首页|竹溶解浆的碱预处理及其溶解性能研究

竹溶解浆的碱预处理及其溶解性能研究

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  • 国家科技期刊平台
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  • NSTL
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选用聚合度为1228的商品竹溶解浆为原料,通过偏光显微镜、纤维素溶液紫外-可见光(UV-Vis)光谱、动态光散射(DLS)和透射电镜(TEM)分析及溶解率测定研究了经不同浓度NaOH(质量分数1％～12％)预处理后的竹溶解浆在7％ NaOH/12％尿素水溶液溶剂体系中的低温溶解行为.结果表明,适宜浓度碱液的预处理提高了纤维素的反应活性及7％ NaOH/12％尿素水溶液溶剂对竹溶解浆纤维素的可及度,其中,9％ NaOH预处理后的竹溶解浆表现出最佳的溶解效果.
The Influence of Alkali Pretreatment on the Dissolution of Bamboo Dissolving Pulp in NaOH/Urea System
Commercial bamboo dissolving pulp with degree polymerization (DP) of 1228 was used as raw material,dissolving behavior in 7％ NaOH/12％ urea solvent system at lower temperature of bamboo dissolving pulp pretreated by different concentration(1％ ～ 12％) of NaOH solution was studied by polar microscopy analysis,UV-Vis spectrum analysis,dynamic light scattering (DLS) and TEM analysis of cellulose solution,and determination of dissolving proportion.The results showed that bamboo dissolved pulp pretreated by 9％ NaOH had the best dissolving behavior in 7％ NaOH/12％ urea aqueous solution,indicating proper concentration of alkali solution pretreatment could improve the reaction activity of cellulose and accessibility of 7％ NaOH/12％ urea aqueous solution to cellulose of bamboo dissolving pulp.

bamboo dissolving pulpdissolutioncellulosepretreatmentNaOH solution

石岩、张括、朱雅桐、胡振兴、孙楠、白苗丽、彭琳

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天津商业大学包装工程系,天津,300134

竹溶解浆 溶解 纤维素 预处理 NaOH溶液

国家自然科学基金天津市应用基础与前沿技术研究计划自然科学基金一般项目

5140315613JCYBJC38800

2017

中国造纸学报
中国造纸学会

中国造纸学报

CSTPCDCSCD北大核心
影响因子：0.794
ISSN：1000-6842
年,卷(期)：2017.(2)
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