urea-formaldehyde resin


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urea-formaldehyde resin

[yu̇′rē·ə fȯr′mal·də‚hīd ′rez·ən]
(organic chemistry)
A synthetic thermoset resin derived by the reaction of urea (carbamide) with formaldehyde or its polymers. Also known as urea resin.
References in periodicals archive ?
Melamine-modified urea-formaldehyde resins mixed with ammonium polyphosphate (MUFs/APP) have been found to significantly improve the fire retardancy of medium-density fiberboard (MDF; Ma et al.
It should be pay attention to that too long hot-pressing time or too high temperature would make urea-formaldehyde resin cured excessively to lead to embitterment, which could reduce the properties of the composite board [5, 6].
1) is much greater than in case of the composites made of oak wood flour / urea-formaldehyde resin.
Examination of selected synthesis and room-temperature storage parameters for wood adhesive-type urea-formaldehyde resins by [sup.
The process of manufacturing particleboards from wood waste and urea-formaldehyde resin or bi-component polyurethane based on castor oil follows the steps briefly discussed and detailed below by Maloney (1996).
However, there is very little or no information on the physical and mechanical properties of sandwich-type panels with a combination of these two wood species using both urea-formaldehyde resin and cassava starch as a potential green binder.
Evaluation of melamine modified urea-formaldehyde resin for plywood flooring adhesive application.
Dynamic mechanical analysis of urea-formaldehyde resin adhesives with different formaldehyde-to-urea molar ratios.
This research evaluated the properties of three-ply, particleboard-core panels made from four Korean species and a laboratory-synthesized urea-formaldehyde resin adhesive mix, The performance test results showed that three-ply, particleboard-core panels can be used for interior applications, such as flooring.
Evaluation of melamine-modified urea-formaldehyde resin binders for particleboard.
Urea-formaldehyde resin (UF) was applied at 9 percent for the core layer and 11 percent for the face layers based on oven dry weight.
PBs were manufactured with synthesized urea-formaldehyde resin at 6 percent resin solids level, ovendry particle weight basis, and cured at 5 minutes hot-press time (162[degrees]C).