Abstract
In this paper, we discuss the effects of a nanometer silicon dioxide (nano-SiO2) coupling agent, dispersal methods and the amount of nano-SiO2/urea formaldehyde resin. The results of our study indicate that when nano-SiO2, using KH-550 silane as a coupling agent, was added to UF resin by discontinuous ultrasonic vibration, its properties improved effectively. When the content of nano-SiO2 was below 1.5%, the amount of free formaldehyde decreased, and the viscosity and bonding strength of resin increased with an increase in the added nano-SiO2, which did not prolong the curing time. The performance indices of plywood, particleboard and medium density fiberboard (MDF), hot-pressed by nano-SiO2 (1%)/UF resin (F/U molar ratio=1.2), exceeded the requirements of the National Standard. Their free formaldehyde emission reached E1 grade. Finally, we analyzed the mechanism of the strengthening effects of nano-SiO2 on UF resin by means of infrared spectrum analysis and X-ray photoelectronic spectrum (XPS).
Similar content being viewed by others
References
Cao M.-S., Guan C.-B. and Xu J.-Q., Introduction of Nano-material, Harbin: Harbin Institute of Technology Press, 2001, 5–23 [曹茂盛, 关长斌, 徐甲强, 纳米材料导论, 哈尔滨: 哈尔滨工业大学出版社, 2001, 5–23]
Du G.-B., Application of mineral filler of urea formaldehyde resin as plywood adhesive, China Adhes., 1995, 4(1): 39–42 [杜官本, 胶合板用脲醛树脂矿物填料的应用, 中国胶粘剂, 1995, 4(1): 39–42]
Gu J.-Y., Adhesive and Coating, Beijing: China Forestry publishing House, 1999, 48–77 [顾继友, 胶粘剂与涂料, 北京: 中国林业出版社, 1999, 48–77]
Levendis D., The correlation of strength and formaldehyde emission with the crystalline amorphous structure of UF resin, Holzforschung, 1992, 46(3): 263–269
Liang L., Application of hardener and filler of urea formaldehyde resin adhesive, Mod. Chem. Ind., 1996, (1): 49–50 [梁亮, 脲醛树脂胶粘剂用固化剂及填料的应用, 现代化工, 1996, (1): 49–50]
Moulder J.-F., Stickle W.-F. and Sobol P.-E., Handbook of X-ray Photoelectron Spectroscopy, USA: Physical Electronics Pub., 1995, 216–239
Pampach R. and Haberkc K., Ceramic Powders, Amsterdam: Elsevier Scientific Pub., 1983, 623
Tang X.-H., Wood Adhesive, Beijing: Chemical Industry Press, 2002, 1–12 [唐星华, 木材用胶粘剂, 北京: 化学工业出版社, 2002, 1–12]
Wang S.-M., Xu Z.-X. and Fu J., Preparation Technology of Nano-materials, Beijing: Chemical Industry Press, 2002, 130–144 [王世敏, 许祖勋, 傅晶, 纳米材料制备技术, 北京: 化学工业出版社, 2002, 130–144]
Wang Z.-X., Infrared Spectrum Analysis and Assaying of Polymers, Sichuan: Sichuan University Press, 1989, 176–178, 273 [王正熙, 聚合物红外光谱分析和鉴定, 四川: 四川大学出版社, 1989, 176–178, 273]
Wu G., Token and Application of Material Structure, Beijing: Chemical Industry Press, 2002, 347–393 [吴刚, 材料结构表征及应用, 北京: 化学工业出版社, 2002, 347–393]
Xu G.-C. and Zhang L.-D., Nano Composite Material, Beijing: Chemical Industry Press, 2002, 1–24, 115–132 [徐国材, 张立德, 纳米复合材料, 北京: 化学工业出版社, 2002, 1–24, 115–132]
Yang G.-D., Lin Q.-J. and Liu J.-H., Study on the urea formaldehyde resin modified by nano-SiO2, Wood Ind., 2004a, 18(3): 7–9 [杨桂娣, 林巧佳, 刘景宏, 纳米SiO2改性脲醛树脂的研究, 木材工业, 2004, 18(3): 7–9]
Yang G.-D., Lin Q.-J. and Liu J.-H., The effects of nano-SiO2 on the properties of the urea formaldehyde resin, J. Fujian For. Coll., 2004b, 24(2): 114–117 [杨桂娣, 林巧佳, 刘景宏, 纳米二氧化硅对脲醛树脂胶性能的影响, 福建林学院学报, 2004, 24(2): 114–117
Author information
Authors and Affiliations
Additional information
__________
Translated from Scientia Silvae Sinicae, 2005, 41(2) [译自: 林业科学, 2005, 41(2)]
About this article
Cite this article
Lin, Q., Yang, G., Liu, J. et al. Property of nano-SiO2/urea formaldehyde resin. Front. Forest. China 1, 230–237 (2006). https://doi.org/10.1007/s11461-006-0024-6
Issue Date:
DOI: https://doi.org/10.1007/s11461-006-0024-6