Polyethylene powder and molded article

A polyethylene powder satisfying the following requirement 1 and requirement 2:

• requirement 1:
• an intrinsic viscosity (IV) measured in accordance with IS01628-3 (2010) is 1.5 dL/g or more and 34.0 dL/g or less, and
• requirement 2:
• a ratio γ0/γ1 of an elastic limit strain γ0 at a swelling time t (h) of 0 hours to an elastic limit strain γ1 at a swelling time t (h) of 1 hour is 0.80 or more and 0.95 or less, wherein the ratio is obtained from a strain dependence test for dynamic viscoelasticity under the following Conditions for measurement of viscoelasticity of slurry and the swelling time t (h) is as defined below:
• Conditions for measurement of viscoelasticity of slurry
• Measurement apparatus:
• MARSIII manufactured by Thermo Fisher Scientific, Inc.
• Stage:
• 20 mmφ
• Plate:
• 20 mmφ parallel plate
• Gap:
• 0.5 mm
• Slurry composition:
• 30 parts by mass of the polyethylene powder and 70 parts by mass of liquid paraffin
• Conditions for measurement:
• the strain dependence test is conducted by the following steps 1 and 2:
• step 1 of keeping a temperature of a slurry at 100° C. for the swelling time t (h) in a nitrogen atmosphere on a sample stage;
• and
• step 2 of conducting the strain dependence test under conditions of 180° C. and a frequency of 1 Hz in a nitrogen atmosphere,
• Determination of elastic limit strain:
• an elastic limit strain γt is determined by a two-tangent method.