Surface-acylated lignin-rich fines as strength and functional fillers for micro/nano fibrillated cellulose.

Surface acylation of softwood thermomechanical pulp (TMP) fines (<76 μm) using succinic anhydride (SA) and imidazole effectively introduced carboxyl groups to both lignin and carbohydrate components, increasing the total carboxyl content to 0.6 mmol/…

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