title: "Green" films from renewable resources: properties of epoxidized soybean oil plasticized ethyl cellulose films.
abstract: Epoxidized soybean oil (ESO), which is a biomass-derived resource, was first used as a novel plasticizer for ethyl cellulose (EC) film preparation. Surface morphologies, mechanical performances, thermal properties, oxygen and water vapor permeabilities of plasticized EC films were detected in detail to evaluate the plasticizing effect of ESO and explore the plastication mechanisms. Results showed that ESO was an effective plasticizer that outstripped conventional plasticizers, i.e. dibutyl phthalate (DBP) and triethyl citrate (TEC) in producing high-quality films. Especially, at plasticizer concentrations of 15-25%, ESO-EC films had preferable mechanical properties and better thermal stability, as well as non-flammability. In addition, the water vapor permeability of ESO-EC films was lower than that of traditional plasticized films. Their oxygen permeability was also remained in a low level. These outstanding performances were related to the relatively high molecular weight, hydrophobicity, chemical structure of ESO, and the intermolecular interactions between ESO and EC chains.
authors: State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
authors: Dong
authors: D
authors: Yang
authors: State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
authors: Xinwen
authors: X
authors: Peng
authors: State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China. Electronic address: lxzhong0611@scut.edu.cn.
authors: Linxin
authors: L
authors: Zhong
authors: State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
authors: Xuefei
authors: X
authors: Cao
authors: State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
authors: Wei
authors: W
authors: Chen
authors: Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China.
authors: Xueming
authors: X
authors: Zhang
authors: State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
authors: Shijie
authors: S
authors: Liu
authors: State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China; Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China.
authors: Runcang
authors: R
authors: Sun
mesh_terms: D002482:Cellulose / Q000031:analogs & derivatives / Q000737:chemistry*; D015394:Molecular Structure; D010316:Particle Size; D010968:Plasticizers / Q000737:chemistry*; D013024:Soybean Oil / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D010968:Plasticizers; C554142:epoxidized soybean oil; D013024:Soybean Oil; D002482:Cellulose
keywords: Epoxidized soybean oil; Ethyl cellulose; Film; Plasticizer