CN103421299B - A kind of polyphenylene ether composition and preparation method thereof - Google Patents
A kind of polyphenylene ether composition and preparation method thereof Download PDFInfo
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Abstract
The invention provides a kind of polyphenylene ether composition, in described polyphenylene ether composition, comprise following component: polyphenylene oxide 45-69.5 weight part; Modified carbon nano-tube 0.5-5 weight part; High-impact polystyrene 6-15 weight part; Filler 8-20 weight part; Compatilizer 0-5 weight part; Oxidation inhibitor 0-1 weight part; Lubricant 0-0.6 weight part; Wherein, described modified carbon nano-tube is the carbon nanotube of isocyanate ester compound modification.Present invention also offers the preparation method of described polyphenylene ether composition.The carbon nanotube added in polyphenylene ether composition provided by the invention is modified carbon nano-tube, described modified carbon nano-tube is through isocyanate ester compound modification, good with the consistency of polyphenylene ether composition, easily disperse in polyphenylene ether composition, under same amount, make polyphenylene ether composition have more excellent conductivity.
Description
Technical field
The present invention relates to engineering plastics field, particularly relate to a kind of polyphenylene ether composition and preparation method thereof.
Background technology
Polyphenylene oxide (PPO) belongs to one of five large-engineering plastics, and it has good mechanical property, electric property, higher thermotolerance and dimensional stability.Existing semiconductor core tablet tray, IC tray are mainly through at acrylonitrile-butadiene-styrene copolymer (ABS), polyphenylene oxide (PPO), and in polysulfones (PSF) or polyethersulfone (PES) resin, mixed carbon fibre, carbon black or other mineral fillers manufacture.
Semiconductor core tablet tray, IC tray material must have the characteristics such as excellent mechanical property, good static dissipation capability, high heat resistance, dimensional stabilizing, warpage are little.In order to provide electroconductibility to IC tray, prevent pallet from accumulating electrostatic, traditional way adds the conductive filler material such as carbon black or carbon fiber in its base resin material.Although carbon fiber polyphenylene ether composition has enhancement, carbon fiber production energy consumption is large, addition is generally about 15% of polyphenylene ether composition gross weight, and market is mainly monopolized by external a few company, causes domestic market under-supply; Although carbon black price is lower, addition generally will reach about 30% of polyphenylene ether composition gross weight, causes dust phenomenon serious, and can bring disadvantageous effect to performance.Compare with carbon black with carbon fiber, the polyphenylene ether composition after the nano effect that carbon nanotube has can make filling under less consumption has excellent conductivity, does not affect the mechanical property of polyphenylene ether composition simultaneously.
CN101608059A discloses with 25-65% polyphenylene oxide, 0.5-5% carbon nanotube, 15-45% acicular wollastonite, 10-30%HIPS, 0-10% oxidation inhibitor, 0-10% auxiliary antioxidant, and 0-10% dispersion agent is raw material, prepares conducting polyaniline ether composition.CN101280102A to disclose with 20-60% polyphenylene oxide, 10-30% glass fibre, 10-20% mineral filler, 0.5-5% carbon nanotube, 10-30% high-impact polystyrene as raw material, has prepared conducting polyaniline ether composition.But, the carbon nanotube in above-mentioned two sections of documents and polyphenylene ether composition consistency not good enough, affect its dispersion and the giving full play to of conductive capability, in addition, the flame retardant properties of this polyphenylene ether composition and impact resistance are also poor.
Summary of the invention
The present invention of the prior artly adds carbon nanotube to solve in conducting polyaniline ether composition, carbon nanotube and polyphenylene ether composition consistency not good enough, affect the technical problem of carbon nanotube dispersed and conductive capability.
The invention provides a kind of polyphenylene ether composition, containing following component in described polyphenylene ether composition:
Polyphenylene oxide 45-69.5 weight part;
Modified carbon nano-tube 0.5-5 weight part;
High-impact polystyrene 6-15 weight part;
Filler 8-20 weight part;
Compatilizer 0-5 weight part;
Oxidation inhibitor 0-1 weight part;
Lubricant 0-0.6 weight part;
Wherein, described modified carbon nano-tube is the carbon nanotube of isocyanate ester compound modification.
Present invention also offers the preparation method of described polyphenylene ether composition, comprise the following steps:
A, polyphenylene oxide, modified carbon nano-tube, high-impact polystyrene, filler, compatilizer, oxidation inhibitor, lubricant to be stirred in proportion, obtain mixed material;
B, mixed material to be melt extruded, then through water-cooled, air-dry, pelletizing, obtain described polyphenylene ether composition.
The carbon nanotube added in polyphenylene ether composition provided by the invention is modified carbon nano-tube, described modified carbon nano-tube is through isocyanate ester compound modification, good with the consistency of polyphenylene ether composition, easily disperse in polyphenylene ether composition, under same amount, make polyphenylene ether composition have more excellent conductivity; Further, in polyphenylene ether composition, add hydrogenated styrene block copolymers, improve the impact resistance of polyphenylene ether composition; Add the flame retardant properties that organophosphorus compounds improves polyphenylene ether composition.
Embodiment
The invention provides a kind of polyphenylene ether composition, containing following component in described polyphenylene ether composition:
Polyphenylene oxide 45-69.5 weight part;
Modified carbon nano-tube 0.5-5 weight part;
High-impact polystyrene 6-15 weight part;
Filler 8-20 weight part;
Compatilizer 0-5 weight part;
Oxidation inhibitor 0-1 weight part;
Lubricant 0-0.6 weight part.
In polyphenylene ether composition provided by the invention, adopt modified carbon nano-tube, existing carbon nanotube is carried out modification, makes modified carbon nano-tube and polyphenylene oxide have good consistency, easily disperse in polyphenylene ether composition, make polyphenylene ether composition have more excellent conductivity.Described carbon nanotube is the carbon nanotube of isocyanate ester compound modification, in the preferred case, described isocyanate ester compound can be selected from one or more in diphenylmethanediisocyanate, tolylene diisocyanate, isophorone diisocyanate, poly methylene poly phenyl poly isocyanate, hexamethylene diisocyanate.There is good consistency through the carbon nanotube of isocyanate ester compound modification and polyphenylene oxide, the conductivity of polyphenylene ether composition can be significantly improved.
In the preferred case, described polyphenylene ether composition also comprises organophosphorus compounds, and the content of described organophosphorus compounds is 3-10 weight part.Described organophosphorus compounds can promote the generation of coking charcoal, improves the flame retardant properties of polyphenylene ether composition of the present invention.And organophosphorus compounds of the present invention all can not the mechanical property of polyphenylene ether composition and conductivity have an impact, and therefore can effectively ensure its mechanical property and conductivity.Described organic phosphoric acid ester composition directly can adopt various organophosphate ester flame retardant conventional in prior art, preferably, described machine phosphate-ester composition can be selected from poly-Resorcinol-bis-(diphenyl phosphate), triphenylphosphate, two (phenylbenzene) phosphoric acid ester of dihydroxyphenyl propane, two (phenylbenzene) phosphoric acid ester of Resorcinol, tetraphenyl diphenol A diphosphonate, poly-tetraphenyl resorcinol diphosphate, two [(5-Ethyl-2-Methyl-1, 3, 2-dioxa phosphorus hexanaphthene-5-supports) methyl] methyl phosphorodithioate P, P '-dioxide, methyl-phosphorous acid two (2-methyl-5-ethyl-2-oxo-1, 3, 2-dioxa phosphorus hexanaphthene-5-methylene radical) ester, methyl-phosphorous acid (2-methyl-5-ethyl-2-oxo-1, 3, 2-dioxa phosphorus hexanaphthene-5-methylene radical) methyl ester, phosphoric acid (2-methyl-5-ethyl-2-oxo-1, 3, 2-dioxa phosphorus hexanaphthene-5-methylene radical) dimethyl esters, phosphoric acid (2-methyl-5-ethyl-2-oxo-1, 3, 2-dioxa phosphorus hexanaphthene-5-methylene radical) one or more in diethyl ester.Described organophosphate ester flame retardant directly can adopt commercial products, such as, can adopt the PX-200 of Japan large eight.
In the preferred case, described polyphenylene ether composition also comprises hydrogenated styrene block copolymers, described hydrogenated styrene block copolymers (SEBS) is elastomerics, its role is to the shock strength and the toughness that improve composition system, the content of described hydrogenated styrene block copolymers is 3-15 weight part, can improve the impact resistance of polyphenylene ether composition by adding hydrogenated styrene block copolymers.
In the present invention, the various polyphenylene oxide that described polyphenylene oxide (PPO) is commonly used for those skilled in the art, the present invention is not particularly limited.In the preferred case, described polyphenylene oxide can be selected from poly-(2,6-dimethyl-1,4-phenylene) ether, poly-(2-ethyl-6-methyl isophthalic acid, 4-phenylene) ether, poly-(2,6-diethyl-1,4-phenylene) ether, poly-(2-ethyl-6-n-propyl-1,4-phenylene) ether, poly-(2,6-diη-propyl-Isosorbide-5-Nitrae-phenylene) ether, poly-(2-methyl-6-n-propyl-Isosorbide-5-Nitrae-phenylene) ether, poly-(2-ethyl-6-sec.-propyl-1,4-phenylene) ether, poly-(2-methyl-6-hydroxyethyl-Isosorbide-5-Nitrae-phenylene) ether one or more.In the present invention, described polyphenylene oxide also directly can adopt commercial products, such as, can adopt the LXR040 of blue star chemical industry.
In the present invention, described high-impact polystyrene (HIPS), for improving the melting index of composition system, makes the mobility of composition accelerate, thus improves the processing characteristics of described polyphenylene ether composition.In the preferred case, the melt flow rate (MFR) of HIPS under 200 DEG C and 5Kg load is 2-10g/10min.
In the present invention, the kind of described compatilizer is various low-molecular olefine polymkeric substance known in those skilled in the art, for improving the consistency of modified carbon nano-tube and PPO.In the present invention, described compatilizer can adopt commercial products, such as, can adopt the M3002 of Shanghai Liang Dian Chemical Company.
In the present invention, described oxidation inhibitor is for improving the ageing resistance of described polyphenylene ether composition, and it is conventionally known to one of skill in the art, such as, can be selected from one or more in phosphoric acid ester oxidation inhibitor, phenolic antioxidant.In the preferred case, described oxidation inhibitor adopts the mixture of phosphoric acid ester oxidation inhibitor and phenolic antioxidant, and its mass ratio is 1:1.Described oxidation inhibitor can adopt commercial products, such as, can adopt N445 and N412S of Shanghai Liang Dian Chemical Company, and wherein N445 is phosphoric acid ester oxidation inhibitor, and N412S is phenolic antioxidant.
In the present invention, described lubricant, for improving the surface flatness of the sample of polyphenylene ether composition making, reduces frictional force.Particularly, described lubricant is selected from one or more in aliphatic amide type.Described lubricant also directly can adopt commercial products, such as, can adopt the P-180 of Shanghai Liang Dian Chemical Company.
Present invention also offers the preparation method of described polyphenylene ether composition, comprise the following steps:
A, polyphenylene oxide, modified carbon nano-tube, high-impact polystyrene, filler, compatilizer, oxidation inhibitor, lubricant to be stirred in proportion, obtain mixed material;
B, mixed material to be melt extruded, then through water-cooled, air-dry, pelletizing, obtain described polyphenylene ether composition.
Preparation in accordance with the present invention, in step, also optionally adds hydrogenated styrene block copolymers and/or organophosphorus compounds stirs, obtains mixed material; In step, described in be stirred in high-speed mixer and carry out, churning time is 3-10 minute, and stirring velocity is 200-1000rpm/min.
In stepb, described melt extrude carry out in twin screw extruder, be 5-40rpm/min by the feed rate that mixed material drops into twin screw extruder, engine speed is 200-400rpm/min, and in twin screw extruder, each zone temperature of barrel is 200-280 DEG C; Described pelletizing adopts dicing machine, and pelletizing speed is 100-1200rpm/min.
The present inventor finds through long-term research, the carbon nanotube of isocyanate ester compound modification and polyphenylene oxide have preferably consistency, the carbon nanotube of described isocyanate ester compound modification is prepared by contriver, preparation method be by carbon nanotube dispersed in containing isocyanates properties-correcting agent organic solution in, the mass ratio of carbon nanotube and isocyanates properties-correcting agent is (20-1): 1, under agitation, 0.5-12h is reacted at 50-100 DEG C, filter, washing, namely modified carbon nano-tube is obtained after dry, pulverize at 40-80 DEG C; Described isocyanates properties-correcting agent is isocyanate ester compound, one or more in preferred diphenylmethanediisocyanate, tolylene diisocyanate, isophorone diisocyanate, poly methylene poly phenyl poly isocyanate, hexamethylene diisocyanate; The solvent of the described organic solution containing isocyanates properties-correcting agent is preferably benzene kind solvent, such as: toluene, dimethylbenzene.
In sum, the polyphenylene ether composition obtained by above-mentioned preparation method is owing to adding modified carbon nano-tube, described modified carbon nano-tube is through isocyanate ester compound modification, good with the consistency of polyphenylene ether composition, easily disperse in polyphenylene ether composition, under same amount, make polyphenylene ether composition have more excellent conductivity; Further, in polyphenylene ether composition, add hydrogenated styrene block copolymers, improve the impact resistance of polyphenylene ether composition; Add the flame retardant properties that organophosphorus compounds improves polyphenylene ether composition.
In order to make technical problem solved by the invention, technical scheme and beneficial effect clearly understand, below in conjunction with embodiment, the present invention is further elaborated.
Embodiment 1
1, by carbon nanotube dispersed in containing diphenylmethanediisocyanate anhydrous toluene solution in, carbon nanotube is 20:1 with the mass ratio containing diphenylmethanediisocyanate, under continuous stirring, 0.5h is reacted at 50 DEG C, filter, washing, namely obtains modified carbon nano-tube after dry, pulverize at 40 DEG C;
2, PX-200,3Kg SEBS of the wollastonite of the high-impact polystyrene of the modified carbon nano-tube of the polyphenylene oxide of 69.5Kg, 0.5Kg, 6Kg, 8Kg, 10Kg is joined in high mixer, stir the material obtaining mixing for 3 minutes with 1000rpm/min; Put in twin screw extruder by the material mixed and melt extrude at 220 DEG C, wherein feed rate is 5 rpm/min, and engine speed is 200 rpm/min; By the polyphenylene ether composition after extruding through water-cooled, air-dry, finally by dicing machine pelletizing under 100 rpm/min, obtain the polyphenylene ether composition A1 of the present embodiment.
Embodiment 2
1, by carbon nanotube dispersed in containing in the anhydrous toluene solution of isophorone diisocyanate, the mass ratio of carbon nanotube and isophorone diisocyanate is 1:1, constantly under stirring, at 100 DEG C, react 12h, filter, washing, namely modified carbon nano-tube is obtained after dry, pulverize at 80 DEG C;
2, the P-180 of N412S and 0.6Kg of N445,0.5Kg of PX-200,15Kg SEBS, 0.5Kg of the mica of the high-impact polystyrene of the modified carbon nano-tube of the polyphenylene oxide of 45Kg, 5Kg, 15Kg, 20Kg, 3Kg is joined in high mixer, stir the material obtaining mixing for 10 minutes with 200rpm/min; Put in twin screw extruder by the material mixed and melt extrude at 240 DEG C, wherein feed rate is 40 rpm/min, and engine speed is 400 rpm/min; By the polyphenylene ether composition after extruding through water-cooled, air-dry, finally by dicing machine pelletizing under 1200 rpm/min, obtain polyphenylene ether composition A2.
Embodiment 3
1, by carbon nanotube dispersed in containing in the anhydrous toluene solution of tolylene diisocyanate, the mass ratio of carbon nanotube and tolylene diisocyanate is 5:1, constantly under stirring, at 80 DEG C, react 1 h, filter, washing, namely modified carbon nano-tube is obtained after dry, pulverize at 60 DEG C;
2, the N412S of N445 and 0.3Kg of PX-200,8Kg SEBS, 0.3Kg of the chopped glass fiber of the high-impact polystyrene of the modified carbon nano-tube of the polyphenylene oxide of 50Kg, 2Kg, 8Kg, 12Kg, 5Kg is joined in high mixer, stir the material obtaining mixing for 5 minutes with 800rpm/min; Put in twin screw extruder by the material mixed and melt extrude at 270 DEG C, wherein feed rate is 27 rpm/min, and engine speed is 335 rpm/min; By the polyphenylene ether composition after extruding through water-cooled, air-dry, finally by dicing machine pelletizing under 800 rpm/min, obtain polyphenylene ether composition A3.
Embodiment 4
1, by carbon nanotube dispersed in containing poly methylene poly phenyl poly isocyanate anhydrous toluene solution in, the mass ratio of carbon nanotube and poly methylene poly phenyl poly isocyanate is 5:1, under continuous stirring, 1 h is reacted at 80 DEG C, filter, washing, namely obtains modified carbon nano-tube after dry, pulverize at 60 DEG C;
2, the M3002 of N412S, 3Kg of N445 and 0.4Kg of PX-200,10Kg SEBS, 0.4Kg of the silicon-dioxide of the high-impact polystyrene of the modified carbon nano-tube of the polyphenylene oxide of 60Kg, 1.8Kg, 10Kg, 15Kg, 2.5Kg is joined in high mixer, stir the material obtaining mixing for 5 minutes with 900rpm/min; Put in twin screw extruder by the material mixed and melt extrude at 250 DEG C, wherein feed rate is 25 rpm/min, and engine speed is 320 rpm/min; By the polyphenylene ether composition after extruding through water-cooled, air-dry, finally by dicing machine pelletizing under 700 rpm/min, obtain polyphenylene ether composition A4.
Embodiment 5
1, by carbon nanotube dispersed in containing in the anhydrous toluene solution of hexamethylene diisocyanate, the mass ratio of carbon nanotube and hexamethylene diisocyanate is 5:1, constantly under stirring, at 80 DEG C, react 1 h, filter, washing, namely modified carbon nano-tube is obtained after dry, pulverize at 60 DEG C;
2, the high-impact polystyrene of the modified carbon nano-tube of the polyphenylene oxide of 60Kg, 1.5Kg, 8Kg, the length of 18Kg are cut glass, the M3002 of P-180,3Kg of N412S, 0.6Kg of N445 and 0.3Kg of PX-200,5Kg SEBS, 0.3Kg of 3Kg joins in high mixer, stir the material obtaining mixing for 5 minutes with 600rpm/min; Put in twin screw extruder by the material mixed and melt extrude at 270 DEG C, wherein feed rate is 20 rpm/min, and engine speed is 300 rpm/min; By the polyphenylene ether composition after extruding through water-cooled, air-dry, finally by dicing machine pelletizing under 600 rpm/min, obtain polyphenylene ether composition A5.
Embodiment 6
1, by carbon nanotube dispersed in containing in the anhydrous toluene solution of diphenylmethanediisocyanate, the mass ratio of carbon nanotube and diphenylmethanediisocyanate is 5:1, constantly under stirring, at 80 DEG C, react 1 h, filter, washing, namely modified carbon nano-tube is obtained after dry, pulverize at 60 DEG C;
2, the M3002 of P-180 and 0.35Kg of PX-200,10Kg SEBS, 0.35Kg of the talcum powder of the high-impact polystyrene of the modified carbon nano-tube of the polyphenylene oxide of 60Kg, 2.5Kg, 9Kg, 10Kg, 1.8Kg is joined in high mixer, stir the material obtaining mixing for 8 minutes with 300rpm/min; Put in twin screw extruder by the material mixed and melt extrude at 240-270 DEG C, wherein feed rate is 30rpm/min, and engine speed is 380 rpm/min; By the polyphenylene ether composition after extruding through water-cooled, air-dry, finally by dicing machine pelletizing under 1000 rpm/min, obtain polyphenylene ether composition A6.
Embodiment 7
Embodiment 7 is substantially identical with content with the raw material of embodiment 3, and difference is that embodiment 7 does not add raw material hydrogenated styrene block copolymers;
By carbon nanotube dispersed in the anhydrous toluene solution containing tolylene diisocyanate, the mass ratio of carbon nanotube and tolylene diisocyanate is 5:1, under constantly stirring, at 80 DEG C, react 1 h, filter, washing, namely modified carbon nano-tube is obtained after dry, pulverize at 60 DEG C;
The N412S of N445 and 0.3Kg of the chopped glass fiber of the high-impact polystyrene of the modified carbon nano-tube of the polyphenylene oxide of 50Kg, 2Kg, 8Kg, 12Kg, PX-200,0.3Kg of 5Kg is joined in high mixer, stirs the material obtaining mixing for 5 minutes with 800rpm/min; Put in twin screw extruder by the material mixed and melt extrude at 270 DEG C, wherein feed rate is 27 rpm/min, and engine speed is 335 rpm/min; By the polyphenylene ether composition after extruding through water-cooled, air-dry, finally by dicing machine pelletizing under 800 rpm/min, obtain polyphenylene ether composition A7.
Embodiment 8
Embodiment 8 is substantially identical with content with the raw material of embodiment 3, and difference is that embodiment 8 does not add raw material organophosphorus compounds PX-200;
1, by carbon nanotube dispersed in containing in the anhydrous toluene solution of tolylene diisocyanate, the mass ratio of carbon nanotube and tolylene diisocyanate is 5:1, constantly under stirring, at 80 DEG C, react 1 h, filter, washing, namely modified carbon nano-tube is obtained after dry, pulverize at 60 DEG C;
2, the N412S of N445 and 0.3Kg of the chopped glass fiber of the high-impact polystyrene of the modified carbon nano-tube of the polyphenylene oxide of 50Kg, 2Kg, 8Kg, 12Kg, 8Kg SEBS, 0.3Kg is joined in high mixer, stir the material obtaining mixing for 5 minutes with 800rpm/min; Put in twin screw extruder by the material mixed and melt extrude at 250 DEG C, wherein feed rate is 27 rpm/min, and engine speed is 335 rpm/min; By the polyphenylene ether composition after extruding through water-cooled, air-dry, finally by dicing machine pelletizing under 800 rpm/min, obtain polyphenylene ether composition A8.
Comparative example 1
With the difference of embodiment 3, comparative example 1 is that embodiment 7 does not add modified carbon nano-tube;
The N412S of N445 and 0.3Kg of PX-200,8Kg SEBS, 0.3Kg of the chopped glass fiber of the high-impact polystyrene of the polyphenylene oxide of 50Kg, 8Kg, 12Kg, 5Kg is joined in high mixer, stirs the material obtaining mixing for 5 minutes with 800rpm/min; Put in twin screw extruder by the material mixed and melt extrude at 240 DEG C, wherein feed rate is 27 rpm/min, and engine speed is 335 rpm/min; By the polyphenylene ether composition after extruding through water-cooled, air-dry, finally by dicing machine pelletizing under 800 rpm/min, obtain polyphenylene ether composition DA1.
Comparative example 2
Comparative example 2 and the difference of embodiment 3 are the carbon nanotube non-modified process added;
The N412S of N445 and 0.3Kg of PX-200,0.3Kg of the chopped glass fiber of the high-impact polystyrene of the carbon nanotube of the polyphenylene oxide of 50Kg, 2Kg, 8Kg, 12Kg, 8Kg SEBS, 5Kg is joined in high mixer, stirs the material obtaining mixing for 5 minutes with 800rpm/min; Put in twin screw extruder by the material mixed and melt extrude at 240 DEG C, wherein feed rate is 27 rpm/min, and engine speed is 335 rpm/min; By the polyphenylene ether composition after extruding through water-cooled, air-dry, finally by dicing machine pelletizing under 800 rpm/min, obtain polyphenylene ether composition DA2.
Polyphenylene ether composition A1-A8 prepared by embodiment 1-8 and comparative example 1-2, DA1-DA2 is injection molded into after standard batten through injection moulding machine, the melting index of method test each sample disclosed in ASTM D 1238, the tensile strength of method test each sample disclosed in ASTM D 638, disclosed in ASTM D 790, method tests flexural strength and the modulus in flexure of each sample, the shock strength of method test each sample disclosed in ASTM D 256, the heat-drawn wire of method test each sample disclosed in ASTM D 684, disclosed in UL 94 1/16, method test thickness is respectively the flame retardant properties (burning rank) of the batten of 1.6mm and 3.2mm, in addition, the conductivity of polyphenylene ether composition is measured by volume specific resistance tester, test result is as shown in table 1.
Table 1
As can be seen from the test result of upper table 1, polyphenylene ether composition prepared by the embodiment of the present invention has preferably conductivity.Such as, compare as can be seen from the test result of embodiment 3 with comparative example 1,2, adopt modified carbon nano-tube in polyphenylene ether composition of the present invention, compared to the carbon nanotube not adopting carbon nanotube and employing non-modified, the polyphenylene ether composition of embodiment 3 has more excellent conductivity;
In addition, compare as can be seen from the test result of embodiment 3 with embodiment 7, when in polyphenylene ether composition containing hydrogenated styrene block copolymers time, there is preferably resistance to impact shock; Compare as can be seen from the test result of embodiment 3 with embodiment 8, time in polyphenylene ether composition containing organophosphorus compounds, there is preferably flame retardant properties.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. a polyphenylene ether composition, is characterized in that, comprises following component in described polyphenylene ether composition:
Polyphenylene oxide 45-69.5 weight part;
Modified carbon nano-tube 0.5-5 weight part;
High-impact polystyrene 6-15 weight part;
Filler 8-20 weight part;
Compatilizer 0-5 weight part;
Oxidation inhibitor 0-1 weight part;
Lubricant 0-0.6 weight part;
Wherein, described modified carbon nano-tube is the carbon nanotube of isocyanate ester compound modification.
2. polyphenylene ether composition according to claim 1, is characterized in that, described polyphenylene ether composition also comprises hydrogenated styrene block copolymers, and the content of described hydrogenated styrene block copolymers is 3-15 weight part.
3. polyphenylene ether composition according to claim 1, is characterized in that, described polyphenylene ether composition also comprises organophosphorus compounds, and the content of described organophosphorus compounds is 3-10 weight part.
4. polyphenylene ether composition according to claim 3, is characterized in that, described organophosphorus compounds is selected from Resorcinol-bis-(diphenyl phosphate), triphenylphosphate, two (phenylbenzene) phosphoric acid ester of dihydroxyphenyl propane, two (phenylbenzene) phosphoric acid ester of Resorcinol, tetraphenyl diphenol A diphosphonate, tetraphenyl resorcinol diphosphate, two [(5-Ethyl-2-Methyl-1,3,2-dioxa phosphorus hexanaphthene-5-supports) methyl] methylphosphonate-P, P '-dioxide, methyl-phosphorous acid two (2-methyl-5-ethyl-2-oxo-1,3,2-dioxa phosphorus hexanaphthene-5-methylene radical) ester, methyl-phosphorous acid (2-methyl-5-ethyl-2-oxo-1,3,2-dioxa phosphorus hexanaphthene-5-methylene radical) methyl ester, phosphoric acid (2-methyl-5-ethyl-2-oxo-1,3,2-dioxa phosphorus hexanaphthene-5-methylene radical) dimethyl esters, one or more in phosphoric acid (2-methyl-5-ethyl-2-oxo-1,3,2-dioxa phosphorus hexanaphthene-5-methylene radical) diethyl ester.
5. polyphenylene ether composition according to claim 1, it is characterized in that, described polyphenylene oxide is selected from poly-(2, 6-dimethyl-1, 4-phenylene) ether, poly-(2-ethyl-6-methyl isophthalic acid, 4-phenylene) ether, poly-(2, 6-diethyl-1, 4-phenylene) ether, poly-(2-ethyl-6-n-propyl-1, 4-phenylene) ether, poly-(2, 6-diη-propyl-1, 4-phenylene) ether, poly-(2-methyl-6-n-propyl-1, 4-phenylene) ether, poly-(2-ethyl-6-sec.-propyl-1, 4-phenylene) ether, poly-(2-methyl-6-hydroxyethyl-1, 4-phenylene) one or more in ether.
6. polyphenylene ether composition according to claim 1, it is characterized in that, described isocyanate ester compound is selected from one or more in diphenylmethanediisocyanate, tolylene diisocyanate, isophorone diisocyanate, poly methylene poly phenyl poly isocyanate, hexamethylene diisocyanate.
7. polyphenylene ether composition according to claim 1, is characterized in that, described filler is wollastonite, mica, silicon-dioxide, chopped glass fiber, one or more of cutting in glass, talcum powder long.
8. polyphenylene ether composition according to claim 1, is characterized in that, described compatilizer is low-molecular olefine polymkeric substance; Described oxidation inhibitor is selected from one or more in Hinered phenols antioxidant, phosphoric acid ester oxidation inhibitor; Described lubricant be selected from aliphatic amide type one or more.
9. a preparation method for polyphenylene ether composition as claimed in claim 1, comprises the following steps:
A, polyphenylene oxide, modified carbon nano-tube, high-impact polystyrene, filler, compatilizer, oxidation inhibitor, lubricant to be stirred in proportion, obtain mixed material;
B, mixed material to be melt extruded, then through water-cooled, air-dry, pelletizing, obtain described polyphenylene ether composition.
10. preparation method according to claim 9, is characterized in that, in step, also adds and has hydrogenated styrene block copolymers and/or organophosphorus compounds to stir, obtain mixed material; Described being stirred in high-speed mixer is carried out, and churning time is 3-10 minute, and stirring velocity is 200-1000rpm.
11. preparation methods according to claim 9, it is characterized in that, the preparation method of described modified carbon nano-tube is in containing in the organic solution of isocyanates properties-correcting agent by carbon nanotube dispersed, the mass ratio of carbon nanotube and isocyanates properties-correcting agent is (20-1): 1, under agitation, at 50-100 DEG C, react 0.5-12h, filter, wash, namely modified carbon nano-tube is obtained after dry, pulverize at 40-80 DEG C.
12. preparation methods according to claim 11, it is characterized in that, described isocyanates properties-correcting agent is isocyanate ester compound, is selected from one or more in diphenylmethanediisocyanate, tolylene diisocyanate, isophorone diisocyanate, poly methylene poly phenyl poly isocyanate, hexamethylene diisocyanate; The solvent of the described organic solution containing isocyanates properties-correcting agent is benzene kind solvent.
13. preparation methods according to claim 9, is characterized in that, in stepb, described in melt extrude and carry out in twin screw extruder, feed rate is 5-40rpm, and engine speed is 200-400rpm, and each zone temperature of barrel is 200-280 DEG C; Described pelletizing adopts dicing machine, and pelletizing speed is 100-1200rpm.
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| CN106751712A (en) * | 2017-01-20 | 2017-05-31 | 泰州艳阳天塑料科技有限公司 | A kind of low addition, ultralight superconduction flame-retardant PPO alloy and preparation method thereof |
| CN110885546A (en) * | 2018-09-11 | 2020-03-17 | 汉达精密电子(昆山)有限公司 | Halogen-free flame-retardant PPO (polyphenylene oxide) antistatic material |
| CN109860479A (en) * | 2018-12-26 | 2019-06-07 | 欣旺达电子股份有限公司 | The preparation method of lithium battery diaphragm coating, diaphragm and diaphragm coating |
| CN115975368A (en) * | 2022-12-08 | 2023-04-18 | 烯湾科城(广州)新材料有限公司 | MPPO composite material and preparation method thereof |
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