CAJ | 학술논문

探讨了脂肪酶和果胶酶预处理对粉丹竹SCMP过氧化氢漂白浆的白度、白度稳定性、打浆度及强度性质的影响.对纸浆进行了苯-醇抽出物含量的测定和X射线光电子能谱(XPS)的分析.实验结果表明,两种酶预处理都可以使漂后纸浆的白度提高3～4个百分点,PC值降低33%～34%,打浆度分别提高4.0°SR、2.5°SR,裂断长、耐破指数和撕裂指数等也提高了4%～9%.粉丹竹SCMP苯-醇抽出物含量达1.92%,经过脂肪酶和果胶酶预处理后纸浆苯-醇抽出物含量分别降低了0.40个百分点和0.56个百分点.由XPS分析可知,在脂肪酶或果胶酶预处理过程中,纸浆抽出物的去除主要发生在纤维表面,使纤维表面暴露出更多的碳水化合物和木素,有利于后续过氧化氧漂白.
탐토료지방매화과효매예처리대분단죽SCMP과양화경표백장적백도、백도은정성、타장도급강도성질적영향.대지장진행료분-순추출물함량적측정화X사선광전자능보(XPS)적분석.실험결과표명,량충매예처리도가이사표후지장적백도제고3～4개백분점,PC치강저33%～34%,타장도분별제고4.0°SR、2.5°SR,렬단장、내파지수화시렬지수등야제고료4%～9%.분단죽SCMP분-순추출물함량체1.92%,경과지방매화과효매예처리후지장분-순추출물함량분별강저료0.40개백분점화0.56개백분점.유XPS분석가지,재지방매혹과효매예처리과정중,지장추출물적거제주요발생재섬유표면,사섬유표면폭로출경다적탄수화합물화목소,유리우후속과양화양표백.
This paper mainly discussed the effect of lipase or pectinase pretreatment on the brightness and brightness stability as well as beating degree and strength properties of H_2O_2 bleached Bambusa Chung Ⅱ sulphonated chemimechanical pulp(SCMP).The content of benzene/ethanol extractives Was also evaluated.In addition,the properties of the fiber surface were analyzed using X-ray photoelectron spectroscopy.From the result,after lipase and pectinase pretreatment,the final brightness increased by 3%～4% ISO,PC number decreased by33%～34%,beating degree increased by 2.5～4.0°SR and strength properties also increased by 4%～9%.The content of benzene/ethanol extractives of Bambusa Chung Ⅱ SCMP after lipase and pectinase pretreatment decreased by 0.40% and 0.56% respectively.From XPS analysis,the removal of extractive took place on the fiber surface during enzyme pretreatment,which was of benefit to hydrogen peroxide bleaching.