Competitive interactions, structure and properties in polymer/layered silicate nanocomposites
  • Metaadatok
Tartalom: http://real.mtak.hu/61027/
Archívum: MTA Könyvtár
Gyűjtemény: Status = Published


Type = Article
Cím:
Competitive interactions, structure and properties in polymer/layered silicate nanocomposites
Létrehozó:
Hári, József
Horváth, Flóra
Móczó, János
Renner, Károly
Pukánszky, Béla
Kiadó:
BME-PT
Dátum:
2017-06-01
Téma:
T2 Technology (General) / műszaki tudományok általában
TP Chemical technology / vegyipar, vegyészeti technológia
Tartalmi leírás:
Thermoplastic polymer/layered silicate composites were prepared from the same organophilized montmorillonite
(OMMT) and four different matrices, polypropylene (PP), the blend of PP and a maleated polymer (MAPP), poly(lactic
acid) (PLA) and polyamide (PA) in order to study the effect of their chemical structure and interactions on composite structure
and properties. The components were homogenized by extrusion and then specimens were injection molded, which were
then characterized by a variety of methods. The results showed that competitive interactions among silicate layers and between
the silicate and the polymer determine the extent of exfoliation, and structure. The morphology of the composites is
complicated, exfoliation is never complete, besides individual silicate layers, the composite can contain a silicate network,
stacks of silicate platelets and larger particles in various amounts. Several local deformation processes can take place around
the structural entities as well as in the matrix. Fracture and debonding are the main particle related processes, while cavitation
takes place in the polymer, at least in PA and PLA. The macroscopic properties of layered silicate composites are determined
by the extent of exfoliation and interfacial adhesion that decreases upon organophilization. Increased reinforcement and improved
composite properties can be achieved only by the proper control of all interactions prevailing in the composite.
Nyelv:
magyar
Típus:
Article
PeerReviewed
info:eu-repo/semantics/article
Formátum:
text
Azonosító:
Hári, József and Horváth, Flóra and Móczó, János and Renner, Károly and Pukánszky, Béla (2017) Competitive interactions, structure and properties in polymer/layered silicate nanocomposites. Express Polymer Letters, 11 (6). pp. 479-492. ISSN 1788-618X
Kapcsolat:
https://doi.org/10.3144/expresspolymlett.2017.45
10.3144/expresspolymlett.2017.45