Study on extraction of lignin and synthesis of lignin-based epoxy resins using ionic liquid

doi:10.1007/s13399-021-01295-2

	Study on extraction of lignin and synthesis of lignin-based epoxy resins using ionic liquid
	Miao, Changlin 1,2,3; Xinshu, Zhuang 1,2,3; Yang, Lingmei 1,2,3; Li, Huiwen 1,2,3; Lv, Pengmei 1,2,3; Luo, Wen 1,2,3
刊名	BIOMASS CONVERSION AND BIOREFINERY
	2021-02-04
页码	12
关键词	Epoxy resin Lignin Ionic liquid Phenolation
ISSN号	2190-6815
DOI	10.1007/s13399-021-01295-2
通讯作者	Li, Huiwen(huiwl@ms.giec.ac.cn)
英文摘要	Lignin molecules contain alcohol hydroxyl and phenolic hydroxyl, so lignin can be used instead of toxic bisphenol A (BPA) to synthesize epoxy resin, which can not only reduce the amount of formaldehyde emission but also achieve the purpose of waste utilization and environmental protection. In this study, the lignin of Eucalyptus urophylla was extracted with ionic liquid as the extraction agent, and subsequently phenolated by methylphenol as phenolic agent with concentrated sulfuric acid as catalyst to prepare phenolated lignin (PLG). Then, using NaOH as catalyst, the PLG was epoxidized with epoxy chloropropane (ECH) to synthesize the lignin-based epoxy resin (LGEP). The extraction of lignin and the synthesis of LGEP were investigated by the single-factor and orthogonal test, and the Eucalyptus urophylla raw materials, lignin, PLG, and LGEP were characterized by UV, FTIR, XRD, SEM, and TGA. The results demonstrated that when the ionic liquid was [ChCl][Gly], the temperature was 90 degrees C, the time was 4 h, and the liquid-solid ratio was 20:1; the extraction rate of lignin reached 93.73%, and the purity of the regenerated lignin was 96.3%. The mass ratio of PLG to ECH was 1:2.5, the mass fraction of NaOH was 20% of the mass of PLG, the reaction time was 3 h, and the reaction temperature was 95 degrees C. Under this condition, the epoxy value of LGEP was 0.364.
资助项目	Guangdong science project[2015B020241002] ; National Key RD Program[2017YFD0601003] ; National Natural Science Foundation of China (NSFC)[21506217]
WOS研究方向	Energy & Fuels ; Engineering
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000614712600001
资助机构	Guangdong science project ; National Key RD Program ; National Natural Science Foundation of China (NSFC)
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/32568]
专题	中国科学院广州能源研究所
通讯作者	Li, Huiwen
作者单位	1.Guangdong Key Lab New & Renewable Energy Res & De, Guangzhou 510640, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 3.Chinese Acad Sci, Key Lab Renewable Energy, Guangzhou 510640, Peoples R China
推荐引用方式 GB/T 7714	Miao, Changlin,Xinshu, Zhuang,Yang, Lingmei,et al. Study on extraction of lignin and synthesis of lignin-based epoxy resins using ionic liquid[J]. BIOMASS CONVERSION AND BIOREFINERY,2021:12.
APA	Miao, Changlin,Xinshu, Zhuang,Yang, Lingmei,Li, Huiwen,Lv, Pengmei,&Luo, Wen.(2021).Study on extraction of lignin and synthesis of lignin-based epoxy resins using ionic liquid.BIOMASS CONVERSION AND BIOREFINERY,12.
MLA	Miao, Changlin,et al."Study on extraction of lignin and synthesis of lignin-based epoxy resins using ionic liquid".BIOMASS CONVERSION AND BIOREFINERY (2021):12.