Peculiarities of mechanical behavior of films of polyurethane-silica nanocomposites formed by the parallel synthesis method

Title:

Peculiarities of mechanical behavior of films of polyurethane-silica nanocomposites formed by the parallel synthesis method

Creator:

Gofman, Josif V. and Abalov, Ivan V.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:479bacb9-641b-41b9-b14c-61727dd3854d
uuid:479bacb9-641b-41b9-b14c-61727dd3854d
issn:1214-9705

Subject:

Geologie. Meteorologie. Klimatologie, nanokompozitní materiály, mechanické vlastnosti materiálů, nanocomposites, mechanical properties of materials, nanocomposite films, parallel synthesis, thermal stability, free volume, 7, and 551

Type:

article, články, model:article, and TEXT

Format:

print, bez média, and svazek

Description:

Films of aliphatic polyurethane-silica nanocomposite containing up to 27.3 mol. % of silica were obtained by the parallel synthesis of both composite components in one common process. This method permits to obtain the nanocomposite materials with the uniform distribution of nanoparticles in the polymer matrix volume. The rise of the silica concentration in the nanocomposite film was shown to lead from one hand to the progressive fall of both the Young’s modulus and yield stress and from another hand to the rise of the ultimate deformation and thermal expansion coefficient values. These effects were ascribed to the formation of the excessive free volume in the material along with the raise of silica concentration., Josif V. Gofman and Ivan V. Abalov., and Obsahuje bibliografii

Language:

English

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Source:

Acta geodynamica et geomaterialia : | 2009 Volume:6 | Number:2 (154)

Harvested from:

CDK

Metadata only:

false