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Properties of poly(urea-formaldehyde) microcapsules containing an epoxy resin
, 2007 Physical properties of urea-formaldehyde microcapsules containing an epoxy resin are presented and discussed. Microcapsules were prepared by in situ polymerization of monomers in an oil-in-water emulsion.
MUSTO P +3 more
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Urea\u27s Impact on Curing Dynamics, Resin Structure, and Properties of Urea-Formaldehyde Adhesives
The curing of urea-formaldehyde resin in the presence of urea used to reduce the formaldehyde content in particleboards was researched. Free urea was added into the adhesive with different amounts of latent curing agent (1 and 3% ammonium sulfate based ...
Dr. Daniil Ivanov
core
Urea’s Impact on Curing Dynamics, Resin Structure, and Properties of Urea-Formaldehyde Adhesives
The curing of urea-formaldehyde resin in the presence of urea used to reduce the formaldehyde content in particleboards was researched. Free urea was added into the adhesive with different amounts of latent curing agent (1 and 3% ammonium sulfate based ...
Dr. Daniil Ivanov
core
Concise Chemistry of Urea Formaldehyde Resins and Formaldehyde Emission
Insights in Chemistry and Biochemistry, 2020 openaire +1 more source
Gel chromatography of urea-formaldehyde resins
BUNSEKI KAGAKU, 1974 TSUGE, Morio +2 more
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Studies on the Urea Resin. IV. On the Reaction of Urea and Formaldehyde.
Nippon kagaku zassi, 1956 openaire +2 more sources
Thermal behavior of modified urea–formaldehyde resins
Journal of Thermal Analysis and Calorimetry, 2010 The thermal stability of pure urea–formaldehyde resin (PR) and modified urea–formaldehyde (UF) resins with hexamethylenetetramine-HMTA (Resin 1), melamine-M (Resin 2), and ethylene urea (EU, Resin 3) including nano-SiO2 was investigated by non-isothermal thermo-gravimetric analysis (TG), differential thermal gravimetry (DTG), and differential thermal ...
Samaržija-Jovanović, Suzana +4 more
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A Morphological Study of Urea-Formaldehyde Resins
Journal of Adhesion, 1985Abstract The solid state of a variety of urea-formaldehyde (UF) resins has been characterized by optical and scanning electron microscopy and wide angle x-ray diffraction studies. A first group of resins of various formaldehyde to urea mole ratios (F/U=1.0, 1.25, 1.5) and solids contents (25%, 45%, 65%) were prepared from oligomeric UF species and ...
James A Koutsky
exaly +2 more sources
Pyrolysis of melamine–formaldehyde and urea–formaldehyde resins
Journal of Applied Polymer Science, 1991AbstractPyrolysis of melamine–formaldehyde and urea–formaldehyde resins in helium and air was investigated by means of TG and gravimetry with isothermal heating, as well as elemental and HCN analyses. Weight loss curves suggest three kinds of reactions involved in the pyrolysis, namely, initiation reactions, reactions splitting off volatile fragments ...
Toshimi Hirata +2 more
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Urea-Formaldehyde Resins and Free Formaldehyde Content
Acta Biologica Hungarica, 1998Specifications of wood adhesives must be in correlation with the requirements for the corresponding wood products, for which they will be used. Formaldehyde emission of wood products bonded with urea-formaldehyde resin based adhesives is strictly regulated by standards and there is a compromise is between formaldehyde emission and performance, such as ...
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