What are carbon fibers and fibers and what are their benefits and uses?What are carbon fibers?
CFRP carbon fibers are a subset of FRP fibers that are obtained from the decomposition of organic carbon materials. Carbon fiber is black, insoluble in water and odorless, and has very high resistance to corrosive materials such as acids, bases and organic materials. The texture of these fibers is available in two forms: unidirectional texture in which the carbon fiber is parallel to the zero direction and bidirectional texture in which the carbon fiber is woven together in two directions (warp and weft) at zero and 90 degrees. Carbon fiber is used in many fields such as building reinforcement, defense industries, automotive manufacturing, and many other important industries. The adhesives and resins used in carbon fiber filaments increase the shear and bending load-bearing capacity of structures, which is highly desirable in the structural improvement sector.
What are the characteristics of carbon fibers and fibers?
Carbon fiber is one of the most widely used fibers in the reinforcement and composite industry. These fibers have the highest modulus of elasticity compared to glass and Kevlar fibers. Among the various advantages of carbon fibers, the most prominent is the extraordinary tensile strength relative to its weight (carbon is approximately one-third the weight of steel and 5 to 10 times stronger). One of the most prominent characteristics of carbon fiber is its impermeability to x-rays. Carbon fiber also has excellent electrical conductivity and is offered on the market in the form of fabric arches. Carbon fiber is an element with a density of 2.27g/cm3 and has various crystal forms. The carbon fiber strands, which are made of carbon fiber, are much thinner than human hair with a diameter of between 6 and 10 micrometers. The value of carbon fibers in the market is the best option from an economic point of view, given their long useful life and the provision of high quality structural members over time. Carbon fibers and fibers in various elastic moduli and tensile strengths and with unidirectional and bidirectional textures are supplied by Afzir Company for the production of composite materials for various industries and the reinforcement of various concrete structures. According to the needs of various industries in Iran, carbon fibers are offered in a wide range of fiber types from 3K to 24K and with different weights and widths.
Choosing the right unidirectional carbon fiber
To obtain unidirectional or bidirectional carbon fibers, you must first consider the type of application you expect from the fibers and then refer to institutions that are active in the field of strengthening buildings and structures. CFRP (Carbon Fiber Reinforced Polymer) is one of the best choices for building repair and reinforcement. If you decide to buy carbon fiber for structural repair and reinforcement, you can use a variety of polymer composites reinforced with CFRP carbon fiber, but keep in mind that the type of fiber selected can have a great impact on the overall mechanism and costs. If you intend to buy carbon fibers, we offer a complete design of unidirectional carbon fiber and bidirectional carbon CFRP fabric according to your project conditions.
Longitudinal dimensions
The width of all Afzir Company carbon fabrics is 50 to 100 centimeters, which makes them easy to work with and install. So that they can be put together and produce a seamless final part. In addition, they are easier to store, transport and ship at these dimensions. All carbon fibers have a tensile modulus of 230 GPa while being extremely stiff and have a tensile strength of 4900 MPa.
Weight
Like other fabrics, carbon fiber fabrics are classified by weight in “grams per square meter.” So a 160 gram fabric actually weighs 160 grams per square meter. In general, the heavier the fabric, the higher the fiber density per thickness, and therefore the stronger the final composite part. Also, like other fabrics, you can use more additional layers for greater strength.