碱脲体系对竹纤维漂白性能的影响研究  

Effect of Alkali-Urea Aqueous Solution on the Bleaching Property of Bamboo Fibers

作　　者：王洪超 胡志军[2] 林倩倩 刘宛 周游 WANG Hong-chao;HU Zhi-jun;LIN Qian-qian;LIU Wan;ZHOU You(Zhejiang Jingxing Paper Co., Ltd., Pinghu, Zhejiang, 314214 China;Key Laboratory of Recycling and Eco-treatment of Waste Biomass of Zhejiang Province Zhejiang University of Science and Technology, Hangzhou, 310023 China)

机构地区：[1]浙江景兴纸业股份有限公司,浙江平湖314214 [2]浙江科技学院浙江省废弃生物质循环利用与生态处理技术重点实验室,浙江杭州310023

出　　处：《纸和造纸》2018年第2期17-20,共4页Paper and Paper Making

基　　金：浙江省重大科技专项重点工业项目(2013C01082);浙江省废弃生物质循环利用与生态处理技术重点实验室开放基金(2016REWB30)

摘　　要：采用氢氧化钠-尿素水溶液预处理高卡伯值慈竹硫酸盐浆,以期改善其漂白性能,并利用纤维质量分析仪、红外光谱仪和X-射线衍射仪等表征处理前后纤维微观性能的变化情况。研究结果表明:碱脲体系在用碱量5%、冷冻时间30 min和纤维浓度15%的处理条件下,竹浆的漂白效果最佳;处理后的纸浆漂后白度可提高23%,得率损失6.7%,纤维素的官能团结构和结晶区结构没有明显变化。Unbleached KP with high kappa number of sinocalamus affinis was treated in NaOH-urea aqueous solution under the conditions of -10%2 to modify the bleaching property.The micro-properties of the untreated and treated fiber were analyzed by FQA, FT- IR and XRD. The optimal conditions were alkali dosage of 5%, freezing time of 30 min, and fiber concentration of 15%. Compared to those of untreated KP, the whiteness of treated KP with the bleaching process of ClO2 and H2O2 could be increased by 23% when losing 6.7% of yield. According to the analysis of micro-properties, there was no obvious variation on the analysis of FQA, FT-IR and XRD.

关 键 词：碱脲体系 慈竹 高卡伯值 硫酸盐浆 漂白性能 

分 类 号：TS745[轻工技术与工程—制浆造纸工程]