Product miniaturization and high shear/cooling rates during microinjection molding increase the volume of the highly oriented skin layer, thereby modifying the mechanical properties of the fabricated product.
A microscale multilayered structure of alternating foam and film layers, prepared using microlayer co-extrusion technology, results in a well-ordered multilayered structure, leading to enhanced sound absorption.
A short-term test method to evaluate the performance of polyethylene pipes enables the effect of prior deformation on the tangent modulus to be measured and may prove useful for in-service monitoring.2
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