| 摘要 |
PROBLEM TO BE SOLVED: To provide a high strength polyethylene fiber minimized in change in fiber properties relating to temperature change, high strength retention at room temperature suitable for various usage. SOLUTION: The fiber mainly comprises polyethylene constituent having intrinsic viscosity [μF]>=5 in fiber state, and the fiber is a high strength fiber having strength >=20 g/d, modulus of elasticity >=500 g/d, having the peak temperature <=-110 deg.C of the loss modulus of theγdispersion in the measurement of the temperature variance of the dynamic viscoelasticity of the fiber, and the loss tangent <=0.03.
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