STUDY OF THE CHANGES IN RHEOLOGICAL AND ADHESIVE PROPERTIES THROUGH THE MODIFICATION OF LIQUID GLASS
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This paper discusses the development of a modified, environmentally safe adhesive based on liquid glass (sodium silicate Na₂O·nSiO₂) with enhanced adhesion efficiency to wood. The sodium silicate used fully complies with the requirements of GOST 13078–81 and TU 6-18-003-87, with a silicate modulus of 2.6–2.8 and a solid residue content of 31–33%. An oligomer based on thiourea and glycerol was used as a modifier. The experiments were carried out by mixing the modifier with liquid glass in various mass ratios (5%, 10%, 15%). The experimental results showed that the modification process significantly improved the rheological and mechanical properties of the adhesive. At the optimal 10% modifier content, the adhesion strength increased from 2.28 MPa to 3.15 MPa (an increase of 27.6%), while water resistance rose from 62% to 82%. The viscosity was approximately 230 mPa·s, which fully meets the industrial range specified in GOST 13078–81 (200–250 mPa·s). The resulting modified adhesive does not release formaldehyde, is non-toxic, and environmentally safe, providing high adhesion and water resistance for wood bonding. The obtained results form a scientific and practical basis for expanding the use of modified sodium silicate-based adhesives in woodworking, construction, and furniture industries.
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[1] Potin, P., & Leblanc, C. (2006). Phenolic-based adhesives of marine brown algae. In A. M. Smith & J. A. Callow (Eds.), Biological adhesives (pp. 105–119). Springer. DOI: https://doi.org/10.1007/978-3-540-31049-5_6
[2] Rowell, R. M. (2005). Handbook of wood chemistry and wood composites (pp. 253–261). CRC Press. DOI: https://doi.org/10.1201/9780203492437
[3] Mamiński, M. Ł., Król, M. E., Grabowska, M., & Głuszyński, P. (2011). Simple urea–glutaraldehyde mix used as a formaldehyde-free adhesive: Effect of blending with nano-Al₂O₃. European Journal of Wood and Wood Products, 69(3), 505–506. DOI: https://doi.org/10.1007/s00107-010-0482-2
[4] Tohmura, S. I., Hse, C. Y., & Higuchi, M. (2000). Formaldehyde emission and high-temperature stability of cured urea–formaldehyde resins. Journal of Wood Science, 46(4), 303–309. DOI: https://doi.org/10.1007/BF00766221
[5] Weimer, P. J., Conner, A. H., & Lorenz, L. F. (2003). Solid residues from Ruminococcus cellulose fermentations as components of wood adhesive formulations. Applied Microbiology and Biotechnology, 63(1), 29–34. DOI: https://doi.org/10.1007/s00253-003-1334-3
[6] Moubarik, A., Charrier, B., Allal, A., Charrier, F., & Pizzi, A. (2010). Development and optimization of a new formaldehyde-free cornstarch and tannin wood adhesive. European Journal of Wood and Wood Products, 68(2), 167–177. DOI: https://doi.org/10.1007/s00107-009-0357-6
[7] Yang, I., Kuo, M. L., Myers, D. J., & Pu, A. B. (2006). Comparison of protein-based adhesive resins for wood composites. Journal of Wood Science, 52(6), 503–508. DOI: https://doi.org/10.1007/s10086-006-0804-5
[8] Sarawade, P. B., Kim, J. K., Hilonga, A., Quang, D. V., & Kim, H. T. (2011). Effect of drying technique on the physicochemical properties of sodium silicate-based mesoporous precipitated silica. Applied Surface Science, 258(2), 955–961. DOI: https://doi.org/10.1016/j.apsusc.2011.09.035
[9] Torkaman, J. (2010). Improvement of bondability in rice husk particleboard made with sodium silicate. In Proceedings of the 2nd International Conference on Sustainable Construction Materials and Technologies. Ancona, Italy.
[10] Akhmedov, V., Kamolova, Z., & Olimov, B. (2024). Modification method of sodium silicate. Universum: технические науки, (3), Article 120. https://cyberleninka.ru/article/n/modification-method-of-sodium-silicate DOI: https://doi.org/10.32743/UniTech.2024.120.3.17116
[11] Liu, X., Zhang, X., Long, K., Zhu, X., Yang, J., Wu, Y., Luo, S., & Yang, S. (2012). PVA wood adhesive modified with sodium silicate cross-linked copolymer. Biobase Material Science and Engineering (BMSE 2012), 108–111. https://doi.org/10.1109/BMSE.2012.6466192 DOI: https://doi.org/10.1109/BMSE.2012.6466192
[12] Liu, P. H., Li, Z. J., & Yang, F. (2003). Research on PVA–water glass recombination of semi-IPN technique. Technological Development of Enterprise, 10, 10–12.
[13] Murodov, D. M., Akhmedov, V. N., & Niyozov, A. K. (2024). Synthesis of thiourethane oligomer based on ethylene glycol. Universum: технические науки, 10(127). https://7universum.com/ru/tech/archive/item/18410 DOI: https://doi.org/10.32743/UniTech.2024.127.10.18410
[14] Liu, X., Wu, Y., Zhang, X., & Zuo, Y. (2015). Study on the effect of organic additives and inorganic fillers on properties of sodium silicate wood adhesive modified by polyvinyl alcohol. BioResources, 10(1), 1528–1542. DOI: https://doi.org/10.15376/biores.10.1.1528-1542
[15] Yang, X. L., Wu, Y. Q., Zhang, X. M., & Liu, X. M. (n.d.). Effect of curing technology on bonding properties of silicate wood adhesive. (Qo‘lyozma / maqola tafsiloti to‘liq ko‘rsatilmagan)
[16] Zhang, X. L., Wu, Y. Q., Yang, S. L., & Liu, X. M. (2014). Effect of curing technology on bonding properties of silicate wood adhesive. Materials Research Innovations, 18(Suppl 2), S2-532–S2-536. https://doi.org/10.1179/1432891714Z.000000000478 DOI: https://doi.org/10.1179/1432891714Z.000000000478
[17] Udawatte, C. P., Yanagisawa, K., Kamakura, T., Matsumoto, Y., & Yamasaki, N. (2000). Hardening of hydrothermal hot-pressed calcium silicate compacts with rice husk as fiber reinforcement. Materials Research Innovations, 3(5), 297–301. DOI: https://doi.org/10.1007/s100190000048
[18] Fan, D. B., Chang, J. M., Li, J. Z., Xia, B. H., & Sang, Z. T. (2011). Cure properties and adhesive performances of cure-accelerated phenol–urea–formaldehyde resins. European Journal of Wood and Wood Products, 69(2), 213–220. DOI: https://doi.org/10.1007/s00107-010-0414-1