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Experimental study reveals distinct layer morphologies and flow-time-dependent shear layer thickness in injection-molded polyacetal, highlighting the impact of shear on crystallization.
The morphology of injection molded polyacetal was investigated using spiral-flow test mold and shear effect on crystallization phenomena is discussed. Morphology differed for skin, shear and core layers. The thickness of the shear layer was proportional to flow time.
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Mizuno et al. (1998) studied this question.
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