Results 121 to 130 of about 72,465 (283)
Spectroscopic analysis of urea-formaldehyde resin with and without acrylamide / Nurul Syafikah Sohaimi [PDF]
, 2016 The urea-formaldehyde of 1.2 mole ratio were prepared with and without acrylamide. The acrylamide was used to lower the emission of formaldehyde from urea formaldehyde resin.
Sohaimi, Nurul Syafikah
core
, 2018 Previous research into the synthesis of urea-formaldehyde fertilizers was mostly based on orthogonal experimental designs or single factor tests; this led to low precision for synthesis and relatively large ranges of parameters for these processes.
Min Zhang +6 more
core +1 more source
Revisiting the synthesis of dimethyl carbonate from methanol and carbon dioxide
The Canadian Journal of Chemical Engineering, EarlyView.Abstract The process for producing dimethyl carbonate (DMC) from carbon dioxide (CO2) and methanol is explored in this article. It provides an overview of the thermodynamics involved in DMC synthesis, discussing the challenges and potential solutions. The article highlights the reported use of catalysts and dehydrating agents to improve DMC yield and ...
Diego Alexander Santos Araque +3 more
wiley +1 more source
, 2016 This study was conducted to investigate the ratio of formaldehyde/urea (F/U) and catalysts against the formation of urea-formaldehyde resin. The F/U was varied in 1.5, 2, 2.5, 3. The catalysts used were NaOH and NH4OH.
Syaichurrozi, Iqbal
core +1 more source
EcoEnergy, EarlyView.The strong metal‐support interaction between sodium tungsten bronze and NiCo alloy reduces carbon dioxide adsorption, thereby mitigating catalyst poisoning and enabling a highly efficient and stable urea oxidation reaction. ABSTRACT The development of highly active urea oxidation reaction (UOR) catalysts with superior anti‐poisoning capability poses a ...
Zhixiang Zhai +6 more
wiley +1 more source
Maderas: Ciencia y Tecnología, 2018 Physical and mechanical properties were evaluated on cross-laminated panels (plywood) fabricated with three plantation species (Cordia alliodora, Gmelina arborea and Vochysia ferruginea) from tropical climates in Costa Rica.
Freddy Muñoz, Roger Moya
doaj
Characterization of the crystalline regions of cured urea formaldehyde resin
, 2017 Urea formaldehyde (UF) resins are widely used thermosetting polymers in adhesives, finishes, molded objects,etc.
Ming Liu +3 more
core +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.Using a coordinated regulation strategy of interface and ligand, we developed a nickel cobalt sulfide/carboxylate ligand‐modified nickel cobalt hydroxide composite (NiCo‐S/NiCo‐OH‐CL) with abundant heterointerfaces. Owing to the porous network, sulfur‐repellent hydrophilic surface, and dual electronic structure regulation, the coupled electrolysis ...
Jinghui Guo +12 more
wiley +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.In this study, a series of highly permeable CeO2 porous hollow microspheres with multilevel gas channels and tunable pore sizes were first prepared via the hydrothermal method, achieving rapid response and fast recovery to ammonia gas. Fast response and recovery performance is highly significant for real‐time monitoring of NH3 gas due to the toxic and ...
Mengke Li +11 more
wiley +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.Fabrication process of phase change microcapsules using a Pickering emulsion template method and their subsequent applications. The increasing demand for efficient thermal energy storage systems has driven the development of phase change material microcapsules (PCMMs), which provide high energy‐storage density, reversible phase change, and reduced ...
Ziyan Li +4 more
wiley +1 more source