KR20230035797A - Biocomposite using eco-friendly plant stem and method for manufacturing the same - Google Patents
Biocomposite using eco-friendly plant stem and method for manufacturing the same Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000011173 biocomposite Substances 0.000 title claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 241000196324 Embryophyta Species 0.000 title description 12
- 239000002245 particle Substances 0.000 claims abstract description 23
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 20
- 239000000057 synthetic resin Substances 0.000 claims abstract description 20
- 239000000843 powder Substances 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 6
- 230000000694 effects Effects 0.000 claims abstract description 4
- 230000007062 hydrolysis Effects 0.000 claims description 4
- 238000006460 hydrolysis reaction Methods 0.000 claims description 4
- 238000010298 pulverizing process Methods 0.000 claims description 4
- 238000013329 compounding Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 238000012644 addition polymerization Methods 0.000 claims description 2
- 230000035515 penetration Effects 0.000 claims description 2
- 239000002105 nanoparticle Substances 0.000 claims 1
- 230000000704 physical effect Effects 0.000 abstract description 8
- 239000002699 waste material Substances 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 239000002023 wood Substances 0.000 abstract description 4
- 239000002131 composite material Substances 0.000 abstract description 3
- 239000005445 natural material Substances 0.000 abstract description 3
- 239000002341 toxic gas Substances 0.000 abstract description 3
- 238000006065 biodegradation reaction Methods 0.000 abstract description 2
- 238000002485 combustion reaction Methods 0.000 abstract description 2
- 238000000354 decomposition reaction Methods 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 abstract 2
- 230000000295 complement effect Effects 0.000 abstract 1
- 239000000047 product Substances 0.000 description 6
- 238000006116 polymerization reaction Methods 0.000 description 4
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000004108 freeze drying Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000005418 vegetable material Substances 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- QHZOMAXECYYXGP-UHFFFAOYSA-N ethene;prop-2-enoic acid Chemical compound C=C.OC(=O)C=C QHZOMAXECYYXGP-UHFFFAOYSA-N 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 229920006226 ethylene-acrylic acid Polymers 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 239000011858 nanopowder Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K11/00—Use of ingredients of unknown constitution, e.g. undefined reaction products
- C08K11/005—Waste materials, e.g. treated or untreated sewage sludge
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/88—Adding charges, i.e. additives
- B29B7/90—Fillers or reinforcements, e.g. fibres
- B29B7/92—Wood chips or wood fibres
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L101/00—Compositions of unspecified macromolecular compounds
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Abstract
Description
이 발명은 친환경 식물의 줄기를 이용한 바이오 복합재 및 그 제조 방법에 관한 것으로, 친환경적이면서도 물성 및 결합력이 우수한 바이오 복합재를 제조하는 방법에 관한 것이다.The present invention relates to a biocomposite using eco-friendly plant stems and a method for manufacturing the same, and to a method for manufacturing an eco-friendly biocomposite having excellent physical properties and bonding strength.
종래 천연재료인 목재를 포함하는 식물성 재료는 가볍고 친환경적이나 내구성이 현저히 떨어진다는 단점이 있는 반면, 합성수지의 경우 가볍고 상대적으로 가격이 저렴하고 성형성이 우수하고 다양한 제품을 성형할 수 있다는 장점 때문에 산업분야에서 크게 성장하였다. Conventional vegetable materials including wood, which is a natural material, are light and environmentally friendly, but have the disadvantage of significantly poor durability, whereas synthetic resins are lightweight, relatively inexpensive, have excellent moldability, and can be molded into various products in the industrial field. has grown significantly in
그러나, 최근 환경오염의 주범으로 인식, 각종 환경 규제로 인한 문제점이 발생, 기존 합성수지를 폐기시 연소시키거나, 토양에 매립, 회수하여 재이용 하는 방법에서, 연소시키는 방법은 대량의 유독가스가 발생되어 2차 오염을 유발하고, 매립 역시 분해되지 않고 토양에 그대로 남아있어 2차 오염이 야기되는 문제점이 꾸준히 재기되고 있다 또한, 회수하여 재이용하는 방법 역시, 그 회수율이 약 20%에 그치고 있는 실정으로, 회수하여 중복사용 할지라도 무제한으로 회수하여 사용할 수 없으므로 최종폐기물이 발생되는 문제점을 보완한 합성수지의 혼입량을 현저히 줄이고 친환경 소재를 첨가 중합한 복합소재의 제품 개발이 절실히 요구 되고 있다However, it has recently been recognized as the main culprit of environmental pollution, and problems have arisen due to various environmental regulations. In the method of burning the existing synthetic resin at the time of disposal, or burying it in the soil, recovering it and reusing it, the burning method generates a large amount of toxic gas, The problem of secondary pollution that causes secondary pollution and landfill remains in the soil without being decomposed is steadily resurfacing. In addition, the method of recovering and reusing is also a situation where the recovery rate is only about 20%, Even if it is recovered and reused, it cannot be recovered and used indefinitely, so it is urgently required to significantly reduce the amount of mixing of synthetic resins that complements the problem of generating final waste and to develop composite material products that are added and polymerized with eco-friendly materials.
이에 본 발명은 종래의 문제를 해결하기 위한 것으로서, 천연재료인 목재를 포함하는 식물성 재료의 단점을 보완하고, 친환경적이면서도 물성 및 결합력이 우수한 복합재의 기능은 물론, 기존 합성수지 폐기물의 환경적 문제를 현실적으로 해결하기 위한 것이다.Accordingly, the present invention is intended to solve the conventional problems, and complements the disadvantages of vegetable materials including wood, which is a natural material, and provides the function of a composite material that is environmentally friendly and has excellent physical properties and bonding strength, as well as realistically solves the environmental problems of existing synthetic resin waste. it is to solve
상기한 과제를 해결하기 위한 본 발명의 친환경 식물의 줄기를 이용한 바이오 복합재 및 그 제조 방법은, 친환경 식물 줄기 부문을 평균 50nm ~ 250nm로 분쇄한 분말 상태의 입자를 기존 합성수지에 일정 비율에 맞게 첨가 중합하여 합성수지의 혼입량을 현저히 줄이고 친환경적이면서도 물성 및 결합력이 우수한 Master Chip을 제조하는 과정으로 이루어진다. In order to solve the above problems, the biocomposite material using the stem of an eco-friendly plant and the method for manufacturing the same of the present invention is a method of adding and polymerization of powder particles obtained by pulverizing the stem of an eco-friendly plant to an average size of 50 nm to 250 nm to an existing synthetic resin at a certain ratio. This process significantly reduces the mixing amount of synthetic resin and manufactures a master chip that is eco-friendly and has excellent physical properties and bonding strength.
본 발명에 따르면,기존 합성수지의 가볍고 가격이 저렴하고 성형성이 우수하여 다양한 제품을 성형할 수 있는 장점은 그대로 보유하고, 친환경 식물의 줄기를 나노 분말을 첨가 중합함으로써, 기존 합성수지가 갖고 단점으로 폐기물 연소로 대량의 유독가스 발생량을 급격히 저하시키고, 매립시 분해되지 않는 문제점을 보완하여 1차적으로 생붕괴의 효율을 높이고, 2차로 완전분해로 이어져 최종 폐기물로 인한 환경 문제점를 해결하는 것은 물론, 친환경적이면서도 물성 및 결합력이 우수한 바이오 복합재의 효과를 제공한다.According to the present invention, the existing synthetic resins have the advantage of being lightweight, inexpensive, and excellent in moldability to mold various products, and by adding nano-powder to the stems of eco-friendly plants, the existing synthetic resins have disadvantages of waste Combustion drastically reduces the amount of toxic gas generated, supplements the problem of not being decomposed during landfill, firstly increases the efficiency of biodegradation, and secondly leads to complete decomposition, solving environmental problems caused by final waste, as well as being environmentally friendly and It provides the effect of a biocomposite with excellent physical properties and bonding strength.
도 1 친환경 식물의 줄기를 수확하여 나노분쇄 후 첨가중합하여, 컴파운딩 후 제품제조 단계를 설명
Figure 1 describes the product manufacturing steps after harvesting stems of eco-friendly plants, nano-pulverizing, adding polymerization, and compounding
이하 본 발명을 상세히 설명하나, 이는 하나의 예시에 불과할 뿐, 본 발명의 권리범위가 다음 내용에 의해 제한되는 것은 아니다.Hereinafter, the present invention will be described in detail, but this is only one example, and the scope of the present invention is not limited by the following content.
본 발명은 일 측면에서, 친환경 식물의 줄기의 본연의 고유 성질을 그대로 유지한 분말을 말하며, 중합 비율은 기존 합성수지에 평균 입도가 50nm ~ 250nm인 친환경 식물 줄기 분말을 3%~20%을 첨가 중합하는것으로 이루어진다.In one aspect, the present invention refers to a powder that retains the inherent properties of the stem of an eco-friendly plant, and the polymerization ratio is to add 3% to 20% of eco-friendly plant stem powder having an average particle size of 50 nm to 250 nm to an existing synthetic resin. done by doing
본 명세서에서 평균 입도는, 입자의 최장축과 최단축을 제외하고 임의의 두 지점에서 측정한 직경의 평균을 의미할 수 있다.In the present specification, the average particle size may refer to an average of diameters measured at two arbitrary points excluding the longest axis and the shortest axis of the particle.
여기서 상기 분말의 50nm ~ 250nm인 입자를 얻기 위해, 먼저 1차 분쇄된 친환경 식물 줄기 50㎛ ~ 1,000㎛ 분말 상태의 입자를 가수분해를 통해, 본연의 성질은 그대로 유지한채 섬유질을 부드럽게 하기위해 총 3일 중 2일 동안, 1일 6시간씩 4회차의 온도변화를(1회 45도, 2회 85도, 3회 4도, 4회 60도) 반복하여 2일 동안 일정 크기의 입자로 분쇄하기 위한 전처리 공정을 진행한다.Here, in order to obtain particles of 50 nm to 250 nm of the powder, firstly pulverized eco-friendly plant stem 50 μm to 1,000 μm powder particles are hydrolyzed, and a total of 3 Grinding into particles of a certain size for 2 days by repeating 4 temperature changes (45 degrees once, 85 degrees twice, 4 degrees 3 times, 60 degrees 4 times) for 6 hours a day for 2 days a day for the pretreatment process.
기계적 분쇄 방식의 한계Limitations of mechanical crushing method
친환경 식물 줄기를 수세하고, 즉시 수차례 커팅 밀을 이용하여 파쇄하였다. 그 결과 균일하게 파쇄되지 않을 뿐 아니라, 기계 칼날에 엉겨 붙고 효율이 크게 떨어졌다. 이에, 동일한 커팅 밀을 이용하지 않고 2차는 제트 밀 방식을 적용하고 이를 수십차례 반복하여, 일정 크기의 입도는 얻을 수 있었지만 50nm ~ 250nm는 아주 극소수만 확인할 수 있었다.The eco-friendly plant stems were washed with water and immediately crushed using a cutting mill several times. As a result, not only was it not crushed uniformly, but it was also stuck to the blade of the machine and the efficiency was greatly reduced. Therefore, without using the same cutting mill, the second jet mill method was applied and repeated dozens of times to obtain a particle size of a certain size, but only a very small number of 50 nm to 250 nm could be confirmed.
상기 가수분해 중 마지막 1일은, 55도에서 65도로 온도를 안정적으로 유지한 상태로, 5A의 전류를 흘려 섬유질 연결고리를 끊는다. 이는, 입자가 너무 크면 제품의 생산이 용이하지 않고, 제품의 물성 저하를 가져올 수 있는 것은 물론, 낮은 비중과 기계적 한계로 인해 원하는 입자크기 만큼 분쇄하지 못하기 때문이다.During the last 1 day of the hydrolysis, a current of 5 A is passed to break the fiber link while maintaining the temperature at 55 degrees to 65 degrees stably. This is because, if the particles are too large, it is not easy to produce the product, and the physical properties of the product may be deteriorated, and the desired particle size cannot be pulverized due to low specific gravity and mechanical limitations.
상기 가수분해 과정과 전류를 투입하는 과정을 포함시킨 이유로는, 강한 섬유질을 함유하고 낮은 비중의 물질을 나노 수준의 입도를 얻기에는, 기계적인 방법으로는 한계가 있기 때문에 자기장으로 분자의 구조를 깨기 위함이다.The reason for including the hydrolysis process and the process of injecting current is to break the molecular structure with a magnetic field because mechanical methods have limitations in obtaining nano-level particle sizes for materials containing strong fibers and low specific gravity. It is for
모든 가수분해 과정을 거친 후 동결 건조를 통해 채집된 분말을, 2차 분쇄하고 그 과정에서 분쇄된 50nm ~ 250nm인 입자의 분말들은 먼저 채집하기 위해, 코안다 효과와 원심분리를 동시에 활용하여 따로 채집을 하고, 그 이상의 입도들은 다시 반복하여 재투입하여 전체 중량의 62%~78%(50nm ~ 250nm인 입자) 분말을 채집하고, 250nm 이상 입자 분말은 반복하여 또다시 가수분해하여, 그 효율성을 높였다. The powders collected through freeze drying after all hydrolysis processes are pulverized for the second time, and the powders of particles of 50 nm to 250 nm pulverized in the process are collected separately by simultaneously utilizing the Coanda effect and centrifugation to collect first. , and particles of greater than 250 nm were repeatedly re-injected to collect powders of 62% to 78% of the total weight (particles of 50 nm to 250 nm), and the powders of particles of 250 nm or more were repeatedly hydrolyzed again to increase the efficiency .
여기에서 동결 건조를 거치는 이유로는, 친환경 식물 줄기가 갖고 있는 본연의 성질이 고온에서 훼손되지 않고 그대로 보존하기 위함이며, 마찰의 의한 분쇄 과정속에서 탄화되지 않게 하기 위함이다.The reason for freeze-drying here is to preserve the natural properties of eco-friendly plant stems without being damaged at high temperatures, and to prevent them from being carbonized in the grinding process by friction.
이때 상기 합성수지는 폴리에틸렌, 폴리프로필렌, 폴리스틸렌, 피브이씨, 에이비에스, 폴리아미드, 폴리카보네이트, 테레프탈산 폴리에스테르, 에틸렌 비닐 아세테이트 코폴리머 및 에틸렌 아크릴릭 에시드로 이루어진 것이고, 상기 첨가 중합물은 목재를 비롯하여 다양한 친환경 식물의 줄기 부문을 분쇄한 50nm ~ 250nm인 분말이다.At this time, the synthetic resin is made of polyethylene, polypropylene, polystyrene, PVC, ABS, polyamide, polycarbonate, terephthalic acid polyester, ethylene vinyl acetate copolymer, and ethylene acrylic acid, and the addition polymer is a variety of eco-friendly materials including wood It is a powder with a size of 50 nm to 250 nm by crushing the stem part of a plant.
상기 분말과 합성수지의 중합 과정 중, 공기속 수분의 침투를 막기 위하여 Master Chip 제조시 순환식 에어 콘베어를 활용하되, 컴파운딩 과정 중 발생하는 가스를 제거하기 위해, 가스배출구를 하단을 제외한 양측에 1M 간격으로 설치하고 진행하여 Master Chip 의 제조한다.During the polymerization process of the powder and synthetic resin, a circulating air conveyor is used when manufacturing Master Chip to prevent penetration of moisture in the air, but in order to remove gas generated during the compounding process, 1M gas outlets are installed on both sides except for the bottom. It is installed at intervals and proceeds to manufacture Master Chip.
그 결과, 상기 첨가 중합을 통해 생산된 Master Chip으로 배합물 Feeder 내부 Caking 현상이 사라졌으며, Flat Chip 형성 및 Strand 표면 거침이 없어졌으며, 열에 의한 탄화현상인 Brown Color에서 줄어드는 결과를 도출하였다.As a result, with the master chip produced through the above addition polymerization, the caking phenomenon inside the compound feeder disappeared, flat chip formation and strand surface roughness disappeared, and brown color, a carbonization phenomenon caused by heat, was reduced.
Claims (4)
상기 입자의 평균 입도는 50nm ~ 250nm이며, 기존 합성수지에 첨가 중합하여 Master Chip 제조, 친환경 식물의 줄기를 이용한 바이오 복합재 및 그 제조 방법.
As powdered particles obtained by pulverizing eco-friendly plant stems,
The average particle size of the particles is 50 nm to 250 nm, and the master chip is prepared by addition polymerization to an existing synthetic resin, a biocomposite material using the stem of an eco-friendly plant, and a method for manufacturing the same.
상기 분말 상태의 입자는, 평균입도가 50㎛ ~ 1,000㎛ 분말 상태의 입자를 가수분해 과정에서 15A의 전류를 4시간 흐르게 하여 기존 섬유질의 분자 구조를 변형하는 1단계, 를 더 포함하는 친환경 식물의 줄기를 이용한 바이오 복합재 및 그 제조 방법.
The method of claim 1,
The powdery particles, the first step of modifying the molecular structure of the existing fiber by flowing a current of 15A for 4 hours in the hydrolysis process of the powdery particles having an average particle size of 50㎛ ~ 1,000㎛, eco-friendly plants further comprising Biocomposites using stems and their manufacturing methods.
상기 변형된 섬유질 분자 구조에, 코안다 효과를 적용한 나노 분쇄하는 2단계, 를 더 포함하는 친환경 식물의 줄기를 이용한 바이오 복합재 및 그 제조 방법.
The method of claim 1,
A biocomposite using eco-friendly plant stems and a method for manufacturing the same, further comprising a second step of nano-pulverizing the modified fibrous molecular structure by applying the Coanda effect.
상기 나노화된 분말 입자를, 기존 합성수지에 3% ~ 20% 첨가 중합하고, 공기속 수분의 침투를 막기 위하여 Master Chip 제조시 순환식 에어 콘베어를 활용하되, 컴파운딩 과정 중 발생하는 가스를 제거하기 위해, 가스배출구를 하단을 제외한 양측에 1M 간격으로 설치하고 진행하여 Master Chip 의 제조, 를 더 포함하는 친환경 식물의 줄기를 이용한 바이오 복합재 및 그 제조 방법.
The method of claim 1,
The nano-sized powder particles are polymerized by adding 3% to 20% to the existing synthetic resin, and in order to prevent the penetration of moisture in the air, a circulating air conveyor is used when manufacturing the Master Chip, but in order to remove the gas generated during the compounding process , Gas outlets are installed at intervals of 1M on both sides except for the bottom, and manufacturing of Master Chips is performed.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120063644A (en) | 2010-12-08 | 2012-06-18 | 현대중공업 주식회사 | Stator core torque fixed apparatus for 2 poles motor |
| KR20200100069A (en) | 2017-12-20 | 2020-08-25 | 퀄컴 인코포레이티드 | Systems for communicating with unrelated stations |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120063644A (en) | 2010-12-08 | 2012-06-18 | 현대중공업 주식회사 | Stator core torque fixed apparatus for 2 poles motor |
| KR20200100069A (en) | 2017-12-20 | 2020-08-25 | 퀄컴 인코포레이티드 | Systems for communicating with unrelated stations |
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