文献类型：期刊文献

英文题名：Structures, Properties and Potential Applications of Corncob Residue Modified by Carboxymethylation

作者：Gao, Shishuai[1,2,3,4] Liu, Yupeng[1,2,4] Wang, Chunpeng[1,2,4] Chu, Fuxiang[1,2,4] Xu, Feng[3] Zhang, Daihui[1,2,4]

第一作者：高士帅;Gao, Shishuai

通信作者：Chu, FX[1];Zhang, DH[1];Chu, FX[2];Zhang, DH[2];Xu, F[3];Chu, FX[4];Zhang, DH[4]|[a0005728d87cb2daf502d]储富祥;

机构：[1]Chinese Acad Forestry, Natl Forestry & Grassland Adm, Natl Engn Lab Biomass Chem Utilizat, Inst Chem Ind Forest Prod,Key Lab Biomass Energy, Nanjing 210042, Peoples R China;[2]Chinese Acad Forestry, Natl Forestry & Grassland Adm, Key Lab Chem Engn Forest Prod, Inst Chem Ind Forest Prod,Key Lab Biomass Energy, Nanjing 210042, Peoples R China;[3]Beijing Forestry Univ, Coll Mat Sci & Technol, Beijing 100083, Peoples R China;[4]Nanjing Forestry Univ, Coinnovat Ctr Efficient Proc & Utilizat Forest Re, Nanjing 210037, Peoples R China

年份：2020

卷号：12

期号：3

外文期刊名：POLYMERS

收录：;EI(收录号：20201508385426);Scopus(收录号：2-s2.0-85082719438);WOS:【SCI-EXPANDED(收录号:WOS:000525952000137)】；

基金：We acknowledge the support from National Key R&D Program of China (2017YFE0106800), Jiangsu Key Laboratory for Biomass Energy and Materials (JSBEM-S-201901), and National Natural Science Foundation of China (31890774).

语种：英文

外文关键词：natural fibers; biocomposites; carboxymethylation; adhesive

摘要：In this study, corncob residue (CR) valorization was simply and efficiently realized via carboxymethylation, and its enhanced performance as fillers in urea-formaldehyde (UF) resin was investigated. The structures of corncob residue and carboxymethylated derivative were analyzed by nuclear magnetic resonance (NMR), Fourier-transform infrared spectroscopy (FTIR), and Raman techniques, respectively. The thermal stability, morphology, viscosity control, and adhesive strength were then investigated to evaluate its performance as fillers in UF resin composite. Similar to commercial flour, carboxymethylated CR could effectively disperse in UF resin. It also exhibited a better initial viscosity control between 30 and 50 degrees C. The adhesive test analysis showed that the shear strength of resin with carboxymethylated CR addition could reach 1.04 MPa, which was comparable to flour (0.99 MPa) and significantly higher than raw CR (0.45 MPa). Moreover, a low formaldehyde emission was observed.