Influence of cryolite on the properties of polycarboxylate cement.
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). The physical properties of the resulting cements such as setting time and compressive and diametral tensile strengths were determined. It was observed that the setting time increased with an increase in cryolite content. The compressive and diametral tensile strengths also increased by twofold with a concentration of 20% cryolite.
Bansal
R K
RK
Department of Chemistry, Indian Institute of Technology, New Delhi.
Tewari
U S
US
Singh
P
P
Murthy
D V
DV
D000180:Acrylic Resins / Q000737:chemistry; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D008422:Materials Testing; D011076:Polycarboxylate Cement / Q000032:analysis / Q000737:chemistry*; D011208:Powders; D012969:Sodium Fluoride / Q000032:analysis / Q000737:chemistry*; D013314:Stress, Mechanical; D013718:Tensile Strength; D013997:Time Factors; D015034:Zinc Oxide / Q000737:chemistry
D000180:Acrylic Resins; D011076:Polycarboxylate Cement; D011208:Powders; C006903:carbopol 940; C007157:cryolite; D012969:Sodium Fluoride; D015034:Zinc Oxide