Ablation behavior of inorganic particle-filled polybenzoxazine composite coating irradiated by high-intensity continuous laser

Xu, Feng; Zhu, Shizhen; Ma, Zhuang; Li, Hezhang; Wang, Jiawei; Wu, Taotao; Wang, Fuchi

doi:10.1016/j.ceramint.2019.04.233

Cited by 11 publications

(4 citation statements)

References 28 publications

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“…Polybenzoxazine (PBO) is a new type of functional resin. − It has emerged as a thermal protection material in aerospace and has been favored by researchers because of its high charring yield and machinability, − showing potential ablative characteristics, superior mechanical strength, and resistance to high temperatures even in an oxygen atmosphere. However, PBO material exhibits a relatively high density and thermal conductivity due to the densified structure of the thermosetting PBO resin.…”

Section: Introductionmentioning

confidence: 99%

Nanoporous Polybenzoxazine Aerogels for Thermally Insulating and Self-Extinguishing Materials in Aerospace Applications

Xiong

Yang

Zhang

et al. 2021

ACS Appl. Nano Mater.

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Phenolic-based aerogel composites possess particular characteristics, such as low thermal conductivity, light weight, and superior ablative properties, in near-space vehicles. However, their machinability and flammability require further improvement, hampering their application for high-performance thermal protection systems in the aerospace field. Here, we prepare nanoporous polybenzoxazine (PBO) aerogels with outstanding thermally insulating and self-extinguishing properties by an effective-cost ambient pressure drying (APD) approach rather than a conventional high-pressure supercritical drying pattern. The PBO aerogels are prepared by adopting different exchange solvents of tert-butyl alcohol, ethanol, and n-hexane. The results obtained indicate that PBO aerogels (with n-hexane as the exchange solvent) by APD have an optimal three-dimensional nanoporous network structure, a pore size distribution in the range 20−140 nm, an obvious self-extinguishing property (extinguished itself instantly despite exposure to a 1200 °C flame), superior thermal insulation (the cold surface temperature of the sample reached only 36.4 °C after 400 s despite its opposite surface existing at a 65.8 °C atmosphere), and excellent machinable properties (easy-to-form special-shaped sample). PBO aerogels are a great potential candidate material system for thermal protection systems in aerospace applications in the future.

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Section: Introductionmentioning

confidence: 99%

Nanoporous Polybenzoxazine Aerogels for Thermally Insulating and Self-Extinguishing Materials in Aerospace Applications

Xiong

Yang

Zhang

et al. 2021

ACS Appl. Nano Mater.

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“…Therefore, it cannot be detected by the XRD. lattice planes of graphite, respectively [22,23]. It indicates that the residual char underwent a certain degree of graphitization transformation at high temperature [24].…”

Section: Ablation Behavior Of the Surface-decorated Zrb2-sic-modifiedmentioning

confidence: 99%

Ablation Behavior of a Carbon Fabric Reinforced Phenolic Composite Modified by Surface-Decorated ZrB2/SiC

Zhu

et al. 2020

Materials

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Carbon fabric reinforced phenolic composites were widely used as TPSs (thermal protection system) material in the aerospace industry. However, their limited oxidative ablation resistance restricted their further utility in more serious service conditions. In this study, the surface-decorated ZrB2/SiC and its modified carbon fabric reinforced phenolic composites have been successfully prepared. The self-modification mechanism of the surface-decorated ZrB2/SiC particles were characterized. The mechanical performance and ablation behavior of the composites were investigated. Results showed that the ZrB2/SiC particles possessed a good surface-decorated effect, which achieved good compatibility with the phenolic resin. The mechanical performance of the modified phenolic composite was effectively improved. The anti-oxidative ablation performance of the composite was improved. The mass ablation rate of the surface-decorated ZrB2–SiC-modified carbon fabric reinforced phenolic composites was 25% lower than that of the unmodified composites. The formed ZrO2 ceramic layer attached to the surface of the residual chars prevented the heat energy and oxygen from the inner material. Meanwhile, the volatilization of SiO2 and B2O3 effectively increased the heat dissipation. All these results confirmed that the ZrB2–SiC particles can effectively improve the ablation resistance of the composite, which provided a basis for the application of the composites to more serious service environments.

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“…Traditional laser protection materials fail at a certain temperature, but polybenzoxazines' high thermal stability and char yield make it a promising material for laser protective coatings [129]. Xu et al [129] studied laser protective coatings, while Ma et al [130] studied laser ablation behavior on polybenzoxazine-based composites. Laser protective coatings are an important design component for aircraft materials.…”

Section: Extreme Property Materialsmentioning

confidence: 99%

“…Polybenzoxazines high char yield makes it a promising ablation material. The authors studied the ablation behavior of various polybenzoxazine-based composites through high-intensity continuous laser irradiation tests [129] and analyzed the high energy laser-induced damage mechanisms [130].…”

Section: Extreme Property Materialsmentioning

confidence: 99%

Advanced Carbon Materials Derived from Polybenzoxazines: A Review

et al. 2021

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This comprehensive review article summarizes the key properties and applications of advanced carbonaceous materials obtained from polybenzoxazines. Identification of several thermal degradation products that arose during carbonization allowed for several different mechanisms (both competitive ones and independent ones) of carbonization, while also confirming the thermal stability of benzoxazines. Electrochemical properties of polybenzoxazine-derived carbon materials were also examined, noting particularly high pseudocapacitance and charge stability that would make benzoxazines suitable as electrodes. Carbon materials from benzoxazines are also highly versatile and can be synthesized and prepared in a number of ways including as films, foams, nanofibers, nanospheres, and aerogels/xerogels, some of which provide unique properties. One example of the special properties is that materials can be porous not only as aerogels and xerogels, but as nanofibers with highly tailorable porosity, controlled through various preparation techniques including, but not limited to, the use of surfactants and silica nanoparticles. In addition to the high and tailorable porosity, benzoxazines have several properties that make them good for numerous applications of the carbonized forms, including electrodes, batteries, gas adsorbents, catalysts, shielding materials, and intumescent coatings, among others. Extreme thermal and electrical stability also allows benzoxazines to be used in harsher conditions, such as in aerospace applications.

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Ablation behavior of inorganic particle-filled polybenzoxazine composite coating irradiated by high-intensity continuous laser

Cited by 11 publications

References 28 publications

Nanoporous Polybenzoxazine Aerogels for Thermally Insulating and Self-Extinguishing Materials in Aerospace Applications

Nanoporous Polybenzoxazine Aerogels for Thermally Insulating and Self-Extinguishing Materials in Aerospace Applications

Ablation Behavior of a Carbon Fabric Reinforced Phenolic Composite Modified by Surface-Decorated ZrB2/SiC

Advanced Carbon Materials Derived from Polybenzoxazines: A Review

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