What is carbon fiber laminate?
Afzir Carbon fiber laminate sheet is composed of an arrangement of carbon fibers impregnated with epoxy resin. After arranging the materials, the system is molded and hardened to form plates that are used as reinforcement and retrofitting in engineering and construction projects.
Pre-processed FRP carbon laminate is produced in factories with higher quality and uniformity than other products. This is due to the fact that this product has a higher strength and hardness in wet layering, due to the relatively high fiber to resin ratio. Prefabricated carbon laminate is produced, usually with a width of 50-100 mm and a thickness of approximately 1.3 mm and 1.4 mm. Under operating conditions and working environments, these laminated tapes are bonded to the outer surface of the structure using epoxy resin adhesive.
Carbon laminate sheet is made of carbon fibers that have 4 times the tensile strength of steel. The tensile strength of these products is more than 2400 MPa and they are offered in rolls with a length of 100 meters. The use of this product is recommended in unique cases that were previously impossible with conventional wet layering systems. This product is suitable for use in cases where high strength and low weight are important factors, from drones to car and motorcycle parts.
Key properties of carbon fiber
Our focus is on producing quality products that you can count on for their high performance in difficult conditions. In general, all types of carbon fiber sheets, in addition to high resistance to continuous loads, also have good performance against tensile, compressive and flexural forces. The performance of carbon strips and sheet in plate shear and interlaminar shear is also excellent. Compared to other epoxy laminates, these products have the best tensile strength, flexural modulus, heat distortion temperature and linear expansion. Carbon laminates are very strong due to the woven layers of pure carbon fiber bonded by hard plastics such as epoxy resin. In addition, the maximum tensile and flexural strength of unidirectional carbon fiber sheet occurs along an axis.
Pultrusion carbon fiber laminate (CFRP) for structural reinforcement
Carbon laminate is a stiffened polymer reinforced with polyurethane carbon fiber to reinforce concrete, masonry, steel and wood structures. The CFRP laminate, as an external supporting element, is bonded to the substrate by FRP tape epoxy adhesive.
Why might carbon sheet be considered by the automotive industry?
And as we all know, carbon laminate is high strength and light weight, so it will play a great role in reducing the weight of the car, improving the strength of the body and reducing fuel consumption. Therefore, the use of carbon fiber sheets for cars can lead to a lot of progress and also save energy, which has many social consequences.
The use of FRP carbon laminate in the automotive industry is expected to grow significantly.
There are four major advantages to using carbon sheet composites in a car:
- cause weight loss
- More beauty
- More durability and longevity
- increase vehicle safety
What is the price of carbon sheet?
The global market value of carbon fiber composites is projected to increase from $ 70.4 billion in 2020 to $ 112.8 billion in 2025. Composites have outstanding properties such as hardness, strength, adhesion, thermal and electrical conductivity, fatigue and corrosion resistance. Due to these outstanding properties, composites are preferred over conventional materials such as steel and aluminum in high performance industrial applications.
In terms of carbon fiber sheet purchase value, carbon fiber composites have the fastest growth among fiber composites. Carbon fiber composites are expected to rank highest in terms of carbon fiber sheet price value between 2020 and 2025. Compared to fiberglass and conventional fibers, carbon fiber is twice stronger and 30% lighter than other ones. And will be used in the different industries for a long time.
- High tensile strength
- Corrosion resistance
- Low dead weight at building height
- Delivery with any length (therefore no need to overlap)
- Excellent fatigue behavior
- Easy, flexible and cost-effective technology
- Easy installation of laminates at intersections
- Installation without sound and vibration
- strengthen and increase the shear and flexural strength of ordinary concrete structures, pre-stressed reinforced concrete, building material structures and wooden structures
- increase the rigidity and strength quite clearly
- control and prevent cracks in the plastic area of the members
- Width 50-100 mm
- Thickness 1.2-1.4 mm
|Fiber volume fraction||
Design calculations must be performed and approved by a licensed engineer.
Instructions for laminating
The method of laminating is similar to FRP fibers and it should be noted that the surface preparation operation should be done before installing the carbon sheet.
Substrate preparation can greatly affect the performance quality of unidirectional carbon laminate sheet.
The surface must be clean and dry. It should be free of stagnant water and frost. Dust, dirt, oil, and debris should be removed.
The surface must be prepared for gluing by methods such as light sandblasting, milling, etc.
Large voids should be filled with repairing mortar.
After surface preparation, the adhesion of the substrate should be checked by pull-off test at the discretion of the supervising engineer.
You can cut the FRP carbon laminate to the appropriate length using heavy scissors, reciprocal saw and etc. Make sure that the laminate does not tear at both ends.
Implementation and application
Apply epoxy primer coating to the substrate. Clean the worn side of the tape with acetone or similar solvents to remove any foreign contaminants and allow the solvent to evaporate for at least 30 minutes.
Apply a layer at least 1.5 mm thick of epoxy adhesive to the cleaned part of the FRP tapes. Allow the epoxy to reach maximum viscosity. Run the strips according to the specified curing time of the epoxy additive. The laminate tape system must be applied evenly to achieve all its features.
Use a rubber roller and press the laminate completely onto the epoxy adhesive. So that the glue comes out on both sides.
Unidirectional FRP carbon laminate should only be installed by trained and approved contractors.
Technical documentation request
Frequently Asked Questions
What is FRP carbon sheet or laminate?
FRP sheet or laminate is made of a combination of several layers of unidirectional or bidirectional fiber fabric made of carbon fibers, glass, etc., along with epoxy resin, polyester, vinyl ester, etc. FRP sheets are marketed in different dimensions and thicknesses depending on the intended application. FRP sheets or laminates, due to their light weight, have several times more mechanical properties than steel, aluminum and other materials. For this purpose, FRP laminates are widely used in the implementation of reinforcement designs.
How to use carbon sheets and laminates?
To install laminates made of carbon fiber, the surface must first be cleaned of any contamination. Then the FRP laminates should be cut according to the dimensions stated in the reinforcement design plan, using a saw, and finally, using epoxy resin, to the desired surface.
What are the uses of Frp carbon sheet or laminate?
Frp sheet or laminate is widely used in various industries such as construction, aerospace, medical equipment, sports products, etc. Frp laminate is commonly used in the construction industry to improve and enhance the mechanical properties of structural elements.
What are the characteristics of Frp carbon sheet or laminate?
Features of carbon sheet include high flexural and shear strength, low weight, impermeability, high stability and durability, compatibility with most materials, long service life, ease of installation, high resistance to corrosion, high resistance to heat pointed out.
At what temperature can carbon sheets and laminates be stored?
Carbon sheets and laminates should be stored in a dry place at 4 to 40 °C.
What should be observed when applying carbon sheets and laminates?
Approved personal protective equipment should always be available. The mask is recommended to prevent airborne particles (particles from cutting fibers) from entering the lungs and gloves to prevent skin irritation when handling fabric and resin. Eye shield is recommended to prevent eye irritation. The ventilation system must be completely standard and in the absence of proper ventilation, the use of a respirator is mandatory.
What measures should be considered to clean surfaces impregnated with laminate resin materials?
Dried materials can be cleaned with approved solvents. But the dried material can only be disposed of mechanically, the material must be disposed of in accordance with waste disposal regulations.
What is the standard temperature for best results from sheet metal and carbon laminating?
For best results from installing carbon sheets and laminates using laminate resin, it should be done at a temperature of 5 to 30 degrees Celsius.
What is the price of Frp carbon sheet or laminate?
Frp sheets and laminates are usually sold in the market on a unit length basis. The price of Frp laminates is priced based on the dimensions, thickness and type of resin used in the sheet production process. It is not possible to offer a single price due to fluctuations in the market. For this purpose, for detailed information and inquiries about the price of Frp laminate, you can contact our sales experts in Afzir company.
How to make Frp carbon sheet or laminate?
To prepare carbon sheet or Frp laminate, you can apply through suppliers of building materials or suppliers of materials needed to implement reinforcement projects. Afzir Company is one of the active groups in the field of consulting, design, implementation and supply of products required for building retrofitting.