中国工程科学
中國工程科學
중국공정과학
ENGINEERING SCIENCE
2014年
4期
64-68
,共5页
桉木纤维%碱处理%傅立叶红外光谱%扫描电子显微镜(SEM)
桉木纖維%堿處理%傅立葉紅外光譜%掃描電子顯微鏡(SEM)
안목섬유%감처리%부립협홍외광보%소묘전자현미경(SEM)
eucalyptus wood fiber%alkali treatment%Fourier transform infrared spectroscopy (FTIR)%SEM
采用桉木纤维为原料，探讨碱处理对板材挤压结合机理的影响。结果表明：碱处理对木质素、半纤维素都有不同程度的降解作用；在热压制板过程中，经过降解作用的木材成分经适当的热压工艺能够发生聚合反应从而粘合成板；强碱（NaOH）对桉木纤维的影响大于弱碱溶液（Na2CO3），且处理时间为10 h较适宜；碱处理过程产生的活性羟基，热压后可以缔合形成氢键，增加了纤维之间的结合力，有利于桉木纤维自身粘合成板。
採用桉木纖維為原料，探討堿處理對闆材擠壓結閤機理的影響。結果錶明：堿處理對木質素、半纖維素都有不同程度的降解作用；在熱壓製闆過程中，經過降解作用的木材成分經適噹的熱壓工藝能夠髮生聚閤反應從而粘閤成闆；彊堿（NaOH）對桉木纖維的影響大于弱堿溶液（Na2CO3），且處理時間為10 h較適宜；堿處理過程產生的活性羥基，熱壓後可以締閤形成氫鍵，增加瞭纖維之間的結閤力，有利于桉木纖維自身粘閤成闆。
채용안목섬유위원료，탐토감처리대판재제압결합궤리적영향。결과표명：감처리대목질소、반섬유소도유불동정도적강해작용；재열압제판과정중，경과강해작용적목재성분경괄당적열압공예능구발생취합반응종이점합성판；강감（NaOH）대안목섬유적영향대우약감용액（Na2CO3），차처리시간위10 h교괄의；감처리과정산생적활성간기，열압후가이체합형성경건，증가료섬유지간적결합력，유리우안목섬유자신점합성판。
Eucalyptus wood fiber was prepared to investigate the effects of alkali treatment on mechanism of extrusion bonding of the board. The results showed that hemi-cellulose and lignin were partly degraded during eucalyptus wood fiber were treated with alkali,these degraded sub-stances could be copolymerized during hot-pressing,the influence of alkali (NaOH) on eucalyp-tus wood fiber was greater than the weak base (Na2CO3) and the processing time for 10 h was more appropriate,and the increased hydroxyl after defibrinating partly formed hydrogen-bond-ing during hot-pressing,resulting in strengthened fiber self-bonding.
