摘要
用化学荧光法研究四种填料对H2 O2 漂白过程中羟基自由基 (·OH)的行为及对H2 O2 漂白的效果的影响。结果表明 ,用邻苯二甲酰肼 (即PtH)作为羟基自由基的稳定剂是可行的。反应时间为 40min时羟基自由基的相对浓度为最高 ,各种填料对H2 O2 的稳定性及漂白效果等的影响不同。
By means of chemiluminescence, the production of hydroxyl radicals(·OH) and its effect on bleaching result in the hydrogen peroxide bleaching with the addition of fillers are studied. The results reveal that it's feasible to use phthalhydrazide(PtH) as the stabilizing reagent of hydroxyl radicals. The relative concentration of hydroxyl radicals attains to the highest when the reaction time is 40min. The effects of the four kinds of fillers on bleaching results and stability of hydrogen peroxide are different.
出处
《造纸科学与技术》
北大核心
2004年第6期24-27,43,共5页
Paper Science & Technology
基金
国家自然科学基金 (2 98760 12 )
广东省自然科学基金 (0 2 0 93 5
980 5 96)资助课题
