Phenolic Resin

This insulating material is also called bakelite, also known as bakelite powder, solid phenolic resin is colorless or tan transparent.
Phenolic resin insulation material is the earliest industrial synthetic resin, the market is red, yellow, black, green, brown, blue and other colors, there are particles, powder is added with coloring agent. Resistant weak acid and weak base, in case of strong acid decomposition, the case of strong alkali corrosion. Do not dissolve in water, soluble in acetone, alcohol and other organic solvents. Phenol and formaldehyde derived from condensation. It includes: novolac resins, thermosetting phenolic resins and oil-soluble phenolic resins.
bakelite electrical insulation board are mainly used for the production of compression molding powder, laminated plastic; manufacturing varnish or insulation, corrosion-resistant coatings; manufacturing daily necessities, decorations; manufacturing noise, insulation materials. It has an important feature is high temperature resistance, even at very high temperatures, but also to maintain its structural integrity and size stability. For this reason, phenolic resins are used in some high temperature areas, such as refractory materials, friction materials, adhesives and foundry industries.