Citation: SHI Guanyi, CAO Youhong, ZHANG Xiaodong, HONG Jie, HUA Xiaogang. MULTIPLE MELTING BEHAVIOR OF β-CRYSTALLINE PHASE POLYPROPYLENE[J]. Chinese Journal of Polymer Science, ;1992, 10(4): 319-327. shu

MULTIPLE MELTING BEHAVIOR OF β-CRYSTALLINE PHASE POLYPROPYLENE

Received Date: 6 September 1991

Differential scanning calorimetry and X-ray diffraction experiments on β-nucleated polypropylene were made on the samples crystallized at different temperatures and processed by injection molding. The crystal perfection was shown to vary with crystallization temperature. The observed multiple peaks could be related to a ill-phase with defective inclination of the chains, a recrystallized or original β2-phase of more perfect inclination, and the α-phase. Injection molded samples could be analyzed from the established DSC interpretation.
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