Structure, Properties and Composition of Composite Materials

This article describes the structure, properties, and composition of composite Materials.

Main ingredient and characteristics and substrate material:

  • Epoxy resin: high-quality standard;
  • Phenolic resin: fireproof;
  • BMI cyanate resin: high-temperature resistance;
  • Polyester fiber (polyester), polyethylene: low cost;
  • Thermoplastic (PEEK, PEKK): strong impact resistance.

In the aviation industry, epoxy resins are used as structural substrates or binders for composites, which are entirely transparent. As the reinforcement of carbon fiber, the single diameter is minimal. Usually, only 0.005-0.010 mm are formed by carbon atoms in a microcrystal structure.

 

In addition to carbon fiber, composite reinforcement refers to glass fiber and Kevlar (aramid fiber). Carbon fiber is black, fiberglass and Kevlar are white and yellow, respectively. The fiber reinforcement can be made into unidirectional cables and belts and spun into isotropic fabrics.

Directivity of composite materials

The fiber reinforcement can be made into unidirectional rope, band, or woven into isotropic fabric

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