TEOS/Silane-Coupling Agent Composed Double Layers Structure: A Novel Super-hydrophilic Surface

Abstract

In order to increase the anti-dust and self-cleaning property of photovoltaic cells, this paper proposes a simple way to synthesis a novel self-cleaning, super-hydrophilic coating material based on double layers structure. The first layer is made from TEOS for gaining the number of Si-OH bond on the surface of the glass, and then the second layer, which is a special silane-coupling agent, is attached on the TEOS layer firmly. Since the silane-coupling agent has a superhydrophilic chain, after the reaction, such kind of chain would go towards to the outside surface of the glass substrate and make the surface super-hydrophilic. InstructionGreenhouse gas emissions due to burning fossil fuels are the great challenge to human beings nowadays. For decreasing fossil energy consumption, renewable energy should be used. Solar energy application is an effective method. And an effective way to use the solar energy is to generate solar power from photovoltaic (PV) cells. [1] However, a lot of factors affect the energy efficiency of solar PV panels, such as the temperature, orientation, solar radiation intensity, front surface soiling [2][3][4][5] and so on. Among them, front surface soiling could influence the efficiency a lot if the PV cell is soiled badly. For example, the dust accumulation on the front surface is a major factor, which cause the huge decrease of the cell

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Double‐Layer Surface Modification of Polyamide Denture Base Material by Functionalized Sol‐Gel Based Silica for Adhesion Improvement

“…Therefore, they reinforce the adhesion and increase the strength of the bonded joint . Thermoplastic polymers benefit the most from aminosilanes, which are widely used for surface treatments . They have sensitive hydrolytic centers that form stable covalent bonds with superficial functional groups, and provide an organic substitute to react with other groups, and consequently cause permanent changes in the surface properties of the substance .…”

“…19,21,28 Thermoplastic polymers benefit the most from aminosilanes, which are widely used for surface treatments. 18,20,29,30 They have sensitive hydrolytic centers that form stable covalent bonds with superficial functional groups, and provide an organic substitute to react with other groups, and consequently cause permanent changes in the surface properties of the substance. 20,30 The method employed in this study is based on the fact that hydrogen atoms of the amines (-NH2) can interact and couple with the polyamide surface functional groups and create active sites.…”

Wettability alteration analysis of smart water/novel functionalized nanocomposites for enhanced oil recovery

“…Therefore, to adsorb nanoparticles on these interfaces, their surface activity can be improved by modifying the surface of the nanoparticles. For instance, it has been shown that the ether groups in the chain of silanic compounds are used to cause surface water wetting, as reported by Yan et al (2015) (Yan et al 2015). Behzadi and Mohammadi (2016) investigated the surface modification of nanosilica by measuring the contact angle and IFT for EOR process (Behzadi and Mohammadi 2016).…”