Study on UV-protection and hydrophobic properties of cotton fabric functionalized by graphene oxide and silane coupling agent

Shi, Feilong; Xu, Jia; Zhan-zhu, Zhang

doi:10.1108/prt-09-2018-0098

Cited by 11 publications

(10 citation statements)

References 33 publications

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“…That does not differ from practical data known from works [3,4], whose authors, by the way, also associate the resistance to washing with the formation of compounds resistant to washing in the formulations. However, unlike the results reported in [3,4], our data on the effect of the hydrophobic coating and complex flame retardant on the process of inhibiting the mass transfer of water, allow us to state the following:…”

Section: Results Of Determining the Water Permeability Of A Sample Of The Fireproof Fabric Under The Action Of Water On The Hydrophobic Csupporting

confidence: 47%

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Establishing patterns of mass transfer under the action of water on the hydrophobic coating of the fire-retardant element of a tent

Tsapko

Sirko

Vasylyshyn

et al. 2021

EEJET

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This paper reports an analysis of the flame retardants for fabrics that has revealed the fact that the meagerness of data to explain and describe the process of fire protection, specifically the neglect of elastic coatings, leads to that the structures made from fabrics are ignited under the influence of a flame. Devising reliable methods to study the fire protection conditions for fabrics results in the design of new types of fireproof materials. Therefore, there is a need to determine the conditions for the formation of a barrier for water mass transport and to establish a mechanism for slowing down water penetration through the material. In this regard, an estimation-experimental method has been constructed for determining mass transfer under the action of water when using a hydrophobic coating, which makes it possible to assess water penetration. Based on the experimental data and theoretical dependences, the intensity of mass flow under the action of water has been determined, which is 0.000177 kg/m2, which ensures fabric resistance. The study results have proven that the process of waterproofing the fabric involves inhibition of the mass transfer process under the action of water by insulating the surface of the fireproof fabric with a hydrophobic coating. It should be noted that the presence of a hydrophobic coating leads to blocking the fabric surface from moisture penetration. Such a mechanism behind the effect of the hydrophobic coating is likely the factor in adjusting the process through which the integrity of an object is preserved. Thus, the sample of fireproof fabric coated with a water repellent demonstrated, after exposure to water, that the amount of water absorbed did not exceed 0.00012 kg, and, for a fabric without a water repellent, was 0.01 kg. Thus, there is reason to assert the possibility of targeted adjustment of the processes related to water penetration of the fabric by using hydrophobic coatings that could form a protective layer on the surface of the material, which inhibits the rate of water penetration.

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Section: Results Of Determining the Water Permeability Of A Sample Of The Fireproof Fabric Under The Action Of Water On The Hydrophobic Csupporting

confidence: 47%

“…Paper [4] reports a study aimed at protecting against ultraviolet radiation and hydrophobic tissue by modifying cotton fabric with graphene oxide and silane binding agent. The graphene oxide and silane binding agent were fixed to cotton fabric by a stable chemical bond.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Establishing patterns of mass transfer under the action of water on the hydrophobic coating of the fire-retardant element of a tent

Tsapko

Sirko

Vasylyshyn

et al. 2021

EEJET

View full text Add to dashboard Cite

show abstract

“…Work [4] shows protection against ultraviolet radiation and the hydrophobic protection of fabric by modifying cotton fabric with graphene oxide and silane binding agent through immersion-laying-drying. As a result, the cotton fabric was successfully modified with graphene oxide and silane agent and, compared to untreated fabric, the surface of the fabric was smooth and there were no gaps on the fiber.…”

Section: Under the Thermal Action On Wood When Applying A Protective Screen Made From Fire-retardant Fabric The Process Of Temperature Trmentioning

confidence: 99%

Defining patterns of heat transfer through the fire-protected fabric to wood

Tsapko

Bondarenko

2021

EEJET

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Under the thermal action on wood when applying a protective screen made from fire-retardant fabric, the process of temperature transfer is natural. It has been proven that depending on the thermal properties of the coating of fire-proof fabric, this could lead to varying degrees of heat transfer. Therefore, it becomes necessary to study the conditions for establishing low thermal conductivity and establishing a mechanism that inhibits heat transfer to wood. Given this, a mathematical model has been built of the process of heat transfer to wood when it is protected by a screen made of fire-proof fabric. According to the experimental data on determining the temperature on the non-heated surface of the fabric and the resulting dependences, the density of the heat flow transmitted to wood through fire-proof fabric was determined. Thus, with an increase in the temperature, the density of the heat flow to the surface of the wood through a protective screen made of fire-proof protected coating based on "Firewall-Attic" increases to a value above 16 kW/m2, which is not sufficient for ignition of wood. Instead, the density of the heat flow through the protective screen of fire-proof fabric protected by the "Firewall-Wood"-based coating did not exceed 14 kW/m2. This makes it possible to argue about the compliance of the detected mechanism of formation of heat-insulating properties in the protection of wood and the practical attractiveness of the proposed technological solutions. Thus, the peculiarities of inhibition of the process of heat transfer to wood through a protective screen made of fire-proof fabric under the action of a radiation panel imply the formation of a heat-insulating layer of coked cellular material when decomposing the coating. Thus, on the surface of the fire-proof fabric, a temperature above 280 °C was achieved and, on an untreated surface of the fabric, it did not exceed 220 °C, which is insufficient for the ignition of wood.

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“…Using silane coupling agents is another effective method. Silane coupling agents can improve the properties of composites by combining inorganic materials with polymer materials through physical and/or chemical interactions [ 37 , 38 ]. Despite the fact that silane coupling agents can help to connect GO with epoxy, the agglomeration and stacking of GO still remain big problems.…”

Section: Introductionmentioning

confidence: 99%

Nano-SiO2 and Silane Coupling Agent Co-Decorated Graphene Oxides with Enhanced Anti-Corrosion Performance of Epoxy Composite Coatings

Xiao

Ying

2021

IJMS

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Coatings are of great significance for irons and steels in regards to the harsh marine environment. Graphene oxides (GO) have been considered as an ideal filler material of epoxy coating. However, the undesired dispersion in the epoxy together with easy agglomeration and stacking remain great problems for practical application of GO composited epoxy coatings. A method that can effectively solve both self-aggregation and poor dispersion of GO is highly desired. Herein, we present a high dispersion strategy of graphene oxides in epoxy by co-decoration of nano-SiO2 and silane coupling agent. The co-decorated GO filled epoxy coating exhibits high anti-corrosion performance, including high electrochemical impedance, high self-corrosive potential, low self-corrosive current, and superior electrochemical impedance stability for ten days to Q235 carbon steel. This work displays new possibilities for designing novel coating materials with high performance toward practical marine anti-corrosion applications.

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Study on UV-protection and hydrophobic properties of cotton fabric functionalized by graphene oxide and silane coupling agent

Cited by 11 publications

References 33 publications

Establishing patterns of mass transfer under the action of water on the hydrophobic coating of the fire-retardant element of a tent

Establishing patterns of mass transfer under the action of water on the hydrophobic coating of the fire-retardant element of a tent

Defining patterns of heat transfer through the fire-protected fabric to wood

Nano-SiO2 and Silane Coupling Agent Co-Decorated Graphene Oxides with Enhanced Anti-Corrosion Performance of Epoxy Composite Coatings

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