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Polystyrene (PS) microfibers with high molecular orientation and helical alignment were in situ formed via helical convergent flow during polybutene-1 (PB-1) tubing processing to achieve performance improvements in both axial and hoop directions, which opened up an economical pathway for continuous fabrication of biaxially reinforced polyolefin tubes for medical application.
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Liu et al. (2014) studied this question.
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