Valorisation of Alfa stem in synthesis of lignin –phenol -formaldehyde resin: Application as an adhesive corrosion-resistant coating

Author:

Toubal Sara1,Aribi Chouaib1,Saidi Mohammed1,Chentir Imene2,SAFI Brahim1ORCID

Affiliation:

1. University of Boumerdes: Universite M'Hamed Bougara Boumerdes

2. high school of food sciences

Abstract

Abstract The physical-mechanical and chemical performances of phenolic resin in the wood industry are already highlighted. However, the manufacturing cost and the negative impact on the environment and the human health are too serious. Studies on lignin-based adhesives have been launched to develop an alternative raw material that is also reusable, from biosources for the synthesis of phenolic resins. In this work, we are interested in overcoming these constraints by using lignin, which contains phenolic groups, as a partial phenol substituent (50%) in the synthesis of phenol-formaldehyde (PF) resins. Lignin extracted by the alkaline method from renewable natural resource (the raw Alfa stem). Characterization analyses are used to confirm the chemical structure, the physical properties of the resin obtained from the substitution of 50% of the bio source lignin, their antioxidant and antibacterial activities are also tested. This allows the study of their antioxidant activity of DPPH and ABTS radical scavenging type, an antibacterial activity against E. coli and P. aeruginosa gram negative was observed for a concentration of 20 mg/mL. The obtained results, in contrasted with the industrial resin, showed high advantages of this substitution. Also, the obtained lignin can be directly influence the properties of the formulated resin (LPF), structurally because it is similar with the reference resin (CPF), quantitatively the low intensity of the peaks of the formulated resin is revealed to the limitations of the methylol groups compared to the CPF resin. Results also show good adhesion of lignin-based paint the coating containing CPF exhibited a good barrier property.

Publisher

Research Square Platform LLC

Reference77 articles.

1. Tribot, A., et al.: “Wood-lignin: Supply, extraction processes and use as bio-based material,” Eur. Polym. J., vol. 112, pp. 228–240, (2019). 10.1016/J.EURPOLYMJ.2019.01.007

2. Methods to improve lignin’s reactivity as a phenol substitute and as replacement for other phenolic compounds: A brief review;Hu L;BioResources,2011

3. Kuhad, R., Singh, A.: Lignocellulose biotechnology: future prospects. IK International Publishing Hause Pvt Ltd, Kindle Edi (2007)

4. Organosolv ethanol lignin from hybrid poplar as a radical scavenger: relationship between lignin structure, extraction conditions, and antioxidant activity;Pan X;J. Agric. Food Chem.,2006

5. Preparation and performance of novel flavonoid phenols-based biomass-modified phenol formaldehyde resins;Qin Y;J. Inorg. Organomet. Polym Mater.,2023

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3