Viscoelastic behavior of plasticized polyvinyl chloride at large deformations. III. The effect of filler

Autor:	Raffaele Sabia, Frederick R. Eirich
Rok vydání:	1964
Předmět:	Filler (packaging) Materials science Crazing technology industry and agriculture Plasticizer General Medicine Viscoelasticity Polyvinyl chloride chemistry.chemical_compound chemistry Stress relaxation Wetting Dewetting Composite material
Zdroj:	Journal of Polymer Science Part A: General Papers. 2:1909-1924
ISSN:	1542-6246 0449-2951
DOI:	10.1002/pol.1964.100020432
Popis:	The behavior of filled and plasticized samples is similar in many ways (such as creep, critical strain for the onset of a permanent deformation, etc.) to plasticized polyvinyl chloride. The presence of small amounts of CaCO3 as filler was found to result in improved mechanical response, while high amounts produced stiffening effects of the nature of an inert filler. At larger deformations, the polymer ceases to wet the filler and the volume of the filled resin increases with strain by crazing, the more so the more highly filled. Filler wetting by the resin is influenced by plasticizer content. In stress relaxation, the dewetting time, very short for the highly filled samples, increases appreciably with decreasing filler content while depending at the same time on plasticizer content. Because of this, equilibrium and delayed moduli increase with filler content at low strain and decrease variously at higher strain.
Databáze:	OpenAIRE
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