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Evaluation of alfa grass soda lignin as a filler for novolak molding powder

机译:评估阿尔法草碱木质素作为酚醛清漆模塑粉的填料

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Behavior of Alpha grass soda lignin was investigated for the preparation of novolak molding powders. Thermal analysis of the different investigated formulations indicated Thai molding powders prepared from Alpha grass soda lignin were more resistant to thermal degradation compared to a standard formulation prepared from wood flour. Limiting oxygen index determined for the different composites confirmed the higher thermal stability of Alpha grass soda lignin composites. Mechanical properties tested either from Shore hardness tests or from impact strength measure-menis revealed a slight decrease of mechanical properties for composites prepared from Alpha grass soda lignin. All these results showed the possibility to replace imported wood flours by locally available Alpha grass soda lignin to obtain phenolic composites with quite similar properties. (c) 2005 Wiley Periodicals, Inc.
机译:研究了阿尔法草苏打木质素用于制备酚醛清漆模塑粉的行为。对不同研究配方的热分析表明,与由木粉制得的标准配方相比,由Alpha草苏打木质素制得的泰国成型粉更耐热降解。为不同的复合材料确定的极限氧指数证实了Alpha草苏打木质素复合材料的更高的热稳定性。通过肖氏硬度测试或冲击强度测量法测试的机械性能表明,由阿尔法草碱木质素制备的复合材料的机械性能略有下降。所有这些结果表明,可以用当地可用的阿尔法草苏打木质素代替进口的木粉,以获得性能非常相似的酚醛复合材料。 (c)2005年Wiley Periodicals,Inc.

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