废纸脱墨浆镁碱过氧化氢漂白纸浆表面性能的研究  

The Surface Properties of Mg(OH)_2-based Hydrogen Peroxide Bleached DIP

作　　者：云娜[1] 何北海[2,3] 

机构地区：[1]广东轻工职业技术学院轻化工技术学院,广东广州510300 [2]华南理工大学制浆造纸工程国家重点实验室,广东广州510640 [3]华南理工大学造纸与污染控制国家工程研究中心,广东广州510640

出　　处：《造纸科学与技术》2017年第2期1-7,54,共8页Paper Science & Technology

基　　金：广东省高等学校优秀青年教师培养计划资助项目(YQ2014179)

摘　　要：本论文采用丙酮抽提处理和XPS、SEM-EDS等表面分析技术相结合的方法,探索脱墨废纸氢氧化镁碱过氧化氢漂白浆的表面性能。研究结果表明,脱墨废纸浆样品表面除了主要的元素C和O外,还存在Ca、Si、Al等微量元素;P_(Mg(OH)_20)漂白浆表面木素和抽出物总覆盖物含量比P_(NaOH)漂白浆少;丙酮抽提有助于提高纸浆的白度和抗张指数,但对纤维表面残余油墨粒子的去除作用不大。The acetone extraction and XPS, SEM -EDS surface analysis techniques were combined to explore the surface properties of Mg（OH）2 -based peroxide bleached deinked pulp. The low- resolution of XPS and SEM - EDS showed that some trace elements such as calcium, silicon, aluminum were present on the sample surface, in addition to the main elements of carbon and oxygen. PMgOH）2bleached pulp had less surface lignin and extractives than PNoHbleached pulp. The extraction improved pulp brightness and tensile index, but had little effect on residu- al ink removal.

关 键 词：废纸脱墨浆 表面性能 过氧化氢漂白 MG(OH)2 

分 类 号：TS749[轻工技术与工程—制浆造纸工程]