Performance evaluation of polybenzimidazole coating for aerospace application

Iqbal, Hms; Bhowmik, Shantanu; Benedictus, Rinze

doi:10.1016/j.porgcoat.2017.01.005

Cited by 30 publications

(12 citation statements)

References 5 publications

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“…Polybenzimidazole (PBI) is known to possess the significantly inherent flame retardancy, high tensile strength and modulus, and hydrophilic performance among all thermally stable polymers, [ 1,2 ] which is used in the fields of aerospace, coating varnishes, protective clothing, membranes for fuel cells, and high performance fibers. [ 3–7 ] PBI is firstly synthesized by heating an equimolar mixture of bis(o‐diamine)s and the phenyl esters of different dicarboxylic acids in 1961. [ 8–10 ] The PBI containing the two typical structures, namely, the para‐type (pPBI, referred in this article as poly[2,2′‐(1,4‐p‐phenylene)‐5,5′‐bibenzimidazole]) and the meta‐type (mPBI), is a class of organic polymer with aromatic heterocyclic rings.…”

Section: Figurementioning

confidence: 99%

Fabrication of Ultrahigh‐Strength Polybenzimidazole Fibers via a Novel and Green Integrated Liquid Crystal Spinning Process

Sun

Zhang

Chen

et al. 2020

Macro Materials & Eng

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Herein, the first example of ultrahigh‐strength polybenzimidazole (PBI) fibers using a PBI solution in liquid crystal state is reported via a novel and green integrated spinning technology. Microwave‐assisted polycondensation is utilized to synthesize the polybenzimidazole/polyphosphoric acid liquid crystal spinning solution and pure water is employed as the coagulating and washing bath to afford a green fabrication process. The green integrated spinning technology is eco‐friendly, cheap, and conducive for the large‐scale production of PBI fibers. The as‐prepared PBI fibers display superb flame retardancy, and the outstanding thermal stability of PBI fiber enables it to preserve structural integrity at temperatures as high as 600 °C. More significantly, it prepared the ultrahigh‐strength of PBI fiber up to 0.91 GPa, which is two times than that of the reported PBI fibers, marking a significant breakthrough for the high‐performance PBI fibers.

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Section: Figurementioning

confidence: 99%

Fabrication of Ultrahigh‐Strength Polybenzimidazole Fibers via a Novel and Green Integrated Liquid Crystal Spinning Process

Sun

Zhang

Chen

et al. 2020

Macro Materials & Eng

View full text Add to dashboard Cite

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“…Polybenzimidazole (PBI) derivatives: solid electrolyte for fuel cells [46], fibers [47], thin coatings [48], protective coatings for aerospace applications [49], or for the removal of uranium, thorium, and palladium from aqueous medium [50] are intensively studied in recent years. With an experience of 32 years, PBI Performance Products from Charlotte, North Carolina, is the leader in firefighter safety in Europe, USA, and the Middle East.…”

Section: Applications Of Benzimidazole Derivatives In Other Fields Thmentioning

confidence: 99%

Introductory Chapter: Short Insight in Synthesis and Applications of Benzimidazole and Its Derivatives

Marinescu¹

2019

Chemistry and Applications of Benzimidazole and Its Derivatives

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“…During operation, aircraft, in addition to force influences, are continuously exposed to an extensive complex of external physical influences of a heterogeneous type: ionizing and radio emissions, large differences in thermal disturbances, harmful effects of electrodynamic and gravitational fields, geomagnetic and ionospheric factors [4][5][6][7]. Therefore, the creation of an external multifunctional coating for the protection of rocket and space objects, which has a huge range of possibilities for reflection and absorption from external negative factors, is an urgent task in modern aerospace engineering.…”

Section: Introductionmentioning

confidence: 99%

Influence of electrode arrangement method on specific energy consumption and productivity in electrosynthesis of fine graphite powder

Kupriashov

Shestakov

2022

Int J Adv Manuf Technol

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In this work, the influence of the location of the electrodes on the productivity of electrochemical process and specific energy consumption during direct current electrosynthesis of fine dispersed graphite powder is considered. The authors consider the possibility of using fine dispersed graphite powder obtained by electrolysis as the main component of a multifunctional aerospace coating. For this purpose, two types of devices was constructed: with a coaxial and parallel arrangement of the electrodes. The main elements of the device are a stainless steel cathode and a graphite anode immersed in electrolyte (an aqueous solution of salts). The authors consider the influence of the arrangement of the electrodes in the installation for direct current electrosynthesis from the point of view of the energy efficiency and productivity of electrochemical process. As a result of anodic oxidation, a fine powder from graphite of the MPG-6 brand was obtained. The size of the resulting graphite particles is 4-50 microns. This fine dispersed graphite powder can be used as the main component of a multifunctional coating in aircraft, since it has an even homogeneous structure, as well as higher values of the main mechanical properties of a multifunctional coating, which will lead to a decrease in the number of layers and the thickness of the coating applied. The resulting graphite powder can also be used in the production of fireretardant and heat-insulating materials for the chemical, nuclear industry, instrumentation and heat power engineering.

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Performance evaluation of polybenzimidazole coating for aerospace application

Cited by 30 publications

References 5 publications

Fabrication of Ultrahigh‐Strength Polybenzimidazole Fibers via a Novel and Green Integrated Liquid Crystal Spinning Process

Fabrication of Ultrahigh‐Strength Polybenzimidazole Fibers via a Novel and Green Integrated Liquid Crystal Spinning Process

Introductory Chapter: Short Insight in Synthesis and Applications of Benzimidazole and Its Derivatives

Influence of electrode arrangement method on specific energy consumption and productivity in electrosynthesis of fine graphite powder

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