Organic-inorganic composites based on magnesium phosphate cement and acrylic latexes: Role of functional groups

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F23%3A00561894" target="_blank" >RIV/68378297:_____/23:00561894 - isvavai.cz</a>

Alternative codes found

RIV/00216275:25310/23:39920627

Result on the web

<a href="https://doi.org/10.1016/j.ceramint.2022.09.338" target="_blank" >https://doi.org/10.1016/j.ceramint.2022.09.338</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ceramint.2022.09.338" target="_blank" >10.1016/j.ceramint.2022.09.338</a>

Result language

angličtina

Original language name

Organic-inorganic composites based on magnesium phosphate cement and acrylic latexes: Role of functional groups

Original language description

The role of carboxyl functional groups in acrylic latex employed to fabricate an organic-inorganic composite material based on magnesium phosphate cement has been investigated. The acidic nature of the latex aqueous medium enhanced the dissolution of the magnesium oxide in the first stages of the cement reaction. The following increase in pH promoted the deprotonation of the carboxyl groups, which became involved in surface adsorption effects. Adsorption processes were found to control the nucleation and growth of the reaction products. The resulting overall hindering effect slowed down the reaction rates and delayed the precipitation of the solid phosphates with beneficial consequences, namely, the retardation of setting time and the modulation of the heat released. Modification in the morphology of the formed crystals, with the prevalence of platelet-like over prismatic habit, along with a decrease in their average size, was obtained. The crystals formed in higher amounts with respect to the neat cement because the reaction proceeds closer to equilibrium. The obtained microstructure is strengthened because of a more effective intermingling between crystals and the amorphous phase. Furthermore, the synergistic combination of polymer and phosphate cement improved the elastic properties, andnreduced the water absorption, impacting positively on the durability of the composite.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20501 - Materials engineering

Project

<a href="/en/project/GA20-01280S" target="_blank" >GA20-01280S: Rate control and morphosynthesis in magnesium phosphate cements: role of additives</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Ceramics International

ISSN

0272-8842

e-ISSN

1873-3956

Volume of the periodical

49

Issue of the periodical within the volume

3

Country of publishing house

GB - UNITED KINGDOM

Number of pages

8

Pages from-to

4523-4530

UT code for WoS article

000907042000001

EID of the result in the Scopus database

2-s2.0-85139313682