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|Characteristics :||Anti-corrosion||Application:||Motor Cyle Exhaust Canister Cover|
|The Plate Form:||Wood/monochromatic||Origin:||Shanghai,China|
Municipal engineering water supply pipeline interface of glass fiber filament wound
USES structure and characteristics
Carbon fiber profile is a kind of high strength and modulus of high temperature resistant fiber, high-end
varieties for chemical fiber.Because carbon fiber is light and hard, so its application is very extensive.
Made of carbon fiber profile reinforced plastic light texture, high temperature resistant, radiation protection,
water resistance, corrosion resistance, is manufacture of aircraft, weapons and corrosion resistant
equipment excellent material.
In recent years, carbon fiber is widely used in large aircraft, such as the A350 and A380 airbus, Boeing
787 using carbon fiber composite materials to reduce fuel consumption.
Another large wind turbine blade, the car, vehicle body, are an important factor of carbon fiber composite
materials demand increase.Bicycle use carbon fiber composite material as the frame, but because of
carbon fiber composite materials manufacturing cost is high, more than for the higher-order type to use.
Second, the structure and features:
Each carbon fiber composed of thousands of tiny carbon fiber profile more, about 5 to 8 microns in
diameter.At the atomic level of carbon fiber and graphite is very similar, is made up of layers of carbon
atoms arranged in hexagonal shape.The difference between the links between layer and layer.Between
layers of graphite crystal structure, it is loosely connected, and carbon fibre are not crystal structure, the
connections between the layers is irregular.So to prevent slip to enhance physical strength.
General carbon fiber density of 1750 kg/m3.High heat conduction ability but the capacity of the battery is
low, the heat capacity of the carbon fiber is lower than copper.When heated, carbon fiber can become
thick and short.Although carbon fiber natural color is black, but can take it with a different color.
High dielectric strength
High mechanical strength
Light weight material
Applied in engineering
Commonly used in civil engineering material with cement, sand, steel, wood, brick, etc., in which the
combination of concrete and reinforcement is considered to be the most widely used structural materials.
But as the growth of the structure service time, more and more problems are exposed, the representative
of which is reflected by the emergence of "crisis" of concrete in the 1980 s of the durability of the concrete.
The application of steel structure also has a certain proportion, it overcome the weakness of their heavy
concrete structure, but in the use of yield in the high temperature and brittle fracture in the earthquake,
the representative of which is the United States "9 · 11" incident and the hanshin earthquake in Japan.Get
a rapid development of materials science in the 20th century, the fiber composite material was applied in
civil engineering, glass fiber reinforced plastic is the most widely used in it.The application of this kind of
material to make the structure of civil engineering, functional diversity, flexible but lower modulus of glass
fiber reinforced plastic, limits its application as a structural material in civil engineering.
Carbon fiber than high strength and modulus ratio, and 10 times respectively steel more than 5 times;At
the same time it also has excellent electric and magnetic resistance, high temperature resistant
performance and resistance to chemical attack, is considered the best comprehensive properties of
advanced materials, so its application in various fields to promote very quickly.The application of carbon
fiber flexible and varied in form, which can use the long fiber as structure material, and use the short
fibers as functional materials;(2) substrate but resin and can be cement;(3) with the matrix of composite
material can be placed in the component appearance but also in internal components;(4) can be used
independently and can be blended with other fibers used;5. The composite material is anisotropic material,
thus can change performance in all directions, especially the material can be designed into expansion
coefficient is zero.Carbon fiber in many aspects in civil engineering can take advantage of its performance.
(2) the application status of carbon fiber in civil engineeringThe carbon fiber mainly structural materials
and functional materials in two forms used in civil engineering,including most used as structural materials.
Carbon fiber in civil engineering applications of the biggest obstacles is the price, so how to reduce the
cost of carbon fiber, increase the number of the use of carbon fiber is the key to the urgent topic, this
mainly involves two aspects of raw materials and production technology.Should not only improve carbon
fibers and matrix, the properties of bonding materials, make it meet the requirements of special
environment such as high temperature, corrosion, and developed can meet the demand of large civil
engineering structure size of production technology.Theory of another, the study of carbon fiber itself is
not enough, in the civil engineering design theory is not mature, also can only rely on using a larger safety
factor to ensure the reliability of the structure.Set by the use of carbon fiber at home and abroad there
exist great differences in standards, unity and strengthen the norms and standards is also a key to
promote its application.Advantage is its specific strength and carbon fiber than high modulus, which made
the structure of light weight, high strength is the main direction of future development.Excellent
comprehensive performance of carbon fiber, make its at the same time, as structural materials and
functional materials application research is also quite important, it can solve many occasions other
materials can't solve the problem.At present, the combination of carbon fiber and concrete is mainly in
terms of reinforcement, and less in application in the design of the original structure.Because of the cost
issues, permanent template also give priority to with glass fiber.Carbon fiber application research work in
this respect is in the initial stage, limited to the beam and column, were no reports of concrete floor and
wall.And carbon fiber in civil engineering application has a very broad space for development.