Strzemiecka Beata, Klapiszewski Łukasz, Jamrozik Artur, Szalaty Tadeusz J, Matykiewicz Danuta, Sterzyński Tomasz, Voelkel Adam, Jesionowski Teofil
Faculty of Chemical Technology, Institute of Chemical Technology and Engineering, Poznan University of Technology, Berdychowo 4, Poznan PL-60965, Poland.
Faculty of Construction Engineering and Management, Institute of Materials Technology, Poznan University of Technology, Piotrowo 3, Poznan PL-61138, Poland.
Materials (Basel). 2016 Jun 25;9(7):517. doi: 10.3390/ma9070517.
Functional lignin-SiO₂ hybrid fillers were prepared for potential application in binders for phenolic resins, and their chemical structure was characterized. The properties of these fillers and of composites obtained from them with phenolic resin were compared with those of systems with lignin or silica alone. The chemical structure of the materials was investigated by Fourier transform infrared spectroscopy (FT-IR) and carbon-13 nuclear magnetic resonance spectroscopy (C CP MAS NMR). The thermal stability of the new functional fillers was examined by thermogravimetric analysis-mass spectrometry (TG-MS). Thermo-mechanical properties of the lignin-silica hybrids and resin systems were investigated by dynamic mechanical thermal analysis (DMTA). The DMTA results showed that abrasive composites with lignin-SiO₂ fillers have better thermo-mechanical properties than systems with silica alone. Thus, fillers based on lignin might provide new, promising properties for the abrasive industry, combining the good properties of lignin as a plasticizer and of silica as a filler improving mechanical properties.
制备了功能性木质素 - 二氧化硅杂化填料，用于酚醛树脂粘合剂的潜在应用，并对其化学结构进行了表征。将这些填料以及由它们与酚醛树脂制成的复合材料的性能与仅含有木质素或二氧化硅的体系的性能进行了比较。通过傅里叶变换红外光谱（FT - IR）和碳 - 13核磁共振光谱（C CP MAS NMR）研究了材料的化学结构。通过热重分析 - 质谱联用（TG - MS）检测了新型功能性填料的热稳定性。通过动态热机械分析（DMTA）研究了木质素 - 二氧化硅杂化材料和树脂体系的热机械性能。DMTA结果表明，含有木质素 - 二氧化硅填料的磨料复合材料比仅含二氧化硅的体系具有更好的热机械性能。因此，基于木质素的填料可能为磨料行业提供新的、有前景的性能，结合了木质素作为增塑剂的良好性能和二氧化硅作为改善机械性能的填料的良好性能。
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