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In this study, we have investigated the effect of thermoplastic vulcanizates (TPV) content and characteristic on the double yielding of injection molded polyamide 6 (PA6)/TPV blends uniaxially tensile deformed at room temperature. The results indicated that the TPV content and characteristic showed a marked effect on the double yielding phenomenon. The morphological observation by scanning electron...
A complex double yielding behavior is observed in the engineering stress–strain curves of injection molded specimens of polyamide 6 (PA6) under tensile loading, and a simple method is put forward to judge the apparentness of the double yielding process. By thermal treatment, the effect of the crystallinity level on the double yielding behavior is studied in some detail. The results show that the second...
Double yield points before necking were observed in injection molded specimens of polyamide 6 (PA6) and PA6/glass bead (GB) composites under tensile loading. The results indicated that the unusual phenomenon was in correlation with the tensile velocity, the composition of the composites and the crystallinity of the matrix at different stages in the course of the tensile test. With higher tensile velocity,...
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