Low viscosity cm-mfc
AssigneeSuzano S.A.
InventorsBruna Papa SPADAFORA, Estevão Frigini MAI, Heloísa Ogushi Romeiro RAMIRES
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Abstract
The present invention relates to a low viscosity CM-MFC comprising a substitution degree of 0.2-0.29, preferably with a viscosity between 6700-9900 cP with a spindle R4 at 100 rpm at 1% w/w and a viscosity between 65-85 cP with a spindle R4 at 10 rpm at 0.8% w/w and a method for producing a low viscosity CM-MFC, comprising: defibrating the resulting CMC with a rotating disc and a stationary rotor with a water dispersion of 4-10% w/w to obtain a CM-MFC at an extent that the CM-MFC fiber average diameter is between 0.8 μm to 8 μm.
Claims18
A low viscosity CM-MFC comprising a substitution degree of 0.2-0.29.
The CM-MFC from claim 12, wherein the originating cellulose has a crystallinity degree is 52%-62%.
A method for producing a low viscosity CM-MFC, comprising steps of:
- defibrating the resulting CMC with a rotating disc and a stationary rotor with a water dispersion of 4-10% w/w to obtain a CM-MFC at an extent that the CM-MFC fiber average diameter is between 0.8 μm to 8 μm.
The method according to claim 16, wherein the CM-MFC from claim 19, wherein the CM-MFC comprises a viscosity between 6700-9900 cP with a spindle R4 at 100 rpm at 6% w/w.
The method according to claim 19, wherein the CM-MFC has a degree of crystallinity of 38-49%.
Dependencies are inferred from the claim text.