| 酚醛-乙醇体系在石英纤维表面吸附行为研究 |
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| 引用本文： | 王柏臣,黄玉东,刘丽.酚醛-乙醇体系在石英纤维表面吸附行为研究[J].哈尔滨工业大学学报,2006,38(10):1661-1664. |
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| 作者姓名： | 王柏臣 黄玉东 刘丽 |
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| 作者单位： | 哈尔滨工业大学,应用化学系,哈尔滨,150001;哈尔滨工业大学,应用化学系,哈尔滨,150001;哈尔滨工业大学,应用化学系,哈尔滨,150001 |
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| 摘 要： | 采用漫反射红外光谱研究酚醛树脂-乙醇体系在石英纤维表面的竞争性吸附行为;紫外吸收光谱分析表明酚醛树脂和乙醇之间存在很强的相互作用;粘度和表面自由能测量证实作为溶剂的乙醇被优先吸附.酚醛树脂在纤维表面的吸附是溶质、溶剂和纤维表面3者之间氢键共同作用的结果,乙醇和酚醛树脂在纤维表面形成竞争性吸附,溶质-溶剂间的氢键作用不利于酚醛树脂吸附.热失重分析表明作为溶剂的乙醇被优先吸附导致树脂在一维复合材料液体成型工艺模型内部不同位置分布不均.
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| 关 键 词： | 酚醛树脂 乙醇 石英纤维 竞争性吸附 氢键 |
| 文章编号： | 0367-6234(2006)10-1661-04 |
| 收稿时间： | 2004-12-27 |
| 修稿时间： | 2004年12月27 |
Studies on competitive adsorption of phenolic resin-ethanol system on silica fiber surface |
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| WANG Bai-chen,HUANG Yu-dong,LIU Li.Studies on competitive adsorption of phenolic resin-ethanol system on silica fiber surface[J].Journal of Harbin Institute of Technology,2006,38(10):1661-1664. |
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| Authors: | WANG Bai-chen HUANG Yu-dong LIU Li |
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| Affiliation: | Dept. of Applied Chemistry, Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | The competitive adsorption of phenolic resin-ethanol system on silica fiber surface was investigated by diffuse reflectance infrared Fourier transform(DRIFT) spectroscopy;Electronic adsorption spectra indicated a strong interaction between phenolic resin and ethanol present in solution.Measurements of viscosity and surface free energy showed that ethanol was preferentially adsorb on silica fiber surface relative to phenolic resin.The observed adsorption behavior of phenolic resin from ethanol onto silica fiber is the combined function of the hydrogen bonding interactions cooperative among solute,solvent and silica fiber surface.Ethanol as solvent competes with phenolics for absorbing sites on silica fiber surface.Interaction between phenolics and ethanol adversely affected the adsorption of phenolics.Thermogravimetric analysis suggested that the preferential adsorption of ethanol as solvent from solution resulted in inhomogeneous distribution of phenolics resin in 1D liquid composite molding model. |
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| Keywords: | phenolic resin ethanol silica fiber competitive adsorption hydrogen bonding |
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