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1. WO2018051095 - METHOD OF FORMING GRAPHENE NANOPLATELETS, GRAPHENE NANOPLATELETS SO-OBTAINED AND COMPOSITES COMPRISING SAID NANOPLATELETS

Publication Number WO/2018/051095
Publication Date 22.03.2018
International Application No. PCT/GB2017/052712
International Filing Date 14.09.2017
IPC
C01B 32/19 2017.01
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
32Carbon; Compounds thereof
15Nanosized carbon materials
182Graphene
184Preparation
19by exfoliation
C01B 32/225 2017.01
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
32Carbon; Compounds thereof
20Graphite
21After-treatment
22Intercalation
225Expansion; Exfoliation
C08K 3/04 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
KUSE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
3Use of inorganic substances as compounding ingredients
02Elements
04Carbon
C08K 7/14 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
KUSE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
7Use of ingredients characterised by shape
02Fibres or whiskers
04inorganic
14Glass
CPC
C01B 2204/04
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
2204Structure or properties of graphene
04Specific amount of layers or specific thickness
C01B 2204/065
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
2204Structure or properties of graphene
06Graphene nanoribbons
065characterized by their width or by their aspect ratio
C01B 2204/32
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
2204Structure or properties of graphene
20Graphene characterized by its properties
32Size or surface area
C01B 32/19
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
32Carbon; Compounds thereof
15Nano-sized carbon materials
182Graphene
184Preparation
19by exfoliation
C01B 32/225
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
32Carbon; Compounds thereof
20Graphite
21After-treatment
22Intercalation
225Expansion; Exfoliation
C08J 2363/00
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
2363Characterised by the use of epoxy resins; Derivatives of epoxy resins
Applicants
  • UNIVERSITY OF SUNDERLAND [GB]/[GB]
  • DELTA-TECH S.P.A [IT]/[IT]
  • NANESA S.R.L.
Inventors
  • ELMARAKBI, Ahmed
  • BERTOCCHI, Francesco
  • CRISTIANO, Francesco
  • INNOCENTE, Franco
  • CIAPPA, Alessandra
  • VILLARO, Elvira
Agents
  • HGF LIMITED (LEEDS)
Priority Data
1615688.715.09.2016GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD OF FORMING GRAPHENE NANOPLATELETS, GRAPHENE NANOPLATELETS SO-OBTAINED AND COMPOSITES COMPRISING SAID NANOPLATELETS
(FR) PROCÉDÉ DE FORMATION DE NANOPLAQUETTES DE GRAPHÈNE, NANOPLAQUETTES DE GRAPHÈNE AINSI OBTENUES ET COMPOSITES COMPRENANT LESDITES NANOPLAQUETTES
Abstract
(EN)
Provided is a method of forming graphene nanoplatelets, comprising: providing an aqueous suspension comprising expanded graphite; and subjecting the suspension to exfoliation, wherein the exfoliation comprises sequential treatments of sonication and high shear mixing, thereby forming graphene nanoplatelets. Also provided is a method of forming an expanded graphite, comprising obtaining an expandable graphite and heating the expandable graphite in flowing gas at a temperature of at least 600°C. Also provided are graphene nanoplatelets obtainable or obtained by the said method of forming graphene nanoplatelets, a plastics composite comprising the graphene nanoplatelets, a vehicle or structure comprising such a composite, and use of such graphene nanoplatelets in a plastics composite.
(FR)
L'invention concerne un procédé de formation de nanoplaquettes de graphène, comprenant les étapes consistant à : fournir une suspension aqueuse comprenant du graphite expansé; et soumettre la suspension à une exfoliation, l'exfoliation comprenant des traitements séquentiels de sonication et de mélange à cisaillement élevé, formant ainsi des nanoplaquettes de graphène. L'invention concerne également un procédé de formation d'un graphite expansé, comprenant l'obtention d'un graphite expansible et le chauffage du graphite expansible dans un gaz en écoulement à une température d'au moins 600 °C. L'invention concerne également des nanoplaquettes de graphène pouvant être obtenues ou étant obtenues par ledit procédé de formation de nanoplaquettes de graphène, un composite plastique comprenant les nanoplaquettes de graphène, un véhicule ou une structure comprenant un tel composite, et l'utilisation de telles nanoplaquettes de graphène dans un composite plastique.
Also published as
Latest bibliographic data on file with the International Bureau