CN106928688A - A kind of modified polyphenyl ether material of low-dielectric loss high heat conduction and preparation method thereof - Google Patents
A kind of modified polyphenyl ether material of low-dielectric loss high heat conduction and preparation method thereof Download PDFInfo
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- CN106928688A CN106928688A CN201511018302.2A CN201511018302A CN106928688A CN 106928688 A CN106928688 A CN 106928688A CN 201511018302 A CN201511018302 A CN 201511018302A CN 106928688 A CN106928688 A CN 106928688A
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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
- C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
- C08L71/08—Polyethers derived from hydroxy compounds or from their metallic derivatives
- C08L71/10—Polyethers derived from hydroxy compounds or from their metallic derivatives from phenols
- C08L71/12—Polyphenylene oxides
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- C—CHEMISTRY; METALLURGY
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- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/04—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to rubbers
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- C—CHEMISTRY; METALLURGY
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Abstract
The present invention relates to a kind of modified polyphenyl ether material of low-dielectric loss high heat conduction and preparation method thereof, described polyphenyl ether material includes the component of following parts by weight：20~55 parts of polyphenylene oxide, 5~25 parts of polystyrene, 5~10 parts of toughener, 35~65 parts of filler, 1~3 part of lubricant, 0.2~0.5 part of antioxidant；Above-mentioned polyphenyl ether material is prepared by the following method and forms：(1) filler and lubricant are weighed, and the heat filling in filler and lubricant premixing is obtained premixing heat filling；(2) polyphenylene oxide, polystyrene, toughener, antioxidant are weighed again, is mixed together uniformly with premix heat filling, obtain compound；(3) in adding mixture into screw extruder, and from side spout low dielectric filler is added simultaneously, melting extrusion tie rod pelletizing obtains final product purpose product.Compared with prior art, the present invention has the advantages that the high and low dielectric loss of good processability, heat conductivility.
Description
Technical field
The present invention relates to a kind of polyphenyl ether material and preparation method thereof, more particularly, to a kind of low-dielectric loss high heat conduction
Modified polyphenyl ether material and preparation method thereof.
Background technology
With continuing to develop for industrial production and science and technology, requirement of the people to Heat Conduction Material combination property is increasingly
Height, traditional metal material cannot meet the use requirement of some special occasions.Heat as electronic equipment is produced is rapid
Accumulation and increase, can cause device cisco unity malfunction, therefore radiating has turned into the key factor for influenceing its life-span in time.So anxious
High reliability, the heat-conducting insulation material of the excellent combination property of high-cooling property need to be developed and replace traditional material.Heat-conducting polymer material
Material especially heat-conducting plastic due to lightweight, resistant to chemical etching, easy processing shaping, excellent electrical insulation capability, mechanics and resist it is tired
The features such as labor function admirable, increasingly it is valued by people, is increasingly becoming the new role in heat conduction field, it is international and domestic in recent years
The focus of research and development.
Polyphenylene oxide has good electric property, is the minimum engineering plastics dielectric loss factor, and by frequency and temperature
The influence of degree is smaller.In addition, polyphenylene oxide has good heat resistance, dimensional stability and the low superiority of water absorption rate
Energy.
Chinese patent 201110435098.X discloses a kind of low-density PPO/PS blend alloy material, by
Component comprising following weight portion is made：Polyphenylene oxide 25-55 parts, polystyrene 15-42 parts, glass microballoon 15-30 parts, toughener
5-15 parts, lubricant 0.2-0.7 parts, antioxidant 0.2-0.5 parts.The patent due to own material heat conductivility in itself relatively
Differ from, and do not carry out corresponding heat conduction and be modified, so as to cause product to meet the electrical communications components for high heat conduction requirement.
The content of the invention
The purpose of the present invention is exactly that to provide a kind of low-dielectric loss for the defect for overcoming above-mentioned prior art to exist high
Modified polyphenyl ether material of heat conduction and preparation method thereof.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of modified polyphenyl ether material of low-dielectric loss high heat conduction, including following parts by weight component：
Described polystyrene is high impact polystyrene.
Described toughener is selected from block copolymer (SBS), the hydrogenated styrene/butadiene/benzene of styrene and butadiene
Ethylene block copolymer (SEBS) or maleic anhydride graft phenylethene-ethylene-butadiene-styrene block copolymer elastomer
(SEBS-g-MAH) one or more in.
Described filler includes in mass ratio 1:(4~9) the low dielectric filler and heat filling of addition, wherein, it is described
Low dielectric filler is hollow glass micropearl, and described heat filling is selected from the one kind in aluminium nitride, boron nitride or alundum (Al2O3)
Or it is several.
Described lubricant be selected from OP waxes, silicone, PE waxes, silicone oil or pentaerythritol stearate (PETS) in one kind or
It is several.
Described antioxidant is selected from four [β-(3,5- di-tert-butyl-hydroxy phenyls) propionic ester] pentaerythritol ester (antioxygens
Agent 1010), β-positive octadecanol ester (antioxidant 1076) of (3,5- di-tert-butyl-hydroxy phenyls) propionic acid or the three [uncles of 2,4- bis-
Butyl phenyl] one or more in phosphite ester (irgasfos 168).
A kind of preparation method of the modified polyphenyl ether material of low-dielectric loss high heat conduction, comprises the following steps：
(1) it is 1 by the mass ratio of low dielectric filler and heat filling:(4~9) weigh 35~65 parts of filler, and lubricant 1~
3 parts, heat filling is mixed with lubricant stirring, obtain pre-processing heat filling；
(2) 20~55 parts of polyphenylene oxide, 5~25 parts of polystyrene, 5~10 parts of toughener and 0.2~0.5 part of antioxygen are weighed again
Agent, the pretreated filler obtained with step (1) is mixed together uniformly, obtains compound；
(3) compound for obtaining step (2) is added in screw extruder, and simultaneously by low dielectric filler from side spout
Add in screw extruder, melting extrusion tie rod pelletizing obtains purpose product.
Heat filling is uniform in high-speed mixer and mixing with lubricant in step (1), and the process conditions for stirring mixing are：
Stirred 5~20 minutes with 800~1000rpm rotating speeds at 100~130 DEG C.
The process conditions of mixing are in step (2)：In the high mixer of 30~60 DEG C of temperature, with 800~1000rpm rotating speeds
It is mixed into 3~10min.
Extrusion temperature in step (3) in screw extruder is 240~290 DEG C, and screw speed is 200~300rpm.
Compared with prior art, the present invention has advantages below：
(1) present invention is base-material by using the polyphenylene oxide with good dielectric properties and heat resistance, mixes polyphenyl second
Alkene increases material flowability, and the heat conductivility of material is improved by being charged with filler, last obtained polyphenyl ether material
With prominent low-dielectric loss and high thermal conductivity.
(2) hollow glass micropearl that the present invention is added in preparation process has very low dielectric loss, and self-lubrication
Better performances, can be very good to be distributed in system such that it is able to effectively reduce the dielectric loss factor of material, additionally, this
Invention selection side feeding addition hollow glass micropearl, also for its percentage of damage is reduced, so as to ensure hollow glass as far as possible
The integrality of microballon is reducing dielectric loss；The heat fillings such as the aluminium nitride (AlN) and boron nitride (BN) of addition simultaneously then can be big
The big heat conductivility for improving material, by by heat filling in advance and mix lubricant, at a temperature of higher than lubricant fusing point
Pretreatment is lubricated, lubricant can be made to be evenly coated at the surface of heat filling well, so as to reduce heat filling table
The frictional force in face, so improve occupied in polyphenyl ether material significant proportion heat filling and other raw materials or itself between
The uneven problem of mixing, also solve in process because it is excessive in heat filling mantle friction, reunite etc. caused by under
Expect the phenomenons such as difficult and network blocking plate, greatly reduce the difficulty of processing of polyphenyl ether material, reduce screw rod abrasion, because of mixing for each raw material
Close and evenly also cause that the heat conductivility of last obtained polyphenyl ether material is further improved.
Specific embodiment
With reference to specific embodiment, the present invention is described in detail.
In following each embodiments, unless otherwise specified, represent that the screw speed in screw extruder is 220rpm, at a high speed
Stirring then represents speed of agitator in the range of 800~1000rpm.
Embodiment 1
(1) each component raw material is weighed by following weight portion：55 parts of polyphenylene oxide, 5 parts of high impact polystyrene is SEBS5 parts, empty
5 parts of heart glass microballoon, 30 parts of boron nitride, 1 part of OP waxes, 0.1 part of antioxidant 1010,0.2 part of irgasfos 168.
(2) first 100 DEG C of high mixers, high-speed stirred 10min are added to obtain pre-processing boron nitride, so boron nitride and OP waxes
Remaining raw material in addition to hollow glass micropearl and pretreatment boron nitride are mixed at a high speed through high mixer afterwards, its high mixer rotating speed is
800-1000rpm, mixing temperature is 40 DEG C, mixes 10min；Mixed material is added into double screw extruder, and is fed from side simultaneously
Material mouth adds hollow glass micropearl, controls the temperature in each area at 260-290 DEG C, and tie rod pelletizing is that can obtain product.
Embodiment 2
(1) each component raw material is weighed by following weight portion：25 parts of polyphenylene oxide, 25 parts of high impact polystyrene, 5 parts of SBS,
5 parts of hollow glass micropearl, 40 parts of aluminium nitride, 3 parts of PE waxes, 0.1 part of antioxidant 1010,0.1 part of irgasfos 168；
(2) first 130 DEG C of high mixers, high-speed stirred 5min are added to obtain pre-processing aluminium nitride, then aluminium nitride and PE waxes
Remaining raw material in addition to hollow glass micropearl and pretreatment aluminium nitride are mixed at a high speed through high mixer, controls the high mixer rotating speed to be
800-1000rpm, mixing temperature is 60 DEG C, mixes 3min；By mixed material through double screw extruder, and simultaneously from side spout
Hollow glass micropearl is added, controls the temperature in each area at 240-275 DEG C, extruder tie rod pelletizing is that can obtain product.
Embodiment 3
(1) each component raw material is weighed by following weight portion：20 parts of polyphenylene oxide, 14 parts of high impact polystyrene, SEBS-g-
10 parts of MAH, 6 parts of hollow glass micropearl, 50 parts of aluminum oxide, 2 parts of silicone, 0.2 part of antioxidant 1010,0.3 part of irgasfos 168；
(2) first 120 DEG C of high mixers, high-speed stirred 15min are added to obtain pre-processing aluminum oxide, so in aluminum oxide and silicone
Remaining raw material in addition to hollow glass micropearl and pretreatment aluminum oxide are mixed at a high speed through high mixer afterwards, its high mixer rotating speed is
800-1000rpm, mixing temperature is 50 DEG C, mixes 6min；By mixed material through double screw extruder, and simultaneously from side spout
Hollow glass micropearl is added, controls the temperature in each area at 250-280 DEG C, tie rod pelletizing is that can obtain product.
Embodiment 4
(1) each component raw material is weighed by following weight portion：22 parts of polyphenylene oxide, 8 parts of high impact polystyrene, 8 parts of SBS, nitrogen
Change 50 parts of boron, 12 parts of hollow glass micropearl, 3 parts of silicone oil, 0.2 part of antioxidant 1076,0.2 part of irgasfos 168；
(2) first 100 DEG C of high mixers, high-speed stirred 20min are added to obtain pre-processing boron nitride, so boron nitride and silicone oil
Remaining raw material in addition to hollow glass micropearl and pretreatment boron nitride are mixed at a high speed through high mixer afterwards, its high mixer rotating speed is
800-1000rpm, mixing temperature is 40 DEG C, mixes 5min；By mixed material through double screw extruder, and simultaneously from side spout
Hollow glass micropearl is added, controls the temperature in each area at 260-280 DEG C, tie rod pelletizing is that can obtain product.
Embodiment 5
(1) each component raw material is weighed by following weight portion：30 parts of polyphenylene oxide, 12 parts of high impact polystyrene, 8 parts of SEBS,
35 parts of aluminium nitride, 15 parts of hollow glass micropearl, 2 parts of OP waxes, 0.1 part of antioxidant 1010,0.1 part of irgasfos 168；
(2) first 110 DEG C of high mixers, high-speed stirred 15min are added to obtain pre-processing aluminium nitride, so aluminium nitride and OP waxes
Remaining raw material in addition to hollow glass micropearl and pretreatment aluminium nitride are mixed at a high speed through high mixer afterwards, controls the high mixer rotating speed to be
800-1000rpm, mixing temperature is 40 DEG C, mixes 6min；By mixed material through double screw extruder, and simultaneously from side spout
Hollow glass micropearl is added, controls the temperature in each area at 260-280 DEG C, tie rod pelletizing is that can obtain product.
Embodiment 6
(1) each component raw material is weighed by following weight portion：20 parts of polyphenylene oxide, 10 parts of high impact polystyrene, 5 parts of SBS,
55 parts of aluminum oxide, 10 parts of hollow glass micropearl, 3 parts of PETS, 0.1 part of antioxidant 1010,0.2 part of irgasfos 168；
(2) first 100 DEG C of high mixers, high-speed stirred 10min are added to obtain pre-processing aluminum oxide, so in aluminum oxide and PETS
Afterwards by remaining raw material in addition to hollow glass micropearl and pretreatment aluminum oxide, mixed at a high speed through high mixer, its high mixer rotating speed is
800-1000rpm, mixing temperature is 60 DEG C, mixes 5min；Mixed material is added into single screw extrusion machine, and simultaneously from side feeding
Mouth adds hollow glass micropearl, controls the temperature in each area at 250-280 DEG C, and tie rod pelletizing is that can obtain product.
The performance test of product is as shown in table 1.
Table 1
Embodiment 7
(1) each component raw material is weighed by following weight portion：35 parts of polyphenylene oxide, 15 parts of high impact polystyrene, 6 parts of SBS,
45 parts of aluminum oxide, 5 parts of hollow glass micropearl, 1 part of PETS, 1 part of silicone oil, 0.1 part of antioxidant 1010,0.2 part of irgasfos 168；
(2) aluminum oxide, silicone oil and PETS are first added into 100 DEG C of high mixers, 10min is stirred under 800rpm rotating speeds, obtained
Pretreatment aluminum oxide, then by remaining raw material in addition to hollow glass micropearl and pretreatment aluminum oxide, mixes at a high speed through high mixer,
Its high mixer rotating speed is 900rpm, and mixing temperature is 60 DEG C, mixes 5min；Mixed material is added into single screw extrusion machine, and together
When add hollow glass micropearl from side spout, control the temperature in each area at 250-280 DEG C, screw speed is 200rpm, tie rod
Pelletizing is that can obtain product.
Embodiment 8
(1) each component raw material is weighed by following weight portion：35 parts of polyphenylene oxide, 15 parts of high impact polystyrene, 6 parts of SBS,
16 parts of aluminum oxide, 16 parts of boron nitride, 8 parts of hollow glass micropearl, 2 parts of PETS, 0.1 part of antioxidant 1010, irgasfos 168 0.2
Part；
(2) aluminum oxide, boron nitride and PETS are first added into 100 DEG C of high mixers, 10min is stirred under 1000rpm rotating speeds, obtained
It is high through high mixer then by remaining raw material in addition to hollow glass micropearl and pretreatment heat filling to pretreatment heat filling
Speed is mixed, and its high mixer rotating speed is 900rpm, and mixing temperature is 60 DEG C, mixes 5min；Mixed material is added into Single screw extrusion
Machine, and from side spout add hollow glass micropearl simultaneously, controls the temperature in each area at 250-280 DEG C, and screw speed is
300rpm, tie rod pelletizing is that can obtain product.
Embodiment 9
(1) each component raw material is weighed by following weight portion：35 parts of polyphenylene oxide, 15 parts of high impact polystyrene, 6 parts of SBS,
35 parts of aluminium nitride, 5 parts of hollow glass micropearl, 2 parts of PETS, 0.1 part of antioxidant 1010,0.2 part of irgasfos 168；
(2) aluminium nitride and PETS are first added into 100 DEG C of high mixers, 10min is stirred under 900rpm rotating speeds, pre-processed
Aluminium nitride, then by remaining raw material in addition to hollow glass micropearl and pretreatment aluminium nitride, mixes at a high speed through high mixer, and its height is mixed
Machine rotating speed is 900rpm, and mixing temperature is 60 DEG C, mixes 5min；Mixed material is added into single screw extrusion machine, and simultaneously from side
Spout adds hollow glass micropearl, controls the temperature in each area at 250-280 DEG C, and screw speed is 250rpm, and tie rod pelletizing is
Can obtain product.
Comparative example 1
(1) each component raw material is weighed by following weight portion：35 parts of polyphenylene oxide, 15 parts of high impact polystyrene, 6 parts of SBS,
35 parts of aluminium nitride, 5 parts of hollow glass micropearl, 2 parts of PETS, 0.1 part of antioxidant 1010,0.2 part of irgasfos 168；
(2) high mixer high speed is added to mix above-mentioned raw materials, its high mixer rotating speed is 900rpm, and mixing temperature is 60
DEG C, mix 5min；Mixed material is added into single screw extrusion machine, the temperature in each area is controlled at 250-280 DEG C, screw speed is
250rpm, tie rod pelletizing is that can obtain product.
To embodiment 7~9 and product obtained in comparative example 1 carries out performance detection, specific performance result is as shown in table 2 below.
Table 2
From the above results, the polyphenyl ether material for being prepared compared to conventional mixing method, using of the invention mixed
The heat conductivility and dielectric loss performance of the polyphenyl ether material obtained by conjunction method and hybrid technique are obviously improved.
The above-mentioned description to embodiment is to be understood that and use invention for ease of those skilled in the art.
Person skilled in the art obviously can easily make various modifications to these embodiments, and described herein general
Principle is applied in other embodiment without by performing creative labour.Therefore, the invention is not restricted to above-described embodiment, ability
Field technique personnel announcement of the invention, does not depart from improvement that scope made and modification all should be of the invention
Within protection domain.
Claims (10)
1. a kind of modified polyphenyl ether material of low-dielectric loss high heat conduction, it is characterised in that the component including following parts by weight：
2. the modified polyphenyl ether material of a kind of low-dielectric loss high heat conduction according to claim 1, it is characterised in that described
Polystyrene be high impact polystyrene.
3. the modified polyphenyl ether material of a kind of low-dielectric loss high heat conduction according to claim 1, it is characterised in that described
Toughener be selected from block copolymer, hydrogenated styrene/Butadiene/Styrene block copolymer or the horse of styrene and butadiene
One or more in maleic anhydride grafted styrene ethylene butadiene-styrene elastomer.
4. the modified polyphenyl ether material of a kind of low-dielectric loss high heat conduction according to claim 1, it is characterised in that described
Filler include in mass ratio 1:(4~9) the low dielectric filler and heat filling of addition, wherein, described low dielectric filler is
Hollow glass micropearl, described heat filling is selected from one or more in aluminium nitride, boron nitride or alundum (Al2O3).
5. the modified polyphenyl ether material of a kind of low-dielectric loss high heat conduction according to claim 1, it is characterised in that described
Lubricant be selected from OP waxes, silicone, PE waxes, silicone oil or pentaerythritol stearate in one or more.
6. the modified polyphenyl ether material of a kind of low-dielectric loss high heat conduction according to claim 1, it is characterised in that described
Antioxidant be selected from four [β-(3,5- di-tert-butyl-hydroxy phenyls) propionic ester] pentaerythritol esters, β-(3,5- di-t-butyls-
4- hydroxy phenyls) one or more in the positive octadecanol ester of propionic acid or three [2,4- di-tert-butyl-phenyls] phosphite esters.
7. a kind of preparation method of the modified polyphenyl ether material of low-dielectric loss high heat conduction as claimed in claim 4, its feature
It is to comprise the following steps：
(1) it is 1 by the mass ratio of low dielectric filler and heat filling:(4~9) weigh 35~65 parts of filler, 1~3 part of lubricant,
Heat filling is mixed with lubricant stirring, obtains pre-processing heat filling；
(2) 20~55 parts of polyphenylene oxide, 5~25 parts of polystyrene, 5~10 parts of toughener and 0.2~0.5 part of antioxidant are weighed again,
The pretreated filler obtained with step (1) is mixed together uniformly, obtains compound；
(3) compound for obtaining step (2) is added in screw extruder, and simultaneously by low dielectric filler from side spout addition
In screw extruder, melting extrusion tie rod pelletizing obtains purpose product.
8. the preparation method of the modified polyphenyl ether material of a kind of low-dielectric loss high heat conduction according to claim 7, it is special
Levy and be, heat filling is uniform in high-speed mixer and mixing with lubricant in step (1), and the process conditions for stirring mixing are：
Stirred 5~20 minutes with 800~1000rpm rotating speeds at 100~130 DEG C.
9. the preparation method of the modified polyphenyl ether material of a kind of low-dielectric loss high heat conduction according to claim 7, it is special
Levy and be, the process conditions of mixing are in step (2)：In the high mixer of 30~60 DEG C of temperature, with 800~1000rpm rotating speeds
It is mixed into 3~10min.
10. the preparation method of the modified polyphenyl ether material of a kind of low-dielectric loss high heat conduction according to claim 7, it is special
Levy and be, the extrusion temperature in step (3) in screw extruder is 240~290 DEG C, screw speed is 200~300rpm.
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| CN107513261A (en) * | 2017-08-11 | 2017-12-26 | 芜湖凌梦电子商务有限公司 | A kind of Noryl aeroge and preparation method thereof |
| CN107513261B (en) * | 2017-08-11 | 2020-09-04 | 深圳市吉塑工程塑料有限公司 | Modified polyphenyl ether aerogel and preparation method thereof |
| CN110684338A (en) * | 2018-07-06 | 2020-01-14 | 沙特基础工业全球技术公司 | Thermoplastic composition with good dielectric and ductility properties |
| CN110684338B (en) * | 2018-07-06 | 2020-12-25 | 沙特基础工业全球技术公司 | Thermoplastic composition with good dielectric and ductility properties |
| CN114521206A (en) * | 2019-09-23 | 2022-05-20 | 阿莫绿色技术有限公司 | Radio frequency heat dissipation plastic and repeater box body realized by same |
| CN113150528A (en) * | 2021-01-18 | 2021-07-23 | 浙江华电器材检测研究所有限公司 | High-thermal-conductivity composite material for insulating puncture wire clamp shell and preparation method thereof |
| CN113583310A (en) * | 2021-07-29 | 2021-11-02 | 无锡睿龙新材料科技有限公司 | High-thermal-conductivity hydrocarbon composition, high-frequency copper-clad plate prepared from same and preparation method of high-frequency copper-clad plate |
| CN113930003A (en) * | 2021-12-03 | 2022-01-14 | 海信视像科技股份有限公司 | MPPO material, mineral filling master batch and preparation method thereof |
| CN113930003B (en) * | 2021-12-03 | 2023-09-08 | 海信视像科技股份有限公司 | MPPO material, mineral filled master batch and preparation method thereof |
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