Results 1 to 10 of about 361,164 (165)

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, Saeid reza Farokh payam, Morteza Nazerian   +2 more
doaj   +2 more sources

Competitive polycondensation of model compound melamine-urea-formaldehyed (MUF) resin system by 13C NMR

Journal of Bioresources and Bioproducts, 2020
Melamine-urea-formaldehyde (MUF) resin is an excellent adhesive in the field of wood adhesives, however the competition mechanism is questionable which affects the structure control and performance optimization of the resin.
Jiankun Liang, Quan Li, Zhigang Wu, Guanben Du, Taohong Li, Hong Lei, Lifen Li   +6 more
doaj   +1 more source

Functionalized Natural Tannins For Preparation of a novel non-isocyanate polyurea-based adhesive

Polymer Testing, 2023
In recent years, the shortcomings of products bonded with adhesives of conventional resins (e.g. urea-formaldehyde, phenol-formaldehyde, melamine-based) have raised concerns as people have become more environmentally conscious while fossil resources are ...
Haizhu Wu, Dongsen Liao, Xinyi Chen, Guanben Du, Taohong Li, Hisham Essawy, Antonio Pizzi, Xiaojian Zhou   +7 more
doaj   +1 more source

INFLUENCE OF MELAMINE FORMALDEIIYDE ADD1TION INTO THE UREA FORMALDEHYDE ADIIESIVE ON SOME PROPERTIES OF PARTICLEBOARD

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

The dynamics of thickness swelling and bond strength loss of different wood-based panels at exposure to humid climate and immersion into water

Les, 2019
An important aspect of wood-based panel usability, especially for construction, load bearing purposes or when in use for longer time, is its resistance against water.
Sergej Medved, Damjan Žgajner, Alan Antonović   +2 more
doaj   +1 more source

Study of thermal state, water absorption and strength properties of composite polymerpolymer binders [PDF]

E3S Web of Conferences
In this article, in order to improve the heat-water resistance and strength properties, the modification of urea-formal- dehyde polymeric materials is considered by introducing melamine and acrylonitic resins and reactive compounds into their composition.
Rakhmanov Sharifjon, Nishonov Utkirbek
doaj   +1 more source

Investigation of mechanical properties particleboard based on canola stalks and poplar wood by Response Surface Method (RSM) [PDF]

تحقیقات علوم چوب و کاغذ ایران, 2015
In this study the possibility of using canola stalks mixed with poplar wood in the manufacture of particleboard was investigated. Weight ratio of canola particle to poplar particles at five levels (98, 93/75, 87/50, 81/25, 77%), the weight ratio of the ...
Sajad Akbari, Morteza Nazeryan, Saeid reza Farokhpayam, Babak Nosrati sheshkal   +3 more
doaj   +1 more source

Effect of Low Temperatures on the Block Shear Strength of Norway Spruce Glulam Joints

BioResources, 2016
The block shear strength of Norway spruce (Picea abies (L.) Karst.) glulam joints was tested under low temperatures. Glulam samples were glued with the three of the most common outdoor structural adhesives. The cold temperatures tested were 20, −20, −30,
Xiaodong Wang, Jonathan Björnberg, Olle Hagman, Sheikh Ali Ahmed, Hui Wan, Peter Niemz   +5 more
doaj   +1 more source

Walnut and Hazelnut Shells: Untapped Industrial Resources and Their Suitability in Lignocellulosic Composites

Applied Sciences, 2020
Walnut and hazelnut shells are agricultural by-products, available in high quantities during the harvest season. The potential of using these two agricultural residues as raw materials in particleboard production has been evaluated in this study ...
Marius Cătălin Barbu, Thomas Sepperer, Eugenia Mariana Tudor, Alexander Petutschnigg   +3 more
doaj   +1 more source

Relation of transverse air permeability with physical properties in different compositions of sugarcane bagasse particleboards

Materials Research, 2012
Studies concerning the production of particleboards with sugarcane bagasse as an alternative fibrous material have been carried out as an attempt to provide a sustainable and viable destination for this residue.
Lina Bufalino, Lourival Marin Mendes, Gustavo Henrique Denzin Tonoli, Mário Vanoli Scatolino, José Reinaldo Moreira da Silva, Fábio Akira Mori   +5 more
doaj   +1 more source