Figure 3.
Scanning electron image and confocal microscopy image of alkaline peroxide mechanical pulp with different metal chloride-assisted hydrotropic pretreatments. (a) APMP; (b) APMP–P; (c) APMP–P–FeCl3; (d) APMP–P–AlCl3; (e) APMP–P–CuCl2.
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