86

The article considers  the only problem existing in the plywood production  of glued and pressed wood-based composite materials, that demands technology and production improvement in this area. Thermo-reactive polymer-based adhesives and resins used as binders in the production contain a toxic substance-formalin. This, in turn, is known to cause serious damage to human health[1]. For this reason, in order to reduce the level of chemical toxicity of the used binder resins, scientific research is being carried out in the production of wood composite materials modified with certain chemical compounds[2,12]. We also conducted a research in the laboratory to obtain resin-treated by modifying phenol-formaldehyde resin, which is partially highly-toxic.

 

  • Web Address
  • DOI
  • Date of creation in the UzSCI system25-03-2021
  • Read count84
  • Date of publication19-11-2020
  • Main LanguageIngliz
  • Pages53-58
English

The article considers  the only problem existing in the plywood production  of glued and pressed wood-based composite materials, that demands technology and production improvement in this area. Thermo-reactive polymer-based adhesives and resins used as binders in the production contain a toxic substance-formalin. This, in turn, is known to cause serious damage to human health[1]. For this reason, in order to reduce the level of chemical toxicity of the used binder resins, scientific research is being carried out in the production of wood composite materials modified with certain chemical compounds[2,12]. We also conducted a research in the laboratory to obtain resin-treated by modifying phenol-formaldehyde resin, which is partially highly-toxic.

 

№ Author name position Name of organisation
1 Aliyev S.S. ассистент Тошкент кимё-технология институти
№ Name of reference
1 1. Krivorotova A. I., Ushanova V. M. Uluchsheniya ekologicheskyx svoystv i kachestvennyx xarakteristik fanernoy produksii, s ispol’zovaniem kleev modifisirovannyx ekstraktami kory xvoynyx[ Improvement of ecological properties and qualitative characteristics of plywood products, using adhesives modified with extracts of coniferous bark]. Xvoynyy borealnoy zony, 2014, no.4 , pp. 52-55.
2 2. Zhuk P. M. Analiz sposobov snijeniya emissii formaldegida iz drevesnyx plit [Analysis of methods for reducing the emission of formaldehyde from wood pltes]. Mejdunarodniy nauchno-issledovatelskiy jurnal, 2017, no 11(65) part 4, pp. 36-40
3 3. Jabbarov T. A. Polucheniya modifisirovannyx fenolformaldegidnyx oligomerov [Obtaining modified phenoloformaldehyde oligomers]. Universum. Ximiya-biologiya, 2020, no 8 (74), pp. 49-52.
4 4. GOST 11368-89. Massa drevesnyy pressovachnyy . Texnicheskaya usloviya. Moscow, Gosudarstvennyy komitet SSSR po standartam Publ., 1990. 23 p. (In Russian). 5. Laptev V. N. Proizvodstva drevesnoy massy [ Production of wood press-mass]. Sankt-Peterburg, Publ., 2009. 48 p.
5 5. Laptev V. N. Proizvodstva drevesnoy massy [ Production of wood press-mass]. Sankt-Peterburg, Publ., 2009. 48 p.
6 6. Shakina A. A. Polimer- drevesniy materialy na osnove otxodov drevesiny i vtorichnyx termoplastov [Polymer-wood materials based on wood waste and recycled thermoplastics]. Moscow, 2001. 160 p.
7 7. Magrupov F. A., Umarov Sh., Tohirov M., Radjabova Z. Issledovaniy usloviy obrazovaniya modifisirovannyx gidrooksilsoderjaeshim poliefirpoliolom fenolo-formaldegidnyx oligomerov [The research of conditions for the formation of phenol-formaldehyde resins modified with hydroxyl containg polyether polyol]. Chemistry and chemical engineering, 2020, vol 18, iss 2, pp 52-56.
8 8. Vorobyev A. Fenoloformaldegidniy smoly [Phenol-formaldehyde resins]. Komponenty i Texnologii, 2003, no. 7, pp. 176-179.
9 9. Varfolomeyv A. A., Sinegibskaya A. D., Gogotov A. F., Kaniskaya L. V., Roxin A. V. Fenolformaldegidniy smoly, modifisirovannyy ligninom. Noviy aspekty resksyy [Phenolformaldehyde resins modified with lignin. New aspects of the reaction]. Ximiya rastitelnogo sirya, 2009, no. 3, pp. 11-16.
10 10. Maslosh V. Z., Maslosh O. V., Taranenko N. N., Loshkova E. B. Raschyot prosessa polikondensasii fenoloformaldegidnyx smol po kriteriy aktivnosti [ Calculation of the polycondensation process of phenolo-formaldehyde resins according to the activity criterion].Vostochno-Evropeyskiy jurnal peredovyx texnologii, 2013, no. 5(6), pp. 32-35.
11 11. Brutyan K. G., Varankina G. S., Ivanov A. M., e.a. Modifisirovannaya fenoloformaldegidnaya smola dlya proizvodstva drevesnyx kleenyx materialov i sposob izgotovleniya modifikatora [Modified phenoloformaldehyde resin for production of wood glued materials and method for manufacturing modifier]. Patent RU, no. 2645132C2, 2018.
12 12. Xasanshin R. R. Obzor sovremennyx issledovaniy po snijeniyu toksichnosti drevesno-kleenyx materialov [Overview of contemporary research to reduce the toxicity of wood-glued materials]. Vestnik Kazanskogo texnologicheskogo universiteta, 2014, no. 6, pp.51-53.
13 13. Svetkov V. E., Ugryumov S. A. Osenka raboty adgezii modifisirovannogo fenoloformaldeginogo oligomera [Evaluation of the adhesion work of the modified phenolformaldehyde oligomer]. Lesnoy vestnik, 2009, no. 4, pp. 127-129.
14 14. Solovyeva T. V., Revyako M. M., Xmyzov I. A. Texnologiya drevesnyx kompozisionnyx materialov i izdeliy [Technology of wood composite materials and manufactures]. Minsk, BGTU Publ., 2008. 187 p.
15 15. Magrupov F. A., Alimuhamedov M. G., Magrupov A. F., Nizamov T.A., Radjabova Z. F., Adilov R. I., Juraev A. B. Issledovanie mexanizma formirovaniya sshityx furfurilformaldegidnyx polimerov [Investigation of the mechanism of formation of crosslinked furfuryl-formaldehyde polymers] Plasticheskie massy, 2015, no.7-8. - pp.15-19.
Waiting