Results 71 to 80 of about 1,283,771 (199)

Formaldehyde emissions from lightweight particleboard containing sunflower and miscanthus stalk particles

open access: yesНаукові праці Лісівничої академії наук України
The study presents the results of investigating the effect of sunflower-stalk (Helianthus annuus L.) and miscanthus-stalk (Miscanthus × giganteus) particles (chips) on free formaldehyde emissions from lightweight three-layer particleboards glued with ...
Ruslan Kozak, Volodymyr Biruk
doaj   +1 more source

CONSIDERATIONS CONSIDERING THE EVOLUTION OF GAS EMISSION TYPE FORMALDEHIDE AND VOLATILE ORGANIC COMPOUNDS IN THE DLP PRINTING PROCESS WITH ECOLOGICAL RESIN

open access: yesNonconventional Technologies Review, 2022
In this paper, the author proposes an exploratory study in which it is possible to observe the evolution of formaldehyde emission in a printing process in which mash stereo lithography (MSLA) is used.
Mircea Dorin Vasilescu
doaj  

Effect of Sepiolite Filler in Malamine-Urea-Formaldehyde Resin on the Properties of Three-ply Plywood

open access: yesBioResources, 2015
A low-cost sepiolite (SEP) was used to replace wheat flour (WF) as a filler applied to melamine-urea-formaldehyde (MUF) resin. Three-ply plywood was fabricated with different SEP/WF formulations, and its wet shear strength and formaldehyde emission were ...
Xiaona Li   +3 more
doaj   +1 more source

Problems associated with the use of urea-formaldehyde foam for residential insulation. Part II. The effects of temperature and humidity on free formaldehyde, extractable formaldehyde, formaldehyde emission, and physical characteristics of the foam [PDF]

open access: yes, 1981
Results of testing with two products of urea-formaldehyde based foams are described. Results of three products have previously been reported. Methods for detection and quantitative determination of formaldehyde, design of the experimental chambers, and ...
Frank, C. W.   +3 more
core   +1 more source

Preparation and Characterization of Bio-Oil Modified Urea-Formaldehyde Wood Adhesives

open access: yesBioResources, 2014
Wood-derived bio-oil was used to decrease formaldehyde emissions from urea-formaldehyde (UF) resin during the process of making three-layered plywood. The obtained bio-oil urea formaldehyde (BUF) resins were characterized by their physical, chemical, and
Ben Li   +4 more
doaj   +1 more source

Effects of Addition Ammonia Modified Urea-Melamine-Formaldehyde Resin on the Adhesions and Formaldehyde Emission in Plywood

open access: yes, 2010
This study was carried out to investigated the effect of addition ammonia which concentration is 20 percent modified urea-melamine-formaldehyde resin on the formald-ehyde emission and internal bonding strength, when hotpress temperature, time and ...
Sheng You Ye, Jun You Shi
core   +1 more source

Effects of moisture content on formaldehyde emission and mechanical properties of plywood

open access: yes, 2006
Wood is a hygroscopic material and has ability to exchange its moisture content with air. Many mechanical properties are affected by changes in moisture content below the fiber saturation point of wood.
Colak, SEMRA   +3 more
core   +1 more source

Investigation of the effects of heat treatment on medium density fiberboard (MDF)

open access: yesTurkish Journal of Forestry
In particular, materials such as medium density fiberboard (MDF) have advantages such as high strength, homogeneous structure and easy processability, but disadvantages such as sensitivity to water and formaldehyde emission.
Murat Özalp   +2 more
doaj   +1 more source

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