摘要
采用四羟甲基磷酸膦(THPS)漂白马尾松热磨机械浆,探讨THPS用量、初始pH值、漂白时间和漂白温度对漂后纸浆白度的影响。研究结果表明,THPS漂白马尾松热磨机械浆的适宜条件是:浆浓10%,THPS用量2.0%,初始pH5.0,漂白时间2h,温度90℃时,漂后纸浆白度达到63.07%ISO,白度增值为7.07%ISO。通过比较连二亚硫酸盐(Y)漂白和THPS漂白的效果,当THPS用量为0.1%,Y用量为1.0%时,漂后纸浆的白度达到61.12%SO,比未漂浆的白度提高了5.12%ISO。
The effects of bleaching masson pine TMP pulp with the new bleaching agent-THPS,the dosage of THPS,initial pH,reaction time and temperature were investigated in this paper.e results showed that the optimal conditions of bleaching were,pulp consistency of 10%,THPS of 2.0%,the initial pH value of 5.0,time of 120min,temperature of 90 ℃,pulp brightness could reach 63.07%ISO,the brightness increased 7.07% ISO.rough the comparison of the THPS bleaching and Y Bleaching,0.1% THPS and 1.0% Y at optimal conditions of bleaching,pulp brightness could reach 61.12% ISO,the brightness of pulp increased 5.12% ISO.
出处
《纸和造纸》
北大核心
2010年第12期35-36,共2页
Paper and Paper Making
关键词
THPS
马尾松
漂白
tetrakis(hydroxymethyl)phosphonium sulfate
masson pine
bleaching