KR100662862B1 - Production method of molding mixture of synthetic resin comprising an urushi lacquer and molding mixture of synthetic resin produced by thereof - Google Patents
Production method of molding mixture of synthetic resin comprising an urushi lacquer and molding mixture of synthetic resin produced by thereof Download PDFInfo
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- KR100662862B1 KR100662862B1 KR1020050062847A KR20050062847A KR100662862B1 KR 100662862 B1 KR100662862 B1 KR 100662862B1 KR 1020050062847 A KR1020050062847 A KR 1020050062847A KR 20050062847 A KR20050062847 A KR 20050062847A KR 100662862 B1 KR100662862 B1 KR 100662862B1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0001—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor characterised by the choice of material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/24—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
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Abstract
Description
도 1a는 본 발명의 방법에 의해 나일론 수지 중량 대비 여과된 옻액 70 중량%를 혼합하여 제조된 사출성형물의 사진이고,Figure 1a is a photograph of the injection molding prepared by mixing 70% by weight of the filtered lacquer liquid relative to the weight of nylon resin by the method of the present invention,
도 1b는 본 발명의 방법에 의해 나일론 수지 중량 대비 여과된 옻액 90 중량%를 혼합하여 제조된 사출성형물의 사진이고,Figure 1b is a photograph of the injection molding prepared by mixing 90% by weight of the filtered lacquer liquid relative to the weight of nylon resin by the method of the present invention,
도 2a는 본 발명의 방법에 의해 아크릴 수지 중량 대비 여과된 옻액 70 중량%를 혼합하여 제조된 사출성형물의 사진이고,Figure 2a is a photograph of the injection molding prepared by mixing 70% by weight of the filtered lacquer liquid by weight of the acrylic resin by the method of the present invention,
도 2b는 본 발명의 방법에 의해 아크릴 수지 중량 대비 여과된 옻액 90 중량%를 혼합하여 제조된 사출성형물의 사진이고,Figure 2b is a photograph of the injection molding prepared by mixing 90% by weight of the filtered lacquer liquid to the weight of the acrylic resin by the method of the present invention,
도 3a는 본 발명의 방법에 의해 ABS 수지 중량 대비 여과된 옻액 70 중량%를 혼합하여 제조된 사출성형물의 사진이고,Figure 3a is a photograph of the injection molding prepared by mixing 70% by weight of the filtered lacquer liquid relative to the weight of ABS resin by the method of the present invention,
도 3b는 본 발명의 방법에 의해 ABS 수지 중량 대비 여과된 옻액 70 중량%를 혼합하여 제조된 사출성형물의 사진이다.Figure 3b is a photograph of the injection molding prepared by mixing 70% by weight of the filtered lacquer liquid by weight of the ABS resin by the method of the present invention.
본 발명은 옻 성분을 함유하는 합성수지 혼합 사출물의 제조방법 및 상기 방법에 의해 제조된 합성수지 혼합 사출물에 관한 것으로, 보다 상세하게는 합성수지와 옻액의 혼합공정, 상기 혼합물을 편평화시켜 건조하는 건조공정, 상기 건조된 혼합물의 분쇄공정 및 상기 분사물의 사출공정을 포함하여 구성되는 옻 성분을 함유하는 합성수지 혼합 사출물의 제조방법 및 상기 방법에 의해 제조된 합성수지 혼합 사출물에 관한 것이다.The present invention relates to a method for producing a synthetic resin mixture injection product containing a lacquer component and to a synthetic resin mixture injection product produced by the above method, and more particularly, to a mixing step of a synthetic resin and a lacquer liquid, a drying step of flattening and drying the mixture, The present invention relates to a method for preparing a synthetic resin mixed injection product containing a lacquer component including a pulverization step of the dried mixture and an injection step of the sprayed material, and a synthetic resin mixed injection product produced by the method.
옻나무에서 채취되는 생옻 또는 옻액에는 55~66%의 우루시올, 25~30%의 물, 5~10%의 단당류 및 다당류, 3~5%의 함질소물질, 소량의 락카제(laccase), 스텔라시아닌(stellcuanin), 퍼옥시다제(peroxidase)와 같은 효소를 함유하고 있는 것으로 알려져 있다. 옻칠은 천연 수지의 일종으로 수천년에 걸쳐 우리나라, 중국 및 일본 등지에서 주로 나무제품에 적용하여 장롱, 그릇, 수저, 상 등의 일상 생활용품을 제조하는 데에 대량 사용되어 왔으며, 내염성, 내열성, 방부성, 방충성 및 절연성이 우수하다는 장점을 가지고 있으며, 특히 보존성이 우수하다는 것은 잘 알려진 사실이다.Raw lacquer or lacquer from the lacquer tree contains 55-66% urushiol, 25-30% water, 5-10% monosaccharides and polysaccharides, 3-5% nitrogen-containing substances, small amounts of laccase, stellar It is known to contain enzymes such as stellcuanin and peroxidase. Lacquer is a kind of natural resin that has been used in thousands of years in Korea, China and Japan, mainly applied to wooden products, and has been used in large quantities in the production of daily necessities such as cabinets, bowls, cutlery, and tableware. It is a well-known fact that it has the advantage of excellent insect repellency and insulation, and especially excellent storage.
최근, 옻 성분을 함유하는 기능성 폴리에틸렌 수지를 제조하기 위한 노력이 시도되고 있다(대한민국 공개특허 제2000-0024493호). 구체적으로, 합성수지로 사용되는 고분자 물질을 10 중량%의 농도로 유기 용매에 녹인 후, 정제된 옻 수액을 고분자 물질의 중량을 기준으로 20 중량% 이내로 혼합시켜 주고, 상기 고분자와 옻 수액의 혼합용액을 주형한 후, 건조하여 수득하거나, 합성수지로 사용되는 고분자 물질을 고분자 용융온도까지 상승시켜 고분자 용융체를 형성하고, 옻 수액을 고분자의 중량을 기준으로 20 중량% 이내의 양으로 혼합한 후 교반하여 고분자와 옻의 혼합 용융체를 생성한 후, 이를 슬릿 다이를 통해 용융 압출한 다음, 로울러에서 급격히 냉각시켜 고형화함으로써 수득되는 것을 특징으로 한다.Recently, efforts have been made to produce functional polyethylene resins containing a lacquer component (Korean Patent Laid-Open No. 2000-0024493). Specifically, after dissolving the polymer material used as a synthetic resin in an organic solvent at a concentration of 10% by weight, the purified lacquer sap is mixed within 20% by weight based on the weight of the polymer material, the mixed solution of the polymer and lacquer sap After molding, and dried or obtained by increasing the polymer material used as a synthetic resin to the polymer melting temperature to form a polymer melt, and mixed with the lacquer sap in an amount of less than 20% by weight based on the weight of the polymer and stirred After producing a mixed melt of the polymer and lacquer, it is obtained by melt extruding it through a slit die, and then solidified by cooling rapidly in a roller.
그러나, 상기 방법은 고분자와 옻액의 혼합이 잘 이루어지기 위해 옻액의 첨가가 20중량% 이내로 이루어지므로 옻 성분 고유의 효과를 나타내기 위한 다양한 범위의 옻액 첨가가 용이하지 않은 단점이 있다.However, the method has a disadvantage in that it is not easy to add a wide range of lacquer solution to exhibit the inherent effect of the lacquer component since the addition of the lacquer in less than 20% by weight in order to achieve a good mixing of the polymer and the lacquer.
본 발명은 상기 종래 기술의 문제점을 해결하기 위하여 안출한 것으로, The present invention has been made to solve the problems of the prior art,
본 발명의 목적은 고농도의 옻액의 첨가에서도 안정하게 합성수지와 혼합되어 사출성형물의 제조가 가능한 옻액을 함유하는 합성수지 혼합 사출물의 제조방법 을 제공하는 것이다. It is an object of the present invention to provide a method for producing a synthetic resin-mixed injection product containing a lacquer liquid which is stably mixed with a synthetic resin even in the addition of a high concentration of lacquer liquid to enable the production of an injection molded product.
본 발명의 또 다른 목적은 상기 방법에 의해 제조된, 유해전자파의 흡수성, 원적외선 방사율, 항균성 및 내구성이 우수한 옻 성분을 함유하는 합성수지의 혼합 사출물을 제공하는 것이다.Still another object of the present invention is to provide a mixed injection molding product of a synthetic resin prepared by the above method, containing a lacquer component excellent in absorbing harmful electromagnetic waves, far-infrared emissivity, antibacterial and durability.
상술한 기술적 과제를 달성하기 위한 본 발명에 따른 옻 성분을 함유하는 합성수지의 혼합 사출방법은, 합성수지 펠렛 또는 분말의 전체 중량 대비 여과된 옻 액 1 ~ 90 중량%를 혼합하는 혼합공정, 상기 혼합물을 2 ~ 5 ㎜의 두께로 편평화시켜 3 ~ 5시간동안 100 ~ 160℃에서 건조하는 건조공정, 상기 건조된 혼합물을 2 ~ 300 메쉬(mesh)의 크기로 분쇄하는 분쇄공정 및 상기 분사물을 사출성형하는 사출공정을 포함하여 구성된다.The mixed injection method of the synthetic resin containing the lacquer component according to the present invention for achieving the above technical problem, the mixing process of mixing 1 to 90% by weight of the filtered lacquer liquid relative to the total weight of the synthetic resin pellets or powder, the mixture Flattening to a thickness of 2 ~ 5 mm to dry at 100 ~ 160 ℃ for 3 to 5 hours, a grinding process of grinding the dried mixture to a size of 2 to 300 mesh (mesh) and injection of the injection It is comprised including the injection process to shape | mold.
이하, 본 발명을 더욱 상세히 설명한다.Hereinafter, the present invention will be described in more detail.
본 발명에 적용되는 합성수지에는 폴리에틸렌터프탈레이트(polyethylene terphthalate; PET), 폴리프로필렌(polypropylene; PP), 폴리스티렌(polystyrene; PS), 염화비닐(polyvinyl chloride; PVC), 염화비닐리덴(polyvinylidene chloride; PVDC), ABS 수지(acrylonitrile butadiene styrene copolymer), 플로오르수지, 나일론 수지, 아크릴 수지, 폴리아세트산 비닐수지, 폴리아미드 수지, 아세탈 수지, 폴리카보네이트(polycarbonate; PC), 폴리페닐렌옥사이드, 폴리에스테르, 폴리술폰 등의 합성수지가 가능하며, ABS 수지, 나일론 수지 또는 아크릴 수지인 것이 바람직하다. 상기 합성수지는 펠렛 또는 분말형태로 제품화된 것을 이용하며, 상기 합성수지류는 전체적으로 정전기가 발생하기 때문에 먼지가 많이 붙으므로, 인쇄 작업시에 반드시 먼지를 제거하면서 인쇄하는 것이 상례로 되어 있다. 이러한 문제점을 해결하기 위해서 최신 장비에는 정전 방지 처리를 부착하여 사용하며, 대전방지제를 사용하는 방법도 있다. The synthetic resin applied to the present invention includes polyethylene terphthalate (PET), polypropylene (PP), polystyrene (PS), polyvinyl chloride (PVC), polyvinylidene chloride (PVDC) , ABS resin (acrylonitrile butadiene styrene copolymer), fluororesin, nylon resin, acrylic resin, polyvinyl acetate resin, polyamide resin, acetal resin, polycarbonate (PC), polyphenylene oxide, polyester, polysulfone Synthetic resins, such as these, are possible, and it is preferable that they are ABS resin, a nylon resin, or an acrylic resin. The synthetic resin is produced in the form of pellets or powder. Since the synthetic resins have a lot of dust because static electricity is generated as a whole, it is usual to print while removing dust at all during a printing operation. In order to solve this problem, the latest equipment is equipped with an antistatic treatment, and there is a method of using an antistatic agent.
본 발명에 사용되는 옻은 한국산, 중국산, 일본산, 동남아산 등의 산지에 구애를 받지 않으며, 이들 옻액은 산지에 따라 다소 조성에 차이를 나타내지만 모두 적용될 수 있다. 본 발명에 사용되는 옻액은 여과지로 여과하여 불순물을 제거한 후에 사용하며, 상기 합성수지 펠렛 또는 분말의 전체 중량 대비 여과된 옻액 1 ~ 90 중량%를 혼합한 다음, 상기 혼합물을 2 ~ 5㎜의 두께로 편평화시켜 3 ~ 5시간 동안 100 ~ 160 ℃에서 건조한다. The lacquer used in the present invention is not subject to the origin of Korea, China, Japan, Southeast Asia, etc., and these lacquer liquids may show some differences in composition depending on the origin, but all can be applied. Lacquer liquid used in the present invention is used after filtering the filter paper to remove impurities, and mixed 1 to 90% by weight of the filtered lacquer liquid relative to the total weight of the synthetic resin pellets or powder, and then the mixture to a thickness of 2 ~ 5㎜ Flatten and dry at 100-160 ° C. for 3-5 hours.
옻액 자체의 점성에 의해 상기 합성수지 펠렛 또는 분말로 옻액에 의한 코팅이 이루어지나, 옻액의 함량이 20 중량% 이상의 과량이 혼합되면 상기 합성수지 펠렛 또는 분말과 더 이상의 혼합용융을 이루지 못하는 문제점이 있다. 따라서, 본 발명자들은 옻 성분의 효과를 극대화 하기 위해 고농도의 옻액을 함유한 합성수지를 제조하기위해, 상기 옻액과 합성수지 펠렛 또는 분말의 혼합 후에 이를 편평화시켜 건조하였다.Coating of the synthetic resin pellets or powders by the lacquer liquid by the viscosity of the lacquer liquid itself, but if the content of the lacquer is mixed in excess of 20% by weight, there is a problem in that no further melt mixing with the synthetic resin pellets or powder. Therefore, the present inventors flatten and dry after mixing the lacquer and the synthetic resin pellets or powder in order to prepare a synthetic resin containing a high concentration of lacquer in order to maximize the effect of the lacquer component.
상기 건조된 혼합물은 분쇄기를 이용하여 2 ~ 300 메쉬(mesh)의 크기로 분쇄하는 분쇄공정을 거친 후, 상기 분쇄물을 사출성형기에 넣어 원하는 금형에 따라 사출하는 사출공정을 거친다. 이때, 상기 사출공정은 40 ~ 60 ㎏/㎠의 사출압력, 30 ~ 40%의 사출속도, 20 ~ 50 초의 냉각시간 및 180 ~ 260℃의 온도에서 수행하는 것이 바람직하다.The dried mixture is subjected to a grinding step of grinding to a size of 2 ~ 300 mesh (mesh) using a grinder, and then the injection into the injection molding machine to put the powder into an injection molding machine. At this time, the injection process is preferably carried out at an injection pressure of 40 ~ 60 kg / ㎠, injection speed of 30 to 40%, a cooling time of 20 to 50 seconds and a temperature of 180 ~ 260 ℃.
또한, 본 발명은 상기 방법에 의해 제조된 옻성분을 함유한 합성수지 혼합 사출물을 제공한다. 상기 방법에 의해 제조된 옻 성분을 함유한 합성수지 혼합사출물은 유해전자파의 흡수성, 원적외선 방사율, 항균성 및 내구성이 우수하므로, TV, 핸드폰, 노트북 컴퓨터, 자동차용 내장재, 건축자재 등의 소재에 다양하게 적용될 수 있다.In addition, the present invention provides a synthetic resin mixture injection molding containing a lacquer component prepared by the above method. Synthetic resin mixture injection containing the lacquer component prepared by the above method is excellent in absorbing harmful electromagnetic waves, far-infrared emissivity, antibacterial and durability, so that it can be applied to various materials such as TVs, mobile phones, laptop computers, automobile interior materials, building materials, etc. Can be.
이하, 본 발명의 구성을 실시예, 시험예 및 표를 통하여 상세히 설명하기로 한다. 다만, 본 발명의 권리범위는 하기 실시예, 시험예 및 표에 의하여 본 발명의 청구범위가 한정되는 것은 아니다.Hereinafter, the configuration of the present invention will be described in detail through examples, test examples and tables. However, the scope of the present invention is not limited to the claims of the present invention by the following examples, test examples and tables.
실시예 1. 옻액 및 나일론 수지의 혼합 사출방법Example 1 Mixed Injection Method of Lacquer and Nylon Resin
1-1. 옻액 70 중량%를 함유한 합성수지의 사출성형1-1. Injection molding of synthetic resin containing 70% by weight of lacquer
나일론 수지(공영 플라테크 사) 전체 중량 대비 여과된 옻액 70 중량%를 혼합한 다음, 상기 혼합물을 2 ~ 5㎜ 두께로 알루미늄 판 위에서 편평화시켜 5시간 동안 160℃에서 건조하였다. 상기 건조물을 분쇄기(2HP, 강화분쇄기)로 300메쉬의 크기로 분쇄한 다음, 사출성형기(Toggle-type, 동신유압)로 260℃의 온도에서 50 ㎏/㎠의 사출압력, 48%의 사출속도, 35 초의 냉각시간으로 사출성형하였다(도 1a 참조). 70% by weight of the filtered lacquer solution was mixed with respect to the total weight of nylon resin (Kong-Platech Co., Ltd.), and then the mixture was flattened on an aluminum plate with a thickness of 2 to 5 mm and dried at 160 ° C. for 5 hours. The dried product was pulverized to a size of 300 mesh by a grinder (2HP, reinforcing grinder), and then injection molding machine (Toggle-type, Dongshin Hydraulic) 50 kg / ㎠ injection pressure at a temperature of 260 ℃, injection rate of 48%, Injection molding was performed with a cooling time of 35 seconds (see FIG. 1A).
1-2. 옻액 90 중량%를 함유한 합성수지의 사출성형1-2. Injection molding of synthetic resin containing 90% by weight of lacquer
나일론 수지(공영 플라테크 사) 전체 중량 대비 여과된 옻액 90 중량%를 혼합한 다음, 상기 혼합물을 2 ~ 5㎜ 두께로 알루미늄 판 위에서 편평화시켜 5시간 동안 160℃에서 건조하였다. 상기 건조물을 분쇄기(2HP, 강화분쇄기)로 300메쉬의 크기로 분쇄한 다음, 사출성형기(Toggle-type, 동신유압)로 260℃의 온도에서 50 ㎏/㎠의 사출압력, 48%의 사출속도, 35 초의 냉각시간으로 사출성형하였다(도 1b 참조). 90% by weight of the filtered lacquer solution was mixed with respect to the total weight of the nylon resin (Kong-Platech Co., Ltd.), and then the mixture was flattened on an aluminum plate with a thickness of 2 to 5 mm and dried at 160 ° C. for 5 hours. The dried product was pulverized to a size of 300 mesh by a grinder (2HP, reinforcing grinder), and then injection molding machine (Toggle-type, Dongshin Hydraulic) 50 kg / ㎠ injection pressure at a temperature of 260 ℃, injection rate of 48%, Injection molding was performed with a cooling time of 35 seconds (see FIG. 1B).
실시예 2. 옻액 및 아크릴 수지의 혼합 사출방법Example 2 Mixed Injection Method of Lacquer and Acrylic Resin
2-1. 옻액 70 중량%를 함유한 합성수지의 사출성형2-1. Injection molding of synthetic resin containing 70% by weight of lacquer
아크릴 수지(LG화학 주식회사) 전체 중량 대비 여과된 옻액 70 중량%를 혼합한 다음, 상기 혼합물을 2 ~ 5㎜ 두께로 알루미늄 판 위에서 편평화시켜 5시간 동안 160℃에서 건조하였다. 상기 건조물을 분쇄기(2HP, 강화분쇄기)로 300메쉬의 크기로 분쇄한 다음, 사출성형기(Toggle-type, 동신유압)로 200℃의 온도에서 55 ㎏/㎠의 사출압력, 40%의 사출속도, 20 초의 냉각시간으로 사출성형하였다(도 2a 참조). After mixing 70% by weight of the filtered lacquer with respect to the total weight of the acrylic resin (LG Chemical Co., Ltd.), the mixture was flattened on an aluminum plate with a thickness of 2 to 5 mm and dried at 160 ° C. for 5 hours. The dried product was pulverized to a size of 300 mesh with a grinder (2HP, reinforced grinding machine), and then injection molding machine (Toggle-type, Dongshin Hydraulic) 55 kg / ㎠ injection pressure, 40% injection speed, at a temperature of 200 ℃, Injection molding was performed with a cooling time of 20 seconds (see FIG. 2A).
2-2. 옻액 90 중량%를 함유한 합성수지의 사출성형2-2. Injection molding of synthetic resin containing 90% by weight of lacquer
아크릴 수지(LG화학 주식회사) 전체 중량 대비 여과된 옻액 90 중량%를 혼합한 다음, 상기 혼합물을 2 ~ 5㎜ 두께로 알루미늄 판 위에서 편평화시켜 5시간 동안 160℃에서 건조하였다. 상기 건조물을 분쇄기(2HP, 강화분쇄기)로 300메쉬의 크기로 분쇄한 다음, 사출성형기(Toggle-type, 동신유압)로 200℃의 온도에서 55 ㎏/㎠의 사출압력, 40%의 사출속도, 20 초의 냉각시간으로 사출성형하였다(도 2b 참조). 90 wt% of the filtered lacquer liquid was mixed with respect to the total weight of the acrylic resin (LG Chemical Co., Ltd.), and then the mixture was flattened on an aluminum plate with a thickness of 2 to 5 mm and dried at 160 ° C. for 5 hours. The dried product was pulverized to a size of 300 mesh with a grinder (2HP, reinforced grinding machine), and then injection molding machine (Toggle-type, Dongshin Hydraulic) 55 kg / ㎠ injection pressure, 40% injection speed, at a temperature of 200 ℃, Injection molding was performed with a cooling time of 20 seconds (see FIG. 2B).
실시예 3. 옻액 및 ABS 수지의 혼합 사출방법Example 3. Mixed injection method of lacquer and ABS resin
3-1. 옻액 70 중량%를 함유한 합성수지의 사출성형3-1. Injection molding of synthetic resin containing 70% by weight of lacquer
ABS 수지(한국엔지니어링플라스틱 사) 전체 중량 대비 여과된 옻액 70 중량%를 혼합한 다음, 상기 혼합물을 2 ~ 5㎜ 두께로 알루미늄 판 위에서 편평화시켜 5시간 동안 160℃에서 건조하였다. 상기 건조물을 분쇄기(2HP, 강화분쇄기)로 300메쉬의 크기로 분쇄한 다음, 사출성형기(Toggle-type, 동신유압)로 200℃의 온도에서 50 ㎏/㎠의 사출압력, 35%의 사출속도, 20 초의 냉각시간으로 사출성형하였다( 도 3a 참조). 70% by weight of the filtered lacquer solution was mixed with respect to the total weight of ABS resin (Korea Engineering Plastics Co., Ltd.), and then the mixture was flattened on an aluminum plate with a thickness of 2 to 5 mm and dried at 160 ° C. for 5 hours. The dried product was pulverized to a size of 300 mesh with a grinder (2HP, reinforcing grinder), followed by an injection molding machine (Toggle-type, Dongshin hydraulic pressure) at an injection pressure of 50 kg / ㎠, an injection speed of 35%, Injection molding was performed with a cooling time of 20 seconds (see FIG. 3A).
3-2. 옻액 90 중량%를 함유한 합성수지의 사출성형3-2. Injection molding of synthetic resin containing 90% by weight of lacquer
ABS 수지(한국엔지니어링플라스틱 사) 전체 중량 대비 여과된 옻액 90 중량%를 혼합한 다음, 상기 혼합물을 2 ~ 5㎜ 두께로 알루미늄 판 위에서 편평화시켜 5시간 동안 160℃에서 건조하였다. 상기 건조물을 분쇄기(2HP, 강화분쇄기)로 300메쉬의 크기로 분쇄한 다음, 사출성형기(Toggle-type, 동신유압)로 200℃의 온도에서 50 ㎏/㎠의 사출압력, 35%의 사출속도, 20 초의 냉각시간으로 사출성형하였다(도 3b 참조).90% by weight of the filtered lacquer liquid was mixed with respect to the total weight of ABS resin (Korea Engineering Plastics Co., Ltd.), and then the mixture was flattened on an aluminum plate with a thickness of 2 to 5 mm and dried at 160 ° C. for 5 hours. The dried product was pulverized to a size of 300 mesh with a grinder (2HP, reinforcing grinder), followed by an injection molding machine (Toggle-type, Dongshin hydraulic pressure) at an injection pressure of 50 kg / ㎠, an injection speed of 35%, Injection molding was performed with a cooling time of 20 seconds (see FIG. 3B).
시험예 1. 원적외선 방사효과 시험Test Example 1. Far Infrared Radiation Effect Test
본 발명자들은 상기 실시예 3-2에서 제조된 ABS 혼합사출물에서 방출되는 원적외선 방사율을 한국원적외선응용평가연구원(KIFA)에 의뢰하여 수행하였다.The present inventors performed the far-infrared emissivity emitted from the ABS mixed injection prepared in Example 3-2 by requesting the Korea Far Infrared Application Evaluation Institute (KIFA).
구체적으로, 37℃에서 FT-IR 스펙트로미터(spectrometer)를 이용한 흑체(black body) 대비 측정한 결과 하기 표 1과 같은 우수한 원적외선 방사율을 나타냄을 확인할 수 있었다.Specifically, as a result of measuring the black body using a FT-IR spectrometer at 37 ℃ compared to the black body (black body) it was confirmed that the excellent far-infrared emissivity as shown in Table 1 below.
시험예 2. 항균효과 시험Test Example 2 Antibacterial Effect Test
본 발명자들은 상기 실시예 3-2에서 제조된 ABS 혼합사출물에 대한 항균시험을 한국화학시험연구원에 의뢰하여 수행하였다. 이때 사용된 시험균주는 대장균(Escherichia coli) ATCC 8739 및 스타필로코커스 아우레우스(Staphylococcus aureus) ATCC 6538이다.The present inventors carried out the antibacterial test for the ABS mixture injection prepared in Example 3-2 by the Korea Research Institute for Chemical Testing. The test strains used were Escherichia coli ATCC 8739 and Staphylococcus aureus ATCC 6538.
이때, A는 대조시편의 초기균수(평균치)이고, B는 24시간 배양후 대조시편의 균주(평균치)이며, C는 24시간 배양후 본 발명에 따라 제조된 폴리에틸렌 터프탈레이트 수지에서의 균수(평균치)를 나타낸 것이며, 항균활성값(log(B/C))은 log(B/A)에서 log(C/A)을 뺀 수치이다.At this time, A is the initial number of bacteria (average value) of the control specimen, B is the strain (average value) of the control specimen after 24 hours culture, C is the number of bacteria (average value) in the polyethylene terphthalate resin prepared according to the present invention after 24 hours culture ), And the antimicrobial activity value (log (B / C)) is the log (B / A) minus log (C / A).
상기 표 2에 나타난 바와 같이, 본 발명에 의해 제조된 ABS 혼합 사출물은 우수한 항균활성이 나타남을 확인할 수 있었다.As shown in Table 2, it can be seen that the ABS mixture injection molding produced by the present invention showed excellent antimicrobial activity.
상술한 실시예, 시험예와 도면은 발명의 내용을 상세히 설명하기 위한 목적일 뿐, 발명의 기술적 사상의 범위를 한정하고자 하는 목적이 아니며, 이상에서 설명한 본 발명은 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 있어 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 여러 가지 치환, 변형 및 변경이 가능하므로 상기 실시예 및 첨부된 도면에 한정되는 것이 아님은 물론이며, 후술하는 청구범위 뿐만이 아니라 청구범위와 함께 균등범위를 포함하여 판단되어야 한다.The above-described examples, test examples and drawings are merely for the purpose of describing the contents of the invention in detail, and are not intended to limit the scope of the technical idea of the invention. As those skilled in the art, various substitutions, modifications and changes are possible within the scope without departing from the spirit of the present invention is not limited to the embodiments and the accompanying drawings, as well as the claims described below It should be determined that the claims are included in their equality.
상술한 본 발명에 따른 합성수지 혼합사출물의 제조방법은 저농도 뿐만 아니라 20 중량% 이상의 고농도의 옻성분을 함유하는 합성수지 혼합사출물의 제조가 가능하며, 상기 방법에 의해 제조된 혼합사출물은 원적외선 방사율, 항균성 및 내구성이 우수하므로 TV, 핸드폰, 노트북 컴퓨터, 자동차용 내장재, 건축자재 등의 소재에 다양하게 적용될 수 있다.The method of preparing a synthetic resin mixed injection according to the present invention described above can produce a synthetic resin mixed injection containing a lacquer component having a high concentration of 20% by weight or more as well as a low concentration, and the mixed injection prepared by the above method has far-infrared emissivity, antimicrobial activity and Because of its excellent durability, it can be applied to various materials such as TVs, mobile phones, notebook computers, automobile interior materials, and building materials.
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| KR101838185B1 (en) * | 2017-02-03 | 2018-03-13 | (주)효남 | Composite material for molding including lacquer, manufacturing method thereof and molded article |
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| KR20010070600A (en) * | 2001-05-26 | 2001-07-27 | 김형준 | Polyolefin composite resin containing natural lacquer, and process for preparing the same |
| KR20020090040A (en) * | 2001-05-26 | 2002-11-30 | 아천주식회사 | Engineering composite resin containing natural lacquer, and process for preparing the same |
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