[1] Moubarik, A., Mansouri, H.R., and Pizzi, A., 2013. Improving UF particleboard adhesives water resistance by small albumin and sunflower oil additions. Holz Roh Werckst 71: 277-279.
[2] Lubis, MAR., Park, B.D., and Lee, S.M., 2017. Modification of urea-formaldehyde resin adhesives with blocked isocyanates using sodium bisulfite. International Journal of Adhesion and Adhesive 73: 118-124.
[3] Younesi-Kordkheili, H., and Pizzi, A., 2017. Improving Physical and Mechanical Properties of New Lignin- Urea- Glyoxal Resin by Nanoclay. Holz Roh Werckst 75: 885-891.
[4] Xing, C., Zhang, S.Y., Deng, J., and Wang, S., 2007. Urea-formaldehyde-resin gel time as affected by the pH value, solid content, and catalyst. Journal of Applied Polymer Science. 103: 1566–1569.
[5] Pizzi, A., 1994. Advanced Wood Adhesives Technology; CRC Press: Boca Raton, FL, USA.
[6] Lu, Z., Wu, Q., and Mc, NS., 2000. Chemical coupling in wood fiber and polymer composites: A review of coupling agents and treatments. Wood and Fiber Science. 32: 88-104.
[7] Gao, S., Liu, Y., Wang, C., Chu, F., Xu, F., and Zhang, D., 2020. Synthesis of Lignin- Based Polyacid Catalyst and Its Utilization to Improve Water Resistance of Urea-formaldehyde Resins. Polymers. 12: 2-12.
[8] Hu, L., Pan, H., Zhou, Y., and Zhang, M., 2011. Methods to improve lignin reactivity as a phenol substitute and as a replacement for other phenolic compounds: A brief review. Bioresources. 6:3515-3525,
[9] Sun, Q.N., H.S.E Cy., and Shupe., T.F., 2014. Effect of different catalysts on urea-formaldehyde resin synthesis. Journal of Applied Polymer. 131: 1-7.
[10] Fan, D., Li, J., and Chang, J., 2009. On the structure and cure acceleration of phenol–urea-formaldehyde resins with different catalysts. European Polymer Journal. 45: 2849-2857.
[11] Younesi-Kordkheili, H., 2015. Reduction of Formaldehyde Emission from Particleboard by Phenolated Kraft Lignin. Journal of Adhesion. 92:150527102921008.
[12] Younesi-Kordkheili, H., and Pizzi, A., 2016. Acid Ionic Liquids as a New Hardener in Urea-Glyoxal Adhesive Resins. Polymers. 8: 1-14.
[13] Younesi-Kordkheili, H., and Pizzi, A., 2017. Ionic Liquids as Enhancers of Urea-Glyoxal Panel Adhesives as Substitutes for Urea-Formaldehyde Resins. Holz Roh Werckst. 75: 481-483.
[14] Sackey, E., Semple, K.E., Oh, SW., and Smith, G.D., 2008. Improving core bond strength of particleboard through particle size redistribution. Wood and fiber science: Journal Society of Wood Science and Technology. 40:214-224.
[15] Kardos, J.L., Dudu, K., and Dave, R. 1986. Void growth and resin transport during the processing of thermosetting—Matrix composites. Advanced Polymer Science. 80: 101–123.
[16] Cui, H.W., and Du, G.B., 2013. Development of a novel polyvinyl acetate type emulsion curing agent for urea Formaldehyde resin. Wood Science and Technology. 47: 105–119.