Super code: Fiber wire made with "Kevlar"

basic information

**Material Properties Comparison** The elongation at break of Kevlar is very small compared to organic fibers such as nylon and polyester, particularly "Kevlar 49," which is 2.4%. The density of both "Kevlar 29" and "Kevlar 49" is about 3/5 that of E-glass and about 1/5 that of steel wire. **High Strength** We compared the tensile strength of "Kevlar" with other materials in both the raw fiber and resin-impregnated states. In the raw fiber state, it has a high level of 300 kg/mm². This value is about 1.4 times that of steel wire, about 3 times that of nylon, and about 2.5 times that of polyester. Additionally, in the resin-impregnated state, "Kevlar 49" shows higher values compared to E-glass and carbon fiber. **High Elastic Modulus** Even when comparing the tensile elastic modulus per mm², the material properties of "Kevlar" are extremely excellent. The larger the value, the less deformation occurs in the tensile direction. **Thermal Stability** "Kevlar" is very stable against temperature changes and can maintain its properties at a significant level up to 160°C. Furthermore, there is almost no fiber shrinkage even at high temperatures. Additionally, "Kevlar" does not melt, has self-extinguishing properties, and carbonizes at around 500°C.

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