|本期目录/Table of Contents|

[1]赵 鑫,曹光辉,刘肖月,等.纤维素-碱木质素水凝胶的制备及其性能表征[J].武汉工程大学学报,2019,(04):366-370.[doi:10. 3969/j. issn. 1674?2869. 2019. 04. 012]
 ZHAO Xin,CAO Guanghui,LIU Xiaoyue,et al.Preparation and Characterization of Cellulose-Alkali Lignin Hydrogel[J].Journal of Wuhan Institute of Technology,2019,(04):366-370.[doi:10. 3969/j. issn. 1674?2869. 2019. 04. 012]
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纤维素-碱木质素水凝胶的制备及其性能表征(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2019年04期
页码:
366-370
栏目:
材料科学与工程
出版日期:
2019-09-27

文章信息/Info

Title:
Preparation and Characterization of Cellulose-Alkali Lignin Hydrogel
文章编号:
20190412
作者:
赵 鑫曹光辉刘肖月李琪微于露露孙 晨胡英成*
东北林业大学生物质材料科学与技术教育部重点实验室,黑龙江 哈尔滨 150040
Author(s):
ZHAO XinCAO GuanghuiLIU XiaoyueLI QiweiYU LuluSUN ChenHU Yingcheng*
Key Laboratory of Bio-Based Material Science and Technology of Ministry of Education,Northeast Forestry University, Harbin 150040, China
关键词:
纤维素木质素水凝胶溶胀度
Keywords:
cellulose lignin hydrogel swelling ratio
分类号:
TQ35
DOI:
10. 3969/j. issn. 1674?2869. 2019. 04. 012
文献标志码:
A
摘要:
在氢氧化钠和尿素水溶液的均匀混合环境中,加入交联剂环氧氯丙烷,采用加热法分别成功制备出纤维素(CL)水凝胶、纤维素-碱木质素(CAL)水凝胶及纤维素-离子液体木质素(CIL)水凝胶。分别采用溶胀度及再溶胀度测试、热重分析对3种水凝胶在3种溶液中的溶胀能力、热稳定性进行评价。实验结果表明,木质素的添加有利于CL水凝胶在蒸馏水溶液中的溶胀度,CIL木质素水凝胶在3种水凝胶中的再溶胀能力最高。与CL水凝胶相比,CAL水凝胶热分解范围较窄且分解速度缓慢,CAL在600 ℃高温炭化后固体残留量由32.6%提高到38.8%,CIL在600 ℃高温炭化后固体残留量由32.6%提高到35.7%,木质素的加入对CL水凝胶的热稳定性有一定的提高,CAL水凝胶具有良好的热力学稳定性。添加木质素制备CAL水凝胶,对于提高CL水凝胶热稳定性、实现生物质多组分高值化利用具有重要意义。
Abstract:
Cellulose (CL)hydrogel,cellulose-alkali lignin (CAL) hydrogel and cellulose-ionic liquid lignin (CIL) hydrogel were successfully prepared by heating with epichlorohydrin as the crosslinking agent in the aqueous solution of sodium hydroxide and urea. The swelling capacity and thermal stability of three hydrogels in three solutions were evaluated by swelling/re-swelling test and thermogravimetric analysis. The results show that the addition of lignin is beneficial to the improvement of swelling degree of cellulose hydrogels in distilled water,and the re-swelling ability of CIL is the highest among the three hydrogels. Compared with CL,CIL shows narrower range of thermal decomposition,and slower decomposition rate. The solid residues of CAL and CIL increase from 32.6% to 38.8% and from 32.6% to 35.7% respectively after the carbonization at 600 ℃. The addition of lignin improves the thermal stability of CL,and CIL possesses good thermodynamic stability. Adding lignin into the basic cellulose solution is of great significance for improving the thermal stability of cellulose hydrogel and realizing high value-added utilization of multi-component biomass.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2019-02-24基金项目:东北林业大学大学生院级创新训练项目(CL201715)作者简介:赵 鑫,博士研究生。E-mail: [email protected]*通讯作者:胡英成,教授,博士生研究导师。E-mail:[email protected]引文格式:赵鑫,曹光辉,刘肖月,等. 纤维素-碱木质素水凝胶的制备及其性能表征[J]. 武汉工程大学学报,2019,41(4):366-370.
更新日期/Last Update: 2019-08-05