YANG Gui-di~1, LIN Qiao-jia~2, LIU Jing-hong~2. Study on Using Nanometer SiO2 for Modifying UF Resin. [J]. China Wood Industry (3):7-9(2004) DOI: 10.19455/j.mcgy.2004.03.003.
Study on Using Nanometer SiO2 for Modifying UF Resin
The authors used nanometer SiO,2, (nano-SiO,2,), incorporated with silane coupling agent, to modify UF resin in order to improve the bond strength and decrease the free formaldehyde content of the resin. In this article, the effects of nano-SiO,2, content, coupling agent and dispersing methods on properties of the UF resin, such as viscosity, free formaldehyde content and bond strength, were analyzed and discussed. The test results indicated that 1% nano-SiO,2, (No. HTSi-04) added to UF resin and mechanically blended provided the best results. Among the 3 kinds of coupling agents, KH-550 ranked first followed by KH-792 and KH-570.