Lamellar Orientation in Transcrystalline γ Isotactic Polypropylene Nucleated on Aramid Fibers

摘要: γ orthorhombic isotactic polypropylene transcrystallinity nucleated on aramid fibers under high pressure was investigated by synchrotron X-ray diffraction and scanning electron microscopy. It determined that the c axes of lamellae (the growth axes) are distributed radially about fiber lamellar ab face is randomly oriented surface. This finding consistent with apparent absence an epitaxial relationship between crystal structure surface Kevlar lattice iPP crystals.