CN105199191B - A kind of high tenacity heat conductive flame-retarding plastics and preparation method thereof - Google Patents
A kind of high tenacity heat conductive flame-retarding plastics and preparation method thereof Download PDFInfo
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- CN105199191B CN105199191B CN201510591406.6A CN201510591406A CN105199191B CN 105199191 B CN105199191 B CN 105199191B CN 201510591406 A CN201510591406 A CN 201510591406A CN 105199191 B CN105199191 B CN 105199191B
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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
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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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
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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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 invention provides the formula composition of a kind of high tenacity heat conductive flame-retarding plastics and preparation method thereof, including following percentage by weight：HDPE22~49%；Self-control compounding heat filling 35~55%；Toughener 5~7%；Fire retardant 10~14%；Antioxidant 0.2~0.5%；Dispersant 0.5~0.7%；Coupling agent 0.3~0.8%.Can increase substantially the toughness of material, fire resistance, thermal conductivity, and by weighing, mixing, melting extrusion, the method being granulated can be prepared by, and simple to operate, condition is easily-controllable, and cost is cheap, low for equipment requirements, suitable for industrialized production.
Description
Technical field
The present invention relates to technical field of polymer materials, more particularly to a kind of high tenacity heat conductive flame-retarding plastics and its preparation side
Method.
Background technology
High density polyethylene (HDPE) (HDPE) is that a kind of crystallinity is high, nonpolar thermoplastic resin.Ortho states HDPE appearance is in
Milky, it is in a certain degree of translucent in meagre section, there is good heat resistance and cold resistance, chemical stability is good,
Also there is higher rigidity and toughness, mechanical strength is good, dielectric properties, and environmental stress crack resistance is also preferable.But its is ventilative
Difference, yielding, easy to aging, easy embrittlement, it is greatly limited its application.Its thermal conductivity factor is relatively low simultaneously, only
0.33W/m.k, and itself does not have flame retardant effect, do not meet makes on good heat dissipation effect and the high product of flame-retardancy requirements is needed
With.
Current researcher both domestic and external has carried out substantial amounts of research for Heat Conduction Material, is carried out primarily directed to PA6, PA66
Modified and research and development, have been achieved for certain progress.But due to the problem of cost is high or material is partially crisp, do not obtain wide
General application.It is contemplated that replacing PA6, PA66 with HDPE, then appropriate toughener POE improvement heat conduction HDPE toughness is added,
Simultaneously because HDPE loadings are big, also have higher rigidity and toughness so that material keeps material while ensureing that cost is low
The higher toughness of material.
Now, the physical dimension of electronics and computer aspect product is constantly reduced, and the heat to be born is increasing,
So that the research of Heat Conduction Material is more and more important.HDPE material light weight, molding processibility is good, cheap and good insulating,
But thermal conductivity factor is low., can be notable by adding heat filling magnesia, aluminum oxide, carborundum, aluminium nitride, boron nitride etc.
Raising heat conductivility.
At present, it is all the research on PA6, PA66 heat-conducting plastic to have many patents both at home and abroad, but is used as base by the use of HDPE
Body is fewer come the heat-conducting plastic studied.Therefore, the present invention is great for heat-conducting plastic Research Significance, has a extensive future.
The content of the invention
It is an object of the invention to overcome the defect of prior art, there is provided a kind of high tenacity heat conductive flame-retarding plastics, it has
There are high tenacity, fire-retardant characteristic.
In addition, the present invention a kind of preparation method of high tenacity heat conductive flame-retarding plastics is also provided, its have it is simple to operate, be applicable
In the characteristic of industrialized production.
What the present invention was realized in：A kind of high tenacity heat conductive flame-retarding plastics, include the formula group of following percentage by weight
Into：
Further, the HDPE is the other high density polyethylene (HDPE) of high flow stage, wherein melt flows mass rate (MFR)
For 7-9 (units：g/10min；Test condition：190 DEG C/2.16kg), density 0.95-0.96g/cm3.
Further, the self-control compounding heat filling is magnesia, aluminum oxide, zinc oxide, silicon nitride, in aluminium carbide
One or more, compound again after special surface activation process according to certain ratio, finally pressed necessarily with crystal whisker materials
Ratio is well mixed and obtains.
Further, the copolymer p OE that it is ethene and octene that the toughener, which is,.
Further, the fire retardant be antimony oxide and bromide fire retardant (such as tetrabromobisphenol A, TDE,
Brominated Polystyrene, brominated epoxy, brominated triazine etc.) with 1：3 ratio compounding.
Further, the antioxidant is four [3- (3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester masters
Two kinds of antioxidant and phosphorous acid three (2,4- 6- di-tert-butyl phenyl ester) auxiliary anti-oxidant press 1:1 compounding.
Further, the dispersant is N, N'- ethylene bis stearamide dispersant.
Further, the coupling agent is one in organic complex, silanes, titanate ester and aluminate coupling agent
Kind is several.
A kind of preparation method of high tenacity heat conductive flame-retarding plastics, comprises the following steps：
(1) corresponding each component raw material are weighed by above-mentioned percentage by weight；
(2) by each component raw material weighed in step (1) in high-speed mixer and mixing 6-10 minutes；
(3) mixing material being well mixed in step (2) is put into the loading hopper of double screw extruder, squeezed through melting
Go out, be granulated；Wherein 160-175 DEG C of the area's temperature of double screw extruder one, two 165-180 DEG C of area's temperature, three area temperature 170-190
DEG C, four 170-190 DEG C of area's temperature, 180-200 DEG C of head, 2~3min of residence time, pressure 12-18MPa, screw speed
130-150 revs/min.
The present invention has good phase as toughener, the toughener using the copolymer p OE of ethene and octene with material
Capacitive, and the toughness of material can be increased substantially.It can assign material excellent fire resistance using fire retardant.Use
Self-control compounding heat filling is smaller for the whiteness and Effect on Mechanical Properties of material, contains in self-control compounds heat filling system
Whisker composition can cause bridge joint effect occurs between particle so that the thermal conducting path being made up of heat filling is further perfect, from
And the thermal conductivity of composite can be made to improve rapidly.
The another present invention also provides a kind of preparation method of high tenacity heat conductive flame-retarding plastics, and by weighing, mixing, melting is squeezed
Go out, be granulated, simple to operate, condition is easily-controllable, and cost is cheap, low for equipment requirements, suitable for industrialized production.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is flow chart provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Such as Fig. 1, the embodiment of the present invention provides a kind of high tenacity heat conductive flame-retarding plastics and preparation method thereof, specifically, described
High tenacity heat conductive flame-retarding plastics, include the formula composition of following percentage by weight：
Further, the HDPE is the other high density polyethylene (HDPE) of high flow stage, wherein melt flows mass rate (MFR)
For 7-9 (units：g/10min；Test condition：190 DEG C/2.16kg), density 0.95-0.96g/cm3, from Jilin Petrochemical
FHC7260。
Described self-control compounding heat filling is magnesia, aluminum oxide, zinc oxide, silicon nitride, one kind in aluminium carbide or
It is several, according to certain ratio compounding again after special surface activation process, mixed according to a certain percentage with crystal whisker materials
It is even and obtain.Concrete operations are as follows：The magnesia 30%, the oxygen that particle diameter is 300 mesh that particle diameter is 1600 mesh are weighed by weight percentage
Change magnesium 20%, the aluminum oxide 15% that particle diameter is 300 mesh, the zinc oxide 28% that particle diameter is 300 mesh, the aluminium carbide that particle diameter is 300 mesh
15%, 2% silane coupler is added, is stirred, is then placed in baking oven to be dried 4 hours with 80 DEG C and fully dries.
Then take the mixed material of drying well mixed from the calcium sulfate crystal whiskers 15% of 3000 mesh with whisker by weight 85%, so
It can be obtained by self-control compounding heat filling.
The copolymer p OE that it is ethene and octene that described toughener, which is,.From Tao Shi 8150.
Described fire retardant is that (such as tetrabromobisphenol A, TDE, bromination are gathered for antimony oxide and bromide fire retardant
Styrene, brominated epoxy, brominated triazine etc.) with 1：3 ratio compounding, antimony oxide and extra large Wang Huagong from occasion state antimony industry
TDE.
Described antioxidant be four [3- (3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester primary antioxidants and
Two kinds of phosphorous acid three (2,4- 6- di-tert-butyl phenyl ester) auxiliary anti-oxidant presses 1:1 compounding, is produced from Ciba companies, trade names difference
For Irganox1010, and Irganox168.
Described dispersant is N, N'- ethylene bis stearamide dispersant.From Guangzhou swallow Thailand chemical industry EBS120D.
Described coupling agent is organic complex, silanes, titanate ester and one kind or several in aluminate coupling agent
Kind.From the KH-550 of Hangzhou boiling point Chemical Manufacture.
The preparation method of the high tenacity heat conductive flame-retarding plastics, comprises the following steps：
(1) corresponding each component raw material are weighed by above-mentioned percentage by weight；
(2) by each component raw material weighed in step (1) in high-speed mixer and mixing 6-10 minutes；
(3) mixing material being well mixed in step (2) is put into the loading hopper of double screw extruder, squeezed through melting
Go out, be granulated；Processing technology is as follows：160-175 DEG C of the area's temperature of double screw extruder one, two 165-180 DEG C of area's temperature, three area's temperature
170-190 DEG C, four 170-190 DEG C of area's temperature, 180-200 DEG C of head, 2~3min of residence time, pressure 12-18MPa, screw rod
130-150 revs/min of rotating speed.
With reference to specific embodiment, the present invention is described in detail：
Embodiment 1
By percentage by weight be HDPE 45.6%, self-control compounding heat filling 35%, toughener 6%, fire retardant 12%,
Antioxidant 0.3%, dispersant 0.6%, coupling agent 0.5% mix 8 minutes in high speed mixer, are put into after being sufficiently mixed uniformly
To the loading hopper of double screw extruder, through melting extrusion, it is granulated；Processing technology is as follows：The area's temperature 165 of double screw extruder one
DEG C, two 175 DEG C of area's temperature, three 180 DEG C of area's temperature, four 180 DEG C of area's temperature, 190 DEG C, residence time 2min of head, pressure is
16MPa, 150 revs/min of screw speed.
Embodiment 2
By percentage by weight be HDPE 35.6%, self-control compounding heat filling 45%, toughener 6%, fire retardant 12%,
Antioxidant 0.3%, dispersant 0.6%, coupling agent 0.5% mix 8 minutes in high speed mixer, are put into after being sufficiently mixed uniformly
To the loading hopper of double screw extruder, through melting extrusion, it is granulated；Processing technology is as follows：The area's temperature 165 of double screw extruder one
DEG C, two 175 DEG C of area's temperature, three 180 DEG C of area's temperature, four 180 DEG C of area's temperature, 190 DEG C, residence time 2min of head, pressure is
16MPa, 150 revs/min of screw speed.
Embodiment 3
By percentage by weight be HDPE 25.6%, self-control compounding heat filling 55%, toughener 6%, fire retardant 12%,
Antioxidant 0.3%, dispersant 0.6%, coupling agent 0.5% mix 8 minutes in high speed mixer, are put into after being sufficiently mixed uniformly
To the loading hopper of double screw extruder, through melting extrusion, it is granulated；Processing technology is as follows：The area's temperature 165 of double screw extruder one
DEG C, two 175 DEG C of area's temperature, three 180 DEG C of area's temperature, four 180 DEG C of area's temperature, 190 DEG C, residence time 2min of head, pressure is
16MPa, 150 revs/min of screw speed.
Comparative example 1
It is HDPE 80.6% by percentage by weight, self-control compounding heat filling 0%, toughener 6%, fire retardant 12%, anti-
Oxygen agent 0.3%, dispersant 0.6%, coupling agent 0.5% mix 8 minutes in high speed mixer, are put into after being sufficiently mixed uniformly
The loading hopper of double screw extruder, through melting extrusion, it is granulated；Processing technology is as follows：165 DEG C of one area's temperature of double screw extruder,
Two 175 DEG C of area's temperature, three 180 DEG C of area's temperature, four 180 DEG C of area's temperature, 190 DEG C, residence time 2min, pressure 16MPa of head,
150 revs/min of screw speed.
Comparative example 2
By percentage by weight be HDPE 31.6%, self-control compounding heat filling 55%, toughener 0%, fire retardant 12%,
Antioxidant 0.3%, dispersant 0.6%, coupling agent 0.5% mix 8 minutes in high speed mixer, are put into after being sufficiently mixed uniformly
To the loading hopper of double screw extruder, through melting extrusion, it is granulated；Processing technology is as follows：The area's temperature 165 of double screw extruder one
DEG C, two 175 DEG C of area's temperature, three 180 DEG C of area's temperature, four 180 DEG C of area's temperature, 190 DEG C, residence time 2min of head, pressure is
16MPa, 150 revs/min of screw speed.
Comparative example 3
It is HDPE 37.6% by percentage by weight, self-control compounding heat filling 55%, toughener 6%, fire retardant 0%, anti-
Oxygen agent 0.3%, dispersant 0.6%, coupling agent 0.5% mix 8 minutes in high speed mixer, are put into after being sufficiently mixed uniformly
The loading hopper of double screw extruder, through melting extrusion, it is granulated；Processing technology is as follows：165 DEG C of one area's temperature of double screw extruder,
Two 175 DEG C of area's temperature, three 180 DEG C of area's temperature, four 180 DEG C of area's temperature, 190 DEG C, residence time 2min, pressure 16MPa of head,
150 revs/min of screw speed.
[performance evaluation carries out standard and test data]
The particle for completing to be granulated in above-described embodiment 1~3, comparative example 1~3 is dried in 70~80 DEG C of convection oven
4~6 hours, then dry particle is molded sample preparation on 80T injection machines；The result of test see the table below：
It can be seen from upper table embodiment 1~3 and comparative example 1 compared with simple HDPE resin, self-control compounding heat filling
Addition can substantially increase composite the coefficient of heat conduction, self-control compounding heat filling content be 55% when, thermal conductivity factor
1.4 W/ (mK) are reached.By upper table embodiment 1~3 and comparative example 2 it can be seen that when adding toughener, composite rushes
Performance is hit to increase significantly.Show material toughness be improved significantly.It can be seen by upper table embodiment 1~3 and comparative example 3
When going out to add fire retardant, the fire resistance of composite can increase significantly.Material prepared by the present invention while have high
Thermal conductivity, anti-flammability and mechanical property, high thermal conductivity factor, anti-flammability and height can not be obtained simultaneously by avoiding market like product
Mechanical property the shortcomings that, extend the application field of high-density polyethylene composite material.
A kind of high tenacity heat conductive flame-retarding plastics provided by the present invention and preparation method thereof are described in detail above,
Specific case used herein is set forth to the principle and embodiment of the present invention, and the explanation that the above implements an example is
It is used to help understand the method and its core concept of the present invention；Meanwhile for those of ordinary skill in the art, according to the present invention
Thought, there will be changes in specific embodiments and applications, in summary, this specification content should not be understood
For limitation of the present invention.
Claims (8)
- A kind of 1. high tenacity heat conductive flame-retarding plastics, it is characterised in that the formula composition including following percentage by weight：Described self-control compounding heat filling is magnesia, aluminum oxide, zinc oxide, silicon nitride, the one or more in aluminium carbide, According to certain ratio compounding again after special surface activation process, be well mixed according to a certain percentage with crystal whisker materials and ；Concrete operations are as follows：The magnesia 30%, the magnesia that particle diameter is 300 mesh that particle diameter is 1600 mesh are weighed by weight percentage 20%th, particle diameter is that zinc oxide 28%, particle diameter that aluminum oxide 15%, the particle diameter of 300 mesh are 300 mesh are the aluminium carbide 15% of 300 mesh, 2% silane coupler is added, is stirred, is then placed in baking oven to be dried 4 hours with 80 DEG C and fully dries；Then take The mixed material of drying is well mixed from the calcium sulfate crystal whiskers 15% of 3000 mesh with whisker by weight 85% and obtained.
- A kind of 2. high tenacity heat conductive flame-retarding plastics as claimed in claim 1, it is characterised in that：The HDPE is high flowing rank High density polyethylene (HDPE), wherein melt flows mass rate (MFR) is 7-9, unit：g/10min；Test condition：190℃/ 2.16kg, density 0.95-0.96g/cm3。
- A kind of 3. high tenacity heat conductive flame-retarding plastics as claimed in claim 1, it is characterised in that：The toughener for be ethene and The copolymer p OE of octene.
- A kind of 4. high tenacity heat conductive flame-retarding plastics as claimed in claim 1, it is characterised in that：The fire retardant is three oxidations two Antimony and bromide fire retardant are with 1：3 ratio compounding.
- A kind of 5. high tenacity heat conductive flame-retarding plastics as claimed in claim 1, it is characterised in that：The antioxidant be four [3- (3, 5- di-tert-butyl-hydroxy phenyls) propionic acid] pentaerythritol ester primary antioxidant and phosphorous acid three (2,4- 6- di-tert-butyl phenyl ester) it is auxiliary anti- Two kinds of oxygen agent presses 1:1 compounding.
- A kind of 6. high tenacity heat conductive flame-retarding plastics as claimed in claim 1, it is characterised in that：The dispersant is N, N'- second Support stearic bicine diester amine dispersant.
- A kind of 7. high tenacity heat conductive flame-retarding plastics as claimed in claim 1, it is characterised in that：The coupling agent is organic complex One or more in thing, silanes, titanate ester and aluminate coupling agent.
- 8. a kind of preparation method of high tenacity heat conductive flame-retarding plastics as claimed in claim 1, it is characterised in that including following step Suddenly：(1) corresponding each component raw material are weighed by above-mentioned percentage by weight；(2) by each component raw material weighed in step (1) in high-speed mixer and mixing 6-10 minutes；(3) mixing material being well mixed in step (2) is put into the loading hopper of double screw extruder, through melting extrusion, made Grain；Wherein 160-175 DEG C of the area's temperature of double screw extruder one, two 165-180 DEG C of area's temperature, three 170-190 DEG C of area's temperature, 4th area 170-190 DEG C of temperature, 180-200 DEG C of head, 2~3min of residence time, pressure 12-18MPa, 130-150 turns of screw speed/ Minute.
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| CN105694186A (en) * | 2016-04-22 | 2016-06-22 | 杭州富阳飞博科技有限公司 | Flame-retardant heat-conducting plastic cement and application thereof |
| CN105957735A (en) * | 2016-05-11 | 2016-09-21 | 杭州日月电子有限公司 | Fast-connection high-flexibility waterproof and fireproof safety switch |
| CN105837911B (en) * | 2016-05-27 | 2018-04-03 | 国网河南社旗县供电公司 | A kind of insulating heat-conductive CABLE MATERIALS and preparation method thereof |
| CN109705434A (en) * | 2018-12-28 | 2019-05-03 | 郑州贝欧科儿童用品股份有限公司 | A kind of car duct and preparation method thereof |
| CN110092964A (en) * | 2019-03-27 | 2019-08-06 | 广州市白云区钟落潭家立美塑料制品厂 | A kind of preparation method of polyvinyl high thermal conductivity composite plastic |
| CN112143074A (en) * | 2020-09-15 | 2020-12-29 | 浙江大丰体育设备有限公司 | High-density polyethylene composition and preparation method thereof |
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| CN102311568A (en) * | 2011-04-27 | 2012-01-11 | 深圳市科聚新材料有限公司 | Heat-conducting high density polyethylene composite material and preparation method as well as application thereof |
| CN102850623A (en) * | 2012-08-21 | 2013-01-02 | 天津军星管业集团有限公司 | Whisker-reinforced polyethylene pipe used in coal mine and preparation method thereof |
| CN104017267A (en) * | 2014-06-13 | 2014-09-03 | 深圳市沃尔核材股份有限公司 | Heat-conducting wire cable electric-insulation material or sheath material |
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|---|---|---|---|---|
| CN102311568A (en) * | 2011-04-27 | 2012-01-11 | 深圳市科聚新材料有限公司 | Heat-conducting high density polyethylene composite material and preparation method as well as application thereof |
| CN102850623A (en) * | 2012-08-21 | 2013-01-02 | 天津军星管业集团有限公司 | Whisker-reinforced polyethylene pipe used in coal mine and preparation method thereof |
| CN104017267A (en) * | 2014-06-13 | 2014-09-03 | 深圳市沃尔核材股份有限公司 | Heat-conducting wire cable electric-insulation material or sheath material |
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