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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.
Sensitization to formaldehyde has been decreasing since 1980 due in part to the replacement of formaldehyde by these formaldehyde releasers. [2] As of 2009, frequency of sensitization to formaldehyde is stable at 2–3% in Europe. [2] It might be as high as 9% in the USA. [2] [13]
As a result, Solenis developed a completely formulated soy adhesive for use in wood composites, which offers furniture manufacturers and consumers a safer alternative. Solenis' line of Soyad adhesives contains no formaldehyde and low volatile organic compounds (VOCs). Typical interior wood products include urea formaldehyde (UF) in their ...
Urea-formaldehyde (UF) Phenol formaldehyde (PF) See also. Formaldehyde (disambiguation) This page was last edited on 26 December 2024, at 19:48 (UTC). Text is ...
Some people have a contact allergy to imidazolidinyl urea causing dermatitis. [3] Such people are often also allergic to diazolidinyl urea. In addition to being an allergen, it is a formaldehyde releaser, since it generates formaldehyde slowly as it degrades. Although the formaldehyde acts as a bactericidal preservative, it is a known carcinogen.
Even worse, an estimated 42% of them emitted toxic levels of formaldehyde, a chemical that causes nasal cancer and nosebleeds, and can aggravate asthma and other respiratory problems.
The result was Aerolite, a urea-formaldehyde adhesive which unlike conventional glues of the time, resisted water and micro-organisms. Further research showed that gap-bridging hardeners incorporating formic acid enabled Aerolite to be used as an assembly adhesive. Aerolite was the first adhesive of its type to be invented and manufactured in ...
This page was last edited on 20 February 2006, at 03:17 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
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