Phenol formaldehyde resin - Wikipedia
网页Phenol formaldehyde resins (PF) (phenolic resins or phenoplasts [1]) 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.
Facts About Formaldehyde - US EPA
网页2024年9月11日 · What Is Formaldehyde? Formaldehyde is a colorless, flammable gas at room temperature and has a strong odor. Exposure to formaldehyde may cause adverse health effects. Where Is Formaldehyde Found? Formaldehyde is found in: Resins used in the manufacture of composite wood products (i.e., hardwood plywood, particleboard and …
Formaldehyde Resin - an overview | ScienceDirect Topics
网页Three major forms of formaldehyde resins are phenol formaldehyde and/or phenolics, melamine formaldehyde, and urea formaldehyde. In filter medium applications, all three can be used as cross-linkers with other resin systems.
Phenol-formaldehyde resin | Synthesis, Uses & Properties
网页Phenol-formaldehyde resin, any of a number of synthetic resins made by reacting phenol (an aromatic alcohol derived from benzene) with formaldehyde (a reactive gas derived from methane). Phenol-formaldehyde resins were the first completely synthetic polymers to be commercialized.
Urea-formaldehyde resin | Uses, Properties & Production
网页Urea-formaldehyde resin, any of a class of synthetic resins obtained by chemical combination of urea (a solid crystal obtained from ammonia) and formaldehyde (a highly reactive gas obtained from methane).
Urea-formaldehyde - Wikipedia
网页Urea-formaldehyde (UF), also known as urea-methanal, so named for its common synthesis pathway and overall structure, [1] is a nontransparent thermosetting resin or polymer.It is produced from urea and formaldehyde.These resins are used in adhesives, plywood, particle board, medium-density fibreboard (MDF), and molded objects. In …
Formaldehyde Resins used in Industry, Manufacturing, and …
网页This article describes the structure and covers the primary compounds based on formaldehyde, including urea formaldehyde resins, phenol formaldehyde resins, melamine resin, POM or polyoxymethylene plastic (Delrin), and MDI.
CHAPTER 1: Introduction to Formaldehyde - Royal Society of …
网页2018年5月18日 · Over 65% of the total amount of formaldehyde is used to manufacture resins including UF, phenol–formaldehyde (PF), and MF, which are typically found in construction materials, that in turn directly contribute to indoor formaldehyde pollution. While these resins also make up the majority of worldwide formaldehyde consumption …
What should I know about formaldehyde and indoor air quality?
网页2023年10月19日 · Formaldehyde, a colorless, pungent-smelling gas, can cause watery eyes, burning sensations in the eyes and throat, nausea, and difficulty in breathing in some humans exposed at elevated levels (above 0.1 parts per million). High concentrations may trigger attacks in people with asthma.
Phenol-Formaldehyde Resins: Properties, Fields of Application, …
网页2021年7月2日 · The properties, types, and application fields of phenol-formaldehyde resins are characterized, and their advantages, disadvantages, and more promising potential analogues are discussed.