甲酸木质素纳米颗粒的制备及疏水性能研究

高雅丽; 周晓贤; 倪书振; 陈晓倩; 傅英娟; 张凤山

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Study of Preparation and Hydrophobic Properties of Formic Acid Lignin Nanoparticles

Received:January 12, 2024 Revised:February 18, 2024

DOI：10.11981/j.issn.1000-6842.2024.02.125

Key Words:formic acid;nano particle;lignin;hydrophobicity;starch film

Fund Project:国家自然科学基金青年项目（22208175）；齐鲁工业大学培优项目（2023PY032）。

Author Name	Affiliation	Postcode
GAO Yali	Key Lab of Pulp and Paper and Paper Science， Qilu University of Technology （Shandong Academy of Sciences）， Ji’nan， Shandong Province， 250353 State Key Lab of Biobased Material and Green Papermaking， Qilu University of Technology （Shandong Academy of Sciences）， Ji’nan， Shandong Province， 250353	250353
ZHOU Xiaoxian	Key Lab of Pulp and Paper and Paper Science， Qilu University of Technology （Shandong Academy of Sciences）， Ji’nan， Shandong Province， 250353 State Key Lab of Biobased Material and Green Papermaking， Qilu University of Technology （Shandong Academy of Sciences）， Ji’nan， Shandong Province， 250353	250353
NI Shuzhen^*	Key Lab of Pulp and Paper and Paper Science， Qilu University of Technology （Shandong Academy of Sciences）， Ji’nan， Shandong Province， 250353 State Key Lab of Biobased Material and Green Papermaking， Qilu University of Technology （Shandong Academy of Sciences）， Ji’nan， Shandong Province， 250353	250353
CHEN Xiaoqian	Key Lab of Pulp and Paper and Paper Science， Qilu University of Technology （Shandong Academy of Sciences）， Ji’nan， Shandong Province， 250353 State Key Lab of Biobased Material and Green Papermaking， Qilu University of Technology （Shandong Academy of Sciences）， Ji’nan， Shandong Province， 250353	250353
FU Yingjuan	Key Lab of Pulp and Paper and Paper Science， Qilu University of Technology （Shandong Academy of Sciences）， Ji’nan， Shandong Province， 250353 State Key Lab of Biobased Material and Green Papermaking， Qilu University of Technology （Shandong Academy of Sciences）， Ji’nan， Shandong Province， 250353	250353
ZHANG Fengshan^*	Shandong Huatai Paper Co.， Ltd.， & Shandong Yellow Triangle Biotechnology Industry Research Institute Co.， Ltd.， Dongying， Shandong Province， 257335	257335

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Abstract:

In this study， formic acid lignin and its nanoparticles were isolated and prepared from corn stover， poplar and pine wood with different liquid ratios （1∶10， 1∶9， 1∶8， and 1∶7） using formic acid of pulping process. The difference of phenolic hydroxyl contents in different formic acid lignin was explored. The results showed that the formic acid lignin obtained from the three raw materials had the basic characteristic structure of lignin， and the phenolic hydroxyl contents of lignin at the liquid ratio of 1∶9 was 2.69， 2.82， and 3.09 mmol/g， respectively. The results of water contact angle experiments showed that the lignin compression tablets of three raw materials had strong hydrophilicity. Formic acid lignin nanoparticles were used for the preparation of formic acid lignin nanoparticles/starch composite films， and the contact angle of composite films was significantly increased， and the hydrophobic properties were influenced by the type of raw materials and liquid ratios. The contact angle of composite films after four months aging was further enhanced， and corn stover， poplar and pine formic acid lignin/starch composite films had the highest water contact angles of 127.2°， 125.1° and 123.5°， respectively. The study results played a positive role in promoting hydrophobic performance of lignin， and developing applications of hydrophobic films.

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