文献类型：期刊文献

英文题名：Preparation and characterization of cellulose nanocrystal extracted from Calotropis procera biomass

作者：Song, Kaili[1,2,3];Zhu, Xiaoji[1,3];Zhu, Weiming[1,3];Li, Xiaoyan[4]

机构：[1]Zhejiang Sci Tech Univ, Coll Mat & Text, Engn Res Ctr Ecodyeing & Finishing Text, Hangzhou 310018, Zhejiang, Peoples R China;[2]Shaoxing Univ, Key Lab Clean Dyeing & Finishing Technol Zhejiang, Shaoxing 312000, Zhejiang, Peoples R China;[3]Zhejiang Sci Tech Univ, Key Lab Adv Text Mat & Mfg Technol, Minist Educ, Hangzhou 310018, Zhejiang, Peoples R China;[4]Hebei Univ Sci & Technol, Coll Text & Garment, Shijiazhuang 050018, Hebei, Peoples R China

年份：2019

卷号：6

期号：1

外文期刊名：BIORESOURCES AND BIOPROCESSING

收录：SCI-EXPANDED(收录号：WOS:000501203200001)、、WOS

基金：This work was financially supported by the public projects of Zhejiang Province (LGF20E030005, LGF20E030006), Zhejiang Provincial Top Key Academic Discipline of Chemical Engineering and Technology of Zhejiang Sci-Tech University (CETT 2017003), the Opening Project of Key Laboratory of Clean Dyeing and Finishing Technology of Zhejiang Province (Project Number: 1808) and Scientific Research Foundation of Zhejiang Sci-Tech University (Grant Number 18012211-Y).

语种：英文

外文关键词：Cellulose nanocrystals; Calotropis procera fiber; Agriculture residue; Acid hydrolysis

外文摘要：Calotropis procera fiber (CPF) is the fruit fiber of C. procera and belongs to a typical cellulosic fiber. In this study, Calotropis procera fiber (CPF) was first purified in the pretreatment process including delignification and bleaching before the isolation of cellulose nanocrystal. Chemical composition of Calotropis procera fiber was determined according to TAPPI standard method. It was composed of 64.0 wt% cellulose, 19.5 wt% hemicelluloses, and 9.7 wt% of lignin. The morphology of the Calotropis procera fiber and fiber after each pretreatment process was also investigated. Cellulose nanocrystal was extracted by classical sulfuric acid hydrolysis of the pretreated Calotropis procera fiber. TEM and SEM were used to analyze the morphologies of the obtained CNC. The crystallinity, thermal stability and suspension stability of the CNC were also investigated. The interesting results proved that this under-utilized biomass could be exploited as a new source of cellulose raw material for the production of cellulose nanocrystal.