CN107286462A - A kind of preparation method of high heat-resisting nanometer alumina modified polyamide material - Google Patents
A kind of preparation method of high heat-resisting nanometer alumina modified polyamide material Download PDFInfo
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- CN107286462A CN107286462A CN201710455810.XA CN201710455810A CN107286462A CN 107286462 A CN107286462 A CN 107286462A CN 201710455810 A CN201710455810 A CN 201710455810A CN 107286462 A CN107286462 A CN 107286462A
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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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
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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
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C—CHEMISTRY; METALLURGY
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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Abstract
The invention discloses a kind of preparation method of high heat-resisting alumina modified polyamide material, following steps are specifically included：First using oxalic acid aluminium as raw material, neopelex is added before precipitation, and in precipitation, sodium hydroxide and citric acid are added dropwise simultaneously, obtained sediment calcines obtained aluminum oxide under cryogenic, and the aluminum oxide is nanoscale, and there is hole in irregular shape on surface, and Surface coating has neopelex, good dispersion；Then it is polypropylene, silica gel, cocoanut fatty acid diethanolamide, antioxidant is uniform in high-speed mixer and mixing, then add aluminum oxide obtained above and be mixed evenly, obtain compound；By compound obtained above by double screw extruder extruding pelletization, alumina modified polyamide material is obtained.The preparation method energy consumption is low, and obtained material mechanical performance is good, and wear-resisting, heat resistance is good, and stability is good.
Description
Technical field：
The present invention relates to field of compound material, a kind of high heat-resisting nanometer alumina modified polyamide material is specifically related to
Preparation method.
Background technology：
The characteristics of polyamide polymer has strong polarity, intermolecular energy formation hydrogen bond, and with certain activity.Due to tool
There are excellent mechanical property, wearability, self lubricity, oil resistivity, corrosion resistance and preferable machine-shaping property, extensively should
For automobile component, electronic apparatus, the industry such as petrochemical industry.Polyamide it is highly polar so that its water imbibition is larger, to product
Dimensional stability influence is larger, has an effect on the electrical property of material.In addition, the poor heat resistance and low temperature impact strength of polyamide are low
Shortcoming limits the application field of polyamide material.
Generally, people improve the combination property of polyamide by adding various fillers.In recent years, with nano science
Continue to develop the continuous maturation with nanometer technology, improved by adding nano material the performance of polymeric matrix material gradually into
For the focus in investigation of materials field.Polyamide polymer is due to its extensive use in automobile, electronic apparatus and household products
And the favor of people is enjoyed, the intensity, toughness, resistance of polyamide-based matrix material are improved by adding functional nanomaterials
The performances such as combustion, barrier turn into scholars and compare research direction interested.Answering for polyamide polymer is also widened significantly simultaneously
With field, therefore, polyamide-based nano composite material will turn into one of best nano composite material of following application prospect.Mesh
Before, conventional method is that inorganic nano-filler is added into polyamide material, to improve the toughness and intensity of matrix and heat-resisting
Performance, wherein, aluminum oxide is widely used in the modification of polyamide as cheap filler.
Chinese patent (201210260919.5) discloses a kind of heat conduction polyamide compoiste material, and it includes following weight hundred
Divide the component of ratio：Polyamide 18.2-58.6%, lubricant 0.1-1.0%, antioxidant 0.1-0.5%, surface modifier 1.0-
1.5% and enhanced thermal conduction modifying agent 40-81%, although the composite good heat conductivity, but its enhanced thermal conduction modifying agent adds
Dosage is larger, not only increases cost, also causes the compatibility of enhanced thermal conduction modifying agent and matrix material to solve more difficulty.
The content of the invention：
It is an object of the invention to provide a kind of preparation method of high heat-resisting nanometer alumina modified polyamide material, the system
Preparation Method is simple to operate, and energy consumption is low, and obtained material mechanical performance is good, wear-resisting, Good Heat-resistance.
To achieve the above object, the present invention uses following technical scheme：
A kind of preparation method of high heat-resisting alumina modified polyamide material, comprises the following steps：
(1) at 40-50 DEG C, oxalic acid aluminium and deionized water is mixed into solid dissolving, solution A is obtained；Xiang Rong
Neopelex is added in liquid A and is uniformly mixed obtained solution B；Solution B is placed in two burets are installed
In three-necked flask, and 65-110 DEG C is warming up to, and sodium hydrate aqueous solution and aqueous citric acid solution, drop is added dropwise simultaneously while stirring
Add after finishing, continue to stir 5-13h, obtain sediment, 10-20h will be calcined at 80-180 DEG C after sediment filtration washing, obtained
To aluminum oxide；
(2) it is polypropylene, silica gel, cocoanut fatty acid diethanolamide, antioxidant is uniform in high-speed mixer and mixing, so
Aluminum oxide made from adding step (1) afterwards is mixed evenly, and obtains compound；
(3) by compound obtained above by double screw extruder extruding pelletization, alumina modified polyamide material is obtained.
As the preferred of above-mentioned technical proposal, in step (1), the amount ratio of the oxalic acid aluminium and deionized water is 1g：
(30-50)ml。
As the preferred of above-mentioned technical proposal, in step (1), the addition of neopelex is oxalic acid aluminum
The 1-4% of amount.
As the preferred of above-mentioned technical proposal, in step (1), the oxalic acid aluminium, sodium hydroxide, the mass ratio of citric acid
For 3:5:(0.1-0.35).
As the preferred of above-mentioned technical proposal, in step (1), the mass concentration of the sodium hydrate aqueous solution is 15%,
The concentration of aqueous citric acid solution is 3-8%.
As the preferred of above-mentioned technical proposal, in step (1), the sodium hydrate aqueous solution, the drop of aqueous citric acid solution
Acceleration is respectively 0.5-1.5 ls/h, 1-4 ls/h.
As the preferred of above-mentioned technical proposal, in step (2), the antioxidant is that ascorbyl palmitate, tea are more
One or more in phenol, butylated hydroxy anisole.
It is the polypropylene, silica gel, cocoanut fatty acid diethanolamide, anti-oxidant as the preferred of above-mentioned technical proposal
Agent, aluminum oxide addition in parts by weight, be respectively：40-80 parts of polypropylene, 3-7 parts of silica gel, coco-nut oil fatty acid diethanol
1-2 parts of acid amides, 1-5 parts of antioxidant, 5-11 parts of aluminum oxide.
As the preferred of above-mentioned technical proposal, in step (3), the temperature that compound is extruded by double screw extruder is 250-
300℃。
As the preferred of above-mentioned technical proposal, the particle size of aluminum oxide made from step (1) is 10-30nm, and surface
There is irregular cavernous structure.
The invention has the advantages that：
First, oxalic acid aluminum solutions, and the addition detergent alkylate sulphur into the solution is made in the present invention at a certain temperature
Sour sodium；Then be warming up to certain temperature under counterflow condition in three-necked flask, and be added dropwise simultaneously at different rates citric acid and
Sodium hydroxide solution, citric acid can effectively control the formation speed of sediment so that obtained sediment structure cell is stable, impurity
It is few, and the sedimentation time is appropriate, and energy consumption is low；On the other hand, the present invention realizes the calcining of sediment at a lower temperature so that system
The irregular hole of the tangible shape of oxidation aluminium surface obtained, and surface is uniformly adsorbed with neopelex, obtained oxygen
Change aluminium good dispersion, the presence of irregular holes forms continuous heat dissipation channel, it is more preferable that it is used for energy during polypropylene modification
Improve the heat resistance of material, and it is good with matrix material compatibility, obtained stability of material is good, and mechanical property is good；
There is more N-H groups, the present invention adds silica gel, coconut grease in matrix material in polyamide substrate material
Fat acid diglycollic amide can be bonded with N-H, improved the crosslink density of matrix material, effectively improved the mechanical property of material
Energy.
Embodiment：
In order to be better understood from the present invention, the present invention is further described using embodiment by the present invention, and embodiment is served only for
The present invention is explained, any restriction will not be constituted to the present invention.
Embodiment 1
A kind of preparation method of high heat-resisting alumina modified polyamide material, comprises the following steps：
(1) at 40-50 DEG C, 1g oxalic acid aluminium and 30ml deionized waters is mixed into solid dissolving, solution is obtained
A；0.01g neopelexes are added into solution A and are uniformly mixed obtained solution B；Solution B is placed in and is provided with two
In the three-necked flask of individual buret, and 65 DEG C are warming up to, and it is 15% sodium hydroxide water that mass concentration is added dropwise simultaneously while stirring
After solution and mass concentration are 3% aqueous citric acid solution, completion of dropping, continue to stir 13h, sediment is obtained, by sediment mistake
20h is calcined at 80 DEG C after filter washing, aluminum oxide is obtained；Wherein, oxalic acid aluminium, sodium hydroxide, the mass ratio of citric acid are 3:
5:0.1, sodium hydrate aqueous solution, the rate of addition of aqueous citric acid solution are respectively 0.5 l/h, 1 l/h；
(2) by 40 parts of polypropylene, 3 parts of silica gel, 1 part of cocoanut fatty acid diethanolamide, 1 part of antioxidant in high mixer
In be well mixed, then add 5 parts of steps (1) made from aluminum oxide be mixed evenly, obtain compound；
(3) compound obtained above is extruded by double screw extruder, granulated, obtain alumina modified polyamide material
Material.
Embodiment 2
A kind of preparation method of high heat-resisting alumina modified polyamide material, comprises the following steps：
(1) at 40-50 DEG C, 1g oxalic acid aluminium and 50ml deionized waters is mixed into solid dissolving, solution is obtained
A；0.04g neopelexes are added into solution A and are uniformly mixed obtained solution B；Solution B is placed in and is provided with two
In the three-necked flask of individual buret, and 110 DEG C are warming up to, and it is 15% sodium hydroxide water that mass concentration is added dropwise simultaneously while stirring
After solution and mass concentration are 8% aqueous citric acid solution, completion of dropping, continue to stir 5h, obtain sediment, sediment is filtered
10h is calcined at 180 DEG C after washing, aluminum oxide is obtained；Wherein, oxalic acid aluminium, sodium hydroxide, the mass ratio of citric acid are 3:5:
0.35, sodium hydrate aqueous solution, the rate of addition of aqueous citric acid solution are respectively 1.5 ls/h, 4 ls/h；
(2) by 80 parts of polypropylene, 7 parts of silica gel, 2 parts of cocoanut fatty acid diethanolamides, 5 parts of antioxidants in high mixer
In be well mixed, then add 11 parts of steps (1) made from aluminum oxide be mixed evenly, obtain compound；
(3) compound obtained above is extruded by double screw extruder, granulated, obtain alumina modified polyamide material
Material.
Embodiment 3
A kind of preparation method of high heat-resisting alumina modified polyamide material, comprises the following steps：
(1) at 40-50 DEG C, 1g oxalic acid aluminium and 35ml deionized waters is mixed into solid dissolving, solution is obtained
A；0.02g neopelexes are added into solution A and are uniformly mixed obtained solution B；Solution B is placed in and is provided with two
In the three-necked flask of individual buret, and 80 DEG C are warming up to, and it is 15% sodium hydroxide water that mass concentration is added dropwise simultaneously while stirring
After solution and mass concentration are 4% aqueous citric acid solution, completion of dropping, continue to stir 11h, sediment is obtained, by sediment mistake
18h is calcined at 100 DEG C after filter washing, aluminum oxide is obtained；Wherein, oxalic acid aluminium, sodium hydroxide, the mass ratio of citric acid are 3:
5:0.3, sodium hydrate aqueous solution, the rate of addition of aqueous citric acid solution are respectively 0.7 l/h, 2 ls/h
(2) it is 50 parts of polypropylene, 4 parts of silica gel, 1.2 parts of cocoanut fatty acid diethanolamides, 2 parts of antioxidants are mixed in height
It is well mixed in machine, then aluminum oxide made from 7 parts of steps (1) of addition is mixed evenly, and obtains compound；
(3) compound obtained above is extruded by double screw extruder, granulated, obtain alumina modified polyamide material
Material.
Embodiment 4
A kind of preparation method of high heat-resisting alumina modified polyamide material, comprises the following steps：
(1) at 40-50 DEG C, 1g oxalic acid aluminium and 40ml deionized waters is mixed into solid dissolving, solution is obtained
A；0.025g neopelexes are added into solution A and are uniformly mixed obtained solution B；Solution B is placed in and is provided with
In the three-necked flask of two burets, and 90 DEG C are warming up to, and it is 15% sodium hydroxide that mass concentration is added dropwise simultaneously while stirring
After the aqueous solution and mass concentration are 5% aqueous citric acid solution, completion of dropping, continue to stir 9h, sediment is obtained, by sediment mistake
16h is calcined at 120 DEG C after filter washing, aluminum oxide is obtained；Wherein, oxalic acid aluminium, sodium hydroxide, the mass ratio of citric acid are 3:
5:0.25, sodium hydrate aqueous solution, the rate of addition of aqueous citric acid solution are respectively 0.9 l/h, 2.5 ls/h；
(2) it is 60 parts of polypropylene, 5 parts of silica gel, 1.4 parts of cocoanut fatty acid diethanolamides, 2 parts of antioxidants are mixed in height
It is well mixed in machine, then aluminum oxide made from 9 parts of steps (1) of addition is mixed evenly, and obtains compound；
(3) compound obtained above is extruded by double screw extruder, granulated, obtain alumina modified polyamide material
Material.
Embodiment 5
A kind of preparation method of high heat-resisting alumina modified polyamide material, comprises the following steps：
(1) at 40-50 DEG C, 1g oxalic acid aluminium and 45ml deionized waters is mixed into solid dissolving, solution is obtained
A；0.03g neopelexes are added into solution A and are uniformly mixed obtained solution B；Solution B is placed in and is provided with two
In the three-necked flask of individual buret, and 100 DEG C are warming up to, and it is 15% sodium hydroxide water that mass concentration is added dropwise simultaneously while stirring
After solution and mass concentration are 6% aqueous citric acid solution, completion of dropping, continue to stir 8h, obtain sediment, sediment is filtered
14h is calcined at 140 DEG C after washing, aluminum oxide is obtained；Wherein, oxalic acid aluminium, sodium hydroxide, the mass ratio of citric acid are 3:5:
0.2, sodium hydrate aqueous solution, the rate of addition of aqueous citric acid solution are respectively 1.1 ls/h, 3 ls/h；
(2) it is 70 parts of polypropylene, 5 parts of silica gel, 1.6 parts of cocoanut fatty acid diethanolamides, 3 parts of antioxidants are mixed in height
It is well mixed in machine, then aluminum oxide made from 9 parts of steps (1) of addition is mixed evenly, and obtains compound；
(3) compound obtained above is extruded by double screw extruder, granulated, obtain alumina modified polyamide material
Material.
Embodiment 6
A kind of preparation method of high heat-resisting alumina modified polyamide material, comprises the following steps：
(1) at 40-50 DEG C, 1g oxalic acid aluminium and 50ml deionized waters is mixed into solid dissolving, solution is obtained
A；0.035g neopelexes are added into solution A and are uniformly mixed obtained solution B；Solution B is placed in and is provided with
In the three-necked flask of two burets, and 100 DEG C are warming up to, and it is 15% sodium hydroxide that mass concentration is added dropwise simultaneously while stirring
After the aqueous solution and mass concentration are 7% aqueous citric acid solution, completion of dropping, continue to stir 7h, sediment is obtained, by sediment mistake
12h is calcined at 160 DEG C after filter washing, aluminum oxide is obtained；Wherein, oxalic acid aluminium, sodium hydroxide, the mass ratio of citric acid are 3:
5:0.15, sodium hydrate aqueous solution, the rate of addition of aqueous citric acid solution are respectively 1.3 ls/h, 3.5 ls/h；
(2) it is 75 parts of polypropylene, 6 parts of silica gel, 1.8 parts of cocoanut fatty acid diethanolamides, 4 parts of antioxidants are mixed in height
It is well mixed in machine, then aluminum oxide made from 11 parts of steps (1) of addition is mixed evenly, and obtains compound；
(3) compound obtained above is extruded by double screw extruder, granulated, obtain alumina modified polyamide material
Material.
Comparative example 1
A kind of preparation method of high heat-resisting alumina modified polyamide material, comprises the following steps：
(1) at 40-50 DEG C, 1g oxalic acid aluminium and 50ml deionized waters is mixed into solid dissolving, solution is obtained
A；0.035g neopelexes are added into solution A and are uniformly mixed obtained solution B；Solution B is placed in and is provided with
In the three-necked flask of two burets, and 100 DEG C are warming up to, and it is 7% aqueous citric acid solution that mass concentration is added dropwise while stirring,
Mass concentration is added dropwise after completion of dropping for 15% sodium hydrate aqueous solution, after completion of dropping, continues to stir 7h, obtains sediment,
12h will be calcined at 160 DEG C after sediment filtration washing, obtain aluminum oxide；Wherein, oxalic acid aluminium, sodium hydroxide, citric acid
Mass ratio is 3:5:0.15, sodium hydrate aqueous solution, the rate of addition of aqueous citric acid solution are respectively 1.3 ls/h, 3.5 liters/
Hour；
(2) it is 75 parts of polypropylene, 6 parts of silica gel, 1.8 parts of cocoanut fatty acid diethanolamides, 4 parts of antioxidants are mixed in height
It is well mixed in machine, then aluminum oxide made from 11 parts of steps (1) of addition is mixed evenly, and obtains compound；
(3) compound obtained above is extruded by double screw extruder, granulated, obtain alumina modified polyamide material
Material.
Comparative example 2
A kind of preparation method of high heat-resisting alumina modified polyamide material, comprises the following steps：
By 75 parts of polypropylene, 6 parts of silica gel, 1.8 parts of cocoanut fatty acid diethanolamides, 4 parts of antioxidants in high mixer
In be well mixed, then add 11 parts of commercially available nano aluminium oxides be mixed evenly, obtain compound；
Compound obtained above is extruded by double screw extruder, granulated, alumina modified polyamide material is obtained.
Performance detection such as table 1 is carried out to polyamide material obtained above, testing result is as shown in table 1：
Table 1
| Tensile strength, MPa | Bending strength, MPa | Notch impact strength, J/m | Thermal conductivity factor, W/mK | |
| Embodiment 1 | 135 | 262 | 108 | 4.655 |
| Embodiment 2 | 128 | 273 | 105 | 4.602 |
| Embodiment 3 | 137 | 245 | 110 | 4.735 |
| Embodiment 4 | 142 | 260 | 105 | 4.585 |
| Embodiment 5 | 135 | 249 | 105 | 4.603 |
| Embodiment 6 | 140 | 255 | 108 | 4.665 |
| Comparative example 1 | 100 | 201 | 85 | 1.091 |
| Comparative example 2 | 75 | 109 | 32 | 1.002 |
From the point of view of above table, the present invention is under conditions of the addition of less aluminum oxide, obtained material mechanical performance and resistance to
Preferably, and for addition commercial alumina, the aluminum oxide that the present invention is provided can preferably improve material to hot property
Performance, and the order of addition of sodium hydroxide and citric acid also has a great impact to the performance of material.
Claims (10)
1. a kind of preparation method of high heat-resisting alumina modified polyamide material, it is characterised in that comprise the following steps：
(1) at 40-50 DEG C, oxalic acid aluminium and deionized water is mixed into solid dissolving, solution A is obtained；Into solution A
Add neopelex and be uniformly mixed obtained solution B；Solution B is placed in three mouthfuls of burnings for being provided with two burets
In bottle, and 65-110 DEG C is warming up to, and sodium hydrate aqueous solution and aqueous citric acid solution, completion of dropping is added dropwise simultaneously while stirring
Afterwards, continue to be stirred at reflux 5-13h, obtain sediment, 10-20h will be calcined at 80-180 DEG C after sediment filtration washing, obtained
Aluminum oxide；
(2) by polypropylene, silica gel, cocoanut fatty acid diethanolamide, antioxidant in high-speed mixer and mixing uniform, Ran Houjia
Aluminum oxide made from entering step (1) is mixed evenly, and obtains compound；
(3) by compound obtained above by double screw extruder extruding pelletization, alumina modified polyamide material is obtained.
2. a kind of preparation method of high heat-resisting alumina modified polyamide material as claimed in claim 1, it is characterised in that：
In step (1), the amount ratio of the oxalic acid aluminium and deionized water is 1g：(30-50)ml.
3. a kind of preparation method of high heat-resisting alumina modified polyamide material as claimed in claim 1, it is characterised in that：
In step (1), the addition of neopelex is the 1-4% of oxalic acid aluminum amount.
4. a kind of preparation method of high heat-resisting alumina modified polyamide material as claimed in claim 1, it is characterised in that：
In step (1), the oxalic acid aluminium, sodium hydroxide, the mass ratio of citric acid are 3:5:(0.1-0.35).
5. a kind of preparation method of high heat-resisting alumina modified polyamide material as claimed in claim 1, it is characterised in that：
In step (1), the mass concentration of the sodium hydrate aqueous solution is 15%, and the concentration of aqueous citric acid solution is 3-8%.
6. a kind of preparation method of high heat-resisting alumina modified polyamide material as claimed in claim 1, it is characterised in that：
In step (1), the sodium hydrate aqueous solution, the rate of addition of aqueous citric acid solution are respectively 0.5-1.5 ls/h, 1-4
L/h.
7. a kind of preparation method of high heat-resisting alumina modified polyamide material as claimed in claim 1, it is characterised in that：
In step (2), the antioxidant is the one or more in ascorbyl palmitate, Tea Polyphenols, butylated hydroxy anisole.
8. a kind of preparation method of high heat-resisting alumina modified polyamide material as claimed in claim 1, it is characterised in that：
The polypropylene, silica gel, cocoanut fatty acid diethanolamide, antioxidant, aluminum oxide addition in parts by weight, respectively
For：40-80 parts of polypropylene, 3-7 parts of silica gel, 1-2 parts of cocoanut fatty acid diethanolamide, 1-5 parts of antioxidant, aluminum oxide 5-
11 parts.
9. a kind of preparation method of high heat-resisting alumina modified polyamide material as claimed in claim 1, it is characterised in that：
In step (3), the temperature that compound is extruded by double screw extruder is 250-300 DEG C.
10. a kind of preparation method of high heat-resisting alumina modified polyamide material as claimed in claim 1, its feature exists
In：The particle size of aluminum oxide made from step (1) is 10-30nm, and there is irregular cavernous structure on surface.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103937177A (en) * | 2014-04-19 | 2014-07-23 | 中山市永威新材料有限公司 | Highly heat-conducting modified plastic and preparation method thereof |
| CN106009281A (en) * | 2016-06-29 | 2016-10-12 | 阜阳市远大印刷有限公司 | Heat-resistant PP synthetic paper containing compound modified gamma-alumina powder and preparation method of PP synthetic paper |
| CN106700261A (en) * | 2017-01-16 | 2017-05-24 | 江苏洪昌科技股份有限公司 | Antistatic flame-retardant heat-conducting polypropylene material and preparation method thereof |
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2017
- 2017-06-16 CN CN201710455810.XA patent/CN107286462A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103937177A (en) * | 2014-04-19 | 2014-07-23 | 中山市永威新材料有限公司 | Highly heat-conducting modified plastic and preparation method thereof |
| CN106009281A (en) * | 2016-06-29 | 2016-10-12 | 阜阳市远大印刷有限公司 | Heat-resistant PP synthetic paper containing compound modified gamma-alumina powder and preparation method of PP synthetic paper |
| CN106700261A (en) * | 2017-01-16 | 2017-05-24 | 江苏洪昌科技股份有限公司 | Antistatic flame-retardant heat-conducting polypropylene material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 温变英主编: "《高分子材料加工》", 30 June 2016 * |
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Application publication date: 20171024 |