摘要
研究木聚糖酶预处理对沙柳硫酸盐浆ECF漂白性能的影响。结果表明,木聚糖酶预处理的最佳工艺条件为:温度50℃,pH7,浆浓8%,处理时间60min,酶用量10IU·g-1浆。木聚糖酶预处理可以提高沙柳硫酸盐浆的ECF漂白性能,使DED漂白浆的白度提高4.02%ISO。用木聚糖酶进行ECF漂白预处理不仅能够提高纸浆白度,有效降低漂白时的化学品用量,而且对纸浆强度影响并不明显。
The effect of xylanase pretreatment ECF bleaching of salix psammophila sulfate pulp was investigated. The results indicated that the suitable conditions for xylanase pretreatment were： temperature 50℃, pH value 7, pulp consistency 8%, time 60 min, enzyme dosage 10IU·g^-1.The xylanase pretreatment can enhance the bleaching properties of salix psammophila sulfate pulp. The brightness of xylanase pretreated pulp after DED bleaching was increased by 4.02%ISO. ECF bleaching with the xylanase pretreatment not only can enhance the brightness of pulp and reduce the amount of chlorine used effectively, but also not significant effect on pulp strength.
出处
《纸和造纸》
北大核心
2011年第7期55-58,共4页
Paper and Paper Making
基金
国家自然科学基金(30972326
31070525)
山东自然科学基金(ZR2010CM065)
973计划前期研究专项(2011CB211705)
关键词
沙柳硫酸盐浆
木聚糖酶
ECF漂白
salix psammophila sulfate pulp
xylanase
ECF bleaching
