KR0182710B1 - The thermoplastic resin compositions of polyphenylene ether derivatives and their preparation process - Google Patents

Abstract

The polyphenylene ether-based thermoplastic resin composition of the present invention comprises (A) 5 to 95 parts by weight of a mixture of a polyphenylene ether resin or a vinyl aromatic polymer and a polyphenylene ether resin; (B) 1 to 50 parts by weight of the graft copolymer obtained by graft polymerization of 20 to 99 parts by weight of an aromatic vinyl monomer based on 1 to 80 parts by weight of rubbery synthesis; (C) 0.01 to 10 parts by weight of organic peroxide based on the component (B); (E) 5 to 95 parts by weight of polyester resin; And (F) 0 to 40 parts by weight of a styrene impact modifier, wherein the components (A) and (F) are introduced into the first region using an extruder divided into three or more regions, and the component ( And B), (C) and (D), and the component (E) in the third region.

Description

[Name of invention]

Polyphenylene ether-based thermoplastic resin composition and its manufacturing method

Detailed description of the invention

[Field of Invention]

The present invention relates to a polyphenylene ether-based thermoplastic resin composition.

More specifically, the present invention relates to a polyphenylene ether thermoplastic resin composition based on polyphenylene ether and polyamide and comprising a vinyl aromatic polymer, an organic peroxide, a reactive monomer, and a styrene impact modifier, and a method of manufacturing the same.

[Background of invention]

Polyphenylene ether resins or mixtures of polyphenylene ether resins and polystyrene resins are widely used in various fields, such as automotive parts, electrical and electronic parts, because of their excellent mechanical and electrical properties in a high temperature range. However, there are disadvantages in that the solvent resistance and impact resistance of the polyphenylene ether resin are not good and the workability is quite bad.

In addition, polyamide resins are also widely used as general purpose engineering plastics, but their use is limited as engineering plastics because of their excellent chemical resistance and excellent workability, but poor heat resistance and impact resistance. Therefore, a lot of researches have been conducted to complement the drawbacks of these two resins.

U.S. Patent No. 3,379,792 discloses a resin composition in which polyphenylene ether resin contains 0.1 to 25% by weight of polyamide resin. However, in this case, when the content of the polyamide resin is 20% by weight or more, the compatibility between the polyphenylene ether and the polyamide is not good, so phase separation occurs, and as a result, the physical properties of the molded article are significantly reduced.

U.S. Patent No. 4,315,086 discloses 100 parts by weight of a resin composition consisting of 5-95% by weight of polyphenylene ether and 95 to 5% by weight of polyamide (A) liquid diene polymer, (B) a epoxy compound and (C) ( a resin composition containing 0.01 to 30 parts by weight of a compound selected from the group consisting of a) an ethylene carbon-carbon double bond or a triple bond and (b) a compound having a carboxylic acid, an acid anhydride, an acid amide, or a hydroxyl group It is starting.

European Patent No. 046,040 discloses an air comprising an imide compound unit of (a) a polyphenylene ether resin, (b) a vinyl aromatic compound and an α, β-unsaturated dicarboxylic acid to improve heat resistance, oil resistance and impact resistance. A resin composition consisting of coalesce, and (c) polyamide, and optionally (d) impact reinforcing material, is disclosed.

In the PCT patent application PCD / US86 / 01511, in the absence of a free group initiator, at least one carbon-carbon double or triple bond and at least one carboxylic acid, acid anhydride, acidimide, imide, ester in the macromolecule A method for modifying polyphenylene ether is disclosed by mixing at least one functional compound having an amino or hydroxyl group with a liquid polyphenylene ether.

U.S. Patent No. 4,943,399 discloses (a ₁ ) polyphenylether, (a ₂ ) vinylaromatic polymer, (a ₃ ) (a ₃₁ ) α, β-unsaturated carboxylic acid or derivatives thereof in the first region of the extruder; ₃₂ ) a monomer having an amide group and a polymerizable double bond and (a ₃₃ ) at least one monomer selected from a monomer having a lactam group and a polymerizable double bond, (a ₄ ) graft monomer and (a ₅ ) free radical initiator The modified polyphenylene ether (A) obtained by the reaction is introduced, and a polyamide (B), an unmodified polyphenyl ether (C), and a vinyl aromatic polymer (D) are added to a second region, and a third region. Disclosed is a method of continuously producing a polyphenylene ether and a polyamide-based thermoplastic resin composition by adding an impact reinforcing material (E) and other additives (F).

However, resin compositions containing polyphenylene ether modified with unsaturated carboxylic acids or anhydrides thereof, such as maleic anhydride, used in the above-listed patents contain the drawback that the natural color of the resin is severely discolored during the extrusion process.

Polyphenylene ether resins, modified vinyl aromatic graft copolymers, polyamide resins and styrene-based impacts having improved compatibility with polyphenylene ether resins and polyamide resins and excellent natural colors to alleviate the above drawbacks. An invention related to a thermoplastic resin composition consisting of a reinforcing material has been filed in Korean Patent Application No. 95-9731.

In addition, the applicant of the present invention patented a resin composition and a method of manufacturing the same as a polyphenylene ether graft copolymer, an organic peroxide, a reactive monomer, a polyamide, and a styrene-based impact reinforcing material, Korean Patent Application No. 95-37051.

The present invention relates to a novel polyphenylene ether-based thermoplastic resin composition and a manufacturing method thereof in connection with the two Korean patent applications.

[Purpose of invention]

An object of the present invention is a resin composition comprising a polyphenylene ether resin and a polyamide based on a polyaromatic polymer, an organic peroxide, a reactive monomer and a styrene impact modifier. It is to provide a method for producing a polyphenylene ether-based thermoplastic resin composition with improved compatibility.

Another object of the present invention is to provide a method for producing a polyphenylene ether-based thermoplastic resin composition excellent in natural color, that is, the natural color of the resin does not significantly change during the extrusion process.

Another object of the present invention is to provide a method for producing a polyphenylene ether thermoplastic resin composition having good impact resistance, heat resistance, chemical resistance and workability.

[Summary of invention]

Polyphenylene ether-based thermoplastic resin composition of the present invention (A) 5 to 95 parts by weight of a polyphenylene ether resin or a mixture of a vinyl aromatic polymer and a polyphenylene ether resin; (B) 1 to 50 parts by weight of the vinyl aromatic polymer; (C) 0.001 to 2 parts by weight of organic peroxide, based on 100 parts by weight of the component (B); (D) 0.01 to 30 parts by weight of a reactive monomer having an unsaturated carboxylic acid or an anhydride group thereof relative to 100 parts by weight of the component (B); (E) 5 to 95 parts by weight of polyamide resin; And (F) 0 to 40 parts by weight of a styrene impact modifier, wherein the components (A) and (F) are introduced into the first region using an extruder divided into three or more regions, and the components ( And B), (C) and (D), and the component (E) in the third region.

Detailed Description of the Invention

(A) Polyphenylene ether resin which is a component of the thermoplastic resin composition of this invention, (B) Vinyl aromatic polymer, (C) Organic peroxide, (D) Reactive monomer which has unsaturated carboxylic acid or its anhydride group, (E) The polyamide and (F) styrenic impact modifier are described in detail below.

[(A) Polyphenylene Ether Resin]

In the present invention, polyphenylene ether resin may be used alone or a mixture of polyphenylene ether resin and vinyl aromatic polymer may be used.

Examples of polyphenylene ether resins include poly (2, 6-dimethyl-1, 4-phenylene) ether, poly (2, 6-diethyl-1, 4-phenylene) ether, poly (2, 6-di Propyl-1, 4-phenylene) ether, poly (2-methyl-6-1, 4-phenylene) ether, poly (2-methyl-6-propyl-1, 4-phenylene) ether, poly (2 -Ethyl-6-propyl-1, 4-phenylene) ether, poly (2, 6-diphenyl-1, 4-phenylene) ether, poly (2, 6-dimethyl-1, 4-phenylene) ether And a copolymer of poly (2, 3, 6-trimethyl-1, 4-phenylene) ether, and poly (2, 6-dimethyl-1, 4-phenylene) ether and poly (2, 3, 6- Copolymers with triethyl-1,4-phenylene) ether. Among them, a copolymer of poly (2, 6-dimethyl-1, 4-phenylene) ether and poly (2, 3, 6-trimethyl-1, 4-phenylene) ether, and poly (2, 6-dimethyl -1,4-phenylene) ether is preferred, and poly (2, 6-dimethyl-1, 4-phenylene) ether is more preferred.

The degree of polymerization of the polyphenylene ether is not particularly limited, but considering the thermal stability and workability of the resin composition, the intrinsic viscosity is preferably 0.2 to 0.8 dl / g when measured in a 25 ° C. chloroform solvent. The polyphenylene ethers may be used alone or in combination of two or more compounds in an appropriate ratio.

Polyphenylene ether resins have good compatibility with vinyl aromatic polymers. Therefore, also in this invention, the mixture of a polyphenylene ether resin and a vinyl aromatic polymer can be used. Vinyl aromatic polymers include polystyrene, high impact polystyrene, polychlorostyrene, poly alpha-methylstyrene, and poly t-butylstyrene, which may be used alone or in a mixture of two or more. Of these, polystyrene or high impact polystyrene is preferred. Although the molecular weight of a vinyl aromatic polymer is not specifically limited, either, In consideration of thermal stability and workability of a resin composition, it is preferable that weight average molecular weights are 20,000-500,000.

The polyphenylether resin or a mixture of the vinyl aromatic polymer and the polyphenylene ether resin is used in an amount of 5 to 95 parts by weight based on the total resin composition.

[(B) Vinyl Aromatic Polymer]

The vinyl aromatic polymer used in the present invention may be used alone or in combination of two or more copolymers such as polystyrene, high impact polystyrene (HIPS), polychlorostyrene, polyalpha-methylstyrene, polyt-butylstyrene, and the like. It is preferable to use double polystyrene or high impact polystyrene. It is more preferable to use polystyrene especially in consideration of thermal and light stability of the final resin composition. When the molecular weight of a vinyl aromatic polymer considers thermal stability, workability, etc. of a resin composition, it is good that a weight average molecular weight is 20,000-500,000. The vinyl aromatic polymer of the present invention is used 1 to 50 parts by weight based on the total resin composition, preferably 3 to 30 parts by weight. If the amount of the vinyl aromatic polymer is 3 parts by weight or less, there is little effect of improving the compatibility of the resin composition of the present invention, and if it is 30 parts by weight or more, the heat resistance of the resin composition is lowered.

[(C) Organic Peroxide]

Organic peroxides used in the present invention include diisopropyl benzene hydroperoxide, di-t-butyl peroxide, p-ethane hydroperoxide, t-butyl cumyl peroxide, dicumyl peroxide, 2, 5- Dimethyl, 2, 5-di (t-butylperoxy) hexane, di-t-butyldiperoxyphthalate, succinic acid peroxide, t-butyldiperoxybenzoate, t-butylperoxymaleic acid, t- Butyl peroxy isopropyl carbonate, methyl ethyl ketone peroxide, cyclohexanone peroxide and the like can be used, these can be used in one kind or in combination of two or more, in consideration of the double reactivity and processability dicumyl perlock It is better to use side.

The organic peroxide may be used in an amount of up to 2 parts by weight based on 100 parts by weight of the vinyl aromatic polymer of the component (B), and when mixed therein, thermal stability and physical properties of the final resin composition may be significantly reduced due to decomposition of the resin. .

[(D) Reactive Monomer]

Reactive monomers having an unsaturated carboxylic acid or anhydride group used in the present invention include maleic anhydride, maleic phosphoric acid, itaconic anhydride, fumaric acid, acrylic acid and teracrylic acid esters, of which maleic anhydride is used. It is desirable to.

The amount of the reactive monomer having an alpha or beta unsaturated carboxylic acid having a carboxylic acid or anhydride is preferably 0.01 to 30 parts by weight, more preferably 100 parts by weight of the vinyl aromatic polymer of the component (B) of the present invention. 0.1-20 weight part is good. When the addition amount is less than 0.1 weight part with respect to 100 weight part of vinyl aromatic polymers (B), there is little effect which improves the compatibility of a final resin composition.

[(E) Polyamide Resin]

The polyamide resin, which is a component of (E) of the present invention, is polycarrolactam (nylon 6), poly (11-aminountecanoyl acid) (nylon 11), polylauryllactam (nylon 12), poly hexamethylene These, such as adiphamide (nylon 6,6), polyhexaethylene azelamide (nylon 6, 9) polyhexamethylene sebacamide (nylon 6, 10), polyhexamethylene dodecanodiamide (nylon 6, 12) Nylons such as nylon 6/6, 10, nylon 6/6, 6, nylon 6/12, etc., and these may be used alone or in combination of two or more thereof in an appropriate ratio.

However, considering the mechanical properties and heat resistance of the resin composition, it is preferable to use a polyamide resin having a melting point of 200 ° C. or higher and a relative viscosity (measured at 25 ° C. by adding 1% by weight of polyamide resin to m = cresol). good.

[(F) Styrene-based impact modifiers]

Styrene-based impact reinforcement of the component (F) of the present invention is derived from a vinyl aromatic monomer, and may be a diblock or radial tereblock copolymer in the form of AB or ABA.

A diblock or radial tereblock copolymer in the form of AB or ABA is a copolymer consisting of a block of vinyl aromatic monomers and hydrogenated, partially hydrogenated or non-hydrogenated unsaturated dienes. Examples of block copolymers of AB diblock type Polystyrene-polybutadiene (SBR), polystyrene-polyisoprene, polyalphamethylstyrene-polybutadiene copolymers and hydrogenated forms thereof. Such diblock type copolymers are widely known commercially, and representative examples thereof include SOLPRENE and K-RESIN of PHILLIPS, KRATON D and KRATON G of SHELL. Examples of ABA terblock type block copolymers include polystyrene-polybutadiene-polystyrene (SBS), polystyrene-polyisoprene-polystyrene (SIS), polyalphamethylstyrene-polybutadiene-polyalphamethylstyrene, polyalphametalstyrene-poly Copolymers such as isoprene-polyalphamethylstyrene and hydrogenated copolymers thereof. Such ABA tereblock type copolymers are also widely known commercially, and examples thereof include CARIFLEX, KRATON D and KRATON G and KEPRAY SEPTON.

The method for producing the polyphenylether thermoplastic resin composition of the present invention is as follows.

In the production of the thermoplastic resin composition of the present invention, a single screw or twin screw extruder may be used, and in consideration of the self-pulsing characteristics and the distribution of residence time in the extruder, co-rotating Preference is given to using twin screw extruders.

The extruder used in the present invention has a jacket (JACKET) to enable temperature control on each barrel (BARREL). There are no particular restrictions on the screw design of the extruder, and CONVEYOR ELEMENT, KNEADING ELEMENT and MIXING ELEMENT can be used and reverse direction to control the residence time and kneading degree in the extruder A BACKWARD-CONVEYING ELEMENT can be used. The extruder used in the present invention is divided into three zones or more.

In the manufacturing process of the polyphenylene ether resin composition of the present invention, first, the polyphenylene ether resin (A) and the styrene impact modifier (F) as constituents are added to the first region of the extruder, and the polyphenylene ether mixture To form. At this time, it is preferable that the length of the 1st area | region of an extruder is 3-0D, and it is more preferable that it is 5-20D. (D represents the diameter of the extruder screw).

In order to facilitate supply of the resin, it is preferable to attach a conveying element to the first region of the extruder, and then a kneading element and a mixing element may be attached thereto. And at the end of the first region of the extruder to control the residence time can be used by attaching one or more backward-conveying elements (BACKWARD-CONVEYING ELEMENT). It is preferable that the barrel temperature of an extruder 1st area is 240-330 degreeC.

In the manufacturing process of this invention, a component vinyl aromatic polymer (B), an organic peroxide (C), and a reactive monomer (D) are thrown into the 2nd area | region of an extruder. Modified vinyl reacted in the molten state by using a co-extruder composed of a barrel (BARREL) which can be weighed at an appropriate ratio and mixed in the required composition with the polyphenylene ether-based mixture prepared in the first zone of the extruder It is fed to the inlet of the second zone of the extruder in the state of the aromatic polymer. In this case, a single screw or twin screw extruder may be used as the auxiliary extruder, and the diameter of the extruder screw is preferably smaller than the diameter of the main extruder screw, and the length of the extruder is preferably 5 to 40 D, more preferably 10 to 35 D. Do. If the length is 10 D or less, the reaction between the graft copolymer and the reactive monomer does not proceed sufficiently, and there is almost no effect of improving the compatibility of the resin composition of the present invention. Appearance of the color and physical properties may be lowered. The barrel temperature of the co-extruder is preferably 150-230 ° C.

In the manufacturing process of the present invention, the length of the second region of the extruder in which the polyphenylene ether-based mixture introduced in the first region of the extruder and the modified vinyl aromatic graft copolymer supplied from the auxiliary extruder is kneaded is 5 to 30 D. It is preferable and it is more preferable that it is 10-20D. KNEADING ELEMENT and MIXING ELEMENT can be attached to the second area of the extruder, and one or more back-conveying elements can be attached to the end to adjust the residence time. Good to do. The barrel temperature of the second region of the main extruder is preferably used in the same range as the barrel temperature of the first region. It is preferable that the residence time in this area is 0.1 to 10 minutes, and more preferably 0.3 to 5 minutes.

In the production process of the present invention, the component polyamide resin (E) is introduced at the inlet of the third region of the extruder. In order to mix with the mixture extruded in the second zone of the extruder and the required composition, they are metered at an appropriate ratio and fed to the inlet of the third zone of the extruder using a SIDE-FEEDER. At this time, the polyamide resin (E) may be supplied in the form of pellets, or may be supplied in a molten state using a co-extruder.

In the manufacturing process of the present invention, a mixture of the polyphenylene ether resin and the modified graft copolymer extruded in the second zone of the extruder and the polyamide resin supplied from the auxiliary feeder are kneaded, so that the length of the third zone of the extruder is 5 It is preferable that it is -30D, and it is more preferable that it is 7-25D. KNEADING ELEMENT, MIXING ELEMENT, and BACKWARD-CONVEYING ELEMENT can also be used in the third zone of the extruder, and a vent zone can be installed to remove volatiles. In order to effectively remove volatiles, it is desirable to introduce a vacuum device. The barrel temperature of the third zone of the main extruder is also preferably used in the same range as the barrel temperature of the first and second zones.

The thermoplastic resin composition of the present invention may be used according to the use by adding other additives, and in particular, the mechanical strength when an inorganic filler such as glass fiber, carbon fiber, talc, silica, mica, alumina or the like is added And heat deformation temperature (HDT), and the like, which may be supplied with the resins of components (A) to (F), but preferably one after the third zone of the extruder. Alternatively, additional extruder zones (fourth zones) may be additionally provided and fed through the auxiliary feeder, and the size and design of these zones may be based on the second or third zone of the extruder.

The thermoplastic resin composition of the present invention can be prepared using other ultraviolet absorbers, antioxidants, flame retardants, lubricants, dyes, pigments and the like.

The following examples of the present invention will be more specific, and the following examples are only specific examples of the present invention and are not intended to limit or limit the protection scope of the present invention.

EXAMPLE

[(A) Polyphenylene Ether (PPE) Resin]

In the embodiment of the present invention, the polyphenylene ether resin used is PPE (A-1) of Asahi Kasei Co., Ltd., Japan, and polystyrene is HR-2390 (A-2) which is a product of Cheil Industries Co., Ltd. of Korea.

[(B) Vinyl Aromatic Polymer]

The vinyl aromatic polymer used in the embodiment of the present invention is HF-2660, a product of Cheil Industries Co., Ltd., Korea.

[(C) Organic Peroxide]

The organic peroxide used in the examples of the present invention is dicumylperoxide from Aldrich, USA.

[(D) Reactive Monomer]

The reactive monomer used in the Example of this invention is maleic anhydride of a Japanese oil and fat company.

[(E) Polyamide Resin]

In the practice of the present invention, two kinds of polyamide resins (E-1 and E-2) were used. (E-1) is nylon 6 (trade name; KN-171) of KOLON Co. Ltd. of Korea, and (E-2) is nylon 66 (trade name; 21SP) manufactured by Monsanto, USA.

[(F) Styrene-based impact modifiers]

Styrene-based impact reinforcing material used in the present invention is KRATON G 1651 of Shell, USA.

Example 1-6

In Example 1-6 of the present invention, a resin composition was prepared using a twin screw extruder having ψ = 40 mm divided into three zones.

The length of the first zone of the extruder was 12 D, and the screw below the feeder for feeding the weighed solid resin in the weighing scale was designed as a CONVEYING ELEMENT. The length of the conveying screw element was 3 D and the temperature was kept below 30 ° C. The screw portion 3 D was then heated to 240 ° C. and the remaining screw portion 6 D was kept at 280 ° C. A kneading screw element was designed in the middle of the first zone of the extruder and a reverse feed element was introduced at the end.

The length of the second zone of the extruder was 9 D, the front part was equipped with a device for supplying the resin, and the rest were all sealed. Components (B), (C) and (D) were fed to the feeder via a coextruder and the temperature of the screw was maintained at 280 ° C. In the middle was a mixing screw element.

As a coextruder, a twin screw extruder with a screw diameter of 30 mm and a length of 17 D was used, and the extruder barrel temperature was heated to 200 ° C. At the front of the sub-extruder, the material to be extruded was metered in the weighing scale, and the end was connected to the resin feeder in front of the second zone of the main extruder.

The length of the third zone of the extruder was 15 D, the front part was equipped with a device for supplying the resin, the vacuum belt device for removing volatiles in the middle part, and all the rest were sealed. The polyamide resin, component (E), was fed in the form of pellets through an auxiliary feeder in front of the third zone of the extruder and the temperature of the screw was maintained at 280 ° C. A kneading screw element was installed in front of the intermediate venting device, followed by a mixing screw element.

In Example 1-6, a resin composition was prepared in the form of pellets by changing the type and content of each component by the composition and processing method as shown in Table 1, and the pellet was dried at 80 ° C. for 6 hours and then in a 6 Oz injection machine. Molded specimens were prepared by injection molding at a molding temperature of 250-320 ° C. and a mold temperature of 60-90 ° C. Specimens prepared according to Examples 1-6 were prepared with Izod impact strength (1/4, 1/8 notch) according to ASTM D 256, tensile strength and tensile elongation according to ASTM D 628, and heat deflection temperature according to ASTM D 648. 1/4, 4.6 kg load), and whiteness was measured with a colorimeter. The measurement results are shown in Table 2.

(Unit: parts by weight)

As can be seen from the above results, when the content of maleic anhydride is used in an amount of 0.1 parts or less with respect to the graft copolymer, physical properties may be deteriorated.

Comparative Example 1

Comparative Example 1 is a comparative example of Example 4 of the present invention, in which 25 parts by weight of polyphenylene ether, 10 parts by weight of polystyrene HF-2660, 10 parts by weight of impact modifier are added to the first region, and poly is added to the second region. 10 parts by weight of phenylene ether, 0.5 parts by weight of maleic anhydride and 0.05 parts by weight of dicumyl peroxide were melt-kneaded to modify the modified polyphenylene ether in a molten state, and nylon 6KN-171 was added to the third zone for extrusion. It is manufactured.

Comparative Example 2

Comparative Example 2 As a comparative example of Example 4 of the present invention, the components of Example 4 were simultaneously weighed, mixed simultaneously, and prepared.

Comparative Example 3

Comparative Example 3 As a comparative example of Example 4 of the present invention, polyphenylene ether of the constituents of Example 4 was added to the first region of the extruder, and polystyrene HF-2660, maleic anhydride and dicumyl peroxide were added. Was added in the second zone, and the impact reinforcing material and KN-171 were added to the third zone at the same time.

Comparative Example 4

Comparative Example 4 As a comparative example of Example 4, polystyrene HF-2660, maleic anhydride, and dicumyl peroxide, which were introduced into the second region of the components, were extruded in advance to prepare pellets, followed by polyphenylene. The ether and the impact reinforcing material were mixed and introduced into the first region of the extruder, and KN-171 was added to the third region of the extruder.

At this time, the extrusion and injection property measurement method is the same as in Example 1-6, 0.2 parts by weight of antioxidant and heat stabilizer were added. The measurement results are shown in Table 3.

In the results of Table 3, when the modified polyphenylene ether is prepared as a compatibilizer, the physical properties of the final resin composition are generally excellent, but the natural color is not very good (Comparative Example 1). When the impact reinforcing material is added in the third region like polyamide, the decrease in heat resistance is severely shown (Comparative Example 3), and the vinyl aromatic polymer modified with maleic anhydride. Although the overall physical properties are generally excellent when the pellet is used, it can be seen that the natural color is lowered compared to simultaneously using the modified vinyl aromatic polymer in a molten state by using an auxiliary extruder (Comparative Example 4).

Claims (9)

(A) 5 to 95 parts by weight of polyphenylene ether resin; (B) 1 to 50 parts by weight of the vinyl aromatic polymer; (C) 0.001 to 2 parts by weight of organic peroxide based on 100 parts by weight of the component (B); (D) 0.01 to 30 parts by weight of a reactive monomer having an unsaturated carboxylic acid or an anhydride group thereof relative to 100 parts by weight of the component (B); (E) 5 to 95 parts by weight of polyamide resin; And (F) 0 to 40 parts by weight of a styrene impact modifier; In the production of a polyphenylene ether-based thermoplastic resin composition comprising the components (A) and (F) to the first region of the extruder having a barrel temperature of 240 ~ 330 ℃ and a length of 3 ~ 30 D step; And injecting the components (B), (C) and (D) into the second region of the extruder having a length of 5 to 30D while the components in the first region are not cooled. And injecting the component (E) into the third region of the extruder having a length of 5 to 30 D while the components in the second region are not cooled. Method for producing a polyphenylene ether-based thermoplastic resin composition, characterized in that consisting of. The method for producing a polyphenylene ether-based thermoplastic resin composition according to claim 1, wherein the polyphenylene ether resin further comprises a vinyl aromatic polymer. The reactive monomer having an unsaturated carboxylic acid or an anhydride group thereof is at least one selected from the group consisting of maleic anhydride, maleic acid, itaconic anhydride, fumaric acid, acrylic acid, and methacrylic acid esters. A method for producing a polyphenylene ether-based thermoplastic resin composition. The method of claim 1, wherein the organic peroxide is diisopropylbenzenehydroperoxide, di-t-butyl peroxide, p-ethane hydroperoxide, t-butyl cumyl peroxide, dicumyl peroxide, 2, 5 -Dimethyl, 2, 5-di (t-butylperoxy) hexane, di-t-butyldiperoxyphthalate, succinic acid peroxide, t-butyldiperoxybenzoate, t-butylperoxymaleic acid, t-butyl At least one selected from the group consisting of peroxyisopropyl carbonate, methyl ethyl ketone peroxide, and cyclohexanone peroxide, the method for producing a polyphenylene ether-based thermoplastic resin composition. The method according to claim 1, wherein the step of introducing into the second region is performed by a sub-extruder attached to the main extruder. The polyphenylene ether according to claim 5, wherein the components (B), (C) and (D) introduced into the second zone are introduced into the main extruder after reacting in a molten state in the auxiliary extruder. Method for producing a thermoplastic resin composition. The method of claim 1, wherein the method further comprises the step of introducing other additives, such as glass fibers, carbon fibers, talc, silica, mica, alumina, etc., through a fourth continuous region behind the third region of the extruder. The manufacturing method of the polyphenylene ether-type thermoplastic resin composition made into. The method for producing a polyphenylene ether-based thermoplastic resin composition according to claim 1, wherein the residence time in the second region is 0.1 to 10 minutes. Polyphenylene ether-based thermoplastic resin composition prepared according to claim 1.