International Journal of Polymer Science / 2017 / Article / Tab 1

Research Article

Characterization of Biobased Polyurethane Foams Employing Lignin Fractionated from Microwave Liquefied Switchgrass

Table 1

Cell diameter and number of cells by surface area () of different polyurethane foams.

IndexLignin content (%)
051015

Diameter (μm)513.4 ± 112.7523.1 ± 89.8521.3 ± 130.7838.8 ± 167.1
Number of cells by surface area () (N/mm2)1.981.821.871.02

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