View Organic resins PowerPoint (PPT) presentations online in SlideServe. SlideServe has a very huge collection of Organic resins PowerPoint presentations. You can view or download Organic resins presentations for your school assignment or business presentation. Browse for the presentations on every topic that you want.
Resins. David S. Seigler Department of Plant Biology University of Illinois Urbana, Illinois 61801 USA firstname.lastname@example.org http://www.life.illinois.edu/seigler. OUTLINE: RESINS AND TURPENTINE. Importance o Turpentine o Naval stores o Adhesives o Varnishes Incense
RESTORATIVE RESINS. Also known as Tooth colored materials , used in the restoration of natural teeth. Cast gold & gold foil restorations were the earliest. Silicate cements Glass Ionomer cements Unfilled resins Composite resins Porcelain (veneers, crowns)
Thermosetting resins. John Summerscales. Thermosets - outline of lecture. phenol-formaldehyde (phenolic resin) epoxides (generally diglycidyl ethers) polyurethanes bismaleimides (BMI) unsaturated polyesters (UP or UPE) vinyl esters methacrylics
Surfboard Resins. By: Nicolas Guerrero and Ross Vedder 12/1/04 Engr. 45. History of Surfboards. Surfboards were originally made from various solid hard woods. These boards boards were strong but also very heavy. Lighter woods were used like balsa then foam was introduced. Hawaii -1890.
Epoxy Resins. Epoxy Resins. Two tubes Substance #1. diepoxy prepolymer. Substance #2. A polyamine (hardner, curing agent). The Nobel Prize in Chemistry 1987. for their development and use of molecules with structure-specific interactions of high selectivity ". Donald J. Cram.
Specialty Resins. A. Brent Strong. Vinyl Esters. Epoxy resins that have been modified so that they can be cured like a polyester The modification is usually a reaction with an acrylic ( acrylic modified epoxy )
Commodity Resins. MFG 355. Polyethylene (PE). Mer unit Polymer chain. Guilio Natta. Karl Ziegler. Polyethylene. LDPE High Pressure/High Temperature processing High “H” activation—branching HDPE Ziegler-Natta catalyst Little branching Highly crystalline LLDPE
2. Denture construction . Main use is. 3. Old materials used to construct dentures. 4. The material of choice?. Acrylic resin (polymethyl methacrylate) PMMAWhy? Desirable qualities