Stabilize unreinforced PP dimensional drift by maximizing in-mold crystallization via hot tooling and extended pack, then conditioning parts prior to inspection.
Uniaxial tensile tests misrepresent multi-axial yield, physical aging, and strain-rate sensitivity in amorphous polymers, causing structural failure in real parts.
Predicting long-term tensile creep modulus drop requires combining ISO 899-1 creep data with time-temperature superposition and fiber orientation tensor modeling.
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