N,N′-dicyclohexyl-2,6-naphthalenedicarboxamide, a commercial nucleating agent, can dissolve into molten polypropylene (PP) and self-organize into needle-like crystals when the melt temperature reaches 260°C. As temperature decreases, PP molecules crystallize on the surface of the needle-like crystals with their c-axis perpendicular to the long axis of the crystal. Under a flow field in injection molding, PP chains are parallel or perpendicular to the flow direction at different depths owing to the difference in crystallization kinetics and applied shear rate in the melt, forming a plywood-like material. This unique structure can simultaneously improve the toughness and strength of plastic parts. Herein, we present a novel method of producing high-performance plastic articles based on general plastics by manipulating their morphology and structure.

中文翻译：

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注射成型聚丙烯的胶合板状结构

N,N'-二环己基-2,6-萘二甲酰胺是一种商业成核剂，当熔体温度达到260°C时，它可以溶解在熔融聚丙烯（PP）中并自组织成针状晶体。随着温度的降低，PP分子在针状晶体的表面结晶，其c轴垂直于晶体的长轴。在注塑流场下，由于结晶动力学和熔体中施加的剪切速率不同，PP链在不同深度平行或垂直于流动方向，形成类似胶合板的材料。这种独特的结构可以同时提高塑件的韧性和强度。在此，我们提出了一种通过操纵形态和结构来生产基于普通塑料的高性能塑料制品的新方法。