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Silicon carbide micro-powder for silicon carbide fine ceramics, and preparation method thereof
The invention discloses a silicon carbide micro-powder for silicon carbide fine ceramics, and a preparation method thereof. The silicon carbide micro-powder is prepared from, by weight, 10 to 20 partsof water-soluble phenolic resin, 6 to 10 parts of tetraethoxysilane, 0.6 to 0.8 part of p-toluenesulfonyl chloride, 6 to 8 parts of an acid solution, 3 to 5 parts of an alkaline solution and 0.1 to 0.3 part of catalyst. The invention relates to the technical field of silicon carbide micro-powder preparation. The preparation method comprises the following steps: mixing the water-soluble phenolic resin and tetraethoxysilane, stirring the obtained mixed solution by using a centrifugal stirrer at a stirring rate of 800 r/min for 30 minutes, and adding a catalyst hydrochloric acid solution into the mixed solution while stirring the solution. By adopting the process to prepare the silicon carbide micro-powder, the prepared silicon carbide micro-powder is high in purity, the solid phase contentof the silicon carbide micro-powder is relatively high when the silicon carbide micro-powder is used for preparing silicon carbide slurry, the use quality of the silicon carbide micro-powder is relatively high, and the quality of produced ceramic is relatively good.
本发明公开了一种碳化硅精细陶瓷用碳化硅微粉及其制备方法，其原料组成按重量份比包括：水溶性酚醛树脂10‑20份、正硅酸乙酯6‑10份、对甲苯磺酰氯0.6‑0.8份、酸溶液6‑8份、碱溶液3‑5份和催化剂0.1‑0.3份，本发明涉及碳化硅微粉制备技术领域。该碳化硅精细陶瓷用碳化硅微粉及其制备方法，通过水溶性酚醛树脂和正硅酸乙酯进行混合，对混合溶液利用离心搅拌机进行搅拌，搅拌速率为800r/min，搅拌时间为30分钟，在溶液进行搅拌的同时向混合溶液中加入催化剂盐酸溶液，采用该工艺进行碳化硅微粉的制备，制备出来的碳化硅微粉不仅纯度高，而且碳化硅微粉在进行碳化硅浆料制备的时候固相含量也较高，碳化硅微粉所使用质量较高，生产出来的陶瓷质量更好。
Silicon carbide micro-powder for silicon carbide fine ceramics, and preparation method thereof
The invention discloses a silicon carbide micro-powder for silicon carbide fine ceramics, and a preparation method thereof. The silicon carbide micro-powder is prepared from, by weight, 10 to 20 partsof water-soluble phenolic resin, 6 to 10 parts of tetraethoxysilane, 0.6 to 0.8 part of p-toluenesulfonyl chloride, 6 to 8 parts of an acid solution, 3 to 5 parts of an alkaline solution and 0.1 to 0.3 part of catalyst. The invention relates to the technical field of silicon carbide micro-powder preparation. The preparation method comprises the following steps: mixing the water-soluble phenolic resin and tetraethoxysilane, stirring the obtained mixed solution by using a centrifugal stirrer at a stirring rate of 800 r/min for 30 minutes, and adding a catalyst hydrochloric acid solution into the mixed solution while stirring the solution. By adopting the process to prepare the silicon carbide micro-powder, the prepared silicon carbide micro-powder is high in purity, the solid phase contentof the silicon carbide micro-powder is relatively high when the silicon carbide micro-powder is used for preparing silicon carbide slurry, the use quality of the silicon carbide micro-powder is relatively high, and the quality of produced ceramic is relatively good.
本发明公开了一种碳化硅精细陶瓷用碳化硅微粉及其制备方法，其原料组成按重量份比包括：水溶性酚醛树脂10‑20份、正硅酸乙酯6‑10份、对甲苯磺酰氯0.6‑0.8份、酸溶液6‑8份、碱溶液3‑5份和催化剂0.1‑0.3份，本发明涉及碳化硅微粉制备技术领域。该碳化硅精细陶瓷用碳化硅微粉及其制备方法，通过水溶性酚醛树脂和正硅酸乙酯进行混合，对混合溶液利用离心搅拌机进行搅拌，搅拌速率为800r/min，搅拌时间为30分钟，在溶液进行搅拌的同时向混合溶液中加入催化剂盐酸溶液，采用该工艺进行碳化硅微粉的制备，制备出来的碳化硅微粉不仅纯度高，而且碳化硅微粉在进行碳化硅浆料制备的时候固相含量也较高，碳化硅微粉所使用质量较高，生产出来的陶瓷质量更好。
Silicon carbide micro-powder for silicon carbide fine ceramics, and preparation method thereof
一种碳化硅精细陶瓷用碳化硅微粉及其制备方法
LIU JUN (Autor:in) / CAI LU (Autor:in) / LIU BO (Autor:in) / WANG GANG (Autor:in) / WANG GUOXIONG (Autor:in) / ZHANG HAIBO (Autor:in)
01.09.2020
Patent
Elektronische Ressource
Chinesisch
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| Europäisches Patentamt | 2020