Effects of microcrystalline cellulose surface modification on the mechanical and thermal properties of polylactic acid composite films

doi:10.1080/14658011.2020.1801231

	Effects of microcrystalline cellulose surface modification on the mechanical and thermal properties of polylactic acid composite films
	Zhao, Bo 2; Zhang, Yi 2; Ren, Haiwei 1,2
刊名	Plastics, Rubber and Composites
	2020-11-25
卷号	49 期号:10 页码:450-455
关键词	Cellulose Cellulose films Fourier transform infrared spectroscopy Hydrolysis Microcrystals Particle size Particle size analysis Scanning electron microscopy Sulfonation Surface structure Tensile strength Ultrasonics Filling materials Fourier transform infra red (FTIR) spectroscopy Hydroxyl groups Mechanical and thermal properties Microcrystalline cellulose Poly lactic acid Solution casting Ultrasound methods
ISSN号	14658011
DOI	10.1080/14658011.2020.1801231
英文摘要	Microcrystalline cellulose (MCC), extracted from distiller’s grains by nitric acid-ethanol hydrolysis, was prepared for PLA composite films by solution casting. MCC based on the optimum comparison was characterised by particle size analysis and scanning electron microscopy. The results show that the ultrasound combined sulphonation treatment was remarkable for the surface structure of MCC, compared with that modified by sulphonation and ultrasound methods. The MCC/PLA composite films were analysed using Fourier-transform infrared spectroscopy (FT-IR), mechanical properties and thermal resistance. The results show that the properties and performance of MCC/PLA composite film using ultrasound combined sulphonation treatment are obviously better than those of modified films by other methods. For the modified MCC/PLA composite film by sulphonation and ultrasound methods, the FT-IR analysis carried out a large number of hydroxyl groups that are hydrolysed, the tensile strength upped to 505.24 MPa and the thermal-decomposed temperature increased to 320°C from 260°C. The modified MCC would be a beneficial filling material for the properties of PLA composites. © 2020 Institute of Materials, Minerals and Mining Published by Taylor & Francis on behalf of the Institute.
WOS研究方向	Materials Science ; Polymer Science
语种	英语
出版者	Taylor and Francis Ltd.
WOS记录号	WOS:000555186600001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/150981]
专题	生命科学与工程学院
作者单位	1.Institute of Biology, Gansu Academy of Sciences, Lanzhou, China 2.School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou, China;
推荐引用方式 GB/T 7714	Zhao, Bo,Zhang, Yi,Ren, Haiwei. Effects of microcrystalline cellulose surface modification on the mechanical and thermal properties of polylactic acid composite films[J]. Plastics, Rubber and Composites,2020,49(10):450-455.
APA	Zhao, Bo,Zhang, Yi,&Ren, Haiwei.(2020).Effects of microcrystalline cellulose surface modification on the mechanical and thermal properties of polylactic acid composite films.Plastics, Rubber and Composites,49(10),450-455.
MLA	Zhao, Bo,et al."Effects of microcrystalline cellulose surface modification on the mechanical and thermal properties of polylactic acid composite films".Plastics, Rubber and Composites 49.10(2020):450-455.