Results 11 to 20 of about 72,465 (283)
Liquefied wood as a partial substitute of melamine-urea-formaldehyde and urea-formaldehyde resins [PDF]
Maderas. Ciencia y Tecnología, 2015 Maritime pine (Pinus pinaster) sawdust was used to produce liquefied wood by the polyhydric method with acid catalysis. The process was optimized to produce the highest amount of liquefied wood. Wood liquefied at 160ºC for 90 min was used in the adhesion tests.
Esteves, Bruno +5 more
openaire +6 more sources
The effect ratio of adhesive urea formaldehyde melamine formaldehyde on the properties lightweight particleboard made from expanded polystyrene [PDF]
تحقیقات علوم چوب و کاغذ ایران, 2014 In this study the possibility of using urea formaldehyde and melamine urea formaldehyde with different ratios of formaldehyde and melamine for manufacture lightweight particleboard by expanded polystyrene (EPS) was investigated.
Samaneh Mir +2 more
doaj +2 more sources
Liquefied wood as a partial substitute of melamine-urea-formaldehyde and urea-formaldehyde resins
Maderas: Ciencia y TecnologíaMaritime pine (Pinus pinaster) sawdust was used to produce liquefied wood by the polyhydric method with acid catalysis. The process was optimized to produce the highest amount of liquefied wood. Wood liquefied at 160ºC for 90 min was used in the adhesion
Bruno Esteves +5 more
doaj +2 more sources
Natural Additive for Reducing Formaldehyde Emissions in Urea-Formaldehyde Resins
Journal of Renewable Materials, 2016 This work studies the use of soy protein as a natural formaldehyde scavenger in wood particleboard production. The protein is incorporated in two forms: a) as a powder, during the blending process of wood particles with urea-formaldehyde binder resin, and b) as an aqueous solution, added at different times during resin synthesis.
Flávio Pereira +6 more
openaire +4 more sources
Agricultural and Food Science, 1982 In two different experiments silages prepared with formaldehyde-containing additives were fed to cows with and without formaldehyde-treated urea, and formaldehyde was determined on both the silage and the milk. The silage additive contained 20 % HCHO and
Liisa Syrjälä-Qvist, Jouko Setälä
doaj +2 more sources
Urea formaldehyde foam insulation
, 1981 Urea formaldehyde foam insulation has been used in Canada for a number of years. Studies and reports subsequently identified instances of medical problems and structural deterioration of the buildings occurring after the installation of the foam. A ban on the use of urea formaldehyde foam insulation was announced by (National) Health and Welfare Canada
Chown, G. A. +2 more
openaire +2 more sources
Synthesis of an exfoliated kaolinite-poly(urea-formaldehyde) nanocomposite. [PDF]
RSC AdvInternational audienceIn this study, kaolinite-poly(urea-formaldehyde) was successfully prepared through the polymerization of urea intercalated within the kaolinite structure.
Tatang HB +6 more
europepmc +2 more sources
Urea-Formaldehid Konsentrat Sebagai Bahan Baku Resin Urea-Formaldehid
Rekayasa Hijau: Jurnal Teknologi Ramah Lingkungan, 2022 ABSTRAK Panel kayu merupakan produk yang terbuat dari bahan kayu yang direkatkan dengan menggunakan resin, bahan perekat yang digunakan dalam produksi kayu lapis merupakan resin urea-formaldehid (UF). Resin UF adalah resin thermosetting yang terbuat dari
Dila Athariqa +2 more
doaj +1 more source
ROLE OF BIO AND ORGANIC FERTILIZATION ON SUSTAINING NITROGEN REQUIREMENTS FOR RICE PRODUCTION [PDF]
Journal of Soil Sciences and Agricultural Engineering, 2011 A field experiment was performed on a clay soil at Bahtim Agriculture Research Station during season 2009 to evaluate the effective role of bio (blue green algae, BGA), organic manure (farmyard, FYM) in combination with two N-mineral sources, urea (46 ...
M.S. Awaad +3 more
doaj +1 more source