Results 221 to 230 of about 8,189 (252)

Influence of talc on the properties of polycarboxylate cement

Journal of Oral Rehabilitation, 1997
summary Zinc oxide, the inorganic component of polycarboxylate cement, was mixed with talc in various proportions from 10% to 50%. These powder mixtures were spatulated with poly(acrylic acid) in three powder to liquid (P/L) ratios of 1:1, 1‐5:1 and 2:1 (w/w).
R K, Bansal, U S, Tewari, P, Singh, D V, Murthy   +3 more
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Bond strength of polycarboxylic acid cements to treated dentine

Dental Materials, 1985
Abstract The effect of some dentine surface pretreatments proposed in the literature to enhance the bond strengths of one or more polycarboxylic acid cements, has been examined. Few of these pretreatments have been independently investigated. The bond strengths of two polycarboxylic acid cements, one of which contained SnF2, and a glass-ionomer ...
D R, Beech, A, Solomon, R, Bernier
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The nature of the zinc polycarboxylate cement matrix

Journal of Biomedical Materials Research, 1982
AbstractThe matrix of a stoichiometric zinc polycarboxylate cement has been shown to be identical with zinc polycarboxylate salt, which consists principally of neutralized carboxylate groups with a few free acid groups. When excess zinc oxide is present, as in practical cements, there are no free acid groups present.
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Influence of cryolite on the properties of polycarboxylate cement

The Journal of Prosthetic Dentistry, 1995
Zinc oxide, the inorganic component of polycarboxylate cement, was mixed with the filler cryolite (Na3A1F6) in various proportions that ranged from 10% to 50%. These powder combinations were mixed with polyacrylic acid in three powder-to-liquid ratios of 1:1, 1.5:1, and 2:1 (w/w).
R K, Bansal, U S, Tewari, P, Singh, D V, Murthy   +3 more
openaire   +2 more sources

Polycarboxylate Polymers and Blends in Different Cements

Cement, Concrete, and Aggregates, 2004
Abstract During the last few years, polycarboxylate based polymers have become very popular. They contain a polycarboxylic backbone onto which ethyleneoxide side chains have been grafted. However its dispersing and slump keeping properties vary significantly, depending on the chemical structure.
U Mäder, I Schober, F Wombacher, D Ludirdja   +3 more
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Compatibility of polycarboxylate superplasticizers with cements

2006
Superplasticizers are nowadays often used for ready-mix concrete, but also for other purposes in concrete technology. In most cases, without adding a superplasticizer to concrete, it is not possible to achieve the desired properties of fresh and hardened concrete. Properties of fresh concrete, such as slump, slump loss with time, segregation, bleeding,
Štirmer, Nina, Banjad Pečur, Ivana
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Physical Properties of Some Zinc Phosphate and Polycarboxylate Cements

Acta Odontologica Scandinavica, 1983
Several physical properties were measured for two zinc phosphate and three polycarboxylate cements. The specimens were tested in compression 24 h after they had been made. Two series of specimens were examined. In one series the cement powders were given a correct treatment, protected from atmospheric humidity.
R, Branco, T, Hegdahl
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Dielectric Properties of Polycarboxylate Cements

Journal of Dental Research, 1975
M, Braden, R L, Clarke
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An anhydrous zinc polycarboxylate cement

British Dental Journal, 1983
P J, Knibbs, C G, Plant, D S, Shovelton
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Some polycarboxylate cements. Thermal analytical studies

British Dental Journal, 1976
J B, Moser, J M, Broadbent, E C, Combe, E H, Greener   +3 more
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