NANOPLATELET DISPERSIONS, METHODS FOR THEIR PRODUCTION AND USES THEREOF

• Main Authors: HOWE, Richard Colin Thomson, STONE, Kate Jessie, YANG, Zongyin, NG WEI TAT, Leonard, HASAN, Tawfique, JONES, Christopher Gareth, HU, Guohua
• Format: Patent
• Language: English
• Published: 02.08.2018
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F; COMPOUNDS THEREOF; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; INORGANIC CHEMISTRY; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; NON-METALLIC ELEMENTS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; USE OF MATERIALS AS ADHESIVES; USE OF MATERIALS THEREFOR; WOODSTAINS

A dispersion of nanoplatelets or particles suspended in a carrier liquid is disclosed. The nanoplatelets or particles, e.g. graphene nanoplatelets, are derived from a layered material. The loading amount of nanoplatelets or particles in the dispersion is at least 20 mg nanoplatelets or particles per 1 ml of dispersion. The dispersion optionally further including a dispersant, the volume ratio of dispersant to the nanoplatelets or particles being less than 1:1. A process for manufacturing the dispersion includes mixing the carrier liquid and the nanoplatelets or particles under high shear conditions. The dispersion can be used as an ink system, as a functional additive within an ink, coating or adhesive formulation, and/or in the manufacture of a nanoplatelet-polymer composite or a particle-polymer composite.