Compared with common E glass fiber, S glass fiber has the following six characteristics: high tensile strength, high elastic modulus, good rigidity&high beak elongation , good impact resistance, good chemical stability, high temperature resistance&fatigue resistance and good radar wave .
1 Tensile strength and elastic modulus of S glass
The tensile strength and elastic modulus of S glass fiber are increased by 30%-40% and 16%-20%, respectively, than E glass fiber. Composites made of high-strength glass fibers have a strength and modulus that are nearly 50% higher than those of composites made of E glass.
2 Impact resistance
The break elongation indicates the ability of the fiber to resist impact deformation and is an important indicator of the impact resistance of the material. The elongation of the high-strength glass fiber is more than 5%. Compared with aramid fiber and carbon fiber, it has the largest deformation ability under certain stress and can fully absorb impact energy. This property determines that S glass can be used as an ideal bulletproof material.
3 fatigue resistance
The fatigue resistance of S glass fiber is 10 times higher than that of E-glass fiber. The modified characteristics determine that the composite material made of S glass has a longer working life.
4 Chemical stability characteristics
S glass has high chemical stability, and its strength retention rate after boiling, pickling and alkali washing is higher than that of E glass.
5 High temperature resistance
S glass fiber is melted at a higher temperature than E-glass fiber with a higher softening point. Usually, S glass fiber is 100-150 degrees Celsius more than E-glass fiber.
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