State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
Carbohydr Polym. 2014 Mar 15;103:198-206. doi: 10.1016/j.carbpol.2013.12.043. Epub 2013 Dec 24.
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.
环氧化大豆油（ESO）是一种生物量衍生资源，最初被用作乙基纤维素（EC）薄膜制备的新型增塑剂。详细检测了增塑 EC 薄膜的表面形态、力学性能、热性能、氧气和水蒸气透过性，以评估 ESO 的增塑效果并探索增塑机理。结果表明，ESO 是一种有效的增塑剂，在生产高质量薄膜方面优于传统增塑剂，如邻苯二甲酸二丁酯（DBP）和柠檬酸三乙酯（TEC）。特别是在增塑剂浓度为 15-25%时，ESO-EC 薄膜具有更好的力学性能和热稳定性，以及不可燃性。此外，ESO-EC 薄膜的水蒸气透过率低于传统增塑薄膜。其氧气透过率也保持在较低水平。这些优异的性能与 ESO 相对较高的分子量、疏水性、化学结构以及 ESO 与 EC 链之间的分子间相互作用有关。
