AI Article Synopsis
- Enzyme-treated cellulose nanofibrils (CNFs) were produced from bleached kraft pulp to analyze their energy efficiency during refining and spray-drying operations.
- The use of endoglucanase enzymes reduced energy consumption and decreased both the degree of polymerization and viscosity in the CNF refining process.
- When added to a polypropylene (PP) matrix, the enzyme-pretreated SDCNFs improved the strength properties of the composites, confirming their effectiveness compared to previous studies.
Article Abstract
Enzyme-treated cellulose nanofibrils (CNFs) were produced via a lab-scale mass colloider using bleached kraft pulp (BKP) to evaluate their processability and power requirements during refining and spray-drying operations. To evaluate the energy efficiency in the CNF refining process, the net energy consumption, degree of polymerization (DP), and viscosity were determined. Less energy was consumed to attain a given fines level by using the endoglucanase enzymes. The DP and viscosity were also decreased using the enzymes. The morphological properties of the enzyme-pretreated spray-dried CNF powders (SDCNFs) were measured. Subsequently, the enzyme-pretreated SDCNFs were added to a PP matrix with MAPP as a coupling agent. The mixture was then compounded through a co-rotating twin-screw extruder to determine whether the enzyme treatment of the CNFs affects the mechanical properties of the composites. Compared to earlier studies on enhancing PMCs with SDCNF powders, this research investigates the use of enzyme-pretreated SDCNF powders. It was confirmed that the strength properties of PP increased by adding SDCNFs, and the strength properties were maintained after adding enzyme-pretreated SDCNFs.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10610161 | PMC |
| http://dx.doi.org/10.3390/polym15204086 | DOI Listing |
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