Abstract
Surface induced crystallization of a high density polyethylene matrix on a gel spun, ultra-high modulus polyethylene fiber has been investigated both qualitatively and quantitatively. Under the microscope, the fiber exhibits a very good nucleation ability as seen from a uniform transcrystalline zone. The free energy difference function Δσ, as it appears in the classical nucleation theory, is also calculated. Because of the very high nucleation rate which prevents the direct observation of individual spherulites at the interface, a new approach based on induction time is used to obtain an estimate of the free energy difference function ea which is calculated to be Δσ = 0.32 erg/cm2. This very low value may be explained considering the similar lattice parameters and surface energy of this polymer/substrate system. Crystallization by melt epitaxy rather than transcrystallization may be observed.
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© 1990 Elsevier Science Publishing Co., Inc.
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Ishida, H., Bussi, P. (1990). Surface Induced Crystallization in Ultra-High Modulus Polyethylene Fiber Reinforced Polyethylene Composite. In: Ishida, H. (eds) Controlled Interphases in Composite Materials. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-7816-7_37
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DOI: https://doi.org/10.1007/978-94-011-7816-7_37
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-011-7818-1
Online ISBN: 978-94-011-7816-7
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