EFFECT OF FILLER TREATMENT ON THE RHEOLOGICAL AND MECHANICAL PROPERTIES OF POLYETHYLENE COMPOSITES

Autor:	Tariq M. Malik, Pierre G. Lafleur, Pierre J. Carreau, Bohuslav Fisa
Rok vydání:	1991
Předmět:	Materials science General Chemical Engineering Young's modulus General Chemistry Carbon black Polyethylene Silane chemistry.chemical_compound symbols.namesake chemistry Ultimate tensile strength symbols High-density polyethylene Mica Composite material Glass transition
Zdroj:	Chemical Engineering Communications. 105:11-25
ISSN:	1563-5201 0098-6445
DOI:	10.1080/00986449108911514
Popis:	Mechanical and Theological properties of a high density polyethylene (HDPE) filled with mica flakes, rutile and carbon black are investigated. Experimental results show that the Young modulus and the tensile strength of mica and rutile-HDPE composites are significantly enhanced by surface treatment of fillers with silane and titanate coupling agents. Surface treatments are shown to reduce the peak of the loss tangent (tan δ) and slightly increase the glass transition temperature (T g). This is an indication of improved adhesion at the filler-matrix interface. The carbon black composites, however, hardly show any improvement by these treatments. The Theological properties are also effected by surface treatments, particularly at low shear rates. The low-shear rate viscosities (η O) and characteristic time (λ 0) of these systems are determined and compared. It is found that η 0 and λ 0 of carbon black composites are much higher than those of mica composites. This is probably due to the poor dispersi...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::51d81fc278b47987a0122f3d4181e665 https://doi.org/10.1080/00986449108911514 Zobrazit plný text záznamu