文献类型：期刊文献

英文题名：Preparation and Characterization of Thermoplastic Potato Starch/Halloysite Nano-Biocomposites: Effect of Plasticizer Nature and Nanoclay Content

作者：Ren, Jiawei[1,2];Khanh Minh Dang[2,3];Pollet, Eric[2];Averous, Luc[2]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Preparat & Applicat Ultrafine Mat, Minist Educ,Polymer Proc Lab, Shanghai 200237, Peoples R China;[2]Univ Strasbourg, CNRS, UMR 7515, BioTeam,ICPEES ECPM, 25 Rue Becquerel, F-67087 Strasbourg 2, France;[3]Kasetsart Univ, Fac Agroind, Dept Packaging & Mat Technol, Bangkok 10900, Thailand

年份：2018

卷号：10

期号：8

起止页码：CP171

外文期刊名：POLYMERS

收录：;EI(收录号：20183105618974);WOS:【SCI-EXPANDED(收录号:WOS:000445410200001)】；

基金：J.R. would like to thank the China Scholarship Council (CSC) for its financial support. Thanks are also extended to Roquette and Tereos for their kind supply of the potato starch and plasticizers.

语种：英文

外文关键词：halloysite nanoclay; plasticized starch; glycerol; sorbitol; microstructure; mechanical properties

摘要：Nano-biocomposites based on halloysite nanoclay and potato starch were elaborated by melt blending with different polyol plasticizers such as glycerol, sorbitol or a mixture of both. The effects of the type of plasticizer and clay content on potato starch/halloysite nano-biocomposites were studied. SEM analyses combined with ATR-FTIR results showed that a high content of sorbitol had a negative effect on the dispersion of the halloysite nanoclay in the starchy matrix. XRD results demonstrated that incorporation of halloysite nanoclay into glycerol-plasticized starch systems clearly led to the formation of a new crystalline structure. The addition of halloysite nanoclay improved the thermal stability and decreased the moisture absorption of the nano-biocomposites, whatever the type of plasticizer used. Halloysite addition led to more pronounced improvement in mechanical properties for glycerol plasticized system compared to nanocomposites based on sorbitol and glycerol/sorbitol systems with a 47% increase in tensile strength for glycerol-plasticized starch compared to 10.5% and 11% for sorbitol and glycerol/sorbitol systems, respectively. The use of a mixture of polyols was found to be a promising way to optimize the mechanical properties of these starch-based nanocomposites.