Novel Epoxy Resin Networks with High Impact Strength and Hardness

Abstract

Novel epoxy resins with high impact strength and hardness have been synthesized by the bulk polymerization method. These materials were modified with styrene, polymethylmethacrylate, methylmethacrylate, and acrylonitrile to obtain both thermoplastic and thermosetting resins. Physical properties of the resulting mixtures were evaluated by measuring the impact strength, hardness and the degree of compression. Thermograms were used to investigate the behavior of different curing agents with resins. Comparison of results of modified epoxy resin with blank epoxy resin reveals that modified resins show remarkably high glass transition temperatures and thermal stability, as well as hardness. These materials exhibit a higher degree of solvent resistance.

Epoxy Resin-modified, Urea-formaldehyde/Silicon Networks for High Impact Strength and Thermal Stability

“…However, when the epoxy resins were modified with 0.1 g urea-formaldehyde and 0.1 g silicon together, the glass transition temperature decreases to 2808C, but when 0.5 g of urea formaldehyde resin and 0.5 g silicon are added it increases to 3508C [23,24,29].…”

Synthesis of nanosized barium titanate/epoxy resin composites and measurement of microwave absorption

“…The epoxy resins were loaded (Athawale et al 2008) by adding four different concentrations of BT. For this, the reaction mixtures were prepared by mixing appropriate quantities of BT, and epoxy resin monomer and hardener in a beaker and heating on a hot plate at 80°C with continuous stirring for 30 min to obtain a paste.…”