Question

What is the structure of urea formaldehyde resin?

Answer 1

Answer:

Urea-formaldehyde. Urea-formaldehyde (UF), also known as urea-methanal, so named for its common synthesis pathway and overall structure, is a non-transparent thermosetting resin or polymer. ... These resins are used in adhesives, finishes, particle board, medium-density fibreboard (MDF), and molded objects.

Answer 2

Answer:

Explanation:

The soft-segments largely control the toughness and low-temperature properties of PUs, while the hard-segments particularly provide the elastomer with high modulus, hardness, and tear strength. It is known that UF is prepared from the reaction of formaldehyde with the active hydrogen atom in the primary amine of urea.