Studies on Morphology of Solution-Cast Films of iPP/aPP Blends

Abstract

Abstract: Morphologies of solution-cast films of iPP/aPPblends have been studied by means of electron microscopy and X-ray scattering techniques. Microscopic observation showed that solution-cast film of iPPconsists of two kinds of structural regions, cross-hatched and lath liked structures. The addition of small amount of aPP (≤300%) into iPPdid not change iPP' s characteristic crystallization behavior. It is noticed that when the content of aPPin its blend was over 80%, iPPformed a very loosely woven-like network composed of very long lameilae with wide-angle lamellar branchings. The X-ray data showed that aPPdid not cocrystallize with iPP.

Key words: Isotactic polypropyiene, Atactic polypropylene, Blends, Morphology

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CHEN Ye, YANG De-Cai . Studies on Morphology of Solution-Cast Films of iPP/aPP Blends[J]. Chem. J. Chinese Universities, 1995, 16(3): 486.

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Studies on Morphology of Solution-Cast Films of iPP/aPP Blends

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