Results 1 to 10 of about 68,188 (250)
Urea-formaldehyde resin room temperature phosphorescent material with ultra-long afterglow and adjustable phosphorescence performance [PDF]
Nature CommunicationsOrganic room-temperature phosphorescence materials have attracted extensive attention, but their development is limited by the stability and processibility.
Wensheng Xu +9 more
doaj +2 more sources
Infrared absorption spectra of nanosized silica with organic additives
Trudy Odesskogo Politehničeskogo Universiteta, 2014 The prospects of using of silica nanoparticles modified with urea-formaldehyde polymers which is obtained by sulfuric acid sol-gel technology are shown.
Марія Олегівна Савченко +3 more
doaj +7 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
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 +1 more source
Jurnal Penelitian Hasil Hutan (Journal of Forest Products Research), 2017 This paper presents the result of a laboratory study on the properties of Urea formaldehyde resin manufactured with 5 molar ratio treatment of Urea and formaldehyde, and its effect on plywood glue shear strength.
Suwandi Kliwon
doaj +1 more source
BioResources, 2023 Urea-formaldehyde (UF) resins, as the most common adhesives for wood-based composites, emit formaldehyde, which is forcing producers to find a solution to this problem. Using scavengers is a practical way of reducing formaldehyde emissions, but sometimes
Leila Asadi Khorramabadi +2 more
doaj +2 more sources
Forestist, 2004 In this study, influence of melamine formaldehyde addition into the urea formaldehyde adhesive on some physical (thickness swelling) and nıechanical (static bending, modulus of elasticity and internal bond) properties of particleboard was investigated.
Gökay NEMLİ, Turgay AKBULUT
doaj +1 more source
Jurnal Penelitian Hasil Hutan (Journal of Forest Products Research), 2017 The problem in using plywood bonded with urea formaldehyde (UF) is formaldehyde emission, especially in a room with limited ventilation. To reduce formaldehyde emission, the glue can be mixed with catching agent.
Paribotro Sutigno, Adi Santoso
doaj +1 more source