Synthesis and properties of modified aminoformaldehyde resins

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Abstract

The article presents a method for the synthesis of impregnated modified aminoformaldehyde resins, a distinctive feature of which is the production of resins by alkaline-free catalysis, due to the introduction of a catalyst modifier based on salts of polyfunctional acids, which allows improving the physico-mechanical properties of resins, as well as to reduce the amount of expensive melamine. The synthesis of aminoformaldehyde resins with different molar ratios of melamine and urea to formaldehyde is described in detail by stages, the formulations of resins are given. The presented graphical dependences of the properties of the studied resins clearly show that the introduction of a catalyst modifier allows synthesis at a constant pH value, which leads to a decrease in the content of free formaldehyde, but at the same time the reactivity is preserved. The data on such properties as viscosity, penetration ability, surface tension of the modified aminoformaldehyde resins obtained are also presented. Modification of aminoformaldehyde resins leads to an improvement in the basic technological properties and an increase in their shelf life.

About the authors

Mariya Y. Ekimova

Research and Testing Center 4 of the State Central Interspecific Landfill of the Ministry of Defense of the Russian Federation

Author for correspondence.
Email: mashula111@yandex.ru

Cand. Sci. (Tech.), Senior Researcher

Russian Federation, 1, Korolev st., 416550, Znamensk, Astrakhan reg.

Vyacheslav E. Tsvetkov

BMSTU (Mytishchi branch)

Email: mashula111@yandex.ru

Dr. Sci. (Tech.), Academician of the Russian Academy of Sciences, Professor

Russian Federation, 1, 1st Institutskaya st., 141005, Mytishchi, Moscow reg.

References

  1. Volynskiy V.N. Tekhnologiya drevesnykh plit i kompozitsionnykh materialov [Technology of wood boards and composite materials]. St. Petersburg: Lan’, 2010, 336 p.
  2. Nesterenko E.A. Sistema avtomatizirovannogo upravleniya protsessom pressovaniya struzhechnykh briketov v proizvodstve drevesnostruzhechnykh plit [Automated control system for the process of pressing chip briquettes in the production of particle boards]. Aktual’nye napravleniya nauchnykh issledovaniy XXI veka: teoriya i praktika [Current directions of scientific research of the XXI century: theory and practice], 2017, v. 5, no. 4 (30), pp. 66–68.
  3. Tsvetkov V.E., Zueva M.Y. Synthesis and properties of modified melamine formaldehyde impregnating oligomers. Polymer Science, Series D, 2011, t. 4, no. 3, pp. 164–166.
  4. Yanyang C., Malysheva G.V. Optimization of the curing modes of three-layer honeycomb panels. J. of physics: conference series. Advances in Composites Science and Technologies 2020, ACST 2020, t. 1990, 2021,p. 012074.
  5. Amiraslanova M.N. Puti prakticheskogo primeneniya aminoformal’degidnykh smol [Ways of practical application of amino-formaldehyde resins]. Plasticheskie massy [Plastic masses], 2018, no. 1–2, pp. 44–48.
  6. Romanov N.M. Sovremennoe sostoyanie issledovaniy melaminoformal’degidnykh smol [Current state of research on melamine-formaldehyde resins]. Plasticheskie massy [Plastic masses], 2004, no. 2, pp. 3–11.
  7. Tsvetkov V.E., Zueva M.Yu. Sposob izgotovleniya propitochnykh oligomerov [Method for producing impregnating oligomers]. Pat. RU 2535226 dated 10/09/2014.
  8. Krivorotova A.I., Usol’tsev O.A. Primenenie modifitsirovannogo svyazuyushchego dlya izgotovleniya nizkotoksichnykh drevesnostruzhechnykh plit [Application of a modified binder for the production of low-toxic particle boards]. Aktual’nye napravleniya nauchnykh issledovaniy XXI veka: teoriya i praktika [Current directions of scientific research of the XXI century: theory and practice], 2015, v. 3, no. 2–2 (13–2), pp. 427–430.
  9. Ekimova M.Y., Tsvetkov V.E., Machneva O.P. Aminoformaldehyde oligomers modified with salts of polyfunctional acids. Polymer Science, Series D, 2021, t. 14, no. 1, pp. 13–16.
  10. Zueva M.Yu. Laminirovanie drevesnostruzhechnykh plit teksturnymi bumagami, propitannymi melaminokarbamidoformal’d egidnymi oligomerami [Lamination of particle boards with textured papers impregnated with melamine-urea-formaldehyde oligomers]. Dis.Cand. Sci. (Tech.). Moscow, MSUL, 2012.
  11. Machneva O.P., Tsvetkov V.E., Ekimova M.Y. Polyatomic alcohols as urea–formaldehyde resin modifiers. Polymer Science, Series D, 2019, t. 12, no. 2, pp. 124–127.
  12. Sokolova E.G., Varankina G.S., Rusakov D.S. Karbamidomelaminoformal’degidnaya smola dlya polucheniya vodostoykoy fanery [Urea-melamine-formaldehyde resin for producing waterproof plywood]. Klei. Germetiki. Tekhnologii [Adhesives. Sealants. Technologies], 2022, no. 2, pp. 39–43.
  13. Timoshina Yu.A., Voznesenskiy E.F., Ostrovskaya A.V., Latfullin I.I. Primenenie modifitsirovannykh aminosmol i NNTP-obrabotki dlya povysheniya adgezionnoy prochnosti kompozitsionnykh materialov na osnove poliamidnykh volokon [Application of modified amino resins and NNTP treatment to increase the adhesive strength of composite materials based on polyamide fibers]. Dizayn. Materialy. Tekhnologiya [Design. Materials. Technology], 2019, no. 2 (54), pp. 48–50.
  14. Tsvetkov V.E., Tsvetkova N.N., Razuvaeva M.V., Machneva O.P., Zueva M.Yu., Machneva N.A., Machnev A.P., Kolchev V.I. Sposob izgotovleniya karbamidoformal’degidnogo oligomera [Method for producing urea-formaldehyde oligomer]. Pat. RU 2527786 C1, 09/10/2014. Application No. 2013119163/05 dated 04/25/2013.
  15. GOST 23234–78 Plity drevesnostruzhechnye. Metod opredeleniya udel’nogo soprotivleniya normal’nomu otryvu naruzhnogo sloya [Particle boards. Method for determining the specific resistance to normal tearing of the outer layer]. Moscow: Publishing house of standards, 1988, 3 p.
  16. Lyakhov E.Y., Zorin V.A. The Influence of Technological Modes on the Quality of Coatings Made of Powder Polymer-Composite Materials. Polymer. Sci. Ser. D, 2023, v. 16, pp. 89–93.
  17. Sokolova E.G., Rusakov D.S., Chubinsky A.N., Varankina G.S., Ugryumov S.A. A study of the properties of melamine–carbamide–formaldehyde resins modified with lignosulphonates. Polymer Science, Series D, 2021, t. 14, no. 4, pp. 508–512.
  18. Tsvetkov V.E., Zueva M.Yu. Sposob izgotovleniya propitochnykh oligomerov [Method for producing impregnating oligomers]. Pat. RU 2446193 C1, 03/27/2012. Application No. 2010139821/05 dated 09.29.2010.
  19. Sokolova E.G., Rusakov D.S., Chubinskii A.N., Varankina G.S., Ugryumov S.A. Evaluation of the operational characteristics of modified synthetic resins and plywood on their basis. Polymer Science, Series D, 2021, t. 14, no. 2, pp. 164–168.
  20. Azarov V.I., Tsvetkov V.E. Tekhnologiya svyazuyushchikh i polimernykh materialov [Technology of binders and polymer materials]. Moscow: Lesnaya prom, 1985, 216 p.
  21. Pas’ko Yu.V. Uchebno-metodicheskoe posobie tekhnologiya i primenenie polimerov v derevoobrabotke [Educational and methodological manual technology and application of polymers in woodworking]. Moscow: MGUL, 2015, 36 p.
  22. Ekimova M.Yu., Tsvetkov V.E., Machneva O.P. Aminoformal’degidnye oligomery, modifitsirovannye solyami polifunktsional’nykh kislot [Amino-formaldehyde oligomers modified with salts of polyfunctional acids]. Klei. Germetiki. Tekhnologii [Adhesives. Sealants. Technologies], 2020, no. 6, pp. 37–40.
  23. Tsvetkov V.E., Zueva M.Yu., Machneva O.P., Razuvaeva M.V., Ekimova I.A., Ekimov N.Yu., Balyukov V.V., Fakhretdinov Kh.A., Karpova T.N. Sposob izgotovleniya karbamidoformal’degidnogo oligomera [Method for producing urea-formaldehyde oligomer]. Pat. RU 2534550 C1, 11/27/2014. Application No. 2013119174/05 dated 04/25/2013.
  24. Tsvetkov V.E., Zueva M.Yu., Machneva O.P., Razuvaeva M.V., Ekimova I.A., Ekimov N.Yu., Balyukov V.V., Fakhretdinov Kh.A. Sposob izgotovleniya propitochnykh oligomerov [Method for producing impregnating oligomers]. Pat. RU 2535226 C1, 12/10/2014. Application No. 2013119171/05 dated 04/25/2013.
  25. GOST 10633–78 Plity drevesnostruzhechnye. Metody ispytaniya [Particle boards. Test methods. Instead of GOST 10633–73]. Enter. 01/01/80 to 01/01/90. Moscow: Publishing house of standards, 1988, 5 p.
  26. Ekimova M.Yu. Aminoformal’degidnye smoly v proizvodstve oblitsovannykh drevesno-struzhechnykh plit [Amino-formaldehyde resins in the production of veneered particle boards]. Ufa: Aeterna, 2023, 128 p.
  27. Tsvetkov V.E. Uchebno-metodicheskoe posobie tekhnologiya i primenenie polimerov v derevoobrabotke [Educational and methodological manual technology and application of polymers in woodworking]. Moscow: MGUL, 2015, 36 p.
  28. GOST R 52078–2003 Plity drevesnostruzhechnye, oblitsovannye plenkami na osnove termoreaktivnykh polimerov [Particle boards lined with films based on thermosetting polymers. Technical conditions]. Moscow: Standards Publishing House, 2003, 18 p.
  29. GOST 10634–88 Plity drevesnostruzhechnye. Metody ispytaniya [Particle boards. Test methods]. Instead of GOST 10634–78. Enter. 01/01/90 to 01/01/95. Moscow: Publishing house of standards, 1989, 5 p.
  30. GOST 10635–88 Plity drevesnostruzhechnye. Metody opredeleniya predela prochnosti i modulya uprugosti pri izgibe [Particle boards. Methods for determining the tensile strength and elastic modulus in bending]. Instead of GOST 10635–78; Enter. 01/01/90 to 01/01/95. Moscow: Publishing house of standards, 1989, 5 p.
  31. GOST 10636–90 Plity drevesnostruzhechnye. Metod opredeleniya predela prochnosti pri rastyazhenii perpendikulyarno plasti plity [Particle boards. Method for determining the tensile strength perpendicular to the plate face]. Instead of GOST 10636–78. Enter. 01/01/91 to 01/01/96. Moscow: Standards Publishing House, 1990, 6 p.
  32. Satsura V.M., Bazhenov V.A., Karasev E.I., Makharadze N.I. Nagrevatel’naya plita dlya izgotovleniya drevesnostruzhechnykh plit [Heating plate for the production of particle boards]. A.S. SU 683909 A1, 09/05/1979. Application No. 2596064 dated March 30, 1978.
  33. Tsvetkov V.E., Machneva O.P., Ekimova M.Y. Obtaining lined environmentally friendly wood-based panels. J. of Physics: Conference Series. Сер. Advances in Composites Science and Technologies 2020, ACST 2020, v. 2021, p. 012073.
  34. Machneva O.P., Tsvetkov V.E., Ekimova M.Yu. Mnogoatomnye spirty kak modifikatory karbamidoformal’degidnykh smol [Polyhydric alcohols as modifiers of urea-formaldehyde resins]. Klei. Germetiki. Tekhnologii [Adhesives. Sealants. Technologies], 2018, no. 12, pp. 15–18.
  35. Kocheva M.N., Tsygarova M.V. Issledovanie faktorov, vliyayushchikh na kachestvo poverkhnosti drevesnostruzhechnykh plit po defektam v OOO Promyshlennyy kombinat drevesnykh plit [Study of factors influencing the quality of the surface of particle boards based on defects in LLC Industrial Plant of Wood Boards]. Aktual’nye problemy razvitiya lesnogo kompleksa: mater. Mezhdunarodnoy nauchno-tekhnicheskoy konferentsii. Ministerstvo obrazovaniya i nauki RF, Pravitel’stvo Vologodskoy oblasti, Vologodskiy gosudarstvennyy universitet, Departament lesnogo kompleksa Vologodskoy oblasti [Current problems of the development of the forestry complex: material. International scientific and technical conference. Ministry of Education and Science of the Russian Federation, Government of the Vologda Region, Vologda State University, Department of Forestry of the Vologda Region], 2015, pp. 101–103.
  36. Tsvetkov V.E., Nikitin A.A., Semochkin Y.A., Tsvetkova N.N., Machneva O.P. Properties of composites based on melamine– formaldehyde binding agents. Polymer Science, Series D, 2022, t. 15, no. 1, pp. 49–53.

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