Performance evaluation of glass and rock wool fibers to improve thermal stability and mechanical strength of monolithic phenol-formaldehyde based carbon aerogels

Seraji, Mohammad Mehdi; Kianersi, Sina; Hosseini, Seyed Hadi; Davarpanah, Jamal; Elahi, Seyed Mohammad

doi:10.1016/j.jnoncrysol.2018.04.012

Cited by 26 publications

(16 citation statements)

References 52 publications

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“…Carbon aerogels possess excellent thermal stability and low thermal conductivity which makes it suitable for thermal protection system, particularly for aerospace applications. Seraji et al (2018) have developed the hybrid glass/rock wool fiber based phenol-formaldehyde composite aerogels and investigated the thermal performance. The hybrid glass/rock wool/phenol-formaldehyde composite aerogels were made through sol-gel polymerization under solvent saturated vapor atmosphere.…”

Section: Thermal Properties Of Synthetic Fiber Reinforced Phenolic Compositesmentioning

confidence: 99%

Thermal Properties of Phenolic Composites

Naveen

Muthukumar

Jawaid

2020

Phenolic Polymers Based Composite Materials

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Phenolic resin based natural, synthetic and nano composites are widely used in composite structures at elevated temperature and wall insulators. Thermal stability of natural fibers can be improved with phenolic resin. However, higher thermal stability can be achieved with effective surface treatments. Carbon fiber reinforced phenolic resin can be efficiently utilized in high temperature application due to its thermal stability and low coefficient of thermal expansion. On the other hand, Phenolic foams with different nano fillers can be utilized as thermal insulators due to its low thermal conductivity. This is mainly attributed to the lower volume fraction of solid phase in the material. Addition of nano fillers in the phenolic resin showed outstanding multifunctional properties compared to traditional polymeric composites. Researchers reported that nano clay, carbon and graphene based nano composites showed outstanding thermal stability. Functionalization or advanced treatments (Ultraviolet-ozone) enhanced the degradation temperature of the phenolic based nano composites.

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Section: Thermal Properties Of Synthetic Fiber Reinforced Phenolic Compositesmentioning

confidence: 99%

Thermal Properties of Phenolic Composites

Naveen

Muthukumar

Jawaid

2020

Phenolic Polymers Based Composite Materials

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“…This enables calculation of the temperature dependent mass loss curves from accurate molar and mass yields as a function of temperature over a broad range of heating rates. Recent research on polymeric ablative materials and PICA reported their characterization performances as density, microstructure, ablative, and thermal insulation properties. − M Natali et al reported microstructure and ablation behavior of a nanostructured PICA, prepared using milled carbon fibers in a standard liquid phenolic matrix combined with nanosized fillers (MWNTs and nanoclays). The synergistic effect of the two nanofillers was evaluated in terms of thermal and dimensional stability, ablation resistance, and mechanical properties.…”

Section: Carbon/phenolic Ablative Compositesmentioning

confidence: 99%

Advances in Ablative Composites of Carbon Based Materials: A Review

Kumar

Kandasubramanian

2019

Ind. Eng. Chem. Res.

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Ablative composites are highly endothermic sacrificial thermal protection materials that are indispensable to the aerospace industry. Polymeric ablatives are the most versatile and the largest class of thermal protection materials due to their capability to be to varied hyperthermal environments. Carbon/carbon composites have outstanding mechanical properties at higher temperatures but they are susceptible to oxidation. The oxidation is addressed by matrix modification, application of a coat of ultrahigh temperature ceramics (UHTC), or also by the use of nanostructure-toughened UHTC coatings as discussed in this article. The article presents a comprehensive review of the science and technology of four distinct groups of ablative composites (carbon/carbon, carbon/phenolic, carbon/elastomeric and carbon/ceramic). The selection of the best material formulations for a given environment is ratified by the testing techniques, which have also been reviewed along with a brief discussion on the composites recycling technologies and their environmental and economic impacts.

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“…Carbon aerogels were firstly prepared by polymerizing resorcinol with formaldehyde (RF) under alkaline conditions, followed with supercritical drying and carbonization . Since then, more and more monomers were used, such as melamine‐formaldehyde (MF),, phenol‐formaldehyde (PF), cresol‐formaldehyde (CF), phenol‐furfural, and some polymers, like polyacrylonitriles,, polystyrenes and polyurethanes . In the last few years, an increasing variety of carbon aerogels have emerged, like graphene aerogels,, , carbon nanotube aerogels,, and biomass aerogels .…”

Section: Synthesis Of Carbon Aerogelsmentioning

confidence: 99%

Carbon Aerogels for Environmental Clean‐Up

Gan

Fan

et al. 2019

Eur J Inorg Chem

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Carbon aerogels are a fascinating three-dimensional (3D) monolithic porous material with remarkable physicochemical properties, including low density, large surface area, abundant pore structure, high electrical conductivity, chemical stability, environmental compatibility, adjustable surface chemistry, as well as controllable structural features. These properties endow carbon aerogels with excellent adsorption and catalytic performance. Therefore, they are widely applied in environmental chemistry for removing pollutants like oils, toxic organic solvents, dyes, heavy metal ions in aquatic environments, and vol- [a] Minireview Carbon aerogels show wonderful adsorption and catalytic performance because of the microscopic properties of carbon nanomaterials and the macroscopic structure of the gel. In addi-Guoqiang Gan received his master′s degree in 2016, and since then, he has studied environmental engineering at Dalian University of

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Performance evaluation of glass and rock wool fibers to improve thermal stability and mechanical strength of monolithic phenol-formaldehyde based carbon aerogels

Cited by 26 publications

References 52 publications

Thermal Properties of Phenolic Composites

Thermal Properties of Phenolic Composites

Advances in Ablative Composites of Carbon Based Materials: A Review

Carbon Aerogels for Environmental Clean‐Up

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