Abstract
A mass of stretched molecular chains in the entire thickness direction of gas‐assisted injection molding (GAIM) composites is induced due to the redistribution and amplification of the shear flow caused by the introduction of polycarbonate (PC) microfibril under intense shear stress. In the vicinity of the PC microfibrils, stretched chains are either absorbed by PC microfibrils with a large diameter to form a transcrystallinity, or captured by ultrafine PC microfibrils to firstly form shish nuclei and finally form hybrid shish‐kebab structures. Typical shish‐kebab superstructures are formed in the zone with the absence of PC microfibrils. In summary, multiform crystalline superstructures across the thickness direction are successfully obtained by the GAIM. Thus, this work can open a new way for the preparation of high‐performance polymer composites in industrial processing. image
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