In-vitro testing of solubility of thermal insulation fibers

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F20%3A43920855" target="_blank" >RIV/60461373:22310/20:43920855 - isvavai.cz</a>

Result on the web

<a href="https://www.ceramics-silikaty.cz/index.php?page=cs_detail_doi&id=1328" target="_blank" >https://www.ceramics-silikaty.cz/index.php?page=cs_detail_doi&id=1328</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.13168/cs.2020.0018" target="_blank" >10.13168/cs.2020.0018</a>

Result language

angličtina

Original language name

In-vitro testing of solubility of thermal insulation fibers

Original language description

This recent work presents the results of dissolution of glass fibers in corrosion medium. The main objective of this research was to obtain the information about long-term dissolution of three types commercially produced glass fibers (E-fibers, fibers Promaglaf HTI 1200 and Promaglaf HTI 1250), which are commonly used as thermal insulation. The long-term dissolution of fibers was investigated at the temperature of 37°C by dynamic flow-through tests in simulated lung fluid (SLF). The flow rate of SLF was 120 ml/day. In solutions, the pH values and changes in weight loss of fibers were measured and changes in corrosion medium were evaluated by AAS. Also the values of the time dependence of the normalized leach amount of glass components (NLi) were computed and were compared with the data of NLi obtained from kinetic model of UCT Prague. The changes in appearance and composition of the fibers were evaluated with SEM-EDS techniques. This research confirmed that all fibers were dissolving in SLF, but each type differently. E-fibers dissolved nearly congruently, compared to fibers Promaglaf HTI 1200 and 1250 which were less soluble than E-fibers and dissolved incongruently. That was caused by production of precipitates - calcium phosphorous and silica layers.

Czech name

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Czech description

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Type

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

CEP classification

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OECD FORD branch

20504 - Ceramics

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

Confidentiality

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

Name of the periodical

Ceramics-Silikáty

ISSN

0862-5468

e-ISSN

—

Volume of the periodical

64

Issue of the periodical within the volume

3

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

10

Pages from-to

289-298

UT code for WoS article

000567987200006

EID of the result in the Scopus database

2-s2.0-85090821830