Interfacial Banded Transcrystallization of Polyoxymethylene/Poly(butylene succinate) Blends Induced by the Polyamide 6 Fiber

Interfacial crystallization of polyoxymethylene/poly(butylene succinate) blends induced by the polyamide 6 (PA6) fiber was investigated. Due to strong heterogeneous nucleating ability, dense nuclei were generated on the surface of the PA6 fiber, which compelled the growth of twisted lamellae perpendicular to the PA6 fiber. As a result, unique interfacial banded transcrystallization was formed, which is rarely found before. Crystallization temperature was dominant in determining the nucleation activity of the PA6 fiber, further affecting the architecture of banded transcrystallization. With the increase of crystallization temperature, the nucleation density decreased to give more growth space for the twisted lamellae around the fiber. The wave-like banded stripes were transformed into fan-like stripes. Accordingly, band spacing and eccentricity respectively showed positive and negative correlation with crystallization temperature. These meaningful results shed light on regulating the architecture of banded crystals in polymer composites.

Automated summary

The interfacial crystallization of polyoxymethylene/poly(butylene succinate) blends induced by polyamide 6 (PA6) fiber was investigated. The PA6 fiber exhibited strong heterogeneous nucleating ability, generating dense nuclei on its surface and compelling the growth of twisted lamellae perpendicular to the fiber. This resulted in the formation of unique interfacial banded transcrystallization. The nucleation density and architecture of the banded transcrystallization were influenced by the crystallization temperature, with higher temperatures leading to decreased nucleation density and transformed stripe patterns.