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杨木粉无胶温压成形复合材料环境友好性评价

DOI: 10.3969/j.issn.1674-0696.2012.03.40, PP. 528-534

Keywords: 杨木粉末基复合材料,无胶温压成形,热脱附-气相色谱/质谱,环保评估,poplarpowder-basedcomposites,warmself-bondingcompaction,TD-GC/MS,environmentassessment

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Abstract:

:?在运用热脱附-气相色谱/质谱(TD-GC/MS)联机技术分析杨木粉末无胶温压成形复合材料在4,60,90和160℃等4个环境温度点的挥发物总离子流图的基础上,采用色谱峰面积归一化法鉴定出杨木粉末基复合材料在各温度下的保留时间及峰面积,进而评价杨木粉末基复合材料的环境友好性。结果表明:在不同温度下,杨木粉末基复合材料挥发物中的有益成分含量明显多于有害成分,在40,60和160℃时,有益成分含量为有害成分含量的6倍以上,90℃时有益成分为有害成分的29倍,环境友好性良好;杨木粉末基复合材料总挥发物种类及有益成分种类、有害成分种类与杨木原粉相应种类大致相当,但有益成分明显增多,有害成分减少,增减幅度较大。说明这类杨木粉末基复合材料不仅无胶温压成形工艺具有环境友好性,且其制品的制备和使用过程都具有环境友好性。

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