نتایج جستجو برای: oil impregnated cellulose

تعداد نتایج: 172604  

Journal: :Carbohydrate Polymers 2021

Microfibrillated cellulose (MFC) from Argan (Argania spinosa) shells was prepared by chemical purification of cellulose, then mechanical disintegration via high pressure homogenization performed to isolate fibrils cellulose. Chemical characterization raw argan shell (AS-R), purified (AS-C), and MFC (AS-MFC) included FT-IR, XRD NMR. Morphological AS-MFC assessed using TEM. Next, the use as oil-i...

Journal: :Journal of colloid and interface science 2015
Carlos A Carrillo Tiina E Nypelö Orlando J Rojas

Cellulose nanofibrils (CNF) were incorporated in water-in-oil (W/O) microemulsions and emulsions, as well as water-in-oil-in-water (W/O/W) multiple emulsions using soybean oil. The addition of CNF to the aqueous phase expanded the composition range to obtain W/O/W emulsions. CNF also increased the viscosity of the continuous phase and reduced the drop size both of which increased the stability ...

Journal: :KnE Materials Science 2022

The goal of this research was the development cellulose-based biodegradable drug delivery systems solutions for cosmetic mask applications. Cellulose-based materials derived from natural renewable sources provide a sustainable alternative to nonwoven masks nondegradable fossil-based raw materials. An experimental design executed assemble 3D cellulose fibres matrix and water in oil emulsion comp...

Journal: :High voltage 2022

Cellulose insulation paper is the main component of oil-paper systems in oil-immersed transformers. However, poor thermal conductivity and stability cellulose can lead to ageing. It critical address this issue by improving performance cellulose, nano-SiC-modified models were established molecular simulation, while nano-SiC composite papersheets prepared based on simulation results, effects diff...

Journal: :Cleaner engineering and technology 2021

Nanoparticle incorporated membranes are potential tools to remove hazardous organic pollutants from drinking water sources. Cellulose acetate were impregnated by incorporating zinc nanoparticles, produced using a green synthesis with Mentha plant extract utilizing microwave energy. The synthesized nanoparticles extensively characterized ultraviolet–visible spectroscopy, X-ray diffraction, Scann...

2017
Mejdi Jeguirim Antonis A. Zorpas Lionel Limousy

Olive Mill Wastewater (OMWW) treatment is considered to be one of the main challenges that Mediterranean countries face. Although several procedures and technologies are mentioned in the literature, these techniques have several disadvantages or have been limited to laboratory pilot validation without posterior industrial projection. Recently, an advanced environmental friendly strategy for the...

2016
Yun Gao Yi Yang Zhanbin Qin Yi Sun

Coconut is a high-quality agricultural product of the Asia-Pacific region. In this paper, coconut shell which mainly composed of cellulose, hemicellulose, lignin was used as a raw material for coconut shell oil from coconut shell pyrolysis. The influence of the pyrolysis temperature, heating rate and particle size on coconut oil yield was investigated, and the effect of heating rate on coconut ...

2011
Florence H. Forziati John W. Rowen

A method that uses the intensity of the absorption of the oxidized cell uloses at 5.S microns as a measure of their carboxyl content is described. The analyses are canied out on mineral oil slurries of 1:1 mixtures of fine ly divided polystyrene and cellulose. The absorption of the polystyrene at 6.2 microns is used as a reference band, t hus obviating the necessity of accurately controlling th...

The first stage to have access to a reservoir is the drilling operation. The proper development of this operation plays a major role in increasing productivity. It must be pointed out that the drilling fluid (mud) is pivotal in achieving this objective. Among these fluids, water-based fluids are the most common ones, which have been utilized to drill approximately 80% of all wells and are m...

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