CN108165010A - Low dielectric polyphenyl thioether composite material of a kind of high heat conduction and preparation method thereof - Google Patents
Low dielectric polyphenyl thioether composite material of a kind of high heat conduction and preparation method thereof Download PDFInfo
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- CN108165010A CN108165010A CN201611120414.3A CN201611120414A CN108165010A CN 108165010 A CN108165010 A CN 108165010A CN 201611120414 A CN201611120414 A CN 201611120414A CN 108165010 A CN108165010 A CN 108165010A
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L81/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen or carbon only; Compositions of polysulfones; Compositions of derivatives of such polymers
- C08L81/02—Polythioethers; Polythioether-ethers
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- 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
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- 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
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- C08L2205/08—Polymer mixtures characterised by other features containing additives to improve the compatibility between two polymers
Abstract
The present invention provides low dielectric polyphenyl thioether composite materials of a kind of high heat conduction and preparation method thereof, and composite material includes：100 parts of polyphenylene sulfides, 10-40 parts of glass fibres, 30-60 parts of boron nitride, 5-15 parts of compatilizers, 0.8-3.0 parts of coupling agents, 1.0-5.0 parts of dispersants, 0.4-1.2 parts of antioxidant；Method includes：The first mixture is obtained after boron nitride and coupling agent are mixed, dispersant is added in the first mixture, the second mixture is obtained after mixing；It is added in after polyphenylene sulfide, compatilizer and antioxidant are mixed from the main spout of screw extruder, second mixture is added in from the side spout of screw extruder, glass fibre is added in mouth from the glass fibre of screw extruder to add in, through screw extruder extruding pelletization, the polyphenyl thioether composite material in pelletized form is obtained；The polyphenyl thioether composite material of the present invention has the advantages that thermal conductivity factor height and dielectric loss are low, suitable for the application in electronic communication field.
Description
Technical field
The invention belongs to technical field of polymer materials, are related to a kind of modified polyphenyl thioether composite material and its preparation side
Method.
Background technology
Polyphenylene sulfide is due to having the characteristics that high temperature resistant, fire-retardant, mechanical performance is high, mobility is excellent, dimensionally stable, very
It is suitble to electronic communication product to heatproof, fire-retardant, precise injection molding requirement, therefore is widely used in electronic communication industry；However, polyphenyl
The heat conductivility of thioether in itself is bad, needs to be modified it.Current method of modifying is mostly using metallic fiber, oxidation
The heat fillings such as aluminium, silicon carbide carry out modified polyphenyl thioether, although its heat conductivility can be improved, but increase to some extent
The dielectric loss of final composite material and influence its wave, so as to be unfavorable for the transmission of communication signal, which has limited its
Communication field is further applied.
Invention content
In view of the deficiencies of the prior art, main purpose is to provide a kind of modified polyphenyl thioether composite material to the present invention, same
When with relatively low dielectric loss, higher thermal conductivity factor and preferable mechanical property, especially suitable in the field of communications should
With.
Second object of the present invention is to provide a kind of preparation method of above-mentioned modified polyphenyl thioether composite material.
In order to achieve the above objectives, solution of the invention is：
A kind of polyphenyl thioether composite material, raw materials for production include the component with following parts by weight：
Wherein, the melt index of above-mentioned polyphenylene sulfide is 500-1200g/10min, can be preferably 600-
1000g/10min。
Above-mentioned glass fibre be dielectric glass fibre, dielectric constant≤5.0, dielectric loss≤0.005.Above-mentioned
Boron nitride can be spherical boron nitride, purity ＞ 98%.The grain size of the spherical boron nitride can be 10-150 μm, can also be excellent
It is selected as 30-100 μm.
Above-mentioned boron nitride may be boron nitride fiber, purity ＞ 98%.The diameter of the boron nitride fiber can be
4‐9μm。
Above-mentioned compatilizer is hydrogenated styrene-butadiene block copolymer (SEBS), maleic anhydride is grafted hydrogenation of benzene second
Alkene-butadiene block copolymer (SEBS-g-MAH), glycidyl methacrylate graft hydrogenated styrene-butadiene block
Copolymer (SEBS-g-GMA), maleic anhydride grafted propylene acid-butadiene-styrene (MBS-g-MAH) or ethylene-metering system
One or more of acid-acrylic ternary copolymer.
Above-mentioned coupling agent is selected from vinyltriethoxysilane (KH-151), gamma-aminopropyl-triethoxy-silane (KH-
550), γ-glycidyl ether oxygen propyl trimethoxy silicane (KH-560), γ-glycidoxypropyltrietandysilane andysilane
(KH-561) or one or more of γ-methacryloxypropyl trimethoxy silane (KH570).
Above-mentioned dispersant is selected from pentaerythritol stearate (PETS), ethylene acrylic acid co polymer, ethylene stearic bicine diester
One or more of amine (EBS), PE waxes or silicone powder.
Above-mentioned antioxidant is selected from four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester (antioxidant
1010), 1,3,5- tri- (4- tertiary butyl -3- hydroxyls -2,6- dimethyl benzyl) -1,3,5-triazines -2,4,6- (1H, 3H, 5H)-three
Ketone (antioxidant 1790), three [2,4- di-tert-butyl-phenyl] phosphite esters (irgasfos 168), bis- (2,4-DTBP) seasons
Penta tetrol diphosphites (antioxidant 626) or bis- (2,4- dicumylphenyl) pentaerythritol diphosphites (antioxidant
One or more of S9228).
A kind of preparation method of polyphenyl thioether composite material, includes the following steps：
(1), 30-60 parts of boron nitride and 0.8-3.0 parts of coupling agents are mixed, obtains the first mixture；
(2), 1.0-5.0 parts of dispersants are added in the first mixture, the second mixture is obtained after mixing；
(3), from Screw Extrusion after 100 parts of polyphenylene sulfides, 5-15 parts of compatilizers and 0.4-1.2 parts of antioxidant being mixed
The main spout of machine adds in, and the second mixture is added in from the side spout of screw extruder, by 10-40 parts of glass fibres from spiral shell
The glass fibre of bar extruder adds in mouth and adds in, and through screw extruder extruding pelletization, obtains the modified polyphenyl sulphur in pelletized form
Ether composite material.
Wherein, the mixing in step (1) is carried out in high-speed mixer, and the rotating speed of high-speed mixer is 200-
500rpm, the temperature of mixing is 30-60 DEG C, and the time of mixing is 3-6min.
Mixing in step (2) is carried out in high-speed mixer, and the rotating speed of high-speed mixer is 600-1000rpm, is mixed
The temperature of conjunction is 70-120 DEG C, and the time of mixing is 5-15min.
Mixing in step (3) is carried out in high-speed mixer, and the rotating speed of high-speed mixer is 100-400rpm, is mixed
Temperature for 30-60 DEG C, the time of mixing is 1-3min.
Screw extruder is double screw extruder in step (2), and the temperature in each area is 280-320 DEG C.
By adopting the above scheme, the beneficial effects of the invention are as follows：
Firstth, the present invention using spherical boron nitride or boron nitride fiber come modified polyphenyl thioether because boron nitride has pole
High heat conductivility, while the characteristics of dielectric loss is low is had both again, it can not only assign polyphenylene sulfide good thermal conductivity, also not
Can increase its dielectric loss, composite material that can be final its can keep excellent low-dielectric.
Secondth, the present invention is also added to glass fibre in material system, in the heat conductivility for not influencing composite material
Mechanical property with composite material is improved while low-dielectric energy, disclosure satisfy that the application in electronic communication industry.
Specific embodiment
The present invention provides a kind of modified polyphenyl thioether composite materials and preparation method thereof.
<Modified polyphenyl thioether composite material>
A kind of modified polyphenyl thioether composite material, raw materials for production include the component with following parts by weight：
Wherein, the melt index of above-mentioned polyphenylene sulfide (PPS resin) can be 500-1200g/10min, also may be used
Think 600-1000g/10min, can also be 700-900g/10min, can also be 800-850g/10min.Testing standard
ASTM D1238,316 DEG C of test condition, 5Kg.The PPS of high fusion index is more preferable to the wellability of filler so that PPS is with filling out
Interface cohesion between material is more preferable, and mechanical property is more preferable, and heat-conducting effect is more preferable.And melt index it is too high PPS molecular weight it is too small, power
Learning performance can be poor, therefore considers and select melt index as 500-1200g/10min.
Above-mentioned glass fibre be dielectric glass fibre (D glass fibre), dielectric constant≤5.0, dielectric loss≤
0.005。
The purity of above-mentioned boron nitride>98%.
Above-mentioned boron nitride can be spherical boron nitride, and grain size is 10-150 μm, preferably 30-100 μm.Wherein nitrogenize
The grain size of boron refers to the distribution of boron nitride grain size, and the boron nitride accumulation of different-grain diameter is more close, can preferably be formed and led
The passage of heat.After common boron nitride is added in resin system, the viscosity of material steeply rises, resin to the effect of impregnation of boron nitride not
Good, processing and manufacturing is difficult big to equipment damage, while later stage injection molding is also more difficult, and the present invention is using spherical boron nitride, ball
Shape boron nitride is easily flowed due to its spherical structure, can effectively be reduced the viscosity during processing and manufacturing, be conducive to resin base
Infiltration of the body to boron nitride, later stage injection molding mobility are also more preferable.
Above-mentioned boron nitride may be boron nitride fiber, a diameter of 4-9 μm.Boron nitride fiber is threadiness, is more easy to
In formation passage of heat, while also have both certain enhancing effect.
Above-mentioned compatilizer is hydrogenated styrene-butadiene block copolymer (SEBS), maleic anhydride is grafted hydrogenation of benzene second
Alkene-butadiene block copolymer (SEBS-g-MAH), glycidyl methacrylate graft hydrogenated styrene-butadiene block
Copolymer (SEBS-g-GMA), maleic anhydride grafted propylene acid-butadiene-styrene (MBS-g-MAH) or ethylene-metering system
One or more of acid-acrylic ternary copolymer.
Above-mentioned coupling agent is selected from vinyltriethoxysilane (KH-151), gamma-aminopropyl-triethoxy-silane (KH-
550), γ-glycidyl ether oxygen propyl trimethoxy silicane (KH-560), γ-glycidoxypropyltrietandysilane andysilane
(KH-561) or one or more of γ-methacryloxypropyl trimethoxy silane (KH570).
Above-mentioned dispersant is selected from pentaerythritol stearate (PETS), ethylene acrylic acid co polymer (Ethylene
Acrylic Acid, EAA), ethylene bis stearamide (EBS), one or more of PE waxes or silicone powder.
Above-mentioned antioxidant is selected from four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester (antioxidant
1010), 1,3,5- tri- (4- tertiary butyl -3- hydroxyls -2,6- dimethyl benzyl) -1,3,5-triazines -2,4,6- (1H, 3H, 5H)-three
Ketone (antioxidant 1790), three [2,4- di-tert-butyl-phenyl] phosphite esters (irgasfos 168), bis- (2,4-DTBP) seasons
Penta tetrol diphosphites (antioxidant 626) or bis- (2,4- dicumylphenyl) pentaerythritol diphosphites (antioxidant
One or more of S9228).
<The preparation method of modified polyphenyl thioether composite material>
A kind of preparation method of modified polyphenyl thioether composite material, includes the following steps：
(1), 30-60 parts of boron nitride and 0.8-3.0 parts of coupling agents are mixed, obtains the first mixture；
(2), 1.0-5.0 parts of dispersants are added in the first mixture, the second mixture is obtained after mixing；
(3), from Screw Extrusion after 100 parts of polyphenylene sulfides, 5-15 parts of compatilizers and 0.4-1.2 parts of antioxidant being mixed
The main spout of machine adds in, and the second mixture is added in from the side spout of screw extruder, by 10-40 parts of glass fibres from spiral shell
The glass fibre of bar extruder adds in mouth and adds in, and through screw extruder extruding pelletization, obtains the modified polyphenyl sulphur in pelletized form
Ether composite material.Wherein main spout is located at the firstth area of machine barrel, and glass fiber opening is located at machine barrel third area, and side spout is located at machine barrel
4th area.
Wherein, the mixing in step (1) is carried out in high-speed mixer, and the rotating speed of high-speed mixer is 200-
500rpm, the temperature of mixing is 30-60 DEG C, and the time of mixing is 3-6min.The effect of mixing is to make surface coupling to boron nitride
Processing generates one layer of coupling agent layer in nitridation boron surface, improves the interface interaction of material and resin.
Mixing in step (2) is carried out in high-speed mixer, and the rotating speed of high-speed mixer is 600-1000rpm, is mixed
The temperature of conjunction is 70-120 DEG C, and the time of mixing is 5-15min.Higher temperature, higher rotating speed are conducive to the molten of dispersant
Melt, forming clad in nitridation boron surface plays better dispersion effect, therefore the rotating speed of this step high mixer, temperature and mixed
The conjunction time is higher than step (1).
Mixing in step (3) is carried out in high-speed mixer, and the rotating speed of high-speed mixer is 100-400rpm, is mixed
Temperature for 30-60 DEG C, the time of mixing is 1-3min.This step is in order to which material is uniformly mixed, while prevents material temperature mistake
Height causes material to be sticked together to be unfavorable for the stability of blanking, therefore uses relatively low rotating speed, temperature and mixing time.
Screw extruder is double screw extruder in step (2), and the temperature in each area is all fallen in the range of 280-320 DEG C.
Each area's temperature gradually rises, and promotes resin melting, reduces system viscosity, promotes infiltration of the resin to boron nitride, is formed good
Interface, while temperature is suitably reduced at die head, pressure is formed, makes material more closely knit.Wherein, first area's temperature is 280-
290 DEG C, second area's temperature be 285-295 DEG C, third area temperature be 290-300 DEG C, the 4th area's temperature be 300-310 DEG C, the 5th
Area's temperature is 310-320 DEG C, and the 6th area's temperature is 300-310 DEG C.
Below in conjunction with illustrated embodiment, the present invention is further illustrated.
Embodiment 1：
A kind of modified polyphenyl thioether composite material is present embodiments provided, raw materials for production include following components：
Wherein, the melt index of above-mentioned polyphenylene sulfide is 500g/10min.
<The preparation method of modified polyphenyl thioether composite material>
The present embodiment additionally provides a kind of preparation method of modified polyphenyl thioether composite material, includes the following steps：
(1), 60 parts of boron nitride (spherical boron nitride) and 3.0 parts of coupling agents (KH-570) are added in high-speed mixer, with
The rotating speed of 500rpm mixes 6min at a temperature of 60 DEG C, obtains the first mixture；
(2), 5.0 parts of dispersants (PETS) are added in the first mixture in step (1), continued with 1000rpm's
Rotating speed mixes 15min at a temperature of 120 DEG C, obtains the second mixture；
(3), by 100 parts of polyphenylene sulfides, 15 parts of compatilizers (SEBS-g-MAH) and 1.2 parts of antioxidant (1010/168
=1/2) 3min is mixed at a temperature of 60 DEG C with the rotating speed of 400rpm, is then added in from the main spout of screw extruder, it will
Second mixture is added in from the side spout of screw extruder, and 10 parts of glass fibres are added in from the glass fibre of screw extruder
Mouth adds in, and through screw extruder extruding pelletization, obtains the modified polyphenyl thioether composite material in pelletized form.
Wherein, in step (3), each area's temperature for controlling screw extruder is：The temperature of main spout and side spout
For 280 DEG C, first area's temperature be 290 DEG C, second area's temperature is 290 DEG C, third area temperature is 300 DEG C, the 4th area's temperature is 310
DEG C, the die head temperature of screw extruder be 300 DEG C, engine speed 50Hz.
Embodiment 2：
A kind of modified polyphenyl thioether composite material is present embodiments provided, raw materials for production include following components：
Wherein, the melt index of above-mentioned polyphenylene sulfide is 900g/10min.
<The preparation method of modified polyphenyl thioether composite material>
The present embodiment additionally provides a kind of preparation method of modified polyphenyl thioether composite material, includes the following steps：
(1), 30 parts of boron nitride (boron nitride fiber) and 0.8 part of coupling agent (KH-550) are added in high-speed mixer, with
The rotating speed of 200rpm mixes 3min at a temperature of 30 DEG C, obtains the first mixture；
(2), 1.0 parts of dispersants (EBS) are added in the first mixture in step (1), continue to turn with 600rpm
Speed mixes 5min at a temperature of 70 DEG C, obtains the second mixture；
(3), by 100 parts of polyphenylene sulfides, 5 parts of compatilizers (SEBS) and 0.4 part of antioxidant (1790/168=1/2) with
The rotating speed of 100rpm mixes 1min at a temperature of 30 DEG C, is then added in from the main spout of screw extruder, by the second mixing
Object is added in from the side spout of screw extruder, and 40 parts of glass fibres are added in mouth from the glass fibre of screw extruder adds in,
Through screw extruder extruding pelletization, the modified polyphenyl thioether composite material in pelletized form is obtained.
Wherein, in step (3), each area's temperature for controlling screw extruder is：The temperature of main spout and side spout
For 285 DEG C, first area's temperature be 290 DEG C, second area's temperature is 295 DEG C, third area temperature is 305 DEG C, the 4th area's temperature is 315
DEG C, the die head temperature of screw extruder be 310 DEG C, engine speed 50Hz.
Embodiment 3：
A kind of modified polyphenyl thioether composite material is present embodiments provided, raw materials for production include following components：
Wherein, the melt index of above-mentioned polyphenylene sulfide is 1200g/10min.
<The preparation method of modified polyphenyl thioether composite material>
The present embodiment additionally provides a kind of preparation method of modified polyphenyl thioether composite material, includes the following steps：
(1), 45 parts of boron nitride (boron nitride fiber) and 2 parts of coupling agents (KH-560) are added in high-speed mixer, with
The rotating speed of 200rpm mixes 3min at a temperature of 30 DEG C, obtains the first mixture；
(2), 3.0 parts of dispersants (silicone powder) are added in the first mixture in step (1), continued with 600rpm's
Rotating speed mixes 5min at a temperature of 70 DEG C, obtains the second mixture；
(3), by 100 parts of polyphenylene sulfides, 10 parts of compatilizers (SEBS-g-GMA) and 0.8 part of antioxidant (1010/
S9228=1/2 1min) is mixed at a temperature of 30 DEG C with the rotating speed of 100rpm to add in from the main spout of screw extruder, it will
Second mixture is added in from the side spout of screw extruder, and 25 parts of glass fibres are added in from the glass fibre of screw extruder
Mouth adds in, and through screw extruder extruding pelletization, obtains the modified polyphenyl thioether composite material in pelletized form.
Wherein, in step (3), each area's temperature for controlling screw extruder is：The temperature of main spout and side spout
For 290 DEG C, first area's temperature be 295 DEG C, second area's temperature is 295 DEG C, third area temperature is 300 DEG C, the 4th area's temperature is 310
DEG C, the die head temperature of screw extruder be 305 DEG C, engine speed 50Hz.
Embodiment 4：
A kind of modified polyphenyl thioether composite material is present embodiments provided, raw materials for production include following components：
Wherein, the melt index of above-mentioned polyphenylene sulfide is 1000g/10min.
<The preparation method of modified polyphenyl thioether composite material>
The present embodiment additionally provides a kind of preparation method of modified polyphenyl thioether composite material, includes the following steps：
(1), 55 parts of boron nitride (spherical boron nitride) and 2.5 parts of coupling agents (KH-561) are added in high-speed mixer, with
The rotating speed of 200rpm mixes 3min at a temperature of 30 DEG C, obtains the first mixture；
(2), 4.0 parts of dispersants (PE waxes) are added in the first mixture in step (1), continue to turn with 600rpm
Speed mixes 5min at a temperature of 70 DEG C, obtains the second mixture；
(3), by 100 parts of polyphenylene sulfides, 12 parts of compatilizers (MBS-g-MAH) and 1.0 parts of antioxidant (1790/S9228
=1/2) 1min is mixed at a temperature of 30 DEG C with the rotating speed of 100rpm, is then added in from the main spout of screw extruder, it will
Second mixture is added in from the side spout of screw extruder, and 18 parts of glass fibres are added in from the glass fibre of screw extruder
Mouth adds in, and through screw extruder extruding pelletization, obtains the modified polyphenyl thioether composite material in pelletized form.
Wherein, in step (3), each area's temperature for controlling screw extruder is：The temperature of main spout and side spout
For 280 DEG C, first area's temperature be 290 DEG C, second area's temperature is 295 DEG C, third area temperature is 305 DEG C, the 4th area's temperature is 315
DEG C, the die head temperature of screw extruder be 310 DEG C, engine speed 50Hz.
Embodiment 5：
A kind of modified polyphenyl thioether composite material is present embodiments provided, raw materials for production include following components：
Wherein, the melt index of above-mentioned polyphenylene sulfide is 700g/10min.
<The preparation method of modified polyphenyl thioether composite material>
The present embodiment additionally provides a kind of preparation method of modified polyphenyl thioether composite material, includes the following steps：
(1), 38 parts of boron nitride (boron nitride fiber) and 1.3 parts of coupling agents (KH-151) are added in high-speed mixer, with
The rotating speed of 200rpm mixes 3min at a temperature of 30 DEG C, obtains the first mixture；
(2), 2.0 parts of dispersants (ethylene acrylic acid co polymer) are added in the first mixture in step (1), continued
5min is mixed at a temperature of 70 DEG C with the rotating speed of 600rpm, obtains the second mixture；
(3), by 100 parts of polyphenylene sulfides, 7 parts of compatilizers (ethylene-methyl methacrylate-acrylic ternary copolymer) and
0.6 part of antioxidant (1010/626=1/2) mixes 1min with the rotating speed of 100rpm at a temperature of 30 DEG C, then from Screw Extrusion
The main spout of machine adds in, and the second mixture is added in from the side spout of screw extruder, by 32 parts of glass fibres from screw rod
The glass fibre of extruder adds in mouth and adds in, and through screw extruder extruding pelletization, obtains the modified polyphenyl thioether in pelletized form
Composite material.
Wherein, in step (3), each area's temperature for controlling screw extruder is：The temperature of main spout and side spout
For 280 DEG C, first area's temperature be 290 DEG C, second area's temperature is 300 DEG C, third area temperature is 310 DEG C, the 4th area's temperature is 320
DEG C, the die head temperature of screw extruder be 310 DEG C, engine speed 50Hz.
The component additive amount of above-mentioned each embodiment is as shown in table 1：
The component addition scale of 1 each embodiment of table
The hybrid parameter of above-mentioned each embodiment is as shown in table 2.
The hybrid parameter table of 2 each embodiment of table
Each area's temperature parameter of above-mentioned each embodiment is as shown in table 3.
Each area's temperature parameter table of 3 each embodiment of table
| Type | First area's temperature | Second area's temperature | Third area temperature | 4th area's temperature | 5th area's temperature | 6th area's temperature |
| Embodiment 1 | 280℃ | 290℃ | 290℃ | 300℃ | 310℃ | 300℃ |
| Embodiment 2 | 285℃ | 290℃ | 295℃ | 305℃ | 315℃ | 310℃ |
| Embodiment 3 | 290℃ | 295℃ | 295℃ | 300℃ | 310℃ | 305℃ |
| Embodiment 4 | 280℃ | 290℃ | 295℃ | 305℃ | 315℃ | 310℃ |
| Embodiment 5 | 280℃ | 290℃ | 300℃ | 310℃ | 320℃ | 310℃ |
It is molded into after the product of embodiment 1 to embodiment 5 is dried 5 hours in convection oven in 130 DEG C with injection molding machine
Type, injection temperature are 305 DEG C.The batten of injection formed in 50% relative humidity, 23 DEG C place 24 hours after be tested for the property, survey
Test result is shown in Table 4.
The performance test results table of 4 each embodiment products obtained therefrom of table
Wherein, the performance test methods of above-mentioned each embodiment resulting product are as shown in table 5：
5 performance test methods table of table
| Number | Test method |
| Tensile strength (Mpa) | ASTM D638, tensile speed 5mm/min. |
| Bending modulus (Mpa) | ASTM D790, rate of bending 2mm/min |
| Notch impact strength (KJ/m2) | ASTM D256 |
| Unnotched impact strength (KJ/m2) | ASTM D256 |
| Thermal conductivity factor (W/ (m.K)) | ASTM E1461 |
| Dielectric loss factor | ASTM D150(1.1GHz) |
As seen from the above table, the low dielectric polyphenyl thioether material of high heat conduction that prepared by the present invention has thermal conductivity factor height, dielectric damage
The characteristics of low is consumed, while also good shock resistance, anti-flammability, heat-resisting quantity, telecommunications can be widely used in
Industry.
The above-mentioned description to embodiment is that this hair is understood that and used for the ease of those skilled in the art
It is bright.Those skilled in the art obviously can readily make these embodiments various modifications, and described herein one
As principle be applied in other embodiment, without having to go through creative labor.Therefore, the present invention is not limited to above-described embodiments.
Those skilled in the art's principle according to the present invention, does not depart from improvement that scope of the invention made and modification all should be at this
Within the protection domain of invention.
Claims (10)
1. a kind of polyphenyl thioether composite material, it is characterised in that：Its raw materials for production includes the component with following parts by weight：
2. polyphenyl thioether composite material according to claim 1, it is characterised in that：The melting of the polyphenylene sulfide
Index is 500-1200g/10min, preferably 600-1000g/10min.
3. polyphenyl thioether composite material according to claim 1, it is characterised in that：The glass fibre is low dielectric glass
Glass fiber；
Preferably, dielectric constant≤5.0 of the glass fibre, dielectric loss≤0.005.
4. polyphenyl thioether composite material according to claim 1, it is characterised in that：The boron nitride is nitrogenized to be spherical
Boron, purity ＞ 98%；
Preferably, the grain size of the spherical boron nitride is 10-150 μm；
It is highly preferred that the grain size of the spherical boron nitride is 30-100 μm.
5. polyphenyl thioether composite material according to claim 1, it is characterised in that：The boron nitride is fine for boron nitride
Dimension, purity ＞ 98%；
Preferably, a diameter of 4-9 μm of the boron nitride fiber.
6. polyphenyl thioether composite material according to claim 1, it is characterised in that：The compatilizer is hydrogenation of benzene second
Alkene-butadiene block copolymer (SEBS), maleic anhydride grafting hydrogenated styrene-butadiene block copolymer (SEBS-g-
MAH), glycidyl methacrylate graft hydrogenated styrene-butadiene block copolymer (SEBS-g-GMA), maleic anhydride
One kind in grafted propylene acid-butadiene-styrene (MBS-g-MAH) or ethylene-methyl methacrylate-acrylic ternary copolymer
More than.
7. polyphenyl thioether composite material according to claim 1, it is characterised in that：The coupling agent is selected from vinyl three
Ethoxysilane (KH-151), gamma-aminopropyl-triethoxy-silane (KH-550), γ-glycidyl ether oxygen propyl trimethoxy
Silane (KH-560), γ-glycidoxypropyltrietandysilane andysilane (KH-561) or γ-methacryloxypropyl three
One or more of methoxy silane (KH570)；And/or
The dispersant is selected from pentaerythritol stearate (PETS), ethylene acrylic acid co polymer, ethylene bis stearamide
(EBS), one or more of PE waxes or silicone powder；And/or
The antioxidant is selected from four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester (antioxidant
1010), 1,3,5- tri- (4- tertiary butyl -3- hydroxyls -2,6- dimethyl benzyl) -1,3,5-triazines -2,4,6- (1H, 3H, 5H)-three
Ketone (antioxidant 1790), three [2,4- di-tert-butyl-phenyl] phosphite esters (irgasfos 168), bis- (2,4-DTBP) seasons
Penta tetrol diphosphites (antioxidant 626) or bis- (2,4- dicumylphenyl) pentaerythritol diphosphites (antioxidant
One or more of S9228).
8. the preparation method of any polyphenyl thioether composite material of claim 1 to 7, it is characterised in that：It includes following
Step：
(1), 30-60 parts of boron nitride and 0.8-3.0 parts of coupling agents are mixed, obtains the first mixture；
(2), 1.0-5.0 parts of dispersants are added in the first mixture, the second mixture is obtained after mixing；
(3), from screw extruder after 100 parts of polyphenylene sulfides, 5-15 parts of compatilizers and 0.4-1.2 parts of antioxidant being mixed
Main spout adds in, and the second mixture from the side spout of screw extruder is added in, 10-40 parts of glass fibres are squeezed from screw rod
The glass fibre for going out machine adds in mouth addition, through screw extruder extruding pelletization, obtains answering in the modified polyphenyl thioether of pelletized form
Condensation material.
9. the preparation method of polyphenyl thioether composite material according to claim 8, it is characterised in that：It is mixed in step (1)
Conjunction is carried out in high-speed mixer, and the rotating speed of high-speed mixer is 200-500rpm, and the temperature of mixing is 30-60 DEG C, mixing
Time be 3-6min；And/or
Mixing in step (2) is carried out in high-speed mixer, and the rotating speed of high-speed mixer is 600-1000rpm, mixing
Temperature is 70-120 DEG C, and the time of mixing is 5-15min；And/or
Mixing in step (3) is carried out in high-speed mixer, and the rotating speed of high-speed mixer is 100-400rpm, the temperature of mixing
It is 30-60 DEG C to spend, and the time of mixing is 1-3min.
10. the preparation method of polyphenyl thioether composite material according to claim 8, it is characterised in that：Screw rod in step (2)
Extruder is double screw extruder, and the temperature in each area is 280-320 DEG C.
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