用超声波对棉浆粕纤维素进行活化处理,通过SEM、FTIR、WAXD研究了处理前后纤维素的形态、结构和结晶性能,并观测了其溶解情况和降解情况.结果表明,超声波作用能有效地破坏纤维素分子中的氢键,降低其结晶程度和规整度,而且能提高纤维素在LiC/DMAc溶剂体系中溶解性能的同时基本不造成降解.对超声波处理纤维素的作用机理进行了初步探讨.
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