CN109251419A - A kind of high thermal conductivity coefficient polypropylene modified material and preparation method thereof - Google Patents
A kind of high thermal conductivity coefficient polypropylene modified material and preparation method thereof Download PDFInfo
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- CN109251419A CN109251419A CN201810839372.1A CN201810839372A CN109251419A CN 109251419 A CN109251419 A CN 109251419A CN 201810839372 A CN201810839372 A CN 201810839372A CN 109251419 A CN109251419 A CN 109251419A
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- thermal conductivity
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/14—Copolymers of propene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/14—Solid materials, e.g. powdery or granular
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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
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/2224—Magnesium hydroxide
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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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
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Abstract
The present invention relates to technical field of polymer composite materials, more particularly to a kind of high thermal conductivity coefficient polypropylene modified material and preparation method thereof, the high thermal conductivity coefficient polypropylene modified material is made of feedstock composition, and the feedstock composition includes: 30~45 parts by weight of acrylic resin；0~10 parts by weight of toughener；1~5 parts by weight of compatilizer；50~60 parts by weight of modified magnesium hydroxide；0.4~0.6 parts by weight of lubricant；0.3~0.6 parts by weight of antioxidant；The modified magnesium hydroxide is the modified high-crystallinity magnesium hydroxide of silane coupling agent surface infiltration.The present invention significantly improves polyacrylic thermal coefficient, expands thermally conductive polyacrylic application range by the way that modified magnesium hydroxide is added in polypropylene.
Description
Technical field
The present invention relates to technical field of polymer composite materials, and in particular to a kind of high thermal conductivity coefficient polypropylene modified material
And preparation method thereof.
Background technique
LED light submount material requires have high thermal coefficient, heat resistance and high insulating properties, Aluminium Alloys in Common Use material
As heat dissipation base, because its good heat conductivity, efficiency of thermal transfer are high, but that there is also product weights simultaneously is big, electrical insulating property is poor etc.
Disadvantage；Plastic material, which uses, has the inorganics filled into matrix product of high thermal conductivity coefficient, becomes high heat conductive material, and
And with injection molding is simple on LED bulb pedestal, high production efficiency, and cost is relatively low, can be with substituted metal Heat Conduction Material.
There is thermally conductive polypropylene polymer composite currently used for the plastic material on LED bulb pedestal, but uses poly-
It when acrylic composite is as submount material, needs to add a large amount of heat filling, the toughness of PP composite material is caused to drop
It is low, and if reducing the loading of heat filling, it will affect thermal conductivity of composite materials, be difficult meet the needs of market.
Summary of the invention
In view of the deficiencies of the prior art, an object of the present invention is to provide a kind of high thermal conductivity coefficient polypropylene modification material
Material, it has excellent heating conduction.
The second object of the present invention is to provide a kind of preparation method of high thermal conductivity coefficient polypropylene modified material.
To achieve the goals above, the present invention provides a kind of high thermal conductivity coefficient polypropylene modified material, the high thermal conductivity system
Number polypropylene modified material is made of feedstock composition, and the feedstock composition includes:
The modified magnesium hydroxide is the modified high-crystallinity magnesium hydroxide of silane coupling agent surface infiltration.
The present invention also provides the preparation methods of the high thermal conductivity coefficient polypropylene modified material described in one kind, including following step
It is rapid:
After mixing by acrylic resin, toughener, compatilizer, modified magnesium hydroxide, lubricant and antioxidant, it puts into
In double screw extruder, high thermal conductivity coefficient polypropylene modified material is obtained through melting extrusion, pelletizing.
Through the above technical solutions, the present invention has following technical effect that
The present invention significantly improves polyacrylic thermal coefficient, expands by the way that modified magnesium hydroxide is added in polypropylene
Thermally conductive polyacrylic application range.
From a wealth of sources, cheap, the suitable industrialized production of chinese raw materials of the present invention.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Specific embodiment
Detailed description of the preferred embodiments below.It should be understood that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
The endpoint of disclosed range and any value are not limited to the accurate range or value herein, these ranges or
Value should be understood as comprising the value close to these ranges or value.For numberical range, between the endpoint value of each range, respectively
It can be combined with each other between the endpoint value of a range and individual point value, and individually between point value and obtain one or more
New numberical range, these numberical ranges should be considered as specific open herein.
The present invention provides a kind of high thermal conductivity coefficient polypropylene modified materials, are made of feedstock composition, the raw material group
Closing object includes:
The modified magnesium hydroxide is the modified high-crystallinity magnesium hydroxide of silane coupling agent surface infiltration.
Under optimum condition, the acrylic resin is homopolypropylene and/or copolymer polypropylene.
In order to improve the toughness of the polypropylene modified material, under optimum condition, the toughener is total selected from Ethylene/Butylene
At least one of polymers, high density polyethylene (HDPE) and linear low density polyethylene；In order to advanced optimize polypropylene modified material
Thermal coefficient, under optimum condition, the toughener is high density polyethylene (HDPE).
In order to advanced optimize the heating conduction of polypropylene modified material, the thermal coefficient of polypropylene modified material is improved,
Under optimum condition, the average grain diameter of the modified magnesium hydroxide is 5~10 μm.
In order to improve the degrees of fusion between polypropylene and toughener, modified magnesium hydroxide, under optimum condition, the compatilizer
For polypropylene-maleic anhydride copolymer and/or ethylene-octene-maleic anhydride.
Under optimum condition, it is anti-that the antioxidant is selected from Hinered phenols antioxidant, thioester antioxidant and phosphorous acid esters
At least one of oxygen agent.It is further preferred that the Hinered phenols antioxidant is selected from antioxidant 1076, antioxidant 1010, resists
At least one of oxygen agent 1098 and antioxidant 1024, the thiosulfates kind antioxidant are anti-oxidant DLTP, the phosphorous
Acid esters kind antioxidant is selected from least one of irgasfos 168, antioxidant 626 and antioxidant TP80.
Lubricant can reduce the frictional force of storeroom, reduces the internal stress of material, simplifies the processing of the alloy material
Performance, under optimum condition, it is double hard that the lubricant is selected from polyethylene wax, stearate, ethylene bis stearamide and grafting ethylene
At least one of acyl amine.
The present invention also provides the preparation methods of the high thermal conductivity coefficient polypropylene modified material described in one kind, including following step
It is rapid:
After mixing by acrylic resin, toughener, compatilizer, modified magnesium hydroxide, lubricant and antioxidant, it puts into
In double screw extruder, high thermal conductivity coefficient polypropylene modified material is obtained through melting extrusion, pelletizing.
Under optimum condition, the technique of the melting extrusion are as follows: extruder barrel temperature is 200~210 DEG C, screw speed is
350~400r/min, vacuum degree are -0.04~-0.1MPa.
The present invention will be described in detail by way of examples below.In following embodiment, copolymer polypropylene K7227H purchase
From wuhan petrochemical industry；Homopolypropylene SZ30S is purchased from wuhan petrochemical industry；High density polyethylene 8008 is purchased from Lanzhou Petrochemical；Linearly
Low density polyethylene (LDPE) 7042 is purchased from Maoming Petrochemical；Ethylene-octene-maleic anhydride CMG9805 is purchased from the liter of Shanghai day；Polypropylene-
Copolymer-maleic anhydride CA100 is purchased from A Kema；Modified magnesium hydroxide H1610 be purchased from Weifang Hai Lilong, average grain diameter be 5~
10μm。
Embodiment 1
A kind of high thermal conductivity coefficient polypropylene modified material, is made of following substance:
The preparation method of the high thermal conductivity coefficient polypropylene modified material, steps are as follows:
(1) by 45 parts by weight copolymer polypropylene K7227H, 5 parts by weight CMG9805,50 part by weight modified magnesium hydroxides
H1610,0.4 weight account polyethylene wax and 0.5 parts by weight anti-oxidant DLTP are stirred 10min in high-speed mixer, pass through
Main feeding hopper is added in engagement type parallel equidirectional two-screw extruder, obtains high thermal conductivity coefficient polypropylene through melting extrusion, pelletizing
Modified pellet, the technique of the melting extrusion are as follows: extruder barrel temperature is 210 DEG C, screw speed 350r/min, vacuum degree
For -0.04MPa.
(2) the good high thermal conductivity coefficient polypropylene modification pellet of pelletizing is put into temperature is that drying 4 is small in 75 DEG C of drying box
When, obtain high thermal conductivity coefficient polypropylene modified material.
Embodiment 2
A kind of high thermal conductivity coefficient polypropylene modified material, is made of following substance:
(1) by 35 parts by weight homopolypropylene SZ30S, 5 parts by weight linear low density polyethylene 7042,5 parts by weight
CA100,55 part by weight modified magnesium hydroxide H1610,0.5 parts by weight ethylene bis stearamide and 0.3 parts by weight antioxidant 1010
It is stirred 5min in high-speed mixer, is added in engagement type parallel equidirectional two-screw extruder by main feeding hopper, passes through
Melting extrusion, pelletizing obtain high thermal conductivity coefficient polypropylene modification pellet, the technique of the melting extrusion are as follows: extruder barrel temperature is
200 DEG C, screw speed 350r/min, vacuum degree be -0.04MPa.
(2) the good high thermal conductivity coefficient polypropylene modification pellet of pelletizing is put into temperature is that drying 3 is small in 85 DEG C of drying box
When, obtain high thermal conductivity coefficient polypropylene modified material.
Embodiment 3
A kind of high thermal conductivity coefficient polypropylene modified material, is made of following substance:
(1) by 30 parts by weight homopolypropylene SZ30S, 10 parts by weight HDPE 8008,5 parts by weight CA100,55 parts by weight
Modified magnesium hydroxide H1610,0.6 parts by weight ethylene bis stearamide and 0.6 parts by weight antioxidant 1024 are in high-speed mixer
It is stirred 10min, is added in engagement type parallel equidirectional two-screw extruder by main feeding hopper, through melting extrusion, pelletizing
Obtain high thermal conductivity coefficient polypropylene modification pellet, the technique of the melting extrusion are as follows: extruder barrel temperature is 210 DEG C, screw rod turns
Speed is 400r/min, vacuum degree is -0.1MPa.
(2) the good high thermal conductivity coefficient polypropylene modification pellet of pelletizing is put into temperature is that drying 4 is small in 80 DEG C of drying box
When, obtain high thermal conductivity coefficient polypropylene modified material.
Embodiment 4
A kind of high thermal conductivity coefficient polypropylene modified material, is made of following substance:
40 parts by weight of copolymer polypropylene K7227H；
8,008 8 parts by weight of HDPE；
1 parts by weight of CA100；
60 parts by weight of modified magnesium hydroxide H1610；
0.4 parts by weight of calcium stearate；
0.5 parts by weight of antioxidant 1076；
The preparation method of the high thermal conductivity coefficient polypropylene modified material is the same as embodiment 3.
Comparative example 1
According to the method for embodiment 1, modified magnesium hydroxide is replaced using magnesium hydroxide unlike.
Test: the density of high thermal conductivity coefficient polypropylene modified material prepared by above-described embodiment 1~4 and comparative example 1 is hanged
Arm beam notch impact strength, thermal coefficient are detected, and examination criteria is as shown in table 1 with performance test results.
Table 1: the performance indicator of each polypropylene modified material in Examples 1 to 4 and comparative example 1
It can be seen that from embodiment 1 and the comparison of comparative example 1, by the way that the modified high-crystallinity of silane coupling agent surface infiltration is added
Magnesium hydroxide can significantly improve the thermal coefficient of polypropylene modified material.
From embodiment 1 and the comparison of comparative example 3 as can be seen that being made by high density polyethylene (HDPE) and modified magnesium hydroxide cooperation
With the thermal coefficient of material can be significantly improved.
In conclusion high thermal conductivity coefficient polypropylene modified material prepared by the present invention has thermal coefficient height, moulding process
Simply, the advantages that products material easily obtains can be widely used in the submount materials such as LED, substitute metal material, meet most of
The use demand of product.
The preferred embodiment of the present invention has been described above in detail, still, during present invention is not limited to the embodiments described above
Detail within the scope of the technical concept of the present invention can be with various simple variants of the technical solution of the present invention are made, this
A little simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (9)
1. a kind of high thermal conductivity coefficient polypropylene modified material, which is characterized in that be made of feedstock composition, the feedstock composition
Include:
The modified magnesium hydroxide is the modified high-crystallinity magnesium hydroxide of silane coupling agent surface infiltration.
2. high thermal conductivity coefficient polypropylene modified material according to claim 1, wherein the acrylic resin is poly- for homopolymerization
Allyl resin and/or acrylic resin copolymer.
3. high thermal conductivity coefficient polypropylene modified material according to claim 1, wherein the toughener is selected from ethylene-fourth
At least one of alkene copolymer, high density polyethylene (HDPE) and linear low density polyethylene.
4. high thermal conductivity polypropylene modified material according to claim 1, wherein the average grain diameter of the modified magnesium hydroxide
It is 5~10 μm.
5. high thermal conductivity polypropylene modified material according to claim 1, wherein the compatilizer is polypropylene-maleic
Anhydride copolymer and/or ethylene-octene-maleic anhydride.
6. high thermal conductivity polypropylene modified material according to claim 1, wherein the antioxidant is selected from Hinered phenols antioxygen
At least one of agent, thioester antioxidant and phosphite ester antioxidant.
7. high thermal conductivity coefficient polypropylene modified material according to claim 1, wherein the lubricant is selected from polyethylene
At least one of wax, stearate, ethylene bis stearamide and grafting ethylene bis stearamide.
8. the preparation method of high thermal conductivity coefficient polypropylene modified material described according to claim 1~any one of 7, special
Sign is, comprising the following steps:
After mixing by acrylic resin, toughener, compatilizer, modified magnesium hydroxide, lubricant and antioxidant, double spiral shells are put into
In bar extruder, high thermal conductivity coefficient polypropylene modified material is obtained through melting extrusion, pelletizing.
9. the preparation method of high thermal conductivity coefficient polypropylene modified material according to claim 8, wherein the melting extrusion
Technique are as follows: extruder barrel temperature is 200~210 DEG C, screw speed is 350~400r/min, vacuum degree be -0.04~-
0.1MPa。
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114085453A (en) * | 2021-11-04 | 2022-02-25 | 江苏金发科技新材料有限公司 | Heat-conducting polypropylene alloy composition and preparation method and application thereof |
| CN114163705A (en) * | 2021-12-31 | 2022-03-11 | 深圳先进电子材料国际创新研究院 | Polyolefin-based flame-retardant heat conduction material 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 |
| CN114605733A (en) * | 2022-01-27 | 2022-06-10 | 武汉金发科技有限公司 | Polyolefin composite material and preparation method and application thereof |
| CN116239837A (en) * | 2022-12-09 | 2023-06-09 | 重庆会通科技有限公司 | High-heat-conductivity flame-retardant PP material and preparation method thereof |
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| CN114605733A (en) * | 2022-01-27 | 2022-06-10 | 武汉金发科技有限公司 | Polyolefin composite material and preparation method and application thereof |
| CN114605733B (en) * | 2022-01-27 | 2023-09-12 | 武汉金发科技有限公司 | Polyolefin composite material 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 |
| CN116239837A (en) * | 2022-12-09 | 2023-06-09 | 重庆会通科技有限公司 | High-heat-conductivity flame-retardant PP material and preparation method thereof |
| CN116239837B (en) * | 2022-12-09 | 2024-04-16 | 重庆会通科技有限公司 | High-heat-conductivity flame-retardant PP material and preparation method thereof |
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