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

• 作者: Zi-Li Zheng Wen-Jing Sun Xi-Xi Zhang Zhou-Yun-Tong Liu Wen-Bin Wang Meng-Han Bai Hao-Ran Yang Gan-Ji Zhong Jia-Zhuang Xu Zhong-Ming Li
• 来源期刊: 高分子科学（英文版）
• 年，卷（期）: 2022,（4）
• 所属期刊栏目: RESEARCH ARTICLES
• 页码范围: 394-402
• 页数: 9页
• 语种: 英文

摘要

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.