KR20150119743A - Method and apparatus for preparing thermoplastic resin form - Google Patents

Abstract

The present invention relates to a method for preparing a thermoplastic resin forming product and a preparing apparatus, and more specifically, to the additive from a synthesis of inorganic additives which can be included in a thermoplastic resin composition and a method for preparing a thermoplastic resin forming product which can sequentially process a mixture, processing, melting and shaping of the thermoplastic resin and a preparing apparatus. According to the present invention, provided are a method for preparing a thermoplastic resin forming product and a preparing apparatus which synthesizes inorganic additives, comprises a step for melting and shaping them after preparing, processing a resin composition comprising the inorganic additives in the form of pellets, powder and chips or the like and can produce thermoplastic resin forming product comprising the inorganic additives of various types through a simplified continuous process.

Description

METHOD AND APPARATUS FOR PREPARING THERMOPLASTIC RESIN FORM BACKGROUND OF THE INVENTION [0001]

The present invention relates to a method and an apparatus for producing a thermoplastic resin molded article, and more particularly, to a method and apparatus for producing a thermoplastic resin molded article which can continuously perform mixing, processing, melting and molding of the additive and the thermoplastic resin from the synthesis of an inorganic additive which can be contained in the thermoplastic resin composition And a method of manufacturing the thermoplastic resin molded article.

The thermoplastic resin is a polymeric compound material which is softened at a high temperature over a certain temperature range and hardened when it is cooled at a temperature lower than the range and can be changed in plasticity by applying heat and pressure, . Since such a thermoplastic resin is melted and softened by heating only a few times, it is easily heated or melted in a solvent to be softened, processed into a desired shape, and then cooled to form a hard molded product.

Thermoplastic resins are used in various fields such as building materials, experimental materials, electronic parts materials and household goods due to their easy processability and excellent mechanical and chemical properties. Especially, they have non-conductive properties except for special cases Therefore, it is widely used as a basic substrate such as a semiconductor substrate and a circuit substrate.

These thermoplastic resins are processed by adding various kinds of additives in order to have properties required for the purpose of use such as processability, mechanical properties, and chemical properties at the time of processing. In general, the thermoplastic resin is processed by pellets or the like to be stored in a form that is easy to be subjected to secondary processing or the like. Such additives are synthesized through separate processes and apparatuses, and thermoplastic resins Is mixed with the separately prepared additive and subjected to a non-continuous and complicated process such as melting, kneading, injection, etc., which is completed as a molded product.

Therefore, there is a need for research on a method for easily producing a thermoplastic resin molded article containing additives according to characteristics required for a purpose of use, which can be mass-produced while being subjected to a simple process.

The present invention relates to a method and an apparatus for easily producing a thermoplastic resin molded article containing various kinds of inorganic additives according to the characteristics required for the purpose of use, while being capable of mass production while being subjected to a simple process in a single continuous process ≪ / RTI >

The present invention relates to a process for the production of an inorganic additive, comprising the steps of: synthesizing an inorganic additive from an inorganic additive precursor; Preparing a thermoplastic resin composition by mixing the synthesized inorganic additive and a thermoplastic resin; And molding the thermoplastic resin composition, wherein the step of synthesizing or molding the inorganic additive continues in a single apparatus.

The inorganic additive may include at least one selected from the group consisting of an inorganic flame retardant, an inorganic heat stabilizer, an inorganic colorant, an inorganic pigment, a non-conductive metal oxide, and a non-conductive metal compound.

The inorganic additive may be in the form of an inorganic powder.

In one example, the non-conductive metal oxide may include one or more metals and may be one which releases at least one metal or its ions by irradiation with electromagnetic waves, and the non-conductive metal compound may be one or more metals Or an inorganic non-conductive metal compound including a non-metal, and the composite compound containing at least one metal may be one which releases at least one metal or its ion by electromagnetic wave irradiation.

In yet another example, when the non-conductive metal oxide or non-conductive metal compound comprises one or more metals, the step of synthesizing the inorganic additive comprises mixing and mixing the first metal precursor and the second metal precursor, And forming the non-conductive metal oxide or non-conductive metal compound including the first and second metals by heat treatment.

The step of preparing the thermoplastic resin composition may further comprise at least one functional group selected from the group consisting of a releasing agent, an antistatic agent, a flame retardant, an antioxidant, a pigment, a lubricant, a UV stabilizer, a heat stabilizer, and an impact modifier in addition to the inorganic additive and the thermoplastic resin. A method in which an additive is further added and mixed can be used.

According to still another example, the step of preparing the thermoplastic resin composition may include mixing the inorganic additive and the thermoplastic resin, and extruding the mixture into a pellet, powder, or chip state.

Further, the molding step may include a step of forming the thermoplastic resin molded article containing the inorganic additive by injection molding the thermoplastic resin composition.

In another method of producing a thermoplastic resin molded article, the thermoplastic resin is selected from the group consisting of an acrylonitrile-butadiene-styrene (ABS) resin, a polyalkylene terephthalate resin, a polycarbonate resin, a polyolefin resin and a polyphthalamide resin (SEBS) resin, styrene-isoprene-styrene (SIS) resin, styrene-ethylene ethylene propylene-styrene (SEBS) resin, (SEEPS) resin, and the like.

On the other hand, the present invention provides an apparatus for producing the above-mentioned thermoplastic resin molded article. Such a manufacturing apparatus comprises an inorganic additive synthesis section for synthesizing an inorganic additive from an inorganic additive precursor; A mixing section for mixing the inorganic additive supplied from the inorganic additive synthesis section with a thermoplastic resin to form a thermoplastic resin composition; And a molding unit for molding the composition supplied from the mixing unit, wherein the combining unit, the mixing unit, and the molding unit are sequentially connected so that the process can be continuously performed.

The apparatus for producing a thermoplastic resin molded article may further comprise: a first supply section for supplying the inorganic additive precursor to the inorganic additive synthesis section; And a second supply unit for supplying the inorganic additive and the thermoplastic resin to the mixing unit, respectively.

The second supply unit may include an inorganic additive supply unit for supplying the inorganic additive produced by the inorganic additive synthesis unit; A resin supply unit for supplying the thermoplastic resin; And a functional additive supplier for supplying at least one functional additive selected from the group consisting of a releasing agent, an antistatic agent, a flame retardant, an antioxidant, a pigment, a lubricant, a UV stabilizer, a heat stabilizer and an impact modifier.

According to one example, the mixing portion may include an extruder for mixing and extruding an inorganic additive, a thermoplastic resin, and a functional additive.

According to another example, the mixing portion may further include an agglomerator for processing the composition into a pellet or a chip state.

The inorganic additive synthesis unit may be in the form of a rotary kiln or a spray pyrolysis apparatus for synthesizing an inorganic additive by mixing and heat-treating an inorganic additive precursor.

According to the present invention, it is possible to synthesize an inorganic additive, and to produce a resin composition containing the inorganic additive in the form of pellets, powder, chips, and the like, and then melt- , And a thermoplastic resin molded article manufacturing method and apparatus capable of producing a thermoplastic resin molded article containing various kinds of inorganic additives can be provided.

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a schematic view of an apparatus for producing a thermoplastic resin molded article according to an embodiment of the present invention. FIG.
2 is a schematic view of a spray pyrolysis furnace that can be included in an apparatus for producing a thermoplastic resin molded article according to an embodiment of the present invention.

In the present invention, the terms first, second, etc. are used to describe various components, and the terms are used only for the purpose of distinguishing one component from another.

The terminology used herein is for the purpose of describing exemplary embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprising," "comprising," or "having ", and the like are intended to specify the presence of stated features, But do not preclude the presence or addition of one or more other features, integers, steps, components, or combinations thereof.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

According to one embodiment of the invention, there is provided a process for preparing a catalyst composition comprising the steps of: synthesizing an inorganic additive from an inorganic additive precursor; Preparing a thermoplastic resin composition by mixing the synthesized inorganic additive and a thermoplastic resin; And molding the thermoplastic resin composition, wherein the step of synthesizing or molding the inorganic additive continues in a single apparatus.

Conventionally, in the production of a thermoplastic resin molded article, a thermoplastic resin is processed and stored in such a form that it can be stored easily such as pellets, and the above inorganic additive is synthesized through a separate process and apparatus, Since the processed thermoplastic resin is melted and kneaded with the separately prepared inorganic additive and the molded product is produced through a non-continuous process through a molding process such as an injection process, the manufacturing process is complicated, mass production is difficult, However, according to the embodiment of the present invention, unnecessary processes can be reduced through a series of continuous processes, and a molded article can be manufactured simply and easily, Can be shortened, and the manufacturing efficiency can be increased.

According to an embodiment of the present invention, the inorganic additive generally used for thermoplastic resin processing in the technical field of the present invention can be used without any particular limitation, and in particular, inorganic additives such as metal oxides or non-metal oxides, Specifically, for example, an inorganic flame retardant, an inorganic heat stabilizer, an inorganic colorant, an inorganic pigment, a non-conductive metal oxide, or a non-conductive metal compound may be used alone or in combination of two or more.

The inorganic flame retardant is a substance added to improve the combustibility of a molded article to be produced. Specifically, for example, aluminum oxide, magnesium oxide, zirconium oxide, aluminum silicate or magnesium silicate may be used alone or in combination However, the present invention is not limited thereto.

The inorganic heat stabilizer is added to improve the high-temperature stability of the molded article to be produced. For example, a phosphite-based stabilizer or an aluminosilicate-based stabilizer may be used alone or in combination of two or more. The invention is not limited thereto.

The non-conductive metal oxide not only exhibits non-conductivity before irradiation with an electromagnetic wave of a specific wavelength but also has excellent compatibility with the thermoplastic resin. However, when an electromagnetic wave of a specific wavelength is irradiated after being made into a molded product, To release the metal or its ions contained in the thermoplastic resin to help form the conductive pattern on the thermoplastic resin. The non-conductive metal oxide may include at least one kind of metal and may be one which releases at least one kind of metal or its ions by electromagnetic wave irradiation. Specifically, for example, Cu, Ag, Pd At least one metal selected from the group consisting of Au, Pt, Ni and Sn, and at least one metal selected from the group consisting of Mn, Al, Cr, Fe, Mo and W as the second metal, But the present invention is not limited thereto. The present invention is also applicable to a non-conductive resin composition which is contained in a thermoplastic resin molded article and which can form a conductive pattern on a thermoplastic resin due to electromagnetic wave irradiation of a specific wavelength, The metal oxide may be used without any particular limitation.

[Chemical Formula 1]

AxByXz

In Formula 1, A and B each independently represent a first metal and a second metal, X represents oxygen, nitrogen, or sulfur, and x, y, and z are each independently an integer of 1 to 10.

Also, the non-conductive metal compound may be an inorganic non-conductive metal compound containing at least one metal or a non-metal, and a non-conductive metal compound containing at least one metal may exhibit non-conductive properties before electromagnetic wave irradiation of a specific wavelength, However, when an electromagnetic wave of a specific wavelength such as a laser is irradiated after being made into a molded product, at least one kind of metal or its ion is emitted to form a conductive pattern on the thermoplastic resin. It may be to help form. The non-conductive metal compound includes at least one metal selected from the group consisting of Cu, Ag, Pd, Au, Pt, Ni, Sn, Zr, , O, P, and S, and may be represented by the following formula (2), but the present invention is not limited thereto. The thermoplastic resin composition may be thermoplastic resin The non-conductive metal compound capable of forming the conductive pattern on the resin can be used without any particular limitation.

(2)

DtEuPvXw

Wherein D and E are each independently a metal selected from the group consisting of Cu, Ag, Pd, Au, Pt, Ni, Sn, Zr, Zn and Sr, P is phosphorus, X is oxygen, And t, u, v, and w are each independently an integer of 0 to 20.

Specific examples of the non-conductive metal compound or the non-conductive metal compound represented by Formula 2 include Sn ₂ P ₂ O ₇ , CuSn ₂ P ₃ O ₁₂ [CuSn ₂ (PO ₄ ) ₃ ], CuZr ₂ P ₃ O ₁₂ [CuZr ₂ (PO ₄ ) ₃ ], CuZnP ₂ O ₇ , and CuSrP ₂ O ₇ , but the present invention is not limited thereto.

In the method for producing a thermoplastic resin molded article according to the embodiment of the present invention, the method of synthesizing the inorganic additive from the inorganic additive precursor may be varied depending on the kind of the desired inorganic additive. For example, The precursor of the inorganic additive is introduced into a reactor such as a rotary kiln or a spray pyrolysis apparatus and the rotary furnace is heated while being rotated or sprayed to form a spherical powder form precursor from the inorganic additive precursor May be to synthesize inorganic additives. The form of the inorganic additive and the form of the inorganic additive are not particularly limited, but when the form of the inorganic additive is a spherical powder, mixing with the inorganic additive and the thermoplastic resin may be uniformly performed, When a spray pyrolysis furnace is used, an inorganic additive in the form of a spherical powder can be easily produced.

Specifically, for example, when the inorganic additive is a non-conductive metal complex oxide as described above, the first metal and at least one metal selected from the group consisting of Cu, Ag, Pd, Au, Pt, , Precursor particles of a second metal selected from the group consisting of Al, Cr, Fe, Mo and W are introduced into the reactor such as the rotary furnace or the spray pyrolysis furnace, , Sprayed into a heated spray pyrolysis furnace, and mixed and heat-treated to synthesize the compound represented by the formula (1) as a spherical powder.

When the inorganic additive is a non-conductive metal compound as described above, a precursor of at least one metal selected from the group consisting of Cu, Ag, Pd, Au, Pt, Ni, Sn, Zr, The particles are introduced into a reactor such as the rotary furnace or spray pyrolysis furnace, the rotary furnace is heated and rotated, or sprayed into a heated spray pyrolysis furnace, followed by mixing and heat treatment to obtain a compound represented by the above formula It can be synthesized in spherical powder form.

Accordingly, when the non-conductive metal oxide or the non-conductive metal compound is used as the inorganic additive, the conductive pattern may be formed by irradiating electromagnetic waves to a certain region of the thermoplastic resin molded article produced by the manufacturing method, The electromagnetic wave may vary depending on the metal composition of the non-conductive metal oxide or the non-conductive metal compound.

The step of preparing the thermoplastic resin composition may further comprise at least one functional group selected from the group consisting of a releasing agent, an antistatic agent, a flame retardant, an antioxidant, a pigment, a lubricant, a UV stabilizer, a heat stabilizer, and an impact modifier in addition to the inorganic additive and the thermoplastic resin. Further additives may be added and mixed.

The releasing agent is added to facilitate separation of a mold and a molded product during the production of a molded product, and examples thereof include a fluorine-containing polymer, a silicone oil, a stearic acid metal salt, or a montanic acid metal salt But the present invention is not limited thereto.

The antistatic agent is added to prevent a static electrification phenomenon in a molded article to be produced, and it is possible to use a general antistatic agent used for a thermoplastic resin. Specific examples thereof include cationic antistatic agents such as quaternary ammonium salts; Anionic antistatic agents such as sulfonates or phosphates; And betaine may be used singly or in combination of two or more, but the present invention is not limited thereto.

The flame retardant is a flame retardant which is difficult to synthesize by the step of synthesizing the inorganic additive of the present invention among the substances added for improving the combustibility of the molded article, for example, aluminum hydroxide, magnesium hydroxide, zirconium hydroxide, calcium hydroxide, barium hydroxide, Or magnesium carbonate may be used as a separate functional additive.

The lubricant is added to improve fluidity by lubricating a metal surface in contact with the resin composition during processing or molding of the thermoplastic resin composition. For example, a lubricant such as a stearic acid metal salt lubricant may be used. But is not limited thereto.

In addition, various additives may be used to add physical properties required for a thermoplastic resin molded article to be produced, such as a colorant and an inorganic filler, which can be generally added to thermoplastic resin processing. Specific examples of such additives include calcium carbonate, Talc, clay, silica, mica, titanium dioxide, carbon black, graphite and the like can be used, but the additives of the present invention are not limited thereto.

Meanwhile, in the method for producing a thermoplastic resin molded article according to an embodiment of the present invention, the thermoplastic resin may be at least one selected from the group consisting of an ABS resin, a polyalkylene terephthalate resin, a polycarbonate resin, a polyolefin resin and a polyphthalamide resin (SEBS) resin, a styrene-isoprene-styrene (SIS) resin, a styrene-ethylene butylene-styrene (SEBS) resin, a styrene- ) Resin may be used. Depending on the properties of the thermoplastic resin molded article to be produced, one or more kinds of resins having appropriate physical properties can be selected.

In the method for producing a thermoplastic resin molded article according to an embodiment of the present invention, the mixing method is not particularly limited in the step of mixing the synthesized inorganic additive and the thermoplastic resin to prepare the thermoplastic resin composition. For example, The inorganic additive and the thermoplastic resin are heated, melted, mixed, and extruded into a strand shape through an extrusion screw or the like, and then processed into a form of a resin composition pellet, a resin composition powder, a resin composition chip or the like can do.

Thus, the resin composition may be processed, for example, in the form of a pellet, powder, or chip-form resin composition. The resin composition extruded in a strand form or the like may be subjected to cutting or grinding to form pellets, It may be desirable to further perform a cooling process to cool and cure to an appropriate temperature prior to fabrication in chip form. A resin composition powder, a resin composition chip, or the like having a predetermined size and shape through a cutting or grinding process in a cured state.

The thermoplastic resin molded article can be produced through the step of melting the processed resin composition product obtained above and then molding it. For example, the forming step may include a step of injection-molding the thermoplastic resin composition to form a thermoplastic resin molded article containing an inorganic additive, and the forming method in the forming step is not limited to the above- A commonly used thermoplastic resin molding method can be used without any particular limitation. Specifically, molding methods such as compression molding, extrusion molding, injection molding, and blow molding can be used.

According to another embodiment of the present invention, there is provided an inorganic additive synthesis unit for synthesizing an inorganic additive from an inorganic additive precursor; A mixing section for mixing the inorganic additive supplied from the inorganic additive synthesis section with a thermoplastic resin to form a thermoplastic resin composition; And a molding part for molding the composition supplied from the mixing part, wherein the combining part, the mixing part and the molding part are sequentially connected so that the process can be continuously performed.

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a schematic view of an apparatus for producing a thermoplastic resin molded article according to an embodiment of the present invention. FIG.

Referring to FIG. 1, the apparatus for manufacturing a thermoplastic resin article includes an inorganic additive synthesis unit 200 for synthesizing an inorganic additive from an inorganic additive precursor; A mixing unit 400 for mixing the inorganic additive supplied from the inorganic additive synthesis unit 200 with a thermoplastic resin to form a thermoplastic resin composition; And a molding unit 600 for molding the composition supplied from the mixing unit 400. The combining unit 200, the mixing unit 400, and the molding unit 600 are sequentially It is connected.

According to an example, the thermoplastic resin molded article manufacturing apparatus includes a first supply unit 100 for supplying an inorganic additive precursor to the inorganic additive synthesis unit 200; And a second supply unit 300 for supplying the inorganic additive and the thermoplastic resin to the mixing unit, respectively.

According to another embodiment of the present invention, the second supply unit 300 includes an inorganic additive supply unit 310 for supplying the inorganic additive manufactured by the inorganic additive synthesis unit 200; A resin supply unit 320 for supplying the thermoplastic resin; And a functional additive supplier 330 for supplying at least one functional additive selected from the group consisting of a releasing agent, an antistatic agent, an antioxidant, a pigment, a flame retardant, a lubricant, a UV stabilizer, a heat stabilizer and an impact modifier.

The mixing unit 400 may include an extruder 401 for mixing and extruding an inorganic additive and a thermoplastic resin.

According to another example, the mixing part 400 may further include an assembler 500 for processing the composition into a pellet, powder, or chip form.

The inorganic additive synthesizer 200 may be in the form of a rotary kiln or a spray pyrolysis apparatus for synthesizing an inorganic additive by mixing and heat-treating an inorganic additive precursor.

2 is a schematic view of a spray pyrolysis furnace which is an example of an inorganic additive synthesis part that can be included in an apparatus for producing a thermoplastic resin molded article according to an embodiment of the present invention.

2, when the spray pyrolysis furnace is used as the inorganic additive synthesis part 200, the inorganic additive synthesis part 200 includes an atomizer 202 for spraying the inorganic additive precursor into the spray pyrolysis furnace, The first supply part 100 for supplying the inorganic additive precursor to the inorganic additive synthesis part 200 may include an inorganic additive precursor for supplying the inorganic additive precursor to the sprayer 202, A precursor supply pump 110 may be further included.

The processes carried out in each part of the thermoplastic resin molded article production apparatus are as follows.

First, the inorganic additive precursor 1 is supplied from the first supply part 100 to the inorganic additive synthesis part 200. The supplied inorganic additive precursor 1 is synthesized with an inorganic additive 2 through heat treatment or the like in an inorganic additive synthesis unit 200 in the form of a rotary kiln or a spray pyrolysis apparatus, And may be synthesized preferably as an inorganic additive in powder form. The inorganic additive precursor (1) may vary depending on the type of the inorganic additive to be used. The inorganic additive precursor (1), the inorganic additive (2) and the method for producing the same are the same as those described in the thermoplastic resin molded article production method same.

The manufactured inorganic additive 2 may be transferred to the second supply unit 300 through the inorganic additive supply unit 310. At the same time, the thermoplastic resin may be supplied to the second supply part 300 through the resin supply part 320, and if necessary, the functional additive may be separately supplied through the functional additive supply part 330.

By this method, a mixture in which the inorganic additive, the thermoplastic resin, and the functional additive are mixed is supplied to the mixing portion 400 through the second supply portion 300

The mixture may be melted and mixed in the mixing part 400 to be made of the thermoplastic resin composition 3 in a uniform state. The mixing method is not particularly limited. For example, it is preferable to use a twin-screw extruder 401 or the like while heating the mixing part 400 to form a uniform resin composition and to form a resin composition strand .

The thermoplastic resin composition 3 may be transferred from the mixing part 400 to the granulator 500 and processed into a resin composition pellet, a resin composition powder, a resin composition chip, or the like. That is, in the assembling machine 500, the process of manufacturing the resin composition processed product 4 such as the resin composition pellet, the resin composition powder, or the resin composition chip by processing the thermoplastic resin composition 3 transferred from the mixing part 400 It proceeds. The granulator 500 may be, for example, a cutting tool such as a pelletizer or a pulverizer, but the present invention is not limited thereto.

The pelletizer 500 may further include a cooler for cooling the thermoplastic resin composition delivered from the mixing part 400 and may be cooled before being cut or crushed in the form of a resin composition pellet, a resin composition powder, a resin composition chip, And then cooled and cured while passing through the cooler.

The processed resin composition product 4 in the form of a pellet or the like manufactured by the pelletizer 500 is transferred to the molding unit 600 through the third supply unit 610 and is manufactured as a thermoplastic resin molded product 5 through melting and molding processes . The forming part 600 may have various shapes depending on the molding method, for example, a compressor, an extruder, an injection molding machine, or the like, preferably an injection molding machine.

When the molding part 600 is an extruder or an injection molding machine, the molding part may include an injection screw 601, and the resin composition product 4 is melted in a molding part including such a screw, ), Separated from the mold after cooling, and can be produced in the form of a molded article (5).

The matters related to the thermoplastic resin, the inorganic additive, the functional additive, the production method, and the like as described above are as described above in the production method of the thermoplastic resin molded article.

1: Inorganic additive precursor
2: Inorganic additive
3: thermoplastic resin composition
4: Finished product of resin composition
5: thermoplastic resin molded article
100:
110: Inorganic additive precursor feed pump
200: Inorganic additive synthesis part
201: Electric furnace
202: atomizer
300:
310: Inorganic additive supplier
320: resin supply part
330: functional additive supplier
400: mixing part
401: extruder
500: Assembly machine
600: forming part
601: Injection screw
610:
620: Mold

Claims (16)

Synthesizing an inorganic additive from an inorganic additive precursor;
Preparing a thermoplastic resin composition by mixing the synthesized inorganic additive and a thermoplastic resin; And
And molding the thermoplastic resin composition,
Wherein the step of synthesizing or molding the inorganic additive continues in a single apparatus.
The method according to claim 1,
Wherein the inorganic additive comprises at least one member selected from the group consisting of an inorganic flame retardant, an inorganic heat stabilizer, an inorganic colorant, an inorganic pigment, a non-conductive metal oxide, and a non-conductive metal compound.
3. The method of claim 2,
Wherein the inorganic additive is in powder form.
3. The method of claim 2,
Wherein the non-conductive metal oxide contains at least one metal and releases at least one kind of metal or its ions by electromagnetic wave irradiation.
3. The method of claim 2,
The non-conductive metal compound is an inorganic non-conductive metal compound containing at least one metal or a non-
Wherein the non-conductive metal compound containing at least one kind of metal releases at least one kind of metal or its ions by irradiation of electromagnetic waves.
The method according to claim 4 or 5,
The step of synthesizing the inorganic additive may include mixing and heat-treating the first metal precursor and the second metal precursor to form a non-conductive metal oxide or non-conductive metal compound including the first and second metals, Way.
The method according to claim 1,
Wherein the step of preparing the thermoplastic resin composition comprises adding at least one functional additive selected from the group consisting of a releasing agent, an antistatic agent, a flame retardant, an antioxidant, a pigment, a lubricant, a UV stabilizer, a heat stabilizer and an impact modifier to the inorganic additive and the thermoplastic resin And further mixing the resultant mixture.
The method according to claim 1,
Wherein the step of preparing the thermoplastic resin composition comprises mixing the inorganic additive and the thermoplastic resin, and extruding the mixture into pellets, powder, or chips.
The method for producing a thermoplastic resin molded article according to claim 1, wherein the forming step comprises injection molding the thermoplastic resin composition to form a thermoplastic resin molded article containing an inorganic additive.
The method according to claim 1,
Wherein the thermoplastic resin is at least one selected from the group consisting of an acrylonitrile-butadiene-styrene (ABS) resin, a polyalkylene terephthalate resin, a polycarbonate resin, a polyolefin resin and a polyphthalamide resin .
An inorganic additive composition for synthesizing an inorganic additive from an inorganic additive precursor;
A mixing section for mixing the inorganic additive supplied from the inorganic additive synthesis section with a thermoplastic resin to form a thermoplastic resin composition; And
And a molding part for molding the composition supplied from the mixing part,
Wherein the combining section, the mixing section, and the molding section are sequentially connected so that the process can proceed continuously.
12. The method of claim 11,
A first supply section for supplying the inorganic additive precursor to the inorganic additive synthesis section; And
Further comprising a second supply portion for supplying the inorganic additive and the thermoplastic resin to the mixing portion, respectively.
13. The method of claim 12,
Wherein the second supply unit comprises: an inorganic additive supply unit for supplying the inorganic additive produced by the inorganic additive synthesis unit;
A resin supply unit for supplying the thermoplastic resin; And
And a functional additive supplier for supplying at least one functional additive selected from the group consisting of an antistatic agent, a releasing agent, an antistatic agent, a flame retardant, an antioxidant, a pigment, a lubricant, a UV stabilizer, a heat stabilizer and an impact modifier.
12. The method of claim 11,
Wherein the mixing portion includes an extruder for mixing and extruding an inorganic additive, a thermoplastic resin, and a functional additive.
12. The method of claim 11,
Wherein the mixing unit further comprises a pelletizer for processing the composition into a pellet or chip form.
12. The method of claim 11,
The inorganic additive synthesis unit is a rotary kiln or a spray pyrolysis apparatus in which an inorganic additive is synthesized by heat treating an inorganic additive precursor.

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