Cellulose?Nanofiber?Reinforced Rubber Composites with Resorcinol Resin Prepared by Elastic Kneading

Synthesis, Characterization and Composites from Resorcinol-urea-formaldehyde-casein Resin

condensation reaction of urea, casein and formaldehyde in the presence of varying proportion of resorcinol under alkaline condition. All the prepared resins were characterized by free-formaldehyde content, free-phenol content, viscosity measurements and infrared spectroscopy (IR). The resin samples were cured isothermally at 120oC using two different curing agents, p-toluene sulphonic acid (PTS...

Firing shrinkage of porcelain-resin composites prepared by laser lithography.

Using porcelain and resin-mixed composites as experimental materials, cubic polymerized composites were prepared by the accumulation of thin slices cured by laser scanning. The composites were then fired, and bulk ceramic bodies were made. The optimal firing conditions of polymerized composites and firing shrinkage were investigated. The results showed that cubic ceramic bodies in a form homolo...

Resorcinol-Formaldehyde (R-F) Resin

Correlation of filler content and elastic properties of resin-composites.

OBJECTIVES The aim was to determine the Young's modulus (E), bulk modulus (B), shear modulus (G) and Poisson's ratio (nu) of a series of composite restorative materials and to correlate them with their filler volume-fractions. METHODS Twelve model resin-composite formulations, with systematically varied volume-fraction (Tokuyama), a flowable resin-composite (Point 4 flowable, Kerr) and two hy...

High Elastic Modulus Nanopowder Reinforced Resin Composites for Dental Applications

Title of dissertation: HIGH ELASTIC MODULUS NANOPOWDER REINFORCED RESIN COMPOSITES FOR DENTAL APPLICATIONS Yijun Wang, Doctor of Philosophy, 2007 Dissertation directed by: Associate Professor Isabel K. Lloyd Department of Material Science and Engineering Dental restorations account for more than $3 billion dollars a year on the market. Among them, all-ceramic dental crowns draw more and more at...