Carbon nanotube pellets and method for manufacturing same 机翻标题: 暂无翻译,请尝试点击翻译按钮。

公开号/公开日
EP3287189 A1 2018-02-28 [EP3287189] / 2018-02-28
申请号/申请日
2016EP-0886620 / 2016-10-17
发明人
KANG KYUNG YEON;WOO JIHEE;LEE SEUNGYONG;JANG HYUNGSIK;CHO DONG HYUN;
申请人
LG CHEM;
主分类号
IPC分类号
B01F-007/08B30B-011/22B30B-011/24
摘要
(EP3287189) The method for producing carbon nanotube pellets according to the present invention can reduce the particle size of the carbon nanotubes contained in the pellet by a repetitive extrusion process to produce pellets having improved dispersion characteristics in a solvent.  The present invention can improve the problems of the change of the content generated by scattering of powders and safety issues by using carbon nanotubes in the form of pellet.  And since the density of the pellet form is higher than that of the powder form, transport, transfer and improvement become easier.  Therefore, it can be more effectively applied to the manufacturing of composite materials.
机翻摘要
暂无翻译结果,您可以尝试点击头部的翻译按钮。
地址
代理人
代理机构
;
优先权号
2016KR-0006986 2016-01-20 2016WO-KR11616 2016-10-17
主权利要求
(EP3287189) 1. A method for producing carbon nanotube pellets comprising the steps of: mixing carbon nanotubes and a solvent to prepare a carbon nanotube paste; and extruding the carbon nanotube paste into pellets, wherein the extrusion is repeated twice or more. 2. The method for producing carbon nanotube pellets according to claim 1, wherein a particle size of the carbon nanotubes contained in the pellet is decreased in proportion to the number of times of extrusion. 3. The method for producing carbon nanotube pellets according to claim 2, wherein a decreasing ratio of D90 of the carbon nanotubes according the number of times of extrusion satisfies the following Expression 2: (Equation image 7 not included in text) wherein x is the number of times of extrusion of the carbon nanotubes, and y is D90 (micron m) of the carbon nanotubes. 4. The method for producing carbon nanotube pellets according to claim 1, wherein the method comprises the steps of: premixing the carbon nanotubes and the solvent; mixing the premixed solution of carbon nanotubes in a screw mixer; and transferring the mixed solution of carbon nanotubes from the screw mixer to an extruder and extruding the mixture into pellets. 5. The method for producing carbon nanotube pellets according to claim 4, wherein the method further comprises the steps of: mixing carbon nanotubes and a solvent to prepare a first paste (kneading); adding additional predetermined solvent to the first paste to prepare a second paste (paste); and adding a solvent to the second paste to prepare a premixed solution (dilution). 6. The method for producing carbon nanotube pellets according to claim 5, wherein the stirring time in the first step (kneading) and the second step (paste) is 2 hours or less, respectively. 7. The method for producing carbon nanotube pellets according to claim 5, wherein an average particle size of the carbon nanotubes after the first step (kneading) is 20 micron m or less. 8. The method for producing carbon nanotube pellets according to claim 4, wherein D90 of the carbon nanotubes contained in the carbon nanotube pellets produced by the method is 50 micron m or less. 9. The method for producing carbon nanotube pellets according to claim 1, wherein the solvent is at least one selected from the group consisting of water, alcohols, Cellosolve, ketones, amides, esters, ethers, aromatic hydrocarbons such as benzene or toluene, and aliphatic hydrocarbons such as hexane or heptane. 10. Carbon nanotube pellets produced by the method of any one of claims 1 to 9. 11. Carbon nanotube pellets according to claim 10, wherein the pellets has a diameter of 3 mm to 20 mm and a length of 10 mm to 200 mm. 12. Carbon nanotube pellets according to claim 10, wherein a compression ratio of the carbon nanotubes contained in the pellets satisfies by the following Expression 1. (Equation image 8 not included in text)
法律状态
(EP3287189) LEGAL DETAILS FOR EP3287189  Actual or expected expiration date=2036-10-17    Legal state=ALIVE    Status=PENDING     Event publication date=2016-10-17  Event code=EP/APP  Event indicator=Pos  Event type=Examination events  Application details  Application country=EP EP16886620  Application date=2016-10-17  Standardized application number=2016EP-0886620     Event publication date=2018-02-28  Event code=EP/A1  Event type=Examination events  Application published with search report  Publication country=EP  Publication number=EP3287189  Publication stage Code=A1  Publication date=2018-02-28  Standardized publication number=EP3287189     Event publication date=2018-02-28  Event code=EP/17P  Event indicator=Pos  Event type=Examination events  Request for examination filed Pruefungsantrag gestellt  Effective date of the event=2017-11-24     Event publication date=2018-02-28  Event code=EP/AK  Event indicator=Pos  Event type=Designated states  Designated contracting states: Benannte vertragsstaaten AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR    Event publication date=2018-02-28  Event code=EP/AV  Event indicator=Pos  Event type=Designated states  Request for validation of the European patent in MA MD    Event publication date=2018-02-28  Event code=EP/AX  Event indicator=Pos  Event type=Designated states  Extension of the European patent to Request for extension of the european patent to BA ME
专利类型码
A1
国别省市代码
若您需要申请原文,请登录。

最新评论

暂无评论。

登录后可以发表评论

意见反馈
返回顶部