Spray freeze-dried nanoparticles and method of use thereof
AssigneeThe Royal Institution for the Advancement of Learning/Mcgill University
InventorsMusa KAMAL, Vahid KHOSHKAVA
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Abstract
The present disclosure relates to a process for reducing particle agglomeration and/or increasing porosity of agglomerated particles, a method for enhancing dispersion of nanoparticles in a polymer matrix, and thermoplastic or thermoset nanocomposites comprising nanoparticles.
Claims13
A process for producing porous agglomerated nanoparticles comprising:
- i) dispersing an agglomerated material in a liquid medium to provide a dispersion;
- and
- ii) spray freeze-drying said dispersion.
Spray freeze-dried nanocrystalline cellulose (SFD-NCC) wherein the ratio of Brunauer-Emmett-Teller (BET) surface area of SFD-NCC over spray dried nanocrystalline cellulose (SD-NCC) or freeze-dried nanocrystalline cellulose (FD-NCC) is:
- SFD
-
- -
-
- NCC
- SD
-
- -
-
- NCC
-
-
- or
-
-
- FD
-
- -
-
- NCC
- ≥
- about
-
-
- 10.
A process for preparing a polymer nanocomposite comprising:
- i) providing a spray freeze-dried nanoparticle agglomerate;
- and
- ii) dispersing said spray freeze-dried nanoparticles in said polymer.
Dependencies are inferred from the claim text.