Address: 17 Naberezhnaya Severnoy Dviny, Arkhangelsk 163002 Russian Federation. Northern (Arctic) Federal University named after M.V.Lomonosov. Office 1425

Phone / Fax: (818-2) 21-61-18
E-mail: forest@narfu.ru
http://lesnoizhurnal.ru/en/

RussianEnglish



Archive

Formation of Low Toxicity Particle Boards Using Modified Adhesives

Версия для печати
Creative Commons License
These works are licensed under a Creative Commons Attribution 4.0 International License.

A.N. Chubinsky, G.S. Varankina

Complete text of the article:

Download article (pdf, 0.4MB )

UDС

674.812

DOI:

Abstract

The paper studies the effect of reactive filler on the physico-mechanical properties of particle board and content of free formaldehyde in board materials. For this purpose we used samples of particle board based on urea-formaldehyde binder as the most frequently used in production. Intensity of formaldehyde emission from the finished board depends on the following factors: properties of the resin used and, in the first place, the content of free formaldehyde in it; the amount of added binder; board pressing conditions (moisture of tarred chips, pressing temperature and duration); use conditions of boards or products made of them, and the type of surface coating. Board toxicity is reduced due to the chemical interaction between a new type of filler – aluminosilicate – and adsorption of aromatic hydrocarbons contained in resin: alcohols, aldehydes, acids, including formaldehyde. The strength of particle board at static bending grows due to higher degree of polymer structuring and increased molecular weight, greater cohesive strength and better reaction with wood components. Using the methods of search for optimal variable factors and corresponding efficiency indices, we determined specific values of the regime parameters under investigation.

Authors

A.N. Chubinsky, G.S. Varankina
St. Petersburg State Forest Technical University namber after S.M. Kirov

Affiliation

St. Petersburg State Forest Technical University namber after S.M. Kirov

Keywords

particle board, urea-formaldehyde resin, modifier, aluminosilicate

Formation of Low Toxicity Particle Boards Using Modified Adhesives

 

Make a Submission


ADP_cert_2024.png

Lesnoy Zhurnal (Russian Forestry Journal) was awarded the "Seal of Recognition for Active Data Provider of the Year 2024"

INDEXED IN: 

scopus.jpg

DOAJ_logo-colour.png

logotype.png

Логотип.png