Results 11 to 20 of about 2,801 (177)

Urea-Formaldehid Konsentrat Sebagai Bahan Baku Resin Urea-Formaldehid

open access: yesRekayasa 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

Study on the Pyrolysis Behaviors of Urea-Formaldehyde Resin and Rice Straw Mixed Pellets

open access: yesFrontiers in Energy Research, 2022
In order to study the effect of biomass on the pyrolysis characteristics of urea-formaldehyde resin, the thermogravimetric experiments were carried out respectively using urea-formaldehyde resin (UF), rice straw (RS), and their mixed pellets with ...
Xiaoteng Li   +5 more
doaj   +1 more source

Complex chemical interactions on thermo hydrolytic degradation of urea formaldehyde resins (UF-resins) in recycling UF-bonded boards [PDF]

open access: yesEuropean Journal of Wood and Wood Products, 2011
Thermohydrolytic treatment of chips from UF-bonded particleboards using the flask method technique at temperatures of about 103°C resulted in a notable increase in the pH-value of aqueous absorption medium after a reaction period of 24 h, most likely due to degradation of the UF-resin.
Roffael, Edmone, Huester, H-G
openaire   +2 more sources

The Pyrolysis Behaviors of Blended Pellets of Pine Wood and Urea-Formaldehyde Resin

open access: yesEnergies, 2023
TG-FTIR and PY-GC/MS were used to analyze the pyrolysis behaviors of pine wood, urea-formaldehyde resin (UF resin) and their blended pellets. The pyrolysis process was divided into three stages: water evaporation, devolatilization and pyrolysis residue ...
Xiaoteng Li   +4 more
doaj   +1 more source

Technological properties of a branched polyethyleneimine derivative as a cross-linker for low molar ratio urea-formaldehyde resins

open access: yesPolymer Testing, 2023
To address formaldehyde release problem, low-molar-ratio UF resin has become the industry's major adhesive for bonding wood-based panels. Unfortunately, its drawbacks of poor water resistance, low bonding strength and slow curing rate lead to low ...
Hui Wang   +4 more
doaj   +1 more source

Research on the compatibility of UF resin matrix composites with propellant [PDF]

open access: yesAIP Conference Proceedings, 2017
The exothermic behavior of propellant and propellant with core-shell particle has been monitored by DSC technique in dynamic heating conditions at four heating rates (β). And it was compared with that of propellant alone. Based on the comparison of experimental results, the decomposition peak temperature and apparent activation energy of propellant and
Shaosen Lin   +3 more
openaire   +1 more source

The Effects of Some Production Variables on Physical and Mechanical Properties of Particleboard Made of Alnus subcordata by UF and MUF resin [PDF]

open access: yesتحقیقات علوم چوب و کاغذ ایران, 2010
An experiment was conducted to study polymerization conditions and important production factors, the amount of resin and press temperature, on physical and mechanical properties of produced boards by urea formaldehyde (UF) and melamine urea formaldehyde (
Farhad Ghotbaldin   +3 more
doaj   +1 more source

Influence Of Pressing Time On Physical And Mechanical Properties Of Particleboards Made From Scots Pine (Pinus sylvestris L.)

open access: yesEuropean Mechanical Science, 2020
This study presents the results ofinvestigations on some physical and mechanical properties of one-layerparticleboards made from Scotspine (Pinus sylvestris L.).
Daniel Koynov, Miglena Valyova
doaj   +1 more source

Evaluation of the flexural properties of a new temporary splint material for use in dental trauma splints

open access: yesJournal of Dental Sciences, 2017
The present study evaluated the flexural properties of a new temporary splint material, G-Fix, for use in dental trauma splints in comparison with other resin materials.
Takahiro Shirako   +4 more
doaj   +1 more source

Influência da composição da resina tanino-uréia-formaldeído nas propriedades físicas e macânicas de chapas aglomeradas Influence of the composition of tannin-urea-formaldehyde resins in the in the physical and mechanicals properties of particleboard

open access: yesRevista Árvore, 2008
Na fabricação de aglomerados à base de madeira são utilizados adesivos sintéticos como melamina-formaldeído (MF), fenol-formaldeído (FF), uréia-formaldeído (UF), entre outros.
Fabrício Gomes Gonçalves   +2 more
doaj   +1 more source

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