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首页> 外文期刊>Journal of Applied Polymer Science >Study of Silane Treatment on Poly-lactic Acid(PLA)/Sepiolite Nanocomposite Thin Films
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Study of Silane Treatment on Poly-lactic Acid(PLA)/Sepiolite Nanocomposite Thin Films

机译：聚乳酸/海泡石纳米复合薄膜硅烷处理的研究

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摘要

Poly-lactic acid (PLA) nanocomposite film was prepared with untreated and silane treated sepiolite through solution casting method. Sepiolite is found to be promising nano inorganic filler used to prepare biodegradable PLA nanocomposite films. The effect of sepiolite loading on the thermal, mechanical, gas permeability, and water vapor permeability (WVP) properties of the films was investigated. X-ray diffraction analysis revealed the crystallinity index and well dispersed sepiolite in PLA/sepiolite thin films. By modifying sepiolite, depending on the nanoclay content, the mechanical properties of films were enhanced. PLA/sepiolite films exhibited improved gas barrier and WVP properties compared to neat PLA. The scanning electron microscope results demonstrated that there is a good interface interaction between sepiolite and PLA. The surface treatment of sepiolite increased the adhesion of the PLA matrix to the sepiolite nanoclay which yielded better mechanical properties of the films as compared to pure PLA. It was observed after 1.5% wt sepiolite, nano-filler tended to agglomerate, therefore mechanical and barrier properties of films decreased. (C) 2014 Wiley Periodicals, Inc.
机译：采用溶液流延法，用未经处理和硅烷处理的海泡石制备了聚乳酸（PLA）纳米复合膜。发现海泡石是用于制备可生物降解的PLA纳米复合材料薄膜的有前途的纳米无机填料。研究了海泡石负载量对薄膜的热，机械，气体渗透性和水蒸气渗透性（WVP）性能的影响。 X射线衍射分析显示PLA /海泡石薄膜中的结晶度指数和海泡石分散良好。通过改性海泡石，取决于纳米粘土的含量，增强了薄膜的机械性能。与纯PLA相比，PLA /海泡石薄膜具有更好的阻气性和WVP性能。扫描电子显微镜结果表明，海泡石与PLA之间存在良好的界面相互作用。海泡石的表面处理增加了PLA基体对海泡石纳米粘土的附着力，与纯PLA相比，膜的机械性能更好。在1.5重量％的海泡石之后观察到，纳米填料趋于附聚，因此膜的机械性能和阻隔性能降低。 （C）2014威利期刊公司

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