期刊
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
卷 43, 期 10, 页码 1177-1185出版社
WILEY
DOI: 10.1002/polb.20410
关键词
blends; compatibility; fracture morphology; impact property; particle size distribution; polyamide-1010; thermoplastic poly(ester urethane) elastomer
Blends of polyamide-1010 (PA1010) and a thermoplastic poly(ester urethane) elastomer (TPU) were prepared by melt extrusion. The impact properties, phase structure, compatibility, and fracture morphology under impact were investigated for PA1010/TPU blends. The results indicated that TPU enhanced the impact strength of PA1010, and the best impact modification effect of the blends was obtained with 20 wt % TPU. The phase structure was investigated with scanning electron microscopy, and the compatibility was investigated with dynamic mechanical analysis and small-angle X-ray scattering. The study of the fracture morphology of PA1010/TPU blends indicated that the fracture surface of the blends had special features, consisting of many fibrillar elastomer particles and a conglutination-multilayer structure, as well as many small tubers on this structure. These fracture phenomena could not be found on the fracture surface of pure PA1010. (c) 2005 Wiley Periodicals, Inc.
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