中华纸业
中華紙業
중화지업
CHINA PULP & PAPER INDUSTRY
2015年
18期
64-69
,共6页
微细纤维素(MFC)%氧化微细纤维素(TMFC)%针叶木浆%甘蔗渣浆%紧度%干湿强度%撕裂强度
微細纖維素(MFC)%氧化微細纖維素(TMFC)%針葉木漿%甘蔗渣漿%緊度%榦濕彊度%撕裂彊度
미세섬유소(MFC)%양화미세섬유소(TMFC)%침협목장%감자사장%긴도%간습강도%시렬강도
micro-ifbrillated cellulose%TEMPO-oxidized MFC%unbeaten softwood pulp%bagasse pulp%density%wet and dry tensile strength%tear resistance
通过木聚糖酶预处理以及轻微磨浆处理，漂白枣椰树叶轴浆用来分离制备微细纤维素（MFC）和四甲基哌啶氧化微细纤维素（TMFC）。分离后的MFC和TMFC用来改善未打浆针叶木浆和甘蔗渣浆抄造的纸张的强度性能，添加比例从2.5%增加到20%，并且对MFC的留着也进行了估测。结果显示，MFC和TMFC的添加能够提高未打浆针叶木浆和甘蔗渣浆抄造的纸张的紧度、干湿抗张强度、撕裂强度以及降低纸张的透气度。但是，在改善针叶木浆纸张强度性能方面，通常的打浆操作比添加微细纤维素更加有效。另一方面，在改善甘蔗渣浆纸张强度性能方面，添加MFC和TMFC比通常的打浆操作更加有效。并且，在针叶木浆中或者甘蔗渣浆中添加TMFC对抗张强度（干强度和湿强度）的改善比添加MFC效果更好。
通過木聚糖酶預處理以及輕微磨漿處理，漂白棘椰樹葉軸漿用來分離製備微細纖維素（MFC）和四甲基哌啶氧化微細纖維素（TMFC）。分離後的MFC和TMFC用來改善未打漿針葉木漿和甘蔗渣漿抄造的紙張的彊度性能，添加比例從2.5%增加到20%，併且對MFC的留著也進行瞭估測。結果顯示，MFC和TMFC的添加能夠提高未打漿針葉木漿和甘蔗渣漿抄造的紙張的緊度、榦濕抗張彊度、撕裂彊度以及降低紙張的透氣度。但是，在改善針葉木漿紙張彊度性能方麵，通常的打漿操作比添加微細纖維素更加有效。另一方麵，在改善甘蔗渣漿紙張彊度性能方麵，添加MFC和TMFC比通常的打漿操作更加有效。併且，在針葉木漿中或者甘蔗渣漿中添加TMFC對抗張彊度（榦彊度和濕彊度）的改善比添加MFC效果更好。
통과목취당매예처리이급경미마장처리，표백조야수협축장용래분리제비미세섬유소（MFC）화사갑기고정양화미세섬유소（TMFC）。분리후적MFC화TMFC용래개선미타장침협목장화감자사장초조적지장적강도성능，첨가비례종2.5%증가도20%，병차대MFC적류착야진행료고측。결과현시，MFC화TMFC적첨가능구제고미타장침협목장화감자사장초조적지장적긴도、간습항장강도、시렬강도이급강저지장적투기도。단시，재개선침협목장지장강도성능방면，통상적타장조작비첨가미세섬유소경가유효。령일방면，재개선감자사장지장강도성능방면，첨가MFC화TMFC비통상적타장조작경가유효。병차，재침협목장중혹자감자사장중첨가TMFC대항장강도（간강도화습강도）적개선비첨가MFC효과경호。
Bleached palm rachis pulp pretreated with xylanase enzymes was used for isolation of micro-fibrillated cellulose (MFC) and TEMPO-oxidized MFC (TMFC) by ultraifne grinding. The isolated MFC and TMFC were used at ratios from 2.5% to 20% for improving strength properties of paper sheets prepared from unbeaten softwood and bagasse pulps. The retention of micro-ifbrillated cellulose in paper sheets was also estimated. The results showed that MFC or TMFC brought about an increase in density, wet and dry tensile strength, tear resistance, and a decrease in air permeability of paper sheets prepared from unbeaten softwood or bagasse. However, usual beating of softwood ifbers was much more effective in improving strength properties of softwood paper sheets than addition of micro-ifbrillated cellulose. On the other hand, the improvement in strength properties of bagasse paper sheets as a result of MFC or TMFC addition was generally higher than that resulted from beating of bagasse pulp. Use of TMFC with unbeaten softwood or bagasse ifbers resulted generally in better improvement in tensile strength (wet and dry) than in case of using MFC.
