Özet:

This study was conducted to evaluate the suitability of using hexagonal boron nitride (hBN) as reinforcement in natural fibres obtained from hazelnut shell (F) and poppy straw (H). Raw materials were treated with alkali to enrich the cellulose content by removing lignin and hemicellulose. The nanobiocomposite synthesis was performed with 4% and 8% of hBN. Lignin, cellulose and hemicelluloses contents of biomass were determined. Cellulose content was almost increased 3-fold and 2-fold after pretreatment of hazelnut shell (FCell) and poppy straw (HCell), respectively. Strong bands at 812 and 1380cm-1 corresponding to hBN were observed in the FTIR. SEM images showed that hBN is retained on the pretreated natural fibres. Adsorbed hBN on the structure was highest in the microcrystalline cellulose (Cell) (91.5%), followed by FCell (80.5%) and HCell (50.5%). Nanobiocomposites containing lignocellulose and hBN may be recommended for use in polymer matrix structures where thermal properties need to be altered.

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