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Vol. 27 No. 9 (2015): Vol 27 Issue 9

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Effect of Immersion in Cu(II)-Natural Zeolite on Copper Sorption and Colour Stability of Acrylic Resins

https://doi.org/10.14233/ajchem.2015.18299
D. Irnawati
Dental Biomaterials Department, Faculty of Dentistry, Universitas Gadjah Mada, Yogyakarta, Indonesia
W. Widjijono
Dental Biomaterials Department, Faculty of Dentistry, Universitas Gadjah Mada, Yogyakarta, Indonesia
K. Wijaya
Physical Chemistry Laboratory, Chemistry Department, Faculty of Math and Natural Sciences, Universitas Gadjah Mada,Yogyakarta, Indonesia
W. Asmara
Microbiology Department, Faculty of Veterinary Science, Universitas Gadjah Mada, Yogyakarta, Indonesia

Corresponding Author(s) : D. Irnawati

ninnad38@gmail.com

Asian Journal of Chemistry, Vol. 27 No. 9 (2015): Vol 27 Issue 9

Abstract

Denture cleansers ideally are bactericidal, fungicidal and harmless to denture materials. Copper(II)-zeolites showed antimicrobial activities, but its effect on denture materials is unknown. The purpose of this research was to investigate the effect of immersion in copper(II)-zeolites on copper sorption and colour stability of acrylic resins. The copper(II)-zeolites (CuZA) were made by mixing natural zeolite (ZA) with 0.1 M, 0.2 M, 0.4 M, 0.6 M and 0.8 M CuCl2 solutions at 60 °C for 1 h. Acrylic resins specimens (20 mm × 20 mm × 2 mm) were immersed in natural zeolite and copper(II)-zeolites suspension in distilled water (70 mg/mL) for 60 days. The results showed that copper amount in acrylic resins varied from not detected (ZA group) to 2.82 ± 1.03 ppm (CuZA-0.1 group) and the DE*ab (L*a*b) from 1.207 ± 0.155 (ZA group) to 1.584 ± 0.313 (distilled water group). Variation of immersing suspensions did not influence the copper sorption and colour stability of acrylic resins (p > 0.05). Sixty days immersion in Cu(II)-natural zeolites did not afffect copper sorption and colour stability of acrylic resins.

Keywords

Copper Natural zeolite Sorption Colour stability Acrylic resins
Irnawati, D., Widjijono, W., Wijaya, K., & Asmara, W. (2015). Effect of Immersion in Cu(II)-Natural Zeolite on Copper Sorption and Colour Stability of Acrylic Resins. Asian Journal of Chemistry, 27(9), 3152–3156. https://doi.org/10.14233/ajchem.2015.18299
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