CAJ | 학술논문

以杨木碱性过氧化氢机械浆( APMP)、化学热磨机械浆( CTMP)、硫酸盐浆( KP)和麦草CTMP 4种浆为原料,对纸浆在应用生物酶漂白前利用离子液体进行温和预处理,控制离子液体BmimCl用量为1.0%(以绝干纸浆质量计,下同)、EmimDMP用量为1.2%,研究发现离子液体预处理可明显改善纸浆的酶漂效果,且EmimDMP的效果更优。表现为应用离子液体预处理后成纸的光学性能及物理强度明显改善,EmimDMP预处理后杨木KP浆白度可提高4.27%(ISO),不透明度增加了2.46%,麦草CTMP成纸的抗张指数、耐破指数、环压指数、撕裂指数及耐折度分别增加12.21%、29.80%、22.45%、44.82%和52．50%。纤维质量分析仪( FQA)、X射线衍射( XRD)和扫描电镜( SEM)分析结果显示,离子液体处理后4种纸浆纤维质量提高,平均长度增加,细小纤维含量降低,纤维结晶度提高,其中 EmimDMP 处理后杨木 KP 浆结晶度提高了11．21%,纸浆表面发生明显分丝帚化,增加了药液的渗透能力。
이양목감성과양화경궤계장( APMP)、화학열마궤계장( CTMP)、류산염장( KP)화맥초CTMP 4충장위원료,대지장재응용생물매표백전이용리자액체진행온화예처리,공제리자액체BmimCl용량위1.0%(이절간지장질량계,하동)、EmimDMP용량위1.2%,연구발현리자액체예처리가명현개선지장적매표효과,차EmimDMP적효과경우。표현위응용리자액체예처리후성지적광학성능급물리강도명현개선,EmimDMP예처리후양목KP장백도가제고4.27%(ISO),불투명도증가료2.46%,맥초CTMP성지적항장지수、내파지수、배압지수、시렬지수급내절도분별증가12.21%、29.80%、22.45%、44.82%화52．50%。섬유질량분석의( FQA)、X사선연사( XRD)화소묘전경( SEM)분석결과현시,리자액체처리후4충지장섬유질량제고,평균장도증가,세소섬유함량강저,섬유결정도제고,기중 EmimDMP 처리후양목 KP 장결정도제고료11．21%,지장표면발생명현분사추화,증가료약액적삼투능력。
Using aspen alkaline peroxide mechanical pulp (APMP), chemithermomechanical pulp (CTMP), kraft pulp (KP) and wheat straw CTMP as material, before enzymatic bleaching, the pulp was moderately pretreated by ionic liquids of BmimCl 1. 0%(relative to the amount of dry pulp, the below was the same ) and EmimDMP 1. 2%, respectively. The results showed that ionic liquids could optimize the pulp enzymatic bleaching properties, and EmimDMP gave better results. The whiteness of poplar kraft pulp(KP) increased by 4. 27 %(ISO), opaqueness increased by 2. 46%, and the tensile index, burst index, ring crush index, tear index as well as the folding number of wheat straw chemithermomechanical pulp( CTMP) forming paper increased by 12. 21 %, 29. 80 %, 22. 45 %, 44. 82 % and 52. 50 %, respectively, after the pretreatment of EmimDMP. The fiber quality analysis( FQA ) , X-ray diffraction ( XRD ) , and scanning electron microscope ( SEM ) were employed to characterize its properties. After pretreated with ionic liquid, there was a improvement of fiber quality with the average length increasing, the fines content reducing, and the fiber crystalline increasing. The crystalline of EmimDMP pretreated poplar KP increased by 11. 21 %. The surface of pulp occured obvious fibrillation, and this phenomenon could increase the penetration of liquids.