Szczegóły publikacji
Opis bibliograficzny
Thermal analysis in foundry technology. Pt. 1, Study TG-DSC of the new class of polymer binders BioCo / Beata GRABOWsKA, Paweł MALINOWSKI, Michał SZUCKI, Łukasz Byczyński // Journal of Thermal Analysis and Calorimetry ; ISSN 1388-6150. — Tytuł poprz.: Journal of Thermal Analysis ; ISSN: 0368-4466. — 2016 — vol. 126 iss. 1, s. 245–250. — Bibliogr. s. 249–250, Abstr. — Publikacja dostępna online od: 2016-04-18
Autorzy (4)
- AGHGrabowska Beata
- AGHMalinowski Paweł
- AGHSzucki Michał
- Byczyński Łukasz
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 100005 |
|---|---|
| Data dodania do BaDAP | 2016-10-07 |
| Tekst źródłowy | URL |
| DOI | 10.1007/s10973-016-5435-5 |
| Rok publikacji | 2016 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Journal of Thermal Analysis and Calorimetry |
Abstract
TG–DSC thermal analysis involved two new BioCo foundry binders in the form of a composition with poly(acrylic acid) and modified polysaccharides (dextrin, sodium salt of carboxymethyl starch). Thermal analysis was conducted to determine the effect of the thermal decomposition conditions and polymer structure on the progress of degradation in terms of processes occurring in the foundry sands, when they contact with liquid metal. Thermal analysis of the composition allowed for determining the temperature range where they do not undergo degradation, by which they do not lose their binding properties. It was evidenced that the course of thermal decomposition is complex (mixed degradation mechanism). With temperature increase, physical and chemical changes occur, related to evaporation of solvent water (20–100 °C) and next release of constitution water, while finally intermolecular dehydration (100–220 °C). In this temperature range, mainly reversible processes take place. Within the temperature range of 220–300 °C, polymer chains decompose, including decomposition of side chains and glycosidic bonds. Within the temperature range of 300–500 °C, polymer compositions decompose, and gas products of destruction are generated. A part of the compound that did not decompose at the temperature of approx 550 °C can contain carbonised coal. It was evidenced that if the composition includes sodium atoms, inorganic compounds are formed which decompose at the temperature of approx 800 °C.
