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.

Identyfikatory

DOI

10.24425/123616

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

conventional heating; microwave curing; starch aluminosilicate binder; FTIR; hydrogen bonds

PL

ogrzewanie konwencjonalne; utwardzanie mikrofalami; spoiwo skrobiowo-glinokrzemianowe; FTIR; wiązania wodorowe

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2018
• Tom: Vol. 18, iss. 3
• Strony: 138--143
• Opis fizyczny: Bibliogr. 36 poz., tab., wykr.

Twórcy

autor

Kaczmarska K.

• AGH University of Science and Technology, Faculty of Foundry Engineering, Krakow, Poland

autor

Grabowska B.

• AGH University of Science and Technology, Faculty of Foundry Engineering, Krakow, Poland

autor

Cukrowicz S.

• AGH University of Science and Technology, Faculty of Foundry Engineering, Krakow, Poland

autor

Bobrowski A.

• AGH University of Science and Technology, Faculty of Foundry Engineering, Krakow, Poland

autor

Żymankowska-Kumon S.

• AGH University of Science and Technology, Faculty of Foundry Engineering, Krakow, Poland

Bibliografia

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).