KR101548048B1 - Method for manufacturing resin composition comprising engineering plastics and/or thermoplastic elastomer and/or recylce plastics - Google Patents
Method for manufacturing resin composition comprising engineering plastics and/or thermoplastic elastomer and/or recylce plastics Download PDFInfo
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Abstract
The present invention relates to a method for producing a synthetic resin composition comprising a component composed of one or more of engineering plastic, thermoplastic elastomer or recycled plastic, and more particularly to a method for producing a synthetic resin composition comprising an engineering plastic, a thermoplastic elastomer or a recycled plastic A hardener, an EVA sponge, a cloth, and the like, which are composed of one or more components mixed with each other, impact modifiers, compatibilizers, lubricants and antioxidants, , It is possible to reduce the gloss (requirement of the company), to have an elastic restoring force, and to have an arch type structure of the sole with no permanent deformation, so that it is possible to reduce the impact upon walking and the shape of the wrong foot Correctable engineering plastics, thermoplastic elastomers or rehabilitation A method of manufacturing a synthetic resin composition comprising a component configured to intermix the plastic which of one or two or more.
Description
The present invention relates to a method for producing a synthetic resin composition comprising a component composed of one or more of engineering plastic, thermoplastic elastomer or recycled plastic, and more particularly to a method for producing a synthetic resin composition comprising an engineering plastic, a thermoplastic elastomer or a recycled plastic A hardener, an EVA sponge, a cloth, and the like, which are composed of one or more components mixed with each other, impact modifiers, compatibilizers, lubricants and antioxidants, , It is possible to reduce the gloss (requirement of the company), to have an elastic restoring force, and to have an arch type structure of the sole with no permanent deformation, so that it is possible to reduce the impact upon walking and the shape of the wrong foot Correctable engineering plastics, thermoplastic elastomers or rehabilitation A method of manufacturing a synthetic resin composition comprising a component configured to intermix the plastic which of one or two or more.
The sole of a shoe is divided into an outsole, a middlesole, and an insole,
Outsole (Outsole) is a part that touches the ground. It plays a role to prevent slip and to provide a sense of stability according to the pattern during walking and exercise,
The midsole is sandwiched between the insole and the outsole, absorbing and dispersing the impact on the foot during walking and running,
The insole (insole or insole) is in contact with the foot directly on the inner bottom of the shoe. It is a detachable part that prevents foot fatigue and eliminates athlete's foot and smell caused by sweat.
Since the outsole is the part that touches the ground, durability and abrasion resistance are important. The midsole is the part that gives the cushion function of the shoe. It is applied between the bottom and the inside of the shoe while applying various kinds of cushions (air, gel, etc.) In addition, the stability of the foot.
An insole (called insole or insole, hereinafter referred to as an insole) is selected according to the shape and movement of the foot while giving stability to the foot. It is an elastic material capable of supporting the arch portion with the shape of an arched structure, There is.
In particular, insole requires various functions such as hardness, resilience and resilience, which have the degree of hardness to suit the required use. For this reason, sports athletes often make customized insole, and the insole has an important function so that the insole price is higher than the shoe price itself.
Therefore, research and development have been conducted in the field of foams for footwear which is flexible and cushiony, and in relation to this, patent publication No. 10-2012-0117514, titled "Foam composition for insole having excellent shape- "
However, development of a rigid but resilient rigid insole is not sufficient, and research and development are carried out using styrene-ethylene-butylene-styrene copolymers (SEBS) in thermoplastic engineering plastics, (Blend / Alloy) material having physical properties satisfying all properties such as flexibility, resilience, elasticity and adhesiveness.
Therefore, foreign raw materials are used to impart functions such as hardness, elasticity, resilience, and adhesiveness, and it is not only high in price due to relying on imports, but also does not satisfy all of hardness, resilience, elasticity and adhesiveness Still remains a problem.
In the industrial environment of mass production, mass consumption and mass disposal of plastic as in the present, recycled waste plastics are mixed with plastic blends (Blend / Alloy) that satisfy both hardness, resilience, ) If the material is developed, it will be fine.
Therefore, the present invention provides an adhesive composition which can replace expensive raw materials for import, has a function superior to that of the raw materials to be used, can adjust the hardness according to the applied products, has excellent elasticity, excellent resilience, provides adhesion with EVA sponge or cloth, (Blend / Alloy) material capable of reducing the gloss according to the method of the present invention, which comprises a component constituted by mixing one or more of engineering plastic, thermoplastic elastomer or recycled plastic with each other .
In addition, it is possible to expand the application range not only in the shoe field but also in the industrial material by utilizing the characteristics satisfying all of the hardness, elasticity, resilience and adhesiveness as described above, Another object of the present invention is to provide a method of manufacturing a synthetic resin composition comprising a component composed of a blend / alloy material and one or more of engineering plastic, thermoplastic elastomer or recycled plastic.
In order to achieve the above object,
The synthetic resin composition comprising a component composed of one or more of engineering plastic, thermoplastic elastomer or recycled plastic according to the present invention may be prepared by mixing one or more of engineering plastic, thermoplastic elastomer or recycled plastic with each other The constituent components, the impact modifier, the compatibilizer, the lubricant, and the antioxidant.
The engineering plastics, thermoplastic elastomers or recycle plastics used in the present invention may be composed solely of engineering plastics, thermoplastic elastomers or recycled plastics, or a mixture of two or more thereof.
A method for producing a synthetic resin composition comprising a component composed of one or more of engineering plastic, thermoplastic elastomer, or recycled plastic according to the present invention,
20 to 60% by weight of a component composed of one or more of engineering plastic, thermoplastic elastomer or recycled plastic, 30 to 70% by weight of an impact modifier, 5 to 30% by weight of a compatibilizer, 0.1 to 5% And 0.05 to 5% by weight of an antioxidant;
A heating and extraction step of heating the mixture to a temperature of 230 to 260 DEG C and extracting it with an extruder;
A pellet step of forming the extracted extract into pellets;
And drying the pellet at 80 to 120 DEG C for 2 to 4 hours.
In the present invention, the shape of the pellet may have various shapes such as a sphere, a cylinder, and a hexahedron. The size of the pellet is 2 to 5 mm in the case of a spherical or cylindrical cylinder, and 2 to 5 mm in a case of a cube. It is convenient size and shape.
As described above, it is possible to substitute for the dependency on imports due to the development of materials having properties satisfying the hardness, elasticity, resilience and adhesiveness, and it is possible to lower the production cost and improve the product quality, And it also has the effect of naturally developing industrial technology owing to material development.
In addition, by applying the above-mentioned characteristic material to the whole industry, price competitiveness can be increased in other fields and the effect of improving the technology can be expected.
And, in the industrial environment of mass production, mass consumption and mass disposal as in the present, there is a limit to the depletion of major natural resources and the acceptance of waste disposal, the transfer of usable resources and pleasant environment to the next generation, Recycling of waste is emphasized.
Therefore, by using the recycled plastic as in the present invention, it is possible to expect not only environmental pollution reduction but also economic benefits.
FIG. 1 is a block diagram illustrating a method of manufacturing a synthetic resin composition including components composed of one or more of engineering plastic, thermoplastic elastomer, or recycled plastic according to an embodiment of the present invention.
Fig. 2 is a perspective view showing an insole made by a method of manufacturing a synthetic resin composition comprising a component constituted by mixing one or more of engineering plastic, thermoplastic elastomer or recycled plastic according to the embodiment (1) or (2) It is a sample photograph.
Hereinafter, with reference to the drawings, a method of manufacturing a synthetic resin composition including components composed of one or more of engineering plastic, thermoplastic elastomer or recycled plastic according to an embodiment of the present invention is described.
First, only parts necessary for understanding the technical structure of the present invention will be described, and description of other parts will be omitted so as not to disturb the gist of the present invention.
FIG. 1 is a block diagram illustrating a method of manufacturing a synthetic resin composition including components composed of one or more of engineering plastic, thermoplastic elastomer, or recycled plastic according to an embodiment of the present invention.
The method for producing a composition according to an embodiment of the present invention comprises 20 to 60% by weight of a component composed of one or more of engineering plastic, thermoplastic elastomer or recycled plastic, 30 to 70% by weight of an impact modifier, (S10) for forming a mixture comprising 5 to 30% by weight of a lubricant, 0.1 to 5% by weight of a lubricant and 0.05 to 5% by weight of an antioxidant; Heating and extracting the mixture at a temperature of 230 to 260 ° C and extracting the mixture by an extruder (S20); A pellet step (S30) of forming the extracted extract into pellets; And drying the pellet at 80 to 120 DEG C for 2 to 4 hours (S40).
In the present invention, the pellets may have various shapes such as a sphere, a cylinder, a hexahedron, and the like. The size of the pellet is 2 to 5 mm in the case of a sphere or a cylinder, and 2 to 5 mm in a case of a cube.
Example (1)
An embodiment of the method for producing the composition according to the present invention is as follows.
First, 20 to 60 wt% of engineering plastic, 30 to 70 wt% of impact modifier, 5 to 30 wt% of compatibilizer, 0.1 to 5 wt% of lubricant, and 0.05 to 5 wt% of antioxidant are premixed with a super mixer, Extruded by an extruder at 260 ° C to form pellets and drying the pellets at 80 to 120 ° C for 2 to 4 hours.
Examples of the composition ratio of the specific composition of the present invention include 35% by weight of polyamide (PA6) as an engineering plastic, 55% by weight of an ionomer as an impact modifier, glycidyl methacrylate kraft ethylene methyl acrylate (EMA 9.5% by weight of an antioxidant, 0.3% by weight of zinc-stearate as a lubricant, and 0.2% by weight of phenol-based Irganox 1010 as an antioxidant.
Example (2)
Another embodiment of the method for producing the composition according to the present invention is as follows.
First, 20 to 60% by weight of recycled plastic, 30 to 70% by weight of an impact modifier, 5 to 30% by weight of a compatibilizer, 0.1 to 5% by weight of a lubricant and 0.05 to 5% by weight of an antioxidant are premixed with a super mixer, Extruded by an extruder at 260 ° C to form pellets and drying the pellets at 80 to 120 ° C for 2 to 4 hours.
Examples of the composition ratio of the specific composition of the present invention include 35 wt% of recycled polyamide (PA6) as recycled plastic, 55 wt% of ionomer as impact modifier, glycidyl methacrylate kraft ethylene methyl acrylate 9.5% by weight of EMA-g-GMA, 0.3% by weight of zinc stearate and 0.2% by weight of phenol-based Irganox 1010 as an antioxidant.
Fig. 2 is a perspective view showing an insole made by a method of manufacturing a synthetic resin composition comprising a component constituted by mixing one or more of engineering plastic, thermoplastic elastomer or recycled plastic according to the embodiment (1) or (2) It is a sample photograph.
Hereinafter, the characteristics of the insole manufactured by using the method of manufacturing the composition according to the present invention shown in FIG. 2 and the existing products are compared with each other.
For this purpose, the present inventors measured hardness, adhesiveness, flexural modulus, recycling, economical efficiency, and wearing comfort in order to compare the characteristics of the insole manufactured using the method of the present invention with the conventional products.
In addition, the insole of Example (1) and the insole of Example (2) prepared using the method of the present invention were tested and compared with the existing products, and the results are summarized in Table 1.
㉮ Hardness: Shore durometer type, measured according to ASTM 0 2240.
㉯ Adhesiveness: Adhesive is applied to the insole and EVA sponge at the same time.
The measuring instrument is a universal testing machine (UTM). The measurement method is ASTM D903 (Peel or stripping strength of adhesive bonds). Peel strength is 5 kgf or more.
㉰ Flexural modulus: Measured according to ASTM D790 using a universal testing machine (UTM).
㉱ Recycling and Economics: A comparative analysis of recyclability and economic efficiency (manufacturing cost) using waste plastics.
Recyclability = Recycled OR New raw material, Economical (Manufacturing cost) = Low OR or High.
㉲ Wearing comfort: To make a complete shoe using the above insole and to test the fit, it is composed of 10 persons with a weight of 65 ~ 75 ㎏ and is worn for 1 day (24 hours).
1 = very good, 2 = good, 3 = bad.
<Footnotes>
Comparative Example 1: A thermoplastic polyester (imported product) was used.
Comparative Example 2: A thermoplastic polyether block amide (imported product) was used.
As can be seen from above, when the mutual comparison of the insole are manufactured using a method of manufacturing a composition according to an embodiment of the present invention and characteristics of the existing other products, the embodiment produced using the production method of the composition according to the invention The insole of Example (1) and the insole of Example (2) had similar functions in terms of hardness, adhesiveness and flexural modulus, and the manufacturing cost was low and the fit was very good. As a result, it is possible to substitute high-priced imported raw materials sufficiently and it will help not only to improve production technology but also to reduce production cost in the related field.
The terms used in the specification of the present invention are as follows.
Engineering Plastics is engineering plastics or ENPLA, which is a high strength plastic which has heat resistance of 100 to 150 degrees and is used for industrial materials such as mechanical parts and structural materials.
Thermoplastic Elastomer is a polymer material that combines the elasticity of rubber and the plasticity of plastic. It has plasticity at high temperature, which is advantageous in molding process. It is used as a material for parts of automobile parts, home appliances and other various equipments. .
Waste plastic refers to solid waste plastic associated with synthetic polymer compounds such as synthetic resin debris, synthetic fiber debris, and synthetic rubber debris.
Recycle Plastics refers to plastics that can be reused as raw materials after a certain process by selecting waste plastics.
<About Engineering Plastics>
The purpose of using engineering plastics in the present invention is to use mechanical properties such as strength, hardness, elasticity, resilience, and impact resistance.
Polyamide (PA6, PA66, PA11, PA12, etc.), polyester (PET, PBT, etc.) or polystyrene (ABS, etc.) can be used as engineering plastics in the present invention.
< To the thermoplastic elastomer About>
The purpose of using the thermoplastic elastomer in the present invention is to utilize the properties such as strength, hardness, elasticity, and resilience. The thermoplastic elastomer is characterized in that the strength and elasticity of the plastic, which combines a hard segment having excellent elasticity and a soft segment And elasticity and full-strength reinforcement.
Examples of the thermoplastic elastomer usable in the present invention include urethane-based, ester-based or amide-based elastomers.
The urethane-based elastomer is a soft segment in which (1) an ester-based, (2) ether-based, or (3) caprolactone-based polyol can be used, and a hard segment copolymerized with an isocyanate compound is used.
(1) an ester-based polyol is a polyol having a structure of poly (3-methylpentyl adipate), poly (1,4-butylene adipate), poly (ethylene adipate) (Hexane-butylene adipate), poly (1,6-hexylene adipate), and the like.
(2) As the ether polyol, there are poly ethylene glycol (PEG), polypropylene glycol (PPG), polytetramethylene ether glycol (PTM (E) G) and the like.
③ Caprolactone polyol such as polycaprolactone (PCL).
The hard segment, ④ isocyanate, is aromatic, aliphatic isocyanate, and so on.
That is, it is preferable to use a polyisocyanate such as methylene diphenyl diisocyanate, 2,4-toluene diisocyanate, naphthalene diisocyanate, xylene diisocyanate, isophorone diisocyanate, paraphenylene diisocyanate, 3,3'-toluene- 1,4-cyclohexane diisocyanate, 2,4,4-trimethylhexamethylene diisocyanate, 1,6-hexamethylene diisocyanate, and methylene-bis (4-cyclohexyl isocyanate).
The ester-based elastomer
Aromatic 1) a hard segment prepared by polymerizing at least one dicarboxylic acid and at least one diol in a dicarboxylate, and 4) a soft segment of a polyalkylene oxide.
Aromatic 1) Dicarboxylic acids include terephthalic acid (TPA), isophthalic acid (IPA), 1,5-naphthalene dicarboxylic acid (1,5-NDCA), 2,6-naphthalene dicarboxylic acid ), And the like,
Aromatic dicarboxylate, and dimethyl isophthalate.
3) lower diols such as ethylene glycol, propylene glycol, 1,4-butanediol, 1,5-pentanediol, 1,4-cyclohexanedimethanol and the like.
(4) polyoxyethylene glyoxypropylene glycol, polyoxytetramethylene glycol, and the like as the polyalkylene oxide.
The amide-based elastomer
Polyether ester amide and polyether amide. Examples of the amide include PA-6, PA12, and PA11. Examples of the ether include polyoxyethylene glycol, polyoxytetramethylene glycol, and mixtures or block copolymers thereof. Can be used.
< Impact modifier About>
Impact modifiers are used to reduce impact resistance or to improve impact properties.
Examples of impact modifiers include ethylene-alpha-olefin copolymers such as ethylene-propylene, ethylene-butene, ethylene-hexene, ethylene-octene, ethylene-propylene- Ethylene-butene-5-ethylidene-2-norbornene copolymer and the like.
Natural rubber or synthetic rubber may be used as the impact modifier. Examples of the synthetic rubber include isobutylene, para-halomethylstyrene, polybutadiene, polyisoprene, styrene diene copolymer, nitrile rubber and butyl rubber.
Also, it is possible to use an ionomer, an ethylene propylene diene monomer (EPDM), a methyl methacrylate butadiene styrene block copolymer (MBS), a styrene butadiene styrene block copolymer butadiene styrene block copolymer (SBS)), styrene ethylene butylene styrene block copolymer (SEBS), styrene maleic anhydride (SMA), N-phenyl maleimide maleimide (NPI), alpha-methyl styrene acrylonitrile (AMSAN), maleic anhydride grafted styrene ethylene butylene styrene block copolymer (SEBS-g-MAH ), Acrylic acid grafted polyethylene (PE-g-AA), maleic anhydride grafted polyet (PE-g-MAH), maleic anhydride grafted polypropylene (PP-g-MAH), maleic anhydride grafted ethylene butyl acrylate (EBAgMAH) , Glycidyl methacrylate grafted ethylene methyl acrylate (EMA-g-GMA)), or the like may be used alone or in combination.
Since ethylene propylene diene monomer (EPDM) and the like in rubber can be dynamically crosslinked, various types of organic peroxides such as benzoylperoxide (BPO), glycidylmethacrylate (GMA) and the like are used .
<About compatibilizer>
The compatibilizer is used to form and stabilize the microphase separation structure by alleviating property differences between the components.
The compatibilizing agent may be a non-reactive compatibilizer that uses only physical properties and a reactive compatibilizer that reacts with the plastic portion to cause physical properties by reacting with the plastic portion.
A non-reactive compatibilizer such as a random copolymer, a graft copolymer, and a block copolymer is mainly used, and a reactive compatibilizer is a non-reactive compatibilizer, .
Maleic anhydride, epoxy, carbonyl group and the like present as a reactive group in the plastic are added as a reactive compatibilizer bonded to the terminal or side of the compatibilizer and reacted while being extruded by the extruder to improve physical properties.
This is referred to as reaction extrusion. When a reactive compatibilizing agent is used, the effect is large even when a small amount is used as compared with the non-reactive type compatibilizing agent, and commercialization is possible even when a non-reactive compatibilizing agent is difficult to commercialize There is a possibility that the possibility of degradation of physical properties due to side reaction or the like may be generated and may be influenced by processing conditions and there is a disadvantage that the price is higher than the non-reactive type compatibilizer.
Nowadays, many researches and developments have been made on the commercialization agent, and since it is produced commercially, it can be applied and used.
In the case of recycling waste plastics, it is also possible to use a compatibilizer derived from a company that produces a compatibilizer (eg, Bennet BV), and since this compatibilizer is a very expensive compatibilizer, The compatibilizing agent may be used alone or in combination.
Non-reactive and reactive compatibilizers,
But are not limited to, ethylene propylene rubber (EPR), ethylene propylene diene monomer (EPDM), methyl methacrylate butadiene styrene block copolymer (MBS), styrene butadiene styrene Block copolymers such as styrene butadiene styrene block copolymer (SBS), styrene ethylene butylene styrene block copolymer (SEBS), styrene maleic anhydride (SMA) Methyl styrene acrylonitrile (AMSAN), maleic anhydride grafted styrene ethylene butylene styrene block copolymer (SEBS-g), maleic anhydride grafted styrene-butylene styrene block copolymer -MAH), acrylic acid grafted polyethylene (PE-g-AA), maleic anhydride grafted polyethylene maleic anhydride grafted polyethylene (PE-g-MAH), maleic anhydride grafted polypropylene (PP-g-MAH), maleic anhydride grafted ethylene butyl acrylate (EBAgMAH), glycidyl methacrylate grafted ethylene methyl acrylate (EMA-g-GMA)), or the like.
≪ Describing the other ingredients briefly &
As the lubricant, wax, metal soap (Zinc stearate) or the like is used as a lubricant for promoting the manufacturing process.
As the antioxidant, a phenol-based, amine-based, phosphorus-based or the like may be used.
It will be understood by those skilled in the art that the technical features of the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the embodiments described above are illustrative and not restrictive in all respects and that the scope of the invention is indicated by the appended claims rather than the foregoing description, And all changes or modifications derived from equivalents thereof should be construed as being included within the scope of the present invention.
S10: Mixing step
S20: Heating and extraction steps
S30: Pellet stage
S40: drying step
Claims (5)
Heating and extracting the mixture by heating and extracting with an extruder (S20);
A pellet step (S30) of forming the extracted extract into pellets;
And drying the pellet (S40)
In the heating and extraction step (S20), the heat treatment temperature for the mixture is 230 to 260 ° C,
Wherein the drying step (S40) comprises drying the pellet at a temperature of 80 to 120 DEG C for 2 to 4 hours, wherein the pellet is dried at 80 to 120 DEG C for 2 to 4 hours. A synthetic resin comprising a component composed of one or more of engineering plastic, thermoplastic elastomer or recycled plastic ≪ / RTI >
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20220117932A (en) | 2021-02-17 | 2022-08-25 | 하이테크필라(주) | Manufacturing method of monofilament yarn using recycled Thermoplastic Polyester elastomet |
| KR102514587B1 (en) | 2021-11-30 | 2023-03-28 | 주식회사 루소 | Recycled plastic raw material packer system |
| KR20230081821A (en) | 2021-11-30 | 2023-06-08 | 주식회사 루소 | Recycled polymer scrap quantitative supply system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111808394B (en) * | 2020-07-15 | 2022-07-08 | 浙江塑博特包装有限公司 | Plastic compatilizer composition, thermoplastic regenerated plastic and processing method thereof |
| KR102538437B1 (en) * | 2023-01-10 | 2023-05-31 | 이재일 | Grommet Composition for Vehicle |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100566065B1 (en) | 2005-07-26 | 2006-03-30 | 민병창 | Process of plastic Re-use |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100566065B1 (en) | 2005-07-26 | 2006-03-30 | 민병창 | Process of plastic Re-use |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20220117932A (en) | 2021-02-17 | 2022-08-25 | 하이테크필라(주) | Manufacturing method of monofilament yarn using recycled Thermoplastic Polyester elastomet |
| KR102514587B1 (en) | 2021-11-30 | 2023-03-28 | 주식회사 루소 | Recycled plastic raw material packer system |
| KR20230081821A (en) | 2021-11-30 | 2023-06-08 | 주식회사 루소 | Recycled polymer scrap quantitative supply system |
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