Research Article
Effects of Lignin-Derived Polycarboxylic Acids on the Properties of Waterborne Polyurethane Elastomers
Table 5
Tensile strength (σM) and tensile strain at break (εB) of LPCA-WPU elastomers with different loadings of LPCAs.
| LPCA loading | σ M (MPa) | ε B (%) |
| 0 wt% | 13.48 ± 1.73 | 736 ± 108 | 1.0 wt% | 14.93 ± 1.12 | 702 ± 84 | 1.5 wt% | 14.25 ± 1.12 | 673 ± 85 | 2.5 wt% | 18.60 ± 1.37 | 707 ± 31 | 5.0 wt% | 13.96 ± 0.65 | 650 ± 46 | 7.5 wt% | 12.83 ± 1.79 | 679 ± 99 |
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