摘要
本研究以马来酸-丙烯酸共聚物(MA-AA)为主体稳定剂,与螯合型助剂复合,制备了新型过氧化氢(H_(2)O_(2))稳定剂,通过测定新型H_(2)O_(2)稳定剂对金属离子的螯合值、H_(2)O_(2)分解率及进行化机浆H_(2)O_(2)漂白实验,研究新型H_(2)O_(2)稳定剂对H_(2)O_(2)漂白的稳定性能,并与进口稳定剂进行比较。结果表明,新型H_(2)O_(2)稳定剂对Fe^(3+)、Mg^(2+)、Mn^(2+)、Ca^(2+)的螯合能力分别达262.3、105.2、141.4、160.3 mg/g;在模拟国内4个地区水质中不同金属离子含量条件下,新型H_(2)O_(2)稳定剂能够有效抑制H_(2)O_(2)分解,具有与进口产品相当的稳定能力。在纸浆漂白工艺条件下,新型H_(2)O_(2)稳定剂在低用量时,对桉木化机浆、杨木化机浆、蔗渣化机浆和芦苇化机浆的漂白均有良好的稳定效果。
A new hydrogen peroxide(H_(2)O_(2))stabilizer was prepared by using maleic acid-acrylic acid copolymer(MA-AA)as the main stabi⁃lizer and compounded with chelating co-stabilizer.The stability of the composite stabilizer for H_(2)O_(2) bleaching was studied by measuring the chelating ability of metal ions,the decomposition rate of H_(2)O_(2) and the H_(2)O_(2) bleaching experiment of chemi-mechanical pulp,and the perfor⁃mance of the composite stabilizer was compared with that of the imported stabilizer.The results showed that the chelating capacity of Fe^(3+),Mg^(2+),Mn^(2+),Ca^(2+)of the new H_(2)O_(2) stabilizer reached 262.3,105.2,141.4,160.3 mg/g,respectively.Under the condition of simulating the different metal ion contents in the water of four regions in China,the new H_(2)O_(2) stabilizer could effectively inhibit the decomposition of H_(2)O_(2),and had the same stability ability as the imported products.Under the condition of industrial pulp bleaching process,the compound stabiliz⁃er had good bleaching effect on eucalyptus,poplar,bagasse,and reed chemi-mechanical pulp at low dosage.
作者
周宛欣
叶文馨
杨涛
李森森
唐璇
成西涛
ZHOU Wanxin;YE Wenxin;YANG Tao;LI Sensen;TANG Xuan;CHENG Xitao(College of Chemistry and Chemical Engineering,Xi’an Shiyou University,Xi’an,Shaanxi Province,710065;Shaanxi Petrochemical Research and Design Institute,Xi’an,Shaanxi Province,710054)
出处
《中国造纸》
CAS
北大核心
2024年第2期119-125,共7页
China Pulp & Paper
基金
陕西省重点研发计划项目(2022GY-206)
西安石油大学研究生创新与实践能力培养项目(YCS22213101)。
关键词
聚合物
稳定剂
过氧化氢
漂白
polymers
stabilizer
hydrogen peroxide
bleaching
