WO2020009367A1 - Procédé de fabrication de produit à raideur accentuée à l'aide de nanotubes de carbone et produit à raideur accentuée ainsi fabriqué - Google Patents

Procédé de fabrication de produit à raideur accentuée à l'aide de nanotubes de carbone et produit à raideur accentuée ainsi fabriqué Download PDF

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Publication number
WO2020009367A1
WO2020009367A1 PCT/KR2019/007731 KR2019007731W WO2020009367A1 WO 2020009367 A1 WO2020009367 A1 WO 2020009367A1 KR 2019007731 W KR2019007731 W KR 2019007731W WO 2020009367 A1 WO2020009367 A1 WO 2020009367A1
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Prior art keywords
carbon nanotubes
carbon nanotube
mulberry leaves
mixed solution
stiffness
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English (en)
Korean (ko)
Inventor
최동림
허선자
최대통
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
    • D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
    • D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01B—MECHANICAL TREATMENT OF NATURAL FIBROUS OR FILAMENTARY MATERIAL TO OBTAIN FIBRES OF FILAMENTS, e.g. FOR SPINNING
    • D01B1/00—Mechanical separation of fibres from plant material, e.g. seeds, leaves, stalks

Definitions

  • the present invention relates to a method for producing a rigid reinforced product using carbon nanotubes and to a rigid reinforced product produced by the present invention, and more particularly, by supplying carbon nanotubes and water to plants and producing products using the plants.
  • the present invention relates to a method for producing a rigid reinforced product using carbon nanotubes capable of producing a product having enhanced rigidity and other physical properties, and a rigid reinforced product manufactured thereby.
  • Carbon nanotubes are nanomaterials with excellent mechanical strength, and the tensile strength of one strand is up to 150 GPa.
  • the tensile strength of the carbon nanotube fibers is very weak compared to the carbon nanotubes, and is generally 2 GPa or less.
  • Carbon nanotube fibers are composed of numerous carbon nanotubes, but they are connected between the walls and the walls of carbon nanotubes by van der Waals forces, weak molecular bonds.
  • Physical methods include shrinking the carbon nanotube fibers by spraying a solvent on the carbon nanotube fibers or dipping the carbon nanotube fibers in a solvent. Through this, as the distance between the carbon nanotubes is narrowed to increase the van der Waals force, the strength of the carbon nanotube fibers can be increased.
  • the present invention provides a method for producing a rigid reinforced product using carbon nanotubes and carbon nanotubes that can supply carbon nanotubes and water to plants and produce products using the plants, thereby producing products with enhanced rigidity and other physical properties. To provide rigid reinforced products.
  • Method for producing a rigid reinforced product using carbon nanotubes is to mix the carbon nanotube powder in a dispersing solvent, to disperse the carbon nanotube powder by microwave treatment to the mixed solution, the carbon nanotube powder is dispersed
  • the mixed solution was supplied to the mulberry leaves, and after separating the mulberry leaves supplied with the mixed solution, and dried the mulberry leaves, using the dried mulberry leaves as food for silkworms to obtain a silkworm cocoon, the silkworm Manufacturing the yarn using cocoons.
  • the microwave treatment is maintained at a temperature of 15 to 20 °C after the mixed solution 5 to 5 to a rotational speed of 20,000 to 25,000 rpm It proceeds by irradiating a microwave of 800 to 1000W for 10 minutes, the drying of the mulberry leaves may be dried for 3 to 6 hours in a dryer maintained at a temperature of 20 to 25 °C and humidity 35 to 45%.
  • the present invention includes a rigid reinforced product using carbon nanotubes prepared by the above-described manufacturing method.
  • the method for producing a rigid reinforced product using carbon nanotubes according to the present invention can supply a carbon nanotube and water to a plant, and produce a product using the plant to produce a product having enhanced rigidity and other physical properties.
  • FIG. 1 is a view schematically showing an apparatus for manufacturing a solvent in which carbon nanotubes are dispersed according to another embodiment of the inventive concept.
  • a method of manufacturing a rigid reinforced product using carbon nanotubes is provided by supplying carbon nanotubes and water to a plant and producing a product using the plant, thereby improving rigidity and other physical properties. Produce a product.
  • carbon nanotubes may be mixed with a dispersion solvent.
  • the carbon nanotube (CNT) is a carbon allotrope made of carbon present in a large amount, and one carbon is combined with another carbon atom and a hexagonal honeycomb pattern to form a tube, and the diameter of the tube is nanometers ( is known to be a very small region of matter).
  • Carbon nanotubes are single-walled carbon nanotubes (SWCNTs) and single-walled carbon nanotubes (SWCNT) in which a single layer of graphite is rolled up and connected to one another according to synthetic conditions.
  • SWCNTs single-walled carbon nanotubes
  • SWCNT single-walled carbon nanotubes
  • t-MWCNT thin multiwalled carbon nanotube
  • MWCNT thin multiwalled carbon nanotube Classified as
  • Carbon nanotubes are physically robust (eg, about 100 times stronger than steel), have excellent chemical stability, high thermal conductivity, excellent mechanical properties, electrical selectivity, excellent field emission characteristics, high efficiency hydrogen storage media, etc. It is known as a perfect new material with few defects in existing materials.
  • the carbon nanotubes may be carbon nanotube powder (powder), and the dispersion solvent may be used to disperse the carbon nanotube powder and supply it to plants, and water may be used as the dispersion solvent. .
  • the mixed solution can be dispersed by microwave treatment.
  • the microwave treatment may be applied to further promote the dispersion of carbon nanotube powder in the mixed solution.
  • the microwave treatment may be performed at a rotational speed of 20,000 to 25,000 rpm after maintaining the mixed solution at a temperature of 15 to 20 ° C. It can proceed by irradiating a microwave of 800-1000W for 5-10 minutes.
  • the mixed solution in which the carbon nanotube powder is dispersed may be supplied to the plant.
  • the plant to which the mixed solution in which the carbon nanotube powder is dispersed may be supplied as a mulberry.
  • the mulberry may be sprayed on the leaves of the mulberry by spraying the mixed solution in which the carbon nanotube powder is dispersed for 5 to 20 days. It is possible to supply a mixed solution of carbon nanotube powder dispersed in the leaves.
  • the mulberry leaves may be dried.
  • Drying of the mulberry leaves may be carried out in a dryer in which a constant temperature and humidity are maintained in order to prevent chlorophyll of the mulberry leaves from being destroyed and the fragrance of the mulberry leaves disappears, for example, drying of the mulberry leaves Drying may be carried out for 3 to 6 hours in a dryer maintained at a temperature of 20-25 ° C. and a humidity of 35-45%.
  • the cocoon can be obtained by using the dried mulberry leaves as food for silkworms.
  • the method for obtaining silkworm cocoon using the dried mulberry leaves as the food for the silkworm is a well-known technique, and a detailed description thereof will be omitted for clarity and convenience of the present invention.
  • the silkworm cocoon can be used to manufacture a known product such as a yarn (silk thread) or a fiber (cloth).
  • the method for manufacturing a known product such as yarn or fiber (cloth) using the cocoon is a well-known technique, for the sake of clarity and convenience of the present invention, a detailed description thereof will be omitted.
  • the technical idea of the present invention is not limited to the mulberry leaf.
  • it can be applied to various plants that can be commercialized, and can also supply a mixed solution in which carbon nanotube powder is dispersed by spraying not only the leaves of the plant but also stems, roots, and shells.
  • the technical idea of the present invention is to inject (inject) the mixed solution in which the carbon nanotube powder is dispersed by using injection or the like, in addition to spraying and supplying the mixed solution in which the carbon nanotube powder is dispersed. It is also possible to supply a mixed solution in which the tube powder is dispersed.
  • the technical idea of the present invention to improve the rigidity of the product manufactured using the plant by supplying a mixed solution in which carbon nanotube powder is dispersed not only the leaves of the plant, but also stems, roots, shells, etc. as described above. You can.
  • a solvent in which carbon nanotubes are dispersed according to another embodiment of the inventive concept may be prepared using electrolysis as follows.
  • FIG. 1 is a view schematically showing an apparatus for manufacturing a solvent in which carbon nanotubes are dispersed according to another embodiment of the inventive concept.
  • a 1.5 V battery using a silver rod and a platinum rod may be used as a solution in which nano carbon and water are diluted.
  • a rigid reinforced product using carbon nanotubes may be manufactured.
  • a polyethylene terephthalate multifilament yarn was prepared using a cocoon prepared using carbon nanotubes.
  • the cocoon yarn prepared using a spinning oil and carbon nanotubes is mixed with a polyethylene terephthalate chip, and then 1250 denier / 125 filament yarn under spinning conditions in which strength of 93 gf / denier is expressed through a process such as spinning and drawing.
  • a spinning oil and carbon nanotubes is mixed with a polyethylene terephthalate chip, and then 1250 denier / 125 filament yarn under spinning conditions in which strength of 93 gf / denier is expressed through a process such as spinning and drawing.
  • the roller 4 No. 4 temperature is 210 °C.
  • polyethylene terephthalate chip and cocoon yarn was to be included in the weight ratio of 100 parts by weight of polyethylene terephthalate chip and 10 parts by weight of cocoon yarn.
  • Polyethylene terephthalate multifilament yarn was prepared in the same manner as in Example, in the comparative example was prepared a polyethylene terephthalate multifilament yarn without including a cocoon yarn prepared using carbon nanotubes.
  • RV number of drops of sample / number of drops of solvent
  • C represents the concentration of the sample in solution (g / 100ml).
  • the yarn is left for 24 hours in a constant temperature and humidity room under standard conditions, that is, 25 ° C. and 65% RH relative humidity, and the sample is measured by a tensile tester using the ASTM 2256 method.
  • the heat-treated yarn sample was placed in a standard condition (25 ° C., 65% RH) for 1 hour and then heat-treated 5 times per sample by the method of measuring the elongation of the yarn to obtain a result, and then an average value of 5 values was used.
  • the spinneret is treated for 5 hours in a 105 ° C oven to remove moisture or solvent components in the spinneret.
  • the process of heating loss is evaluated by measuring the weight change up to 298 ° C. while heating the spinning oil with TGA (PerkinElmer, model name Pyris 1 TGA) equipment at a temperature of 10 minutes per minute while purging nitrogen gas.
  • TGA PerkinElmer, model name Pyris 1 TGA
  • the yarn according to the embodiment has a higher rigidity retention than the yarn according to the comparative example, it was possible to produce a high rigid polyethylene terephthalate multifilament yarn.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

La présente invention concerne un procédé de fabrication d'un produit à raideur accentuée à l'aide de nanotubes de carbone et un produit à raideur accentuée ainsi fabriqué. Le procédé de fabrication un produit à raideur accentuée à l'aide de nanotubes de carbone selon la présente invention comporte les étapes consistant à: mélanger une poudre de nanotubes de carbone avec un solvant de dispersion; soumettre la solution de mélange à un traitement par micro-ondes pour disperser la poudre de nanotubes de carbone; introduire la solution de mélange, dans laquelle la poudre de nanotubes de carbone a été dispersée, dans des feuilles de mûrier; cueillir et séparer les feuilles de mûrier dans lesquelles la solution de mélange a été introduite, puis sécher les feuilles de mûrier; obtenir un cocon en utilisant les feuilles de mûrier séchées comme aliment pour des verres à soie; et fabriquer un fil en utilisant le cocon. En introduisant des nanotubes de carbone et de l'eau dans une plante et en utilisant la plante pour produire le produit par l'intermédiaire de la caractéristique ci-dessus, la présente invention peut produire un produit présentant une raideur accentuée et d'autres propriétés.
PCT/KR2019/007731 2018-07-02 2019-06-26 Procédé de fabrication de produit à raideur accentuée à l'aide de nanotubes de carbone et produit à raideur accentuée ainsi fabriqué Ceased WO2020009367A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2018-0076770 2018-07-02
KR1020180076770A KR101915439B1 (ko) 2018-07-02 2018-07-02 탄소나노튜브를 이용한 강성 강화 제품의 제조방법 및 이에 의해 제조된 강성 강화 제품

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WO2020009367A1 true WO2020009367A1 (fr) 2020-01-09

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Publication number Priority date Publication date Assignee Title
KR101915439B1 (ko) * 2018-07-02 2018-11-05 최동림 탄소나노튜브를 이용한 강성 강화 제품의 제조방법 및 이에 의해 제조된 강성 강화 제품
CN111172606A (zh) * 2020-03-01 2020-05-19 盐城工业职业技术学院 天然多功能蓖麻蚕平板丝服用材料的制备方法

Citations (4)

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KR20100021332A (ko) * 2008-08-14 2010-02-24 서울대학교산학협력단 강화된 탄소나노튜브
CN103570951A (zh) * 2013-11-14 2014-02-12 东华大学 一种丝素蛋白/氧化石墨烯高浓度共混水溶液的制备方法
KR101808913B1 (ko) * 2015-10-08 2017-12-13 충북대학교 산학협력단 식물추출액을 이용한 그래핀-나노입자 복합체 및 이의 제조방법
KR101915439B1 (ko) * 2018-07-02 2018-11-05 최동림 탄소나노튜브를 이용한 강성 강화 제품의 제조방법 및 이에 의해 제조된 강성 강화 제품

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KR20100021332A (ko) * 2008-08-14 2010-02-24 서울대학교산학협력단 강화된 탄소나노튜브
CN103570951A (zh) * 2013-11-14 2014-02-12 东华大学 一种丝素蛋白/氧化石墨烯高浓度共混水溶液的制备方法
KR101808913B1 (ko) * 2015-10-08 2017-12-13 충북대학교 산학협력단 식물추출액을 이용한 그래핀-나노입자 복합체 및 이의 제조방법
KR101915439B1 (ko) * 2018-07-02 2018-11-05 최동림 탄소나노튜브를 이용한 강성 강화 제품의 제조방법 및 이에 의해 제조된 강성 강화 제품

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ANONYMOUS: "Silkworm fed with carbon makes twice stronger `Super silk thread´", CHOSUNBIZ, 13 October 2016 (2016-10-13), XP055673318, Retrieved from the Internet <URL:http://biz.chosun.com/site/data/html_dir/2016/10/12/2016101203901.html> *

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