نتایج جستجو برای: silica based aerogel

تعداد نتایج: 2966230  

Journal: :Energy and Buildings 2021

Silica-aerogel is one of the nanomaterials that contributes to increasing thermal properties, due its high porosity and low density, also conductivity. The development innovative renderings a current trend, but their impact on hygrothermal performance façade systems requires additional investigation. main goal present work consists discussing new aerogel-based render when applied as component m...

Journal: :International Journal for Research in Applied Science and Engineering Technology 2020

Journal: :Physical chemistry chemical physics : PCCP 2015
Xiaoliang Zeng Lei Ye Rong Sun Jianbin Xu Ching-Ping Wong

The viscoelasticity of boron nitride nanosheet (BNNS) aerogel has been observed and investigated. It is found that the BNNS aerogel has a high damping ratio (0.2), while it exhibits lightweight and negligible temperature dependence below 180 °C. The creep behavior of the BNNS aerogel markedly demonstrates its strain dependence on stress magnitude and temperature, and can be well simulated by th...

2008
Tobias Herman John Beamish

We have investigated the adsorption and desorption of helium near its liquid-vapor critical point in silica aerogels with porosities between 95% and 98%. We used a capacitive measurement technique which allowed us to probe the helium density inside the aerogel directly, even though the samples were surrounded by bulk helium. The aerogel’s very low thermal conductivity resulted in long equilibra...

Journal: :Jurnal teknik kimia dan lingkungan 2023

Proses pengolahan minyak di Indonesia sangat menguntungkan untuk perekonomian negara. Tetapi disamping itu, terdapat hal yang meyebabkan kerugian yaitu terjadinya tumpahan minyak. Tumpahan bisa diatasi salah satunya dengan menggunakan absorben. Silika aerogel dapat digunakan sebagai Bahan baku utama sintesis silika adalah silika. Pada pasir laut rata-rata mengandung cukup tinggi sebesar 70%. Pe...

Journal: :Wood Science and Technology 2022

Abstract In this paper, a method for dimensional stabilization of wood through bulk hydrophobization was investigated using sol–gel process resulting in in-situ formation microporous SiO 2 aerogel. Two different species, beech ( Fagus sylvatica ) and Scots pine Pinus sylvestris were investigated. The incorporation silica aerogel inside the cell wall lumen verified by scanning electron microscop...

Journal: :Water 2023

Water pollution caused by heavy metal ions has attracted worldwide attention. In this work, gold tailings were used as raw materials and the sol–gel method combined with atmospheric pressure drying to achieve low-cost preparation of a silica aerogel. (3-Aminopropyl) triethoxysilane (APTES), ethylenediaminetetraacetic acid disodium salt (EDTA-2Na), chitosan modify aerogel, which was then an adso...

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