Experimental Studies on the Synthesis and Performance of Boron-containing High Temperature Resistant Resin Modified by Hydroxylated Tung Oil

1st International Workshop on Materials Science and Mechanical Engineering

材料科学;机械制造

Zhang, J.X.^1 ; Ren, Z.Y.^1 ; Zheng, G.^1 ; Wang, H.F.^1 ; Jiang, L.^1 ; Fu, Y.^1 ; Yang, W.Q.^2 ; He, H.H.^2

High and New Technology Research Center, Henan Academy of Sciences, Zhengzhou, China^1

School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, China^2

关键词: Benzoxazine resin;    Boron-containing;    Curing temperature;    Ethylene diamine;    High-temperature resistant;    Initial decomposition temperatures;    Polymerization reaction;    Small molecules;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/281/1/012027/pdf
DOI  :  10.1088/1757-899X/281/1/012027

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

In this work, hydroxylated tung oil (HTO) modified high temperature resistant resin containing boron and benzoxazine was synthesized. HTO and ethylenediamine was used to toughen the boron phenolic resin with specific reaction. The structure of product was studied by Fourier-transform infrared spectroscopy(FTIR), and the heat resistance was tested by Differential Scanning Calorimetry (DSC) and Thermogravimetric Analysis(TGA). The results indicated that the conjugated triene structure of HTO was involved in the crosslinking of the heating curing progress, and in addition, the open-loop polymerization reaction of benzoxazine resin during heating can effectively reduce the curing temperature of the resin and reduce the release of small molecule volatiles, which is advantageous to follow-up processing. DSC data showed that the initial decomposition temperature of the resin is 350-400 °C, the carbon residue rate under 800 °C was 65%. It indicated that the resin has better heat resistance than normal boron phenolic resin. The resin can be used as an excellent ablative material and anti-friction material and has a huge application market in many fields.