The Relationship between Structure and Properties of β-Phase Isotactic Polypropylene

Abstract:

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In this paper, β-phase isotactic polypropylene (β-iPP) was prepared with two different β nucleating agents (NT-A and NT-D). The melting and crystallization behavior, crystal morphology and mechanical properties of β-iPP were studied by means of DSC, WAXD, PLM and mechanical tests. It is found that the spherulites become smaller, and tensile strength, tensile strain at break and notched impact strength increase for the nucleated iPP. NT-D is more efficient than NT-A. The notched impact strength is three times greater than that of pure iPP for the samples nucleated by NT-D. The injection molded specimens have obvious skin-core structures.

Info:

Periodical:

Advanced Materials Research (Volumes 233-235)

Edited by:

Zhong Cao, Lixian Sun, Xueqiang Cao, Yinghe He

Pages:

2129-2137

DOI:

10.4028/www.scientific.net/AMR.233-235.2129

Citation:

Y. H. Shi and Q. Dou, "The Relationship between Structure and Properties of β-Phase Isotactic Polypropylene", Advanced Materials Research, Vols. 233-235, pp. 2129-2137, 2011

Online since:

May 2011

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Price:

$35.00

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