| 丁冬海,杨少雨,肖国庆.含碳耐火材料酚醛树脂结合剂的研究现状与展望[J].材料导报,2017,31(11):95-100 |
| 含碳耐火材料酚醛树脂结合剂的研究现状与展望 |
| Progress in Phenolic Resin Binder for Carbon Containing Refractories |
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| DOI：10.11896/j.issn.1005-023X.2017.011.013 |
| 中文关键词: 含碳耐火材料 酚醛树脂 结合剂 催化石墨化 |
| 英文关键词: carbon containing refractories, phenolic resin, binder, catalytic graphitization |
| 基金项目:国家自然科学基金(51502236; 51572212);中国博士后基金(2016M602940XB);先进耐火材料国家重点实验室开放课题 |
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| 摘要点击次数: 2963 |
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| 中文摘要: |
| 含碳耐火材料不仅热导率较高,具有较好的抗热冲击性能,而且与熔渣不润湿,具有良好的抗侵蚀性能,因此大量生产并在冶金工业中广泛应用。酚醛树脂因具有与石墨润湿、残碳率高、环境友好、结合强度较高的特点而广泛用作含碳耐火材料结合剂。然而,酚醛树脂热解碳为脆性的非晶结构,不仅在应力作用下易脆性断裂,而且在高温下容易氧化。很多研究致力于酚醛树脂的化学改性。为提高酚醛热解碳的抗氧化性能或力学性能,提高酚醛树脂残碳率,通常添加过渡金属化合物、纳米碳、半导体陶瓷作为催化剂以提高热解碳的有序度,或者在其酚醛树脂热解碳基体中生成具有较高石墨化度的碳纳米管、碳纳米纤维以及SiC纳米线。 |
| 英文摘要: |
| Owing to high thermal conductivity for better thermal shock resistance and low wettability with slag to improve corrosion resistance, carbon containing refractories are largely and diversely produced for metallurgical processes. Phenolic resin has been widely used as binder of carbon containing refractories because of compatibility with graphite, high carbon yield, environmental friendliness, high adhesive strength. However, the pyrolytic carbon derived from phenolic resin shows amorphous structure, which is brittle and easy to oxidized at elevated temperature. Many studies focus on chemical modifications of phenolic resin. Aiming to improve the anti-oxidation or/and mechanical properties or to increase yield of phenolic-resin-derived carbon, transition metal compound, nanocarbon and semiconductive ceramic particles are frequently used as catalysts, to generate carbon nanotubes (CNTs) or carbon nanofibers (CNFs) with high degree of graphitization, as well as in-situ synthesis of SiC nanowires in phenolic-resin-derived carbon. |
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