作　　者： ; ; ; ; ;

机构地区： 山东轻工业学院

出　　处： 《中国造纸学报》 2006年第2期22-25,共4页

摘　　要： 在实验室利用药液预浸和高温汽蒸预处理技术对三倍体毛白杨木片进行预处理,随后采用NaOH-AQ法制浆,得到低硬度化学浆。对该浆进行(Q/OP)QP全无氯(TCF)漂白,确定了(Q/OP)QP漂序较适宜的工艺条件为,H2O2强化氧脱木素段:浆浓10%,用碱量2.5%,H2O2用量3%,MgSO4用量0.5%,氧压0.6 MPa,温度100℃,时间60 min;Q段:浆浓8%,DTPA用量0.3%,初始pH值4,温度70℃,时间60 min;P段:浆浓10%,H2O2用量2%,MgSO4用量0.5%,Na2SiO3用量0.7%,温度90℃,用碱量1.5%,时间120 min。在适宜的条件下,三倍体毛白杨低硬度化学浆的白度可达82.0%ISO,黏度716 mL/g,漂后浆得率91.78%。 The low Kappa number seda-AQ pulp from triploid of populus tornentosa with a brightness of 37%ISO, a Kappa number of 13.5 and a viscosity of 851mL/g was obtained in the laboratory by high temperature steaming and the chemical pretreatment. The pulp was bleached with the total chlorine free process （Q/Op）QP sequence. The proper conditions in （Q/Op）QP sequence were as follows： Q/Op stage：pulp consistency 10%, H2O2 dosage 3%, NaOH dosage 2.5%,MGSO4 desage 0.5%, oxygen pressure 0.6 MPa, at 90℃ and 60 minutes; Q stage： pulp consistency 8%, DTPA desage 0.3%, initial pH value 4, at 70℃ and 60 minutes;P stage： pulp consistency 10%, H2O2 dosage 2%, MgSO4 dosage 0.5%, Na2SiO3 dosage 0.7%, NaOH dosage 1.5%, at 90℃ and 120 minutes. Under the conditions, the bleached （Q/Op）QP pulp with the brightness of 82.0%ISO, the viscosity of 716 mL/g was obtained and the bleached pulp yield was 91.78%.

关 键 词： 低硬度 浆 三倍体毛白杨 强化氧脱木素 全无氯漂白

领　　域： [轻工技术与工程]