In this study, basalt and/or beech wood fibers were treated with vinyltrimethoxysilane or compatibilized by maleic anhydride‐ grafted polypropylene (MAPP) to produce hybrid polylactic acid (PLA) biocomposites. Twin‐screw extruder was used to produce biocomposites, following by a hot press to form samples. Physical and mechanical properties of composites that were produced from both treated and untreated fibers were compared. Chemical, morphological, and thermal analysis of biocomposites were analyzed with TGA, FTIR and SEM, respectively. The results showed that silane treated basalt/wood fiber reinforced PLA (PBWS) and silane treated basalt reinforced PLA (PBS) have significantly better flexural strength than neat PLA. Besides, basalt reinforced bio‐composites except PBW3 and PBWM variations have significantly superior impact strength than neat PLA. Utilization of compatibilizers also reduced thickness swelling and water uptake features of biocomposites. All the above experimental data showed that the utilization of silane compatibilizer has better impact on properties than MAPP for such wood/basalt hybrid composite.Highlights Hybrid biocomposites with wood and basalt fibers by using coupling agents were prepared for the first time. Hybridization of organic and inorganic fibers gave promising results. Silane and maleic anhydride compatibilization improves physical properties. Vinyltrimethoxy silane grafted basalt fiber improves flexural strength significantly. Silanization of wood or basalt fibers enhances significantly the impact strength.

中文翻译：

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由木材和硅烷处理的玄武岩纤维增强或由马来酸酐接枝聚丙烯（MAPP）增容的杂化 PLA 生物复合材料的制备和表征

在这项研究中，玄武岩和/或山毛榉木纤维经过乙烯基三甲氧基硅烷处理或通过马来酸酐接枝聚丙烯（MAPP）增容，以生产杂化聚乳酸（PLA）生物复合材料。双螺杆挤出机用于生产生物复合材料，然后通过热压机形成样品。比较了由经过处理和未经处理的纤维生产的复合材料的物理和机械性能。分别使用 TGA、FTIR 和 SEM 对生物复合材料进行化学、形态和热分析。结果表明，硅烷处理的玄武岩/木纤维增强 PLA (PBWS) 和硅烷处理的玄武岩增强 PLA (PBS) 的弯曲强度明显优于纯 PLA。此外，玄武岩增强生物复合材料（PBW3 和 PBWM 变体除外）的冲击强度明显优于纯 PLA。增容剂的使用还降低了生物复合材料的厚度膨胀和吸水特性。上述所有实验数据表明，对于这种木材/玄武岩杂化复合材料，硅烷增容剂的使用比MAPP对性能的影响更好。 首次使用偶联剂制备了木材和玄武岩纤维的混合生物复合材料。 有机和无机纤维​​的杂化取得了有希望的结果。 硅烷和马来酸酐增容可改善物理性能。 乙烯基三甲氧基硅烷接枝玄武岩纤维显着提高弯曲强度。 木材或玄武岩纤维的硅烷化可显着提高冲击强度。