Incorporation of poly(Vinyl alcohol) for the improved properties of hydrothermal derived calcium phosphate cements

Razali, Nurul Nabilah and Sopyan, Lis (2018) Incorporation of poly(Vinyl alcohol) for the improved properties of hydrothermal derived calcium phosphate cements. Indonesian Journal of Chemistry, 18 (2). pp. 354-361. ISSN 1411-9420

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Abstract

Calcium phosphate cement (CPC) has been synthesized via a straightforward hydrothermal route. Calcium oxide and ammonium dihydrogen phosphate were used as calcium and phosphate precursors. The precursors were refluxed in distilled water at 90–100 °C and dried overnight until the calcium phosphate powder was formed. CPC was then produced by mixing the powder and distilled water at the powder-to-liquid (P/L) ratio of 1.5. Poly(vinyl alcohol) (PVA) of 1 to 7% (w/w) was added and its effect on physical properties was investigated. It was proved that PVA addition up to 7% (w/w) has shortened the setting time but decreased the injectability. The PVA free CPC has the initial and final setting times of 71 and 187 min, respectively and the injectability of 99.92%. The compressive strength also increased with the amount of PVA added in CPC. In addition, soaking CPC in Ringer's solution for 7, 14 and 21 days also gave remarkable effects on cohesion, microstructure and mechanical properties of the cement.

Item Type:	Article (Journal)
Additional Information:	4809/70293
Uncontrolled Keywords:	Calcium phosphate cement; Hydrothermal method; Poly(vinyl alcohol); Setting time; Injectability
Subjects:	T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General) > TA401 Materials of engineering and construction
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Depositing User:	PROF. DR. IIS SOPYAN
Date Deposited:	29 Jan 2019 12:25
Last Modified:	29 Jan 2019 14:43
URI:	http://irep.iium.edu.my/id/eprint/70293

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