Phenolic resins are in two types as resorcinol and novalac resins. Phenol formaldehyde resin manufactured at Polisan Kimya facilities is resol type.
Polisan Kimya resol resins are produced through polycondensation of phenol, formaldehyde and urea in alcali environment.
Condensation is realized in three stages. Firstly, methylol phenols are produced with the introduction of phenol and formaldehyde and condensation is realized through formation of ether bridges with separation of water from methylol phenols and ethylene bridges with separation of water and formaldehyde.
Phenol formaldehyde resins are preferential products since they feature good thermal and chemical resistance, good dimensional stability and molding at low cost when they are molded under temperature and pressure. They have high thermal and humidity resistance, therefore, used particularly in outdoor applications or areas where water is present.
Phenol-formaldehyde resins have an extensive area of use. They are used as insulation material particularly in marine plywood production, construction molds, OSB production, glasswool and rockwool production, compact lamination and decorative lamination production, postforming applications, kraft paper impregnation, casting industry, refractory brick production, foam production and underground resources.
Polisan Kimya offers service to all of these sectors with its extensive product range and keeps extending its product range every other day to address the needs of its customers.