Composite aircraft ducting provides cooling air or other
media to aircraft crew and avionic systems. Composite ducting can be
fabricated from Kevlar®, Fiberglass or carbon fibers with various resin systems.
Composite aerospace ducting systems are designed to
outperform metallic ducting by utilizing a ultra low weight design
while maintaining strength and durability for
optimum performance. Additionally, low thermal
conductivity insulation blankets are available on various ducts to meet
stringent thermal requirements.
The above shown are composite air ducts that are fabricated from a
epoxy and phenolic resin systems with
fiberglass and Kevlar® reinforcement.
Composite ducting is designed for use in a restricted envelope
environment, utilizing a high temperature, low smoke emission resin system for optimum performance.
Similar ducting packages incorporate a specialized design for increased
weight savings. These ducts are engineered to
consistently outperform standard military specifications.
Available continuous fiber reinforcements:
Fiberglass fiber
E-Glass - High strength,
lowest cost fiber, available in many forms, widely used in commercial
and industrial products
S-Glass - Improved strength, higher modulus,
higher cost fiber, used in aerospace and high performance pressure
vessel applications.
Carbon / Graphite Fiber - Increased performance, wide strength range, highest fiber cost,
intermediate density, poor impact or damage tolerance, best tensile
strength and stiffness properties.
Thermoplastics - Including Spectra Shield
® with ballistic
properties
Aramid fiber - Good strength, higher modulus, higher cost fiber, very low density, excellent impact
and damage tolerance properties, poor compression and shear strength.
Kevlar®
Available resins:
Polyester
General purpose polyester - Orthophthalic
polyesters, lowest cost systems,
moderate strength and corrosion resistance, room temperature cure.
Improved polyester - Isophthalic polyesters,
slightly higher cost, good strength and corrosion resistance, room temperature cure.
Vinyl Ester - Chemical combination of epoxy and
polyester technology, excellent corrosion resistance, higher cost,
excellent strength and toughness properties.
Bisphenol-A, Fumarate, Chlorendic - More exotic
systems for improved corrosion resistance in harsh environments, higher
cost resins, higher temperature capability.
Epoxy - Wide range of resins available, best strength
properties, usually heat-cure required, good chemical resistance, higher
viscosity systems, higher material cost, applications across broad
market segment range.
For
additional information regarding this product or any of Royal Plastic Mfg.,
Inc. advanced composite products for aerospace applications please click
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