What is the molecular formula of phenol-formaldehyde resin?
|Synonyms||Phenol-formaldehyde resin Phenolic resin Phenol, polymer with formaldehyde Formaldehyde phenol polymer Formaldehyde, phenol polymer More…|
|Dates||Modify 2022-02-12 Create 2005-08-08|
How do you make phenol-formaldehyde resin?
In industrial practice, there are two basic methods for making the polymer into useful resins. In one method, an excess of formaldehyde is reacted with phenol in the presence of a base catalyst in water solution to yield a low-molecular-weight prepolymer called a resole.
What is the commercial name of phenol-formaldehyde resin?
Phenolic resins are also widely known as phenol–formaldehyde resins, PF resins and phenoplasts. The trade name Bakelite has in the past been widely and erroneously used as a common noun and indeed is noted as such in many English dictionaries.
Which polymerization Procss is used for preparation phenol-formaldehyde resin is?
A step-growth polymerization reaction that can be either acid – or base-catalysed method is used for Phenol-formaldehyde resins (as a group) preparation.
What is phenolic resin properties?
The notable qualities of phenolic resin include its ability to withstand heat, hardness, dimensional stability, electrical resistance, and chemical resistance. Despite this durability, phenolic resins can be surprisingly brittle and are thus often paired with fillers and other reinforcements to bolster the resin.
What is the molecular formula of phenol?
C6H6OPhenol / Formula
1 model in this collection. Use getProperty “modelInfo” or getProperty “auxiliaryInfo” to inspect them. Phenol (also called carbolic acid) is an aromatic organic compound with the molecular formula C6H5OH.
What type of copolymer is phenol formaldehyde resin?
Phenol formaldehyde resins (PF) or phenolic resins (also infrequently called phenoplasts) are synthetic polymers obtained by the reaction of phenol or substituted phenol with formaldehyde. Used as the basis for Bakelite, PFs were the first commercial synthetic resins (plastics).
What is the formula of Bakelite?
(C6-H6-O.C-H2-O)xBakelite / Formula
How do you make phenolic?
Phenolic laminates are made by impregnating one or more layers of a base material such as paper, fiberglass, or cotton with phenolic resin and laminating the resin-saturated base material under heat and pressure. The resin fully polymerizes (cures) during this process forming the thermoset polymer matrix.
What is amino resin?
Amino resins are thermosetting resins with excellent tensile strength, hardness and impact resistance. Amino resins produce coating films with improved hardness and solvent resistance when used in combination with alkyd resins, acrylic resins, polyester resins or epoxy ester resins.