High-performance polymers provide
light, stable materials that also resist high temperatures, and find more and
more applications from leisure goods to aerospace.
The Dreamliner from Boeing marked
the launch of a new generation of airliners. Around 50% of the aluminum
formerly used in aircraft construction has been replaced by Carbon Fibre
Reinforced Polymer (CFRP) composites, which are lighter but at least equally stable.
Carmakers like BMW and carbon fiber manufacturers have teamed up to replace
major car components with CFRP. These are just two examples of how new
materials are revolutionizing the manufacturing industries.
 |
| Boeing and CRFP Technology |
Carbon-fiber-reinforced polymer or carbon-fiber-reinforced plastic (CFRP or CRP or often simply carbon fiber), is an extremely strong and light fiber-reinforced polymer which contains carbon fibers. The polymer is most often epoxy, but other polymers, such as polyester, vinyl ester or nylon, are sometimes used. The composite may contain other fibers, such as Kevlar, aluminium, or glass fibers, as well as carbon fiber. The strongest and most expensive of these additives, carbon nanotubes, are contained in some primarily polymer baseball bats, car parts and even golf clubswhere economically viable.
 |
| Usage of CRFP in Super Cars |
The Relation of Carbon fiber-reinforced polymer (CFRP) with A Supercar
The Lexus LFA is a two-seat supercar from Lexus. It is the second model in the F marque line of performance vehicles from Lexus, following the IS F. As well as its low weight and high strength, carbon fibre reinforced plastic (cFrP) also gave the LFA’s designers a far higher degree of design freedom, allowing them to create shapes, curves and edges that would have been impossible with metal.
The production Lexus LFA features a new V10 engine and a carbon fiber-reinforced polymer (CFRP) body. CFRP materials account for 65 percent of the LFA's body composition by mass.
Technology of Carbon fiber-reinforced polymer (CFRP)
DIALEAD composite is a carbon fiber composite material compressed by resin. The formal name is carbon fiber reinforced plastics or CFRP. Taking advantage of excellent properties not available from conventional metals and ceramics, the product is widely used in various applications.
 |
| Frame of CFRP |
Logic Behind Usage of CFRP rather than Aluminium - Impact on Performance of Super Cars
|
Features
|
Function
|
Comparison
|
|
Lightweight
/ high stiffness
|
Low
bending
High-speed operation Vibration suppression Space saving |
About
1/4 space gravity compared with iron
About 2/3 of aluminum Stiffness and strength higher than iron Early attenuation of vibration possible |
|
High
thermal conductivity
|
Lightweight
heat sink
Incombustibility Stable performance at high temperatures |
Thermal
conductivity equivalent to copper
Higher thermal conductivity realized compared with common plastic materials.
|
|
Low
coefficient of thermal expansion
|
Dimensional
stability
High precision parts |
Excels
in thermal dimensional stability
Coefficient of thermal expansion can be made to zero by composite design. |
Another Applications of CFRP
The coefficient of
thermal expansion can be controlled by optimizing carbon fiber mixing, and can
be made to zero, depending on design.In addition to low thermal expansion,
lightweight, and high stiffness, heat sink and other thermal controls can be
realized, utilizing the product's property of thermal conductivity only in the
orientation of the fiber.
Artificial satellite
Structural materials
for the antenna of large radio telescope
Products are used
for antiseismic reinforcement and repair of structures, taking advantage of
their lightweight, high stiffness and corrosion resistance.
Deck reinforcement
Bridge pier
reinforcement
Propeller shaft
Thanks to the weight
reduction and high stiffness characterizing DIALEAD, the critical number of
revolutions can be Increased.
C/C materials (Carbon
/ carbon fiber composite materials)
Excellent strength and
wear resistance under high temperatures is the reason for the materials
application in a wide range of braking materials from racing cars to airplanes.
High performance
carbon fiber composite roller for industrial use
With little run-out,
our product enables high precision, wide film production, and printing.
Beams for transfer
machines
High stiffness and
weight reduction achieve vibration damping in a short period of time, improving
tact time and productivity.
Pick for transferring
semiconductor wafer
Robot hand for liquid
crystal glass
In addition to
lightweight and high stiffness, the excellent vibration damping property
realizes the improvement of productivity in the field of mechatronics.
Composites and Carbon Fiber Reinforced Polymer
Carbon Fiber Reinforced Polymer (CFRP) is a Polymer Matrix Composite material reinforced by carbon fibers.
The reinforcing dispersed phase may be in form of either continuous or discontinuous carbon fibers of diameter about 0.0004” (10 mkm) commonly woven into a cloth.
Carbon fibers are very expensive but they possess the highest specific (divided by weight) mechanical properties: modulus of elasticity andstrength.
Carbon fibers are used for reinforcing polymer matrix due to the following their properties:
- Very high modulus of elasticity exceeding that of steel;
- High tensile strength, which may reach 1000 ksi (7 GPa);
- Low density: 114 lb/ft³ (1800 kg/m³);
- High chemical inertness.
The main disadvantage of carbon (Graphite) fibers is catastrophic mode of failure (carbon fibers are brittle).
The types of carbon fibers are as follows:
- UHM (ultra high modulus). Modulus of elasticity > 65400 ksi (450GPa).
- HM (high modulus). Modulus of elasticity is in the range 51000-65400 ksi (350-450GPa).
- IM (intermediate modulus). Modulus of elasticity is in the range 29000-51000 ksi (200-350GPa).
- HT (high tensile, low modulus). Tensile strength > 436 ksi (3 GPa), modulus of elasticity < 14500 ksi (100 GPa).
- SHT (super high tensile). Tensile strength > 650 ksi (4.5GPa).
Regards,
Pankaj Goyal (Team Techkiddy)
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