APMP纸浆纤维的阳离子改性及对纸浆强度性能的影响  

Cationization of APMP fibers and its influence on pulp strength properties

作　　者：王孝辉[1] 孔凡功[1] 王守娟[1] 杨桂花[1] 刘玉[1] 

机构地区：[1]齐鲁工业大学制浆造纸科学与技术教育部重点实验室,济南250353

出　　处：《中华纸业》2016年第14期18-22,共5页China Pulp & Paper Industry

基　　金：国家自然科学基金:31170547;31500489;31570566;山东省科学自然基金:ZR2013CQ020;山东省科技发展计划:2012GSF11710资助项目

摘　　要：采用阳离子试剂3-氯-2-羟基丙基三甲基氯化铵(CHPTMAC)对杨木碱性过氧化氢机械浆(APMP)进行改性,以改善纸浆强度性能。以改性后纸浆强度性能为指标,研究了改性剂用量、N a O H用量、反应温度和浆浓对纤维改性效果的影响。结果表明:改性后纸浆的抗张强度、撕裂度等性能有了明显的改善,最佳改性条件为:改性剂用量0.8%(对绝干浆),Na OH用量1%(对绝干浆),温度50℃,浆浓8%;在此条件下,纸张的抗张指数提高了22.8%,撕裂指数提高了16.3%。同时,对改性前后的纸浆纤维进行红外光谱和元素分析,探讨了阳离子改性纸浆纤维提高纸张强度性能的机理。In this paper, 3-chloro-2-hydroxypropyl trimethyl ammonium chloride （CHPTMAC） was used to modify the alkaline peroxide mechanical pulping （APMP） to enhance pulp strength properties. The effects of technical parameters, including dosage of modification agent, dosage of NaOH, reaction temperature and pulp consistency, on pulp strength properties were investigated and discussed. The results showed that the optimal conditions were 0.8% of cationic agent （oven dried pulp）, 1% （oven dried pulp） of NaOH, 50℃ of temperature and 8% of pulp concentration. After modification, the tensile index and tear index were increased by 22.8% and 16.3% respectively, compared with unmodified pulp. The mechanism to improve the strength properties of paper with cationic modification was elucidated with IR, elemental analysis and internal bond intensity analysis.

关 键 词：阳离子改性剂 接枝改性 APMP 强度性能 

分 类 号：TS727.1[轻工技术与工程—制浆造纸工程] TS743.2