(1) Extensibility: Natural rubber is the best.
(2) Resilience: The best is still natural rubber.
(3) Tensile strength: Natural rubber, urethane, and polychlorinated rubber have
high tensile strength. The tensile strength of styrene–butadiene, polypropylene
rubber ester and fluorosilicone rubber is slightly worse.
O-ring
Designed O-ring groove
When not under pressure
When not under pressure
pressure
Leakage arrest status
Leakage arrest status
Squeeze out
Excessive
pressure
(a)
(b)
(c)
(d)
(e)
Pressure
When retaining ring is used
Fig. 9.3 Seal principle of O-ring
9.1 Electro-Hydraulic Servo Control Technology of Aircraft Gas Turbine Pump
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