Effects of temperature and pressure on chemical vapour deposition in micro-nano porous structure in char layer of polymer composites

Hui, Kun; Li, Jiang; Li, Kang; Yan, Ning; Bian, Cheng; Guan, Yiwen; Yang, Yanjing; Li, Hongyan

doi:10.1016/j.polymdegradstab.2022.109816

Cited by 5 publications

(8 citation statements)

References 27 publications

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“…The reason for the formation of a thicker char layer is that the pyrolysis of HPCTP generates a large amount of volatile gas, which expands the char layer. In addition, HPCTP generates benzene-like compounds, which are more likely deposited in the inner char layer [ 35 ], thereby thickening the char layer.…”

Section: Resultsmentioning

confidence: 99%

Improving the Ablation Properties of Liquid Silicone Rubber Composites by Incorporating Hexaphenoxycyclotriphosphonitrile

et al. 2023

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The ablative properties of epoxy-modified vinyl silicone rubber (EMVSR) composites containing hexaphenoxycyclotriphosphonitrile (HPCTP) have been systematically studied. The strength of the ablation char layer was greatly enhanced with the addition of HPCTP, which induced the formation of a more complete, denser, and thicker char during oxyacetylene ablation tests. Moreover, the HPCTP-containing EMVSR composites demonstrated lower thermal conductivity and pyrolysis rate when compared with those without HPTCP. At the same time, the thermal insulation properties of HPCTP-filled composites were improved under low heat flow ablation scenarios. The reduction of graphitic carbon content, the formation of phosphate-like crystals as well as the increase of SiC content contributed to strengthening the char layer, which was critical for improving the ablation properties. The optimum char layer strength and thermal insulation properties were achieved when the content of HPCTP was 15 phr, whereas an optimum ablation resistance was achieved at 25 phr HPCTP. This suggests that HPCTP-modified EMVSR composites can be used for thermal protection purposes, especially in the fields of aerospace and aeronautics.

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Section: Resultsmentioning

confidence: 99%

Improving the Ablation Properties of Liquid Silicone Rubber Composites by Incorporating Hexaphenoxycyclotriphosphonitrile

et al. 2023

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“…These substrates exhibit different thermal, mechanical, optical, and catalytic properties depending on the nanomaterial used for functionalization. This fact has led to the development of new nanomaterial deposition techniques on this type of substrate [ 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 ]. The most prominent techniques are presented below.…”

Section: Deposition Of Nanomaterials On Polymeric Substratesmentioning

confidence: 99%

“…The experimental system reported in the study by Hui Kun et al [ 39 ] for this technique consists of six parts, as shown in Figure 4 : a gas device, a high-temperature furnace, a graphite reaction chamber, a carbon layer sample, a vacuum pump, and a tail gas treatment device. The gas system is divided into two parts, one for argon and the other for propylene, each equipped with a flow meter.…”

Section: Deposition Of Nanomaterials On Polymeric Substratesmentioning

confidence: 99%

“…At this point, the argon valve is closed. At the end of the reaction, the reaction gas valve is closed, and the argon valve is opened again [ 39 ].…”

Section: Deposition Of Nanomaterials On Polymeric Substratesmentioning

confidence: 99%

“…The application techniques employed showcase the strategic deployment of nanomaterial deposition to achieve tailored functional enhancements. Notably, Chemical Vapor Deposition (CVD) demonstrates the potential to create nanoporous structures in polymer composites, substantially elevating mechanical properties and resistance to erosion [ 39 ]. On the other hand, Electrophoretic Deposition (EPD) stands out for its adeptness in enhancing bond properties between nano-silica and carbon fiber surfaces [ 40 ].…”

Section: Deposition Of Nanomaterials On Polymeric Substratesmentioning

confidence: 99%

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Advancements in Nanoparticle Deposition Techniques for Diverse Substrates: A Review

Escorcia-Díaz,

García-Mora,

Rendón-Castrillón

et al. 2023

Nanomaterials

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Nanoparticle deposition on various substrates has gained significant attention due to the potential applications of nanoparticles in various fields. This review paper comprehensively analyzes different nanoparticle deposition techniques on ceramic, polymeric, and metallic substrates. The deposition techniques covered include electron gun evaporation, physical vapor deposition, plasma enriched chemical vapor deposition (PECVD), electrochemical deposition, chemical vapor deposition, electrophoretic deposition, laser metal deposition, and atomic layer deposition (ALD), thermophoretic deposition, supercritical deposition, spin coating, and dip coating. Additionally, the sustainability aspects of these deposition techniques are discussed, along with their potential applications in anti-icing, antibacterial power, and filtration systems. Finally, the review explores the importance of deposition purities in achieving optimal nanomaterial performance. This comprehensive review aims to provide valuable insights into state-of-the-art techniques and applications in the field of nanomaterial deposition.

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Experimental study on transpiration cooling with phase change in rotating detonation engine

Lu,

Zhu,

Gong

et al. 2025

Applied Thermal Engineering

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Effects of temperature and pressure on chemical vapour deposition in micro-nano porous structure in char layer of polymer composites

Cited by 5 publications

References 27 publications

Improving the Ablation Properties of Liquid Silicone Rubber Composites by Incorporating Hexaphenoxycyclotriphosphonitrile

Improving the Ablation Properties of Liquid Silicone Rubber Composites by Incorporating Hexaphenoxycyclotriphosphonitrile

Advancements in Nanoparticle Deposition Techniques for Diverse Substrates: A Review

Experimental study on transpiration cooling with phase change in rotating detonation engine

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