Chinese name: Denture powder
English Name: Poly(methyl methacrylate)
CAS: 9011-14-7
Molecular formula: C15H24O6X2
Molecular weight: 300.35
Appearance: good physical properties, static bending impact strength and other good physical properties, with room temperature self-coagulation characteristics.
Melting point: 150 °C
Boiling point: 108 °C
Density: 1.188 g/mL at 25 °C
Refractive index: n20/D 1.49
Flash point: 250 °C
Storage conditions: 2-8°C
Solubility: alcohols and aliphatic hydrocarbons: insoluble
Form: powder
Specific gravity: 1.188
Color: White
Water solubility: Soluble in tetrahydrofuran, toluene, cyclohexanone, ethyl acetate and chloroform. Insoluble in water, alcohols and aliphatic hydrocarbons.
Use 1
Manufacturing printing plates, light curing coatings, adhesives, inks.
Preparation method
Method 1
1.? The granular resin produced by floating polymerization or solution-bulk polymerization is called polymethyl methacrylate molding plastics or plexiglass molding plastics. The resin emulsion prepared by emulsion polymerization is generally a copolymer, and methyl methacrylate is used as a hard monomer to adjust the softness and hardness of the film. The resin solution prepared by solution polymerization is generally a copolymer, mainly used in the coating industry.
2.? It is prepared from methyl methacrylate, initiator (azodiisobutyronitrile or benzoyl peroxide), stearic acid and dibutyl phthalate by prepolymerization, pouring, cooling and demoulding.
China
