Strengthening of Polypropylene Strips by Orientational Stretching in Liquids

Pinchuk, L. S.; Goldade, V. A.; Vinidiktova, N. S.; Choi, Ung-su; Hong, Shin-Ki

doi:10.1007/s11029-005-0044-6

Cited by 4 publications

(1 citation statement)

References 2 publications

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“…The quality of the crystalline lamellae in the close proximity to the nanofiber surface was changed. This was related to an increase in crystallinity, as the spacing between the lamellae was reduced near the nanofiber . It was shown that transcrystallization in PP depended on the surface structure of carbon fibers—only high‐modulus carbon fibers induced such transcrystallinity …”

Section: Introductionmentioning

confidence: 99%

Structural aspects of mechanical properties of iPP‐based composites. I. Composite iPP fibers with VGCF nanofiller

Иванькова

Kasatkin

Moskalyuk

et al. 2015

J of Applied Polymer Sci

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Nanocomposite fibers consisting of isotactic polypropylene (iPP) as a matrix filled with vapor grown carbon nanofibers (VGCF) have been prepared and their fine crystalline structure and mechanical properties characterized. The obtained results point out that the VGCF oriented along the fiber extrusion direction induce crystallization in the surrounding iPP matrix in a special way leading to the formation of oriented iPP a-transcrystallite layers. The VGCF content and the draw ratio (DR) affect the textural properties of the composite material and lead to the formation of an anisotropic structure. The improvements of the mechanical properties of the composite fibers in both undrawn and drawn states are attributed to the VGCF aligning effect during extrusion, which produces highly oriented iPP crystalline structure, rather than to the reinforcing effect of the nanofibers. A new detailed scheme explaining the changes in tensile strength from the structural point of view is proposed.

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Section: Introductionmentioning

confidence: 99%