Results 151 to 160 of about 1,283,771 (199)

Reduction of Formaldehyde Emission From Plywood

Journal of Adhesion Science and Technology, 2013
The aim of this work is to evaluate performances of tannin-based resins designed as adhesive in the plywood production. For this purpose, a part of phenol formaldehyde (PF) and melamine formaldehyde (MF) in the classic adhesive formulation was replaced by tannin. The physical properties of the formulated resins (rheological characterization, etc.) were
Taghi Tabarsa
exaly   +2 more sources

The Study on Formaldehyde Emission of Composite Floor and Activated Carbon Adsorption on Formaldehyde

Advanced Materials Research, 2011
The relationship between formaldehyde emission and time was researched and a mathematical model was developed which describes the variation of formaldehyde with time in the airtight chamber. It was found that high quality composite floor was in line with 0-order kinetic equation and low quality composite floor was in line with 1-order kinetic equation.
Jian Chao Hao, Hui Fen Liu, Dong Ling Wei, Li Jun Shi, Jun Li Li, Chuan Xu   +5 more
openaire   +2 more sources

Scavengers for Achieving Zero Formaldehyde Emission of Wood-Based Panels

Wood Science and Technology, 2013
This work examines the performance of three formaldehyde scavengers in wood-based panels. Sodium metabisulfite, ammonium bisulfite and urea were applied in different physical forms during particleboard production, and the resulting physico-mechanical ...
Jorge Martins, Fernão D. Magalhães, Adélio M. Mendes   +2 more
exaly   +2 more sources

Controlling Formaldehyde Emissions with Boiler Ash

Environmental Science & Technology, 2005
Fluidized wood ash reduces formaldehyde in air from about 20 to
Jennifer, Cowan, Malyuba, Abu-Daabes, Sujit, Banerjee   +2 more
openaire   +2 more sources

Formaldehyde surface emission monitor

Analytical Chemistry, 1984
A passive surface emission monitor has been developed for nondestructive measurement of formaldehyde (CH/sub 2/O) emission rates from CH/sub 2/O resin-containing materials such as urea-formaldehyde foam insulation (UFFI) and pressed-wood products. Emitted CH/sub 2/O is sorbed by a planar distribution of 13X molecular sleve supported inside the monitor ...
T. G. Matthews, A. R. Hawthorne, C. R. Daffron, M. D. Corey, T. J. Reed, J. M. Schrimsher   +5 more
openaire   +1 more source

Formaldehyde emission from particleboard

Holz als Roh- und Werkstoff, 1981
A test method is described and experimental data are presented which compare formaldehyde emissions from edges and surfaces of particleboards. Surface emissions from boards of different structures and resins are also presented. Porosity of particleboards was measured and related to formaldehyde emission.
R. Christensen, P. Robitschek, J. Stone
openaire   +1 more source

Production of melamine fortified urea‐formaldehyde resins with low formaldehyde emission

Journal of Applied Polymer Science, 2011
AbstractMelamine can be incorporated in the synthesis of urea‐formaldehyde (UF) resins to improve performance in particleboards (PB), mostly in terms of hydrolysis resistance and formaldehyde emission. In this work, melamine‐fortified UF resins were synthesized using a strong acid process.
Nádia T. Paiva, Ana Henriques, Paulo Cruz, João M. Ferra, Luísa H. Carvalho, Fernão D. Magalhães   +5 more
openaire   +2 more sources

The Analysis of the Plywood Formaldehyde-Emission Creep

2009 3rd International Conference on Bioinformatics and Biomedical Engineering, 2009
The behavior of formaldehyde release from plywood was similar to the creep behavior of material and the liquid. So the behavior of the formaldehyde emission from plywood was modeled by the rheological theory. And the Maxwell model, Delvin model and Burger model were used to fit the creep behavior which the formaldehyde released from plywood.
Kai-Fu Li, Wen-Li Peng, Xiao-Jia Hou
openaire   +1 more source

Formaldehyde-free varnishing on stator core sheets to prevent formaldehyde emissions

2015 IEEE Electrical Insulation Conference (EIC), 2015
Formaldehyde has been identified as a hazardous gas and a number of European countries have set limits on the tolerated concentrations of it in working areas. Alstom tested and analyzed the standard varnishes in use for the past 20 years and compared them to newly developed varnishes.
T. Klamt, E. Béchir
openaire   +1 more source

Preparation of cured urea–formaldehyde resins of low formaldehyde emission

Journal of Applied Polymer Science, 1984
Several polymers containing amino or amido groups and biuret were tested as additives to ureaformaldehyde (UF) resin in order to neutralize its inherent acidity and combine free formaldehyde released upon hydrolysis of cured UF polycondensate. Each modifier was incorporated to liquid methylolureas at weight ratios of 1:100, 2:100, and 3:100 prior to ...
openaire   +1 more source