- Tytuł:
- Analysis of Structural Changes in Starch- Aluminosilicate Binder and Molding Sand with its Participation after Physical Curing
- Autorzy:
-
Kaczmarska, K.
Grabowska, B.
Cukrowicz, S.
Bobrowski, A.
Żymankowska-Kumon, S. - Powiązania:
- https://bibliotekanauki.pl/articles/382686.pdf
- Data publikacji:
- 2018
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
conventional heating
microwave curing
starch aluminosilicate binder
FTIR
hydrogen bonds
ogrzewanie konwencjonalne
utwardzanie mikrofalami
spoiwo skrobiowo-glinokrzemianowe
wiązania wodorowe - Opis:
- The organo-inorganic commercial binder Albertine F/1 (Hüttenes-Albertus) constituting the starch-aluminosilicate mixture was directed to structural studies. The paper presents a detailed structural analysis of the binder before and after exposure to physical curing agents (microwaves, high temperature) based on the results of infrared spectroscopy studies (FTIR). An analysis of structural changes taking place in the binder system with the quartz matrix was also carried out. Based on the course of the obtained IR spectra, it was found that during the exposure on physical agents there are structural changes within the hydroxyl groups in the polymeric starch chains and silanol groups derived from aluminosilicate as well as in the quartz matrix (SiO2). The curing of the molding sand takes place due to the evaporation of the solvent water and the formation of intramolecular and intermolecular cross-linking hydrogen bonds. Type and amount of hydrogen bonds presence in cured molding sand have an impact on selected properties of molding sand. Results indicates that for molding sand with Albertine F/1 during conventional heating a more extensive network of hydrogen bonds is created.
- Źródło:
-
Archives of Foundry Engineering; 2018, 18, 3; 138-143
1897-3310
2299-2944 - Pojawia się w:
- Archives of Foundry Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł