Fiber-type materials are common and easy-to-use materials, among which carbon fiber and Kevlar are fiber materials with good reputation and excellent performance. But many people easily confuse or even misunderstand Kevlar and carbon fiber. Today we will talk about the differences between them in detail.
What is carbon fiber material?
Carbon fiber is a material composed of extremely fine carbon elements. The entire element is carbon atoms, and each carbon atom is combined with each other in the form of graphite crystallization to form a fiber tow. After a series of high-temperature oxidation, graphitization, etc. A carbon fiber tow material is obtained after processing. The tensile strength of carbon fiber can reach 3500MPa, which is much greater than that of Kevlar. Due to the huge tensile strength of carbon fiber materials, corrosion resistance, high temperature resistance, and light weight, they are usually used in the aerospace field.
What is Kevlar material?
Kevlar is a synthetic fiber that has become popular in recent years. It is a synthetic fiber launched by DuPont of the United States. It is very light (density about 1440kg/m3), which is 1/5 of steel. But its strength is very high, the tensile strength can reach 2000MPa, which is about 5 times that of steel. Also known as Kevlar, it has very good tensile strength, toughness and flexibility. The overall firmness is very good, the strength is also very high, and it is not easy to break, so it is mostly used in bulletproof products.
Performance comparison of carbon fiber and Kevlar
Carbon fiber materials are more environmentally friendly.Carbon fiber materials do not contain nitrogen atoms, have less impact on the environment, and have higher overall performance and strength. Therefore, they have been very well recognized in many high-performance industries, especially in aerospace and rail transportation. , the automotive field, and industrial equipment.
The advantage of Kevlar is that it is light, strong and comfortable. The tensile strength of Kevlar fiber is very close to that of carbon fiber. Kevlar is known for its heat-resistant properties, making it ideal for high-temperature environments.
The difference between carbon fiber and Kevlar application
In practical applications, Kevlar is mainly used for protective clothing and bulletproof products; carbon fiber is mostly used in shipbuilding and aerospace manufacturing.
The choice of these two materials depends on the demand for product performance and cost. If the product is lightweight, choose carbon fiber; if the product needs bulletproof and breakage resistance, choose Kevlar.