Results 191 to 200 of about 2,658 (220)

Bonding performance of melamine-urea-formaldehyde and phenol-resorcinol-formaldehyde adhesives in interior grade glulam

Journal of Adhesion Science and Technology, 2017
AbstractWood moisture content (MC) affects the glued laminated beam (glulam) bonding strength. Selected adhesives were Phenol-Resorcinol-Formaldehyde (PRF) and Melamine-Urea-Formaldehyde (MUF) adhesives with 1, 1.5 and 2% (w/w) carboxymethyl cellulose (CMC) formic acid solutions.
Jun Zhou, Kong Yue, Weidong Lu, Zhangjing Chen, Xiucai Cheng, Weiqing Liu, Chong Jia, Lijuan Tang   +7 more
openaire   +1 more source

Effects of cryogenic temperature on the mechanical and failure characteristics of melamine-urea-formaldehyde adhesive plywood

Cryogenics, 2018
Abstract The present study investigates the applicability of melamine-urea-formaldehyde (MUF) resin plywood in cryogenic applications, including liquefied natural gas (LNG) carrier insulation systems. Phenolic-formaldehyde (PF) resin plywood has been extensively used as a structural material in industrial applications.
Jeong-Hyeon Kim, Sung-Woong Choi, Doo-Hwan Park, Seong-Bo Park, Seul-Kee Kim, Kwang-Jun Park, Jae-Myung Lee   +6 more
openaire   +1 more source

Acetals – induced strength increase of Melamine-Urea-Formaldehyde (MUF) polycondensation adhesives. II. Solubility and colloidal state disruption

Journal of Applied Polymer Science, 2002
The strength improvement induced by addition of acetals such as methylal and ethylal in melamine-urea-formaldehyde (MUF) resins could be mostly ascribed to the increased effectiveness and participation of the melamine to resin cross-linking. This phenomenon has been shown here, by matrix-assisted laser desorption/ionization time of flight (MALDI-TOF ...
ZANETTI, MICHELA, A. PIZZI, M. BEAUJEAN, H. PASCH, K. RODE, P. DALET   +5 more
openaire   +3 more sources

Studying possibility of using melamine-urea-formaldehyde resin-based adhesives with separately applied components in wooden structures

Polymer Science. Series D, 2010
Complex accelerated testing results on the strength and stability of glued joints obtained by separate applications of binder and hardener to glued surfaces in wooden structures are presented. The obtained data confirm the possibility of switching the wooden structure industry to more manufacturable melamineurea-formaldehyde resin-based adhesives with ...
M. I. Molchanov, L. M. Koval’chuk
openaire   +1 more source

The effect of the heat treatment of spruce wood on the curing of melamine–urea–formaldehyde and polyurethane adhesives

Journal of Adhesion Science and Technology, 2013
The effect of the heat treatment of spruce wood on the curing of melamine–urea–formaldehyde (MUF) and polyurethane (PUR) adhesives was monitored by measuring their rheological properties by means o...
Mirko Kariz, Manja Kitek Kuzman, Milan Sernek   +2 more
openaire   +1 more source

Combined FTIR spectroscopy and rheology for measuring melamine urea formaldehyde (MUF) adhesive curing as influenced by different wood extracts

European Journal of Wood and Wood Products, 2019
Reliable wood-adhesive bonds are crucial for future wood-biomass utilization. This ongoing research aims at systematically investigating interactions between adhesives and extractable wood constituents. The simultaneous examination of the progress of chemical reactions and changes in rheological properties of both pure adhesives and adhesive-extract ...
Merve Özparpucu, Theresa Wolfrum, Elisabeth Windeisen-Holzhauser, Markus Knorz, Klaus Richter   +4 more
openaire   +1 more source

Effect of Palm Kernel Meal as Melamine Urea Formaldehyde Adhesive Extender for Plywood Application: Using a Fourier Transform Infrared Spectroscopy (FTIR) Study

Applied Mechanics and Materials, 2011
Increased demand for wood adhesives, environmental concerns, and the uncertainty of continuing availability of petrochemicals have led to recent attention on protein-based adhesives. This study was conducted to investigate the physico-chemical interaction of palm kernel meal (PKM) with melamine urea formaldehyde (MUF) resins in adhesive formulation by ...
Huei Ruey Ong, Reddy Prasad, Md. Maksudur Rahman Khan, Md. Najmul Kabir Chowdhury   +3 more
openaire   +1 more source

Poly(amidoamine)s dendrimers of different generations as components of melamine urea formaldehyde (MUF) adhesives used for particleboards production: what are the positive implications?

Journal of Polymer Research, 2013
Poly(amidoamine)s dendrimers (PAMAM)s of different generations (Gn, where n = 1–3) were prepared via Michael addition/amidation reactions following a well-established procedure and their molecular weights were determined using matrix-assisted laser desorption ionization-time of flight (MALDI-TOF).
Zhou, X., Essawy, H. A., Pizzi, Antonio, Li, Xiaogai, Pasch, H., Pretorius, Nadine, Du, G.   +6 more
openaire   +2 more sources

First/second generation of dendritic ester-co-aldehyde-terminated poly(amidoamine) as modifying components of melamine urea formaldehyde (MUF) adhesives: subsequent use in particleboards production

Journal of Polymer Research, 2014
Particleboards production, which depends mainly on thermoset resins, e.g., such as melamine urea formaldehyde (MUF) and urea formaldehyde (UF), can result in subsequent liberation of the carcinogenic formaldehyde of the panel in service. This situation needs the substitution of formaldehyde with less active aldehydes.
X. Zhou, H. A. Essawy, A. Pizzi, J. Zhang, X. Li, G. Du   +5 more
openaire   +1 more source

Low addition of melamine salts for improved Melamine-Urea-Formaldehyde adhesives water resistance

2003
The addition of melamine acetate salts to an adhesive glue mix can allow the use of melamine–urea– formaldehyde (MUF) resins of lower melamine contents (rather than just urea–formaldehyde resins) and lower total amounts of melamine. Performances can be obtained that are characteristic of the top-of-the-line, generally higher mel- amine content MUF ...
ZANETTI, MICHELA, PIZZI A.
openaire   +1 more source