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| 镁碳砖用纳米SiO_2改性酚醛树脂的研究 | |
| 引用本文： | 廖庆玲,李轩科,雷中兴,左小华,袁观明.镁碳砖用纳米SiO_2改性酚醛树脂的研究[J].化工技术与开发,2009,38(9):15-18. |
| 作者姓名： | 廖庆玲 李轩科 雷中兴 左小华 袁观明 |
| 作者单位： | 1. 中南民族大学工商学院,湖北,武汉,430071 2. 武汉科技大学高温陶瓷与耐火材料湖北省重点实验室,湖北,武汉,430081 3. 武钢耐火材料有限责任公司,湖北,武汉,430082 4. 黄石理工学院化学与材料工程学院,湖北,黄石,435003 |
| 摘 要： | 采用有机硅溶胶-凝胶法原位生成纳米SiO2粒子合成了改性酚醛树脂,并利用IR和TG-DTA对纳米SiO2改性酚醛树脂进行结构和热分析.结果表明,有机硅改性剂与酚醛树脂间发生了相互作用,降低了酚羟基的相对含量,并在酚醛树脂分子链上引入了杂原子Si,改善了酚醛树脂的抗氧化性和热稳定性.采用纳米SiO2改性酚醛树脂替代传统的酚醛树脂作为镁碳砖的结合剂,可以有效地降低镁碳砖显气孔率,提高体积密度,明显增加常温耐压强度. |
| 关 键 词： | 镁碳砖 纳米SiO2 改性 酚醛树脂 结合剂 |
Nano-Silica Modified Phenolic Resin for Magnesite-carbon Brick Binder |
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| LIAO Qing-ling,LI Xuan-ke,LEI Zhong-xing,ZUO Xiao-hua,YUAN Guan-ming.Nano-Silica Modified Phenolic Resin for Magnesite-carbon Brick Binder[J].Technology & Development of Chemical Industry,2009,38(9):15-18. | |
| Authors: | LIAO Qing-ling LI Xuan-ke LEI Zhong-xing ZUO Xiao-hua YUAN Guan-ming |
| Affiliation: | LIAO Qing-ling1,LI Xuan-ke2,LEI Zhong-xing3,ZUO Xiao-hua4,YUAN Guan-ming2 (1.South-central University For Nationalities Business College,Wuhan 430071,China,2.Hubei Province Key Laboratory of Ceramics and Refractories,Wuhan University of Sci.& Tech.,Wuhan 430081,3.Wugang Refractory Co.,Ltd.,WISCO,Wuhan 430082,4.School of Chemistry & Materials Engineering,Huangshi Institute of Technology,Huangshi 435003,China) |
| Abstract: | The modified phenolic resin was synthesized by sol-gel process using in-situ formed nanosized silica.The improved phenolic resin was characterized by IR and TG-DTA analyses.The results showed that the interaction between SiO2 nanoparticles and phenolic resin led to the decrease of concentration of phenolic hydroxyl groups,and introduced the impurity atom Si to the phenolic resin molecule chain,which promoted the heat resistance and stability of phenolic resin.The physicochemical property analyses showed tha... |
| Keywords: | magnesite-carbon brick SiO2 nanoparticles modified phenolic reisn binder |
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