Effect of additives on properties of cross-linked carboxymethyl starch/polyvinyl alcohol composite films

doi:10.1002/app.51546

CORC > 兰州理工大学 > 兰州理工大学 > 机电工程学院

	Effect of additives on properties of cross-linked carboxymethyl starch/polyvinyl alcohol composite films
	Yang, Liang; Xie, Mingzhu; Fang, Jinxin; Zhang, Tianyun; Wang, Xuemei; Chen, Liping
刊名	JOURNAL OF APPLIED POLYMER SCIENCE
	2021-09
卷号	139 期号:4
关键词	biodegradable films mechanical properties packaging
ISSN号	0021-8995
DOI	10.1002/app.51546
英文摘要	In order to improve the comprehensive performance of cross-linked carboxymethyl starch (CCMS)/polyvinyl alcohol (PVA) composite films, expand its application in the field of daily packaging. The CCMS/PVA blend films were prepared by solution casting method. The effect of environmentally friendly non-toxic additives citric acid, urea, CaCl2, and nano-SiO2 on the microscopic surface morphology, crystallization properties, thermal properties, mechanical properties, water resistance and optical properties of the CCMS/PVA composite films were investigated. The biocomposite films were characterized by SEM, FT-IR, XRD, TGA, tensile testing, water absorption test, water vapor transmission test, and UV-visible spectrophotometer. The result indicates that the compound addition of citric acid and urea greatly increase the elongation at break of the composite films from 9.2% to 225.7%. With the composite addition of citric acid and nano-SiO2, the composite film has the best water resistance and water vapor barrier properties. The composite films added with citric acid, urea and nano-SiO2 can obtain the best thermal stability. Among these four additives, CaCl2 has the largest negative effect on the elongation at break and urea has the largest negative effect on water resistance properties of the CCMS/PVA composites. The CCMS/PVA composite films prepared by adding 30% citric acid and 6% nano-SiO2 has the best comprehensive performance. The tensile strength, elongation at break, solubility, thermal decomposition temperature, water vapor permeability and light transmittance of the CCMS/PVA/CA/S composite films are 3.3 MPa, 168%, 34.6%, 293.2 degrees C, 1.54 x 10(-11) g s(-1) m(-1) Pa-1 and 22.47%, respectively. The biocomposite film has the potential to be applied in the field of packaging, and provides a reference for further research.
WOS研究方向	Polymer Science
语种	英语
出版者	WILEY
WOS记录号	WOS:000695506400001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148656]
专题	机电工程学院
作者单位	Lanzhou Univ Technol, Dept Text Engn, Sch Mech & Elect Engn, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Yang, Liang,Xie, Mingzhu,Fang, Jinxin,et al. Effect of additives on properties of cross-linked carboxymethyl starch/polyvinyl alcohol composite films[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2021,139(4).
APA	Yang, Liang,Xie, Mingzhu,Fang, Jinxin,Zhang, Tianyun,Wang, Xuemei,&Chen, Liping.(2021).Effect of additives on properties of cross-linked carboxymethyl starch/polyvinyl alcohol composite films.JOURNAL OF APPLIED POLYMER SCIENCE,139(4).
MLA	Yang, Liang,et al."Effect of additives on properties of cross-linked carboxymethyl starch/polyvinyl alcohol composite films".JOURNAL OF APPLIED POLYMER SCIENCE 139.4(2021).