Do Aramid VS Carbon Fibers Have an Impact on Electronic Products?

Understanding aramid vs carbon fiber

Carbon fiber is a new high-performance material that is obtained by high-temperature carbonization and pre-oxidation of polyacrylonitrile, and has a carbon content of up to 90%. Carbon fiber not only has the inherent properties of carbon elements, but also has the flexibility and processability of carbon fiber. Aramid fiber is obtained by polymerization spinning using aromatic compounds as raw materials. It has high strength, good impact resistance and fatigue resistance. Both are representatives of new materials.

Aramid vs carbon fiber resin is a lightweight, high-strength, corrosion-resistant, high-temperature-resistant, impact-resistant material. Carbon fibers have good conductivity, while aramid fibers have good insulation. Carbon fiber materials have high strength and brittleness. After serious external impact and fragmentation, the entire carbon fiber product must be replaced, while aramid fiber belongs to plastic materials and can be repaired after impact damage.

The impact of aramid vs carbon fiber on electronic products

As we can see, the use of aramid vs carbon fiber has become widespread in many electronic products. So what is their impact on electronic products? Let's look at them according to their properties.

• Tensile strength: Tensile strength is the maximum stress that a material can withstand before it is pulled apart before it breaks. Some non-brittle materials will deform before fracture, but aramid fibers and carbon fibers are very brittle, so they will fracture instead of deforming.

• Conductivity: Aramid fibers are good insulators, with a dielectric strength of up to 20kv/mm. Carbon fiber has good conductivity. This is why carbon fiber is not suitable as a mobile phone case material. Carbon fiber's conductivity can absorb, reflect, or even cancel out electromagnetic waves emitted by mobile phones, and a carbon fiber phone case can reduce mobile phone signal strength by an average of 40% to 60%. Therefore, aramid fiber (Kevlar) shells will not interfere with mobile phone signals, but carbon fiber shells will. So when choosing a mobile phone case, be sure to choose aramid fiber, not carbon fiber!
  

How to choose aramid vs carbon fiber?

If product strength requirements are high, then the stronger the aramid fiber, the better. But if the product's rigidity requirements are high, then carbon fiber is the better choice. In the field of mobile phone cases, carbon fiber is a conductive material that greatly affects mobile phone signals. Aramid fiber applications will be a better protective shell material. If the phone case cannot be made, the conductivity of carbon fiber can be used on anti-skimming card wallets. It has a rare advantage: it has RFID (radio frequency identification) function, shields skimming scanning rays, protects personal privacy from disclosure, and ensures credit card security.