Structure Characteristics of Acidic Pretreated Fiber and Self-bind Bio-boards for Public Health
Structure Characteristics of Acidic Pretreated Fiber and Self-bind Bio-boards for Public Health
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通讯作者：
Zhi Lin;Sheng-Bo Ge;Dong-Li Li-Dong-Li-Li-2267463234;Wanxi Peng
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作者：
Zhi Lin;Sheng-Bo Ge;Dong-Li Li-Dong-Li-Li-2267463234;Wanxi Peng
由室内甲醛污染引起的人工流产对公众健康的威胁越来越严重。为了从根本上消除室内甲醛污染，对木纤维进行了酸处理和自粘合处理，并用红外光谱和扫描电子显微镜对其进行了分析。结果表明，随着处理时间的延长，粘结强度先增大后减小，10h达到最大值0.52 Mpa(HOOC-COOH)，15h达到最大值0.82 Mpa(1%CH3COOH)。木质素在酸处理过程中变化不大，纤维素中的糖苷键降低，其他基团在酸处理过程中均增加。在自结合过程中，活性基团、木质素和纤维素都参与了链式反应。木纤维经1%CH3 COOH预处理比1%CH3 COOH预处理法更有利于自粘合生物板的形成。
Abortion, which has been induced by indoor formaldehyde pollution, is more and more severely threating public health. To fundamentally eliminate indoor formaldehyde pollution, wood fiber was done by acid pretreatment and self-bind precess, and analyzed by FT-IR and SEM. The results shown that the bond strength firstly increased and then decreased with the increase of pretreatment time, reached the maximum value 0.52 MPa (HOOC-COOH) for 10h and 0.82 MPa (1%CH 3 COOH) for 15h. lignin did not change during the acid pretreatment, ²-glycosidic bond of cellulose decreased, other groups all increased during acid pretreat. And the active groups, lignin and cellulose all took part in the chain reaction during self-bind precess. Wood fiber was better done by 1% CH 3 COOH pretreatment than by 1% CH 3 COOH pretreatment in favor of self-bind bio-boards.