Acoustic Microscopy Evaluation of Polypropylene/Calcium carbonate Composites

Autor:	Atsuo Shibuya, Tadae Yamanaka, Kazuta Mitsuishi, Hiroyuki Fujita
Rok vydání:	1994
Předmět:	Polypropylene chemistry.chemical_compound Void (astronomy) Calcium carbonate Materials science chemistry Agglomerate Acoustic microscopy Modulus General Medicine Particle size Composite material Elongation
Zdroj:	Sen'i Gakkaishi. 50:163-169
ISSN:	1884-2259 0037-9875
DOI:	10.2115/fiber.50.4_163
Popis:	Dispersion behavior has been characterized by acoustic microscopy method for polypropylene (PP) filled with calcium carbonate (CaCO3). The heterogeneous structure of the large size such as aggregate, agglomerate of the filled particles and presumably void at polymer-particle interface possessing modulus heterogeneity in the compounds were evaluated. Binarization method was carried out in order to obtain area fraction of the structure. The relationship between dispersion behavior and content, size and surface treatment of the filler, and the mechanical property (elongation at break) has been investigated. The heterogeneous structure was inclined to increase with the increase in CaCO3 content and the decrease in CaCO3 particle size. The heterogeneous structure in composites filled with CaCO3 of various particle sizes markedly decreased by the surface treatment of CaCO3. While, the elongation at break of PP/CaCO3 composites could roughly be expressed as a function of aggregation or agglomeration fraction calculated from ultra-sonic image.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d534aa789fff3a12361d6c03ee33bce2 https://doi.org/10.2115/fiber.50.4_163 Zobrazit plný text záznamu