Pine Bark as a Lignocellulosic Resource for Polyurethane Production: An Evaluation.

Polymers (Basel) · 2025 · PMC12787510 · PMID 41516882

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a slight trendno p-value reported

Moreover, within this range of pine bark filler content, a slight trend toward increased activity of the filled PUR foam systems compared with the initial non-filled composition was noticeable ( Figure 15 ).

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a clear trendno p-value reported

The bio-polyol synthesized at 150 °C with PC/OH = 3 and DBU/OH = 0.05 showed a clear trend of improvement in compressive properties, confirming these parameters as optimal for pine bark extractive-based bio-polyol synthesis.

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