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The invention relates to the field of refractory materials, in particular to a high-strength refractory material based on ceramic micro powder and a preparation method thereof.Waste sanitary porcelain serves as a raw material, nanometer aluminum oxide and submicron aluminum nitride are introduced to serve as coating materials, carbon thermal nitridation, oxidation and other processes are introduced, a core-shell structure is formed, and AlON powder is formed on the waste sanitary porcelain; the composite ceramic micro powder is treated with citric acid and phenolic resin, and a phenolic resin coating layer is formed on AlON in situ through adsorption and polymerization; silica powder, corundum powder, mullite powder and alumina powder are mixed to serve as auxiliaries, and rare earth modified corundum-mullite ceramic is formed; nano silicon oxide is introduced into the refractory material in the form of silica sol and plays a role in partially replacing a binder, and a lanthanum-zirconium bimetal organic framework is adopted to modify the silica sol, so that the refractory material is kept uniform, and the cracking resistance of the refractory material is improved.
本发明涉及耐火材料领域，具体是一种基于陶瓷微粉的高强度耐火材料及其制备方法，以废卫生瓷为原料，引入纳米氧化铝和亚微米级氮化铝为包覆料，引入碳热氮化、氧化等工艺，形成核‑壳结构，在废卫生瓷上形成AlON粉体；对复合陶瓷微粉用柠檬酸、酚醛树脂处理，通过吸附和聚合在AlON上原位形成酚醛树脂包覆层；将硅微粉、刚玉粉、莫来石粉、氧化铝粉混合作为助剂，形成稀土改性刚玉‑莫来石陶瓷；以硅溶胶的形式在耐火材料里面引入纳米氧化硅并起到部分替代粘结剂的作用，采用镧锆双金属有机框架对硅溶胶进行改性处理，使耐火材料保持均一性，从而提高耐火材料的抗开裂性。
The invention relates to the field of refractory materials, in particular to a high-strength refractory material based on ceramic micro powder and a preparation method thereof.Waste sanitary porcelain serves as a raw material, nanometer aluminum oxide and submicron aluminum nitride are introduced to serve as coating materials, carbon thermal nitridation, oxidation and other processes are introduced, a core-shell structure is formed, and AlON powder is formed on the waste sanitary porcelain; the composite ceramic micro powder is treated with citric acid and phenolic resin, and a phenolic resin coating layer is formed on AlON in situ through adsorption and polymerization; silica powder, corundum powder, mullite powder and alumina powder are mixed to serve as auxiliaries, and rare earth modified corundum-mullite ceramic is formed; nano silicon oxide is introduced into the refractory material in the form of silica sol and plays a role in partially replacing a binder, and a lanthanum-zirconium bimetal organic framework is adopted to modify the silica sol, so that the refractory material is kept uniform, and the cracking resistance of the refractory material is improved.
本发明涉及耐火材料领域，具体是一种基于陶瓷微粉的高强度耐火材料及其制备方法，以废卫生瓷为原料，引入纳米氧化铝和亚微米级氮化铝为包覆料，引入碳热氮化、氧化等工艺，形成核‑壳结构，在废卫生瓷上形成AlON粉体；对复合陶瓷微粉用柠檬酸、酚醛树脂处理，通过吸附和聚合在AlON上原位形成酚醛树脂包覆层；将硅微粉、刚玉粉、莫来石粉、氧化铝粉混合作为助剂，形成稀土改性刚玉‑莫来石陶瓷；以硅溶胶的形式在耐火材料里面引入纳米氧化硅并起到部分替代粘结剂的作用，采用镧锆双金属有机框架对硅溶胶进行改性处理，使耐火材料保持均一性，从而提高耐火材料的抗开裂性。
High-strength refractory material based on ceramic micro powder and preparation method of high-strength refractory material
一种基于陶瓷微粉的高强度耐火材料及其制备方法
ZHAO MING (author)
2023-12-15
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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