight, and modified aluminium nitride powder is distributed in distilled water, surpassed 5~10min of sonication, form stable modification aluminium nitride suspension;
    (5) aluminium nitride suspension and then with spray gun spraying is modified to fiberglass surfacing, that is, obtains modified glass-fiber.
  5. A kind of 5. polypropylene-polyamide heat-conducting composite according to claim 1 or 4, it is characterised in that:Described glass Glass fiber is alkali-free glass fibre, 6 μm~9 μm of diameter.
  6. A kind of 6. polypropylene-polyamide heat-conducting composite according to claim 1, it is characterised in that:Described is compatible Agent is maleic anhydride inoculated polypropylene.
  7. A kind of 7. polypropylene-polyamide heat-conducting composite according to claim 1, it is characterised in that:Described heat conduction Filler is magnesium hydroxide, magnesia, zinc oxide, boron nitride, one kind in titanium dioxide or any several combination.
  8. A kind of 8. polypropylene-polyamide heat-conducting composite according to claim 1, it is characterised in that:Described is fire-retardant Agent is nano melamine cyanurate, aluminum diethylphosphinate, brominated Polystyrene, one kind in antimony oxide or any Several combinations.
  9. A kind of 9. polypropylene-polyamide heat-conducting composite according to claim 1, it is characterised in that:Described light is steady Agent is determined for one kind in light stabilizer UV-3853, light stabilizer UV-3346, light stabilizer UV-3529 and light stabilizer UV-770 Or any several combination.
  10. A kind of 10. polypropylene-polyamide heat-conducting composite according to claim 1, it is characterised in that:Described coupling Agent is silane coupler, one kind in KH-550, KH-560 or KH-570;Described antioxidant is antioxidant 1010, resisted One or more of mixtures in oxygen agent 1790, antioxidant 1098, irgasfos 168, antioxidant DLTDP.
CN201711161167.6A 2017-11-21 2017-11-21 A kind of polypropylene polyamide heat-conductive composite material Pending CN107857937A (en)

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CN111410792A (en) * 2020-06-01 2020-07-14 天津美亚化工有限公司 High-specific-strength modified polypropylene-based composite material and preparation method thereof
CN112940495A (en) * 2020-12-31 2021-06-11 华南理工大学 Nylon dielectric composite material with high resistance stability and preparation method and application thereof
CN114591566A (en) * 2022-01-27 2022-06-07 武汉金发科技有限公司 Polyolefin composition and preparation method and application thereof
CN115353683A (en) * 2022-08-05 2022-11-18 安徽杰蓝特新材料有限公司 Glass fiber reinforced polypropylene corrugated pipe and preparation method thereof
CN115558288A (en) * 2022-10-12 2023-01-03 安徽省华晟塑胶股份有限公司 Lightweight polyamide material for automobiles and preparation method thereof
CN116254084A (en) * 2023-04-27 2023-06-13 广东省华锐高新材料股份有限公司 Aluminum substrate heat-conducting adhesive for mini LED and preparation method

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CN111410792A (en) * 2020-06-01 2020-07-14 天津美亚化工有限公司 High-specific-strength modified polypropylene-based composite material and preparation method thereof
CN112940495A (en) * 2020-12-31 2021-06-11 华南理工大学 Nylon dielectric composite material with high resistance stability and preparation method and application thereof
CN114591566A (en) * 2022-01-27 2022-06-07 武汉金发科技有限公司 Polyolefin composition and preparation method and application thereof
CN114591566B (en) * 2022-01-27 2023-09-19 武汉金发科技有限公司 Polyolefin composition and preparation method and application thereof
CN115353683A (en) * 2022-08-05 2022-11-18 安徽杰蓝特新材料有限公司 Glass fiber reinforced polypropylene corrugated pipe and preparation method thereof
CN115353683B (en) * 2022-08-05 2023-09-19 安徽杰蓝特新材料有限公司 Glass fiber reinforced polypropylene corrugated pipe and preparation method thereof
CN115558288A (en) * 2022-10-12 2023-01-03 安徽省华晟塑胶股份有限公司 Lightweight polyamide material for automobiles and preparation method thereof
CN115558288B (en) * 2022-10-12 2024-03-26 安徽省华晟塑胶股份有限公司 Light polyamide material for automobiles and preparation method thereof
CN116254084A (en) * 2023-04-27 2023-06-13 广东省华锐高新材料股份有限公司 Aluminum substrate heat-conducting adhesive for mini LED and preparation method

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