Publication detail

Layered calcium phenylphosphonate: a hybrid material for a new generation of nanofillers

Year: 2018

Type of publication: článek v odborném periodiku

Name of source: Beilstein Journal of Nanotechnology

Publisher name: Beilstein-Institut

Place: Frankfurt am Main

Page from-to: 2906-2915

Titles:

Language	Name	Abstract	Keywords
cze	Vrstevnatý fenylfosfonát vápenatý : hybridní materiál pro novou generaci nanoplniv.	V práci byla zkoumána možnost využití nanolamel připravených exfoliací z fenylfosfonátu vápenatého jako plniva do polymerní matrice. Vrstevnatý fenylfosfonát vápenatý je hybridní organicko-anorganický materiál, který díky přítomností fenylových skupin na povrchu jenotlivých lamel vykazuje hydrofobní charakter. V práci je popsána syntéza materiálu, jeho charakterizace i exfoliace v kapalném médiu. Využití jako plniva bylo zkoumáno pro epoxidovou matrici na bázi bisfenolu-A.	exfoliace; vrstevnatý fenylfosfonát; nanomateriál
eng	Layered calcium phenylphosphonate: a hybrid material for a new generation of nanofillers	The use of nanosheets of layered calcium phenylphosphonate as a filler in a polymeric matrix was investigated. Layered calcium phenylphosphonate (CaPhP), with chemical formula CaC6H5PO3.2H(2)O, is a hybrid organic-inorganic material that exhibits a hydrophobic character due to the presence of phenyl groups on the surface of the layers. In this paper, various CaPhP synthesis methods were studied with the aim of obtaining a product most suitable for its subsequent exfoliation. The liquid-based approach was used for the exfoliation. It was found that the most promising technique for the exfoliation of CaPhP in an amount sufficient for incorporation into polymers involved using propan-2-ol with a strong shear force generated in a high-shear disperser. The filler was tested both in its unexfoliated and exfoliated forms for the preparation of polymer composites, for which a low molecular weight epoxy resin based on bisphenol A was used as a polymer matrix. The prepared samples were characterized by powder X-ray diffraction, atomic force microscopy, optical and scanning electron microscopy, and dynamic mechanical analysis. Flammability and gas permeation tests were also performed. The addition of the nanofiller was found to influence the composite properties - the exfoliated particles were found to have a higher impact on the properties of the prepared composites than the unexfoliated particles of the same loading	exfoliation; layered phenylphosphonate; nanomaterial; nanofiller; polymer filler

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