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| 改进的酚-溴化氰法合成酚醛型氰酸酯及其表征 | |
| 引用本文： | 李文峰,梁国正,王志强,轩立新,冯青平,陈淳.改进的酚-溴化氰法合成酚醛型氰酸酯及其表征[J].航空学报,2004,25(4):406-410. |
| 作者姓名： | 李文峰 梁国正 王志强 轩立新 冯青平 陈淳 |
| 作者单位： | 1. 西北工业大学,理学院应用化学系,陕西,西安,710072 2. 济南复合材料特种结构研究所,山东,济南,250023 3. 北京玻璃钢研究设计院,北京,102101 |
| 摘 要： | 采用改进的酚-溴化氰法合成了酚醛型氰酸酯单体树脂,并用红外、凝胶实验及热失重分析(TGA)对其进行了结构和性能的表征。与传统的酚-溴化氰法相比,改进的酚-溴化氰法得到了性能稳定的合成产物,该产物在200℃时的凝胶时间为6 5min,在凝胶时无冒烟、发黑现象,固化树脂在800℃时氮气氛下的残碳率为63 6%。 |
| 关 键 词： | 酚醛型氰酸酯树脂 酚-溴化氰合成法 凝胶时间 残碳率 |
| 文章编号： | 1000-6893(2004)04-0406-05 |
| 修稿时间： | 2003年6月20日 |
Synthesis and Characterization of a Novolac Cyanate Ester Resin by a Modified Phenol-Cyanogen Bromide Method |
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| LI Wen-feng,LIANG Guo-zheng,WANG Zhi-qiang,XUAN Li-xin,FENG Qing-ping,CHEN Chun.Synthesis and Characterization of a Novolac Cyanate Ester Resin by a Modified Phenol-Cyanogen Bromide Method[J].Acta Aeronautica et Astronautica Sinica,2004,25(4):406-410. | |
| Authors: | LI Wen-feng LIANG Guo-zheng WANG Zhi-qiang XUAN Li-xin FENG Qing-ping CHEN Chun |
| Institution: | LI Wen-feng~1,LIANG Guo-zheng~1,WANG Zhi-qiang~2,XUAN Li-xin~2,FENG Qing-ping~3,CHEN Chun~3 |
| Abstract: | Novolac cyanate ester monomer is synthesized by a modified phenol-cyanogen bromide method. The product is characterized by FTIR, gel-time and TGA analysis. Compared with conventional phenol-cyanogen bromide method, the modified synthesis gives stable product. The gel time of synthesized monomer at 200℃ is 6.5min. And there is no smoke generated during testing of gel time. The char yield at 800℃ is 63.6% in N2 atmosphere. |
| Keywords: | nololac cyanate ester resin phenol-cyanogen bromide synthetic method gel time char yield |
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