Modification of microfibrillated cellulosic foams in a dielectric barrier discharge at atmospheric pressure,Plasma Processes and Polymers

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Modification of microfibrillated cellulosic foams in a dielectric barrier discharge at atmospheric pressure
Plasma Processes and Polymers ( IF 2.9 ) Pub Date : 2020-10-19 , DOI: 10.1002/ppap.202000158
Louis‐Félix Meunier _{1,

2} , Jacopo Profili ₁ , Sara Babaei ₁ , Siavash Asadollahi ₃ , Andranik Sarkissian ₃ , Annie Dorris ₄ , Stephanie Beck _{1,

2,

3,

4} , Nicolas Naudé ₂ , Luc Stafford ₁

Affiliation

This study explores the plasma‐induced modification of microfibrillated cellulose (MFC) foams in a plane‐to‐plane atmospheric‐pressure dielectric barrier discharge with helium and hexamethyldisiloxane as carrier and precursor gases, with and without a gas gap. When the foam took up all of the gas gap, filamentary discharges were generated and burn‐like damage was produced. This resulted in highly inhomogeneous deposits having both hydrophilic and hydrophobic domains. MFC foams taking up only a portion of the gas gap volume generated a homogeneous discharge and induced cellulose defibrillation. They generated effective hydrophobic surfaces on both the top and bottom of the foams. Oleophilicity measurements were also carried out, which support the possibility of an effective separation of oily wastewater using a green and renewable material.

中文翻译：

大气压下介电阻挡放电中微纤化纤维素泡沫的改性

这项研究探索了在以氦气和六甲基二硅氧烷为载气和前体气体（有无气隙）的情况下，在平面到平面的大气压介电势垒放电中，等离子体诱导的微纤化纤维素（MFC）泡沫的改性。当泡沫占据所有气隙时，会产生丝状放电，并产生类似燃烧的损坏。这导致同时具有亲水和疏水域的高度不均匀的沉积物。MFC泡沫仅占据气隙体积的一部分，产生均匀的排放并引起纤维素除纤颤。它们在泡沫的顶部和底部均产生有效的疏水表面。还进行了亲油性测量，这支持使用绿色和可再生材料有效分离含油废水的可能性。

更新日期：2020-10-19

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