A Controlled‐Release Biofertilizer Using Composite of Poly (Urea–Formaldehyde), Date Seeds and Sulfate of Potash‐Magnesia (2MgSO4·K2SO4) as All‐Biodegradable With Antimicrobial Potentials
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DOI: 10.1002/bip.70016
Abstract: Based on the combination of poly (urea‐formaldehyde) (UF), Sulfate of Potash‐Magnesia (Sul‐Po‐Mag) fertilizer (2MgSO4·K2SO4), and Date Kernel Seed (DS), a novel slow‐release fertilizer in the form of granules called UF/DS/Sul‐Po‐Mag composite was introduced. The IR,… read more here.
Keywords: potash magnesia; release; sulfate potash; urea formaldehyde ... See more keywords
Advances in Lignin Chemistry, Bonding Performance, and Formaldehyde Emission Reduction in Lignin‐Based Urea‐Formaldehyde Adhesives: A Review
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DOI: 10.1002/cssc.202500491
Abstract: Lignin, a complex biopolymer derived from plant biomass, has attracted significant attention in both academic research and industry due to its potential to revolutionize formaldehyde‐based adhesives by reducing their emissions, a critical concern in the… read more here.
Keywords: lignin based; chemistry; lignin; formaldehyde adhesives ... See more keywords
Synthesis of graphene oxide–epoxy resin encapsulated urea–formaldehyde microcapsule by in situ polymerization process
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DOI: 10.1002/pc.23979
Abstract: A new type of microcapsule has been prepared with urea–formaldehyde (UF) as shell material and graphene oxide (GO)–epoxy resin with acetone as standard solvent between them as the core material. In situ polymerization procedure was… read more here.
Keywords: graphene oxide; urea formaldehyde; epoxy resin; oxide epoxy ... See more keywords
Performance and structures of urea-formaldehyde resins prepared with different formaldehyde solutions
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DOI: 10.1007/s00226-021-01280-y
Abstract: Two types of urea–formaldehyde (UF) resin adhesives were synthesized with standard formaldehyde solution with 37% concentration and concentrated formaldehyde solution with 45% concentration. For 37% formaldehyde, 10% methanol was used as an inhibitor. For 45%… read more here.
Keywords: urea formaldehyde; performance; formaldehyde; standard formaldehyde ... See more keywords
Morphological study of surface-modified urea–formaldehyde microcapsules using 3-aminopropyltriethoxy silane
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DOI: 10.1007/s00289-018-2425-8
Abstract: In the current study, urea–formaldehyde (UF) microcapsules containing drying oils were prepared by in situ polymerization method. The surface of the prepared UF microcapsules was functionalized by using a silane-coupling agent. Scanning electronic microscopy (SEM),… read more here.
Keywords: silane; urea formaldehyde; microscopy; surface ... See more keywords
Synthesis and evaluation of low viscosity melamine urea formaldehyde for bulking treatment of wood
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DOI: 10.1007/s13196-020-00270-0
Abstract: This study attempted to produce a low viscosity melamine urea formaldehyde (MUF) resin. The MUF resins were diluted into concentration of 20% and 30% based on solid content with different melamine contents (20 to 30%),… read more here.
Keywords: viscosity; urea formaldehyde; viscosity melamine; melamine urea ... See more keywords
Compact energetic crystals@ urea-formaldehyde resin micro-composites with evident insensitivity
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DOI: 10.1016/j.coco.2019.07.002
Abstract: Abstract To improve the safety of nitramine explosives, two compact urea-formaldehyde (UF) resin coating micro-composites were fabricated via poly-condensation of urea and formaldehyde on the surfaces of octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX) and 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexazisowurtzitane (HNIW) in this study.… read more here.
Keywords: urea formaldehyde; micro composites; formaldehyde resin; energetic crystals ... See more keywords
Self-healing nanocomposites comprised of poly(urea formaldehyde) nanocapsules in a thermosetting polyurea
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DOI: 10.1016/j.eurpolymj.2020.109545
Abstract: Abstract In this study, poly(urea formaldehyde) (PUF) nanocapsules with epoxy cores were blended into a polyurea matrix, formulated as poly[(phenyl isocyanate)–co-formaldehyde] (PMDI) (f = 3.4), and a diamine curing agent (VERSALINK 650) to form nanocomposites. The nanocomposites… read more here.
Keywords: puf nanocapsules; urea formaldehyde; formaldehyde; poly urea ... See more keywords
Quantification of hydrolytic degradation of cured urea-formaldehyde resin adhesives using confocal laser scanning microscopy
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DOI: 10.1016/j.ijadhadh.2016.12.004
Abstract: Abstract This study reports a method of measuring the extent of hydrolytic degradation of cured urea-formaldehyde (UF) resins trapped in the lumen of softwood tracheids, using confocal laser scanning microscopy (CLSM) which enables quantitative determination… read more here.
Keywords: degradation; urea formaldehyde; cured urea; microscopy ... See more keywords
Palm kernel meal as a melamine urea formaldehyde adhesive filler for plywood applications
Sign Up to like & getrecommendations! Published in 2018 at "International Journal of Adhesion and Adhesives"
DOI: 10.1016/j.ijadhadh.2018.05.014
Abstract: Abstract In this work, palm kernel meal (PKM) and palm shell (PS) were studied as a filler for wood adhesive formulations and their efficiency was compared with existing industrial flour (IF). Melamine urea formaldehyde (MUF)… read more here.
Keywords: palm kernel; urea formaldehyde; filler; kernel meal ... See more keywords
Effect of the initial F/U molar ratio in urea-formaldehyde resins synthesis and its influence on the performance of medium density fiberboard bonded with them
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Adhesion and Adhesives"
DOI: 10.1016/j.ijadhadh.2019.102440
Abstract: Abstract The formaldehyde to urea molar ratio (F/U) plays an important role on the properties of urea formaldehyde (UF) resins and of the medium density fiber board (MDFs) bonded with them. This work presents a… read more here.
Keywords: initial molar; urea formaldehyde; molar ratio; molar ... See more keywords