Carbon fiber prepreg is a composite material made of reinforcements, such as carbon fiber yarn, resin matrix, release paper and other materials, which are processed by coating, hot pressing, cooling, laminating, coiling and other processes, also known as carbon fiber prepreg. cloth.
1. Carbon cloth grade
24T-65T (PAN series), low carbon 24T, 30T, high carbon 40T, 46T, 60T, 65T, or KCF KVF WVF VCK.
The measure is the force required to stretch the fiber to double its length, indicating the stiffness of the fiber. For example, 1 cm of 24T carbon cloth needs 24 tons of force to extend to 2 cm.
2. Types of carbon cloth
Each tonnage of carbon distribution is divided into different grades, epoxy-coated carbon, pure carbon, high resin low carbon, low resin high carbon. At the same time, the sorting process of carbon filaments is different, the quality of carbon sand is different, and the quality will be different.
3. Preparation method of carbon cloth
Woven, cross, unidirectional
Woven Fabric, beautiful appearance, high shear stress between layers. The disadvantage is that the strength is low and expensive. Ordinary people have to see the pattern woven by carbon fiber, and they will think that it is carbon fiber. The smaller the K, the better the carbon fiber weaving. Most of them use 1k and 3k carbon fibers for weaving, but 1k and 3k carbon fibers are not strong and expensive.
Unidirectional fabric (Unidirection Prepreg), high strength and stability, the lamination angle can be designed, and the price is cheap. The disadvantage is that it does not appear to be carbon fiber after molding.
Cross cloth, a combination of cloth and cloth, such as unidirectional cloth and unidirectional cloth cross, or unidirectional cloth and woven cloth cross-rolled.
Post time: May-12-2022