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OALib Journal期刊
ISSN: 2333-9721
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氧等离子体处理对酶解木质素胶合力的影响
DOI: 10.3969/j.jssn.1000-2006.2012.05.021, PP. 115-119
Keywords: 氧等离子体,酶解木质素,胶合力,自由基,木质复合材料
Abstract:
用氧等离子体处理酶解木质素，分析酶解木质素表面化学成分及自由基浓度的变化，研究氧等离子体处理对酶解木质素/杨木纤维复合材料性能的影响，探索氧等离子体对酶解木质素胶合力的影响。结果表明：经氧等离子体处理后，酶解木质素表面？m？(o)/？m？(c)提高了56.0%，大量含氧官能团（如―oh、―coo等）被引入酶解木质素表面。同时，酶解木质素表面自由基浓度提高了27.4%。氧等离子体处理使酶解木质素/杨木纤维复合材料的物理力学性能得到了改善，其中内结合强度提高了30.2%，静曲强度增加了14.2%，吸水厚度膨胀率下降了29.0%。
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