Effect of sodium silicate modification on selected properties of loose self-setting sands

• Autorzy: Kmita A. , Hutera B. , Drożyński D
• Języki publikacji: EN

Abstrakty

EN

The paper presents the results of the tensile tests R_m^u carried out on sands with sodium silicate, modified with SiO2, Al2O3 and ZnO in the form of aqueous colloidal solution or powder. It has been proved that the improvement of sand properties depends on: modifier type, chemical reaction of the modifier (acid-base reaction), method by which the modifier is introduced to binder, modifier content. It has been observed that among the tested modifiers, SiO2 and Al2O3 have stronger effect on the sand strength improvement than ZnO. Great degree of R_m^u improvement has been obtained by introducing to the binder either SiO2 (R_m^u improved by 30%) or Al2O3 (R_m^u improved by 50%), both in the form of powders.

Słowa kluczowe

EN

moulding sands; sodium silicate; nanocomposites

PL

masy formierskie; krzemian sodu; nanokompozyty

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2010
• Tom: Vol. 10, iss. 4
• Strony: 93--96
• Opis fizyczny: Bibliogr. 6 poz., rys., wykr.

Twórcy

autor

Kmita A.

• AGH, Faculty of Foundry Engineering, Department of Moulding Materials, Mould Technology and Foundry of Non-ferrous Metals, Reymonta 23, 30-059 Kraków, Poland

autor

Hutera B.

• AGH, Faculty of Foundry Engineering, Department of Moulding Materials, Mould Technology and Foundry of Non-ferrous Metals, Reymonta 23, 30-059 Kraków, Poland

autor

Drożyński D

• AGH, Faculty of Foundry Engineering, Department of Moulding Materials, Mould Technology and Foundry of Non-ferrous Metals, Reymonta 23, 30-059 Kraków, Poland

Bibliografia

• [1] J.L.Lewandowski: Tworzywa na formy odlewnicze. Wyd. AKAPIT. Kraków 1997.
• [2] M.Kacperski: Wstępne badania nad wpływem rodzaju modyfikatora na właściwości nanokompozytów epoksydowych. Kompozyty 4 (2004)9, str. 28-32.
• [3] Haiying Wang, Yilong Bai, Sheng Liu, Jiali Wu, C.P. Wong: Acta Materialia 50(2002), pp. 4369-4377.
• [4] B.Stypuła, J.Banaś, T.Habdank-Wojewódzki, H.Krawiec, M.Starowicz, PATENT: P-369 320 "Sposób otrzymywania mikro- i nanocząstek tlenków metali", reported: 28.07.2004, granted: 07.10.2009.
• [5] Sridhar Sadasivan, Don H. Rasmussen, Freeman P. Chen, R.K. Kannabiran: Preparation and characterization of ultrafine silica. Colloids and Surfaces 132 (1998) pp. 45-52.
• [6] M.Avella, F.Bondioli, V.Cannillo, M.E.Errico, A.M.Ferrari, B.Focher, M.Malinconico, T.Manfredini and M.Montorsi: Preparation, characterisation and computational study of poly(ε-caprolactone) based nanocomposites. Materials Science and Technology 2004 vol.20 pp.1340 – 1344.