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首页> 外文期刊>RSC Advances >Fabrication and characterization of a novel corn straw/modified ammonium lignosulfonate bio-composite strengthened by polyethylenimine pretreatment
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Fabrication and characterization of a novel corn straw/modified ammonium lignosulfonate bio-composite strengthened by polyethylenimine pretreatment

机译：用聚乙烯亚胺预处理加强新型玉米秸秆/改性铵木质素磺酸盐生物复合材料的制造与表征

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This study focuses on the development of novel bio-composites via the pretreatment of corn straw particles (PCSP) and modified ammonium lignosulfonate (MAL) as a binder. The corn stalk particles (CSP) were pretreated with polyethylenimine (PEI) to enhance compatibility. The effects of PEI dosage on the mechanical properties and dimensional stability were examined, where PEI pretreatment improved the interfacial properties of MAL and CSP considerably. The optimum values of the PCSP/MAL composites complied with the Chinese national standard for load-bearing particleboard. Furthermore, the results confirmed that PEI pretreatment resulted in good surface activity and exhibited a favorable effect on the crystallinity of the PCSP/MAL composites. The storage moduli E ′ and tan? δ peak of the PCSP/MAL composites were considerably greater than those of the CSP/MAL composites. The fractured morphology of the composites clearly showed that PEI pretreatment improves the interfacial adhesion of MAL and CSP.
机译：本研究专注于通过玉米秸秆颗粒（PCSP）的预处理和改性铵硫磺酸铵（MAL）作为粘合剂的新型生物复合材料的开发。用聚乙烯亚胺（PEI）预处理玉米秸秆颗粒（CSP），以增强相容性。检查PEI剂量对机械性能和尺寸稳定性的影响，其中PEI预处理显着改善了MAL和CSP的界面性质。 PCSP / MAL复合材料的最佳值符合中国国家负载刨花板的国家标准。此外，结果证实PEI预处理导致表面活性良好，并对PCSP / MAL复合材料的结晶度表现出有利的影响。储存模数和棕褐色？ PCSP / MAL复合材料的Δ峰值大大大于CSP / MAL复合材料的峰值。复合材料的裂缝形态清楚地表明，PEI预处理改善了MAL和CSP的界面粘附。

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