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Formation Mechanism Of Hybrid Shish Kebab And Its Reinforcing Effects On Polypropylene

Xinyu Wen, Y. Li, Min Nie, Q. Wang, Xiaofei Zhang
Published 2016 · Materials Science

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ABSTRACT This paper presented a simple and facile method to prepare high-performance polypropylene sheet through hybrid shish kebab crystals. The experimental results showed that fibrous rare earth nucleating agent (WBG) was a kind of rigid particle with properties of easier alignment along flow and more stability when compared with oriented molecule, so during the processing of WBG-modified polypropylene samples, WBG fibrils acted as “shish” to direct the oriented crystallization of coiled polymer chains perpendicular to the fibril, into hybrid shish kebab with reinforcement function. As a result, the tensile and yield strengths of WBG-modified polypropylene sheets were improved significantly. GRAPHICAL ABSTRACT
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