High-performance fire-resistant polymeric nanocomposite for aerospace applications

This investigation essentially highlights development of novel high-performance fire-resistant polymeric nanocomposite with respect to its orientation towards future generation aviation. Therefore, an attempt has been made to increase thermal stability and fire resistivity of phenolic/cotton fabric reinforced polymer composite, which is desirable for aircraft interiors. There is considerable increase in adhesion characteristics of phenolic fabric reinforced polymer composite due to atmospheric pressure plasma treatment. The phenolic fabric reinforced polymer is subsequently coated with nanosized calcium silicate reinforced polybenzimidazole composite in order to increase thermal stability and fire resistance property. Thermogravimetric analysis reveals that polybenzimidazole-coated fabric reinforced polymer shows significantly better thermal stability than the uncoated phenolic fabric reinforced polymer. There is a significant increase in the limiting oxygen index characteristics of polybenzimidazole-coated fabric reinforced polymer when compared to the uncoated phenolic composite resulting in considerable improvement in fire resistivity of the polymers.

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High-performance polyacrylonitrile-based pre-oxidized fibers fabricated through strategy with chemical pretreatment, layer-by-layer assembly, and stabilization techniques

High Performance Polymers ◽

10.1177/0954008320944419 ◽

2020 ◽

pp. 095400832094441

Author(s):

Xiaolu Sun ◽

Songqi Li ◽

Mingyue Du ◽

Fenglin Huang ◽

Weidong Zhang ◽

...

Keyword(s):

Mechanical Properties ◽

Thermal Stability ◽

Flame Retardant ◽

High Performance ◽

Sodium Tripolyphosphate ◽

Hydroxylamine Hydrochloride ◽

Layer By Layer ◽

Chemical Pretreatment ◽

Limiting Oxygen Index ◽

Pan Fibers

Novel high-performance polyacrylonitrile (PAN)-based pre-oxidized fibers (i.e. OPFHA-MEA-L) with improved thermal stability and flame-retardant and mechanical properties were designed and made from the pristine PAN fibers through chemical pretreatment with hydroxylamine hydrochloride (HA) and monoethanolamine (MEA) aqueous solutions, then coated with chitosan (CS) and sodium tripolyphosphate (STPP) via layer-by-layer (LbL) assembly, and finally followed by stabilization in the air. The morphological structure, flammability, and thermal and mechanical properties of fabricated OPFs were systemically investigated. The results indicated that the PAN fibers after chemical pretreatment with HA and MEA had a large amount of hydrophilic groups. It would facilitate the increase of pre-oxidation degree for PAN fibers during stabilization and the deposition of positively and negatively charged CS-STPP flame-retardant coating. The fabricated OPFs (i.e. OPFHA-MEA-10) demonstrated superior comprehensive properties with charred residue of about 68.2%, breaking strength of about 295.1 N, breaking elongation of 12.6%, and limiting oxygen index value of about 41.5%, respectively, contributing to the improved thermal stability and flame-retardant and mechanical properties. It is envisioned that this innovative type of high-performance OPFs could be utilized for potential applications as flame retardant and in high temperature filtration.

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Assessment of microcapsule—catalyst particles healing system in high performance fibre reinforced polymer composite

Smart Materials and Structures ◽

10.1088/0964-1726/25/8/084009 ◽

2016 ◽

Vol 25 (8) ◽

pp. 084009 ◽

Cited By ~ 6

Author(s):

P A Bolimowski ◽

D F Wass ◽

I P Bond

Keyword(s):

Polymer Composite ◽

High Performance ◽

Reinforced Polymer ◽

Healing System ◽

Fibre Reinforced Polymer ◽

High Performance Fibre

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Effect of Fiber-Reinforcement Material on the Leakage Failure in Polymer Composite Pressure Piping

Volume 3: Design and Analysis ◽

10.1115/pvp2008-61540 ◽

2008 ◽

Author(s):

Pierre Mertiny ◽

Kulvinder Juss

Keyword(s):

Glass Fiber ◽

Polymer Composite ◽

High Performance ◽

Low Cost ◽

Fiber Reinforcement ◽

Fiber Material ◽

Reinforced Polymer ◽

Wide Availability ◽

Fiber Materials ◽

Leakage Failure

Fiber-reinforced polymer composite piping has traditionally been produced using E-glass fiber materials. E-glass has been the preferred reinforcement phase due to its good corrosion resistance, low cost and wide availability. However, in recent years other materials have emerged on the market, or are becoming competitive in price. Mineral based basalt fibers and high-performance S-glass are examples of such materials. In the present study the performance of basalt and S-glass reinforcements was investigated in comparison to a commonly used advanced E-glass fiber material. Employing the same epoxy matrix phase, specimens from the various fiber materials were produced, and their leakage behavior was assessed using experimental means. It was observed that the type of fiber reinforcement had limited effect on leakage behavior of pressure-retaining pipe structures.

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