THESIS - ROC CH ... - FINAL - resubmission.pdf - University of Guelph
THESIS - ROC CH ... - FINAL - resubmission.pdf - University of Guelph
THESIS - ROC CH ... - FINAL - resubmission.pdf - University of Guelph
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5 10 15 20 25 30 35 40 45<br />
Figure 5.8: Wide angle x-ray diffraction pattern <strong>of</strong> fibers obtained after specific stages through the<br />
extraction process.<br />
5.4.5 CONCLUSION<br />
2Ɵ (deg)<br />
This experiment revealed that a chemi-mechanical process was able to break down soy<br />
stems and pods into micro and nano sized fibers. Two fractions <strong>of</strong> fibers were obtained from the<br />
process with different characteristics in size distribution, chemical composition and crystallinity.<br />
Isolated solely from the acid hydrolysis was a fiber fraction comprising mainly <strong>of</strong> nano-sized<br />
diameters as observed via TEM analysis. It had crystalline characteristics according to WAXD<br />
and may not be fully composed <strong>of</strong> cellulose as observed using FTIR. Pectin and hemicellulose<br />
residues were observed throughout the FTIR spectra. The bulk fraction obtained after both<br />
62<br />
SNF<br />
SMF<br />
Alkaline 2<br />
Acid<br />
Raw SF