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Method for preparing silicon dioxide/aluminum oxide composite ceramic felt by thread throwing method
The invention discloses a method for preparing a silicon dioxide/aluminum oxide multiphase ceramic felt by a thread throwing method, and relates to a method for preparing a multiphase ceramic felt. The invention aims to solve the problems of low strength and complex process of ceramic fibers. The method comprises the following steps: adding polyvinyl alcohol (PVA) into deionized water, dissolving to obtain a SiO2/Al2O3 precursor solution, adding tetraethoxysilane (TEOS), phosphoric acid and AlCl3. 6H2O into the SiO2/Al2O3 precursor solution to obtain a silicon dioxide/aluminum oxide multiphase ceramic precursor solution, performing thread throwing to prepare a silicon dioxide/aluminum oxide multiphase ceramic felt, performing freeze drying, and performing high-temperature calcination. The SiO2/Al2O3 composite ceramic felt obtained through the thread throwing technology has the advantages of being light in weight, excellent in mechanical property, good in heat insulation performance and the like, and more importantly, the material is simple in production technology, low in cost and good in shape controllability. The method is suitable for preparing the ceramic felt.
一种甩丝法制备二氧化硅/氧化铝复相陶瓷毡的方法，涉及一种制备复相陶瓷毡的方法。目的是解决陶瓷纤维的强度低和工艺复杂的问题。方法：将聚乙烯醇(PVA)加入到去离子水中溶解得到SiO2/Al2O3前驱液，将正硅酸乙酯(TEOS)、磷酸和AlCl3·6H2O加入到SiO2/Al2O3前驱液中得到二氧化硅/氧化铝复相陶瓷前驱液，甩丝制备二氧化硅/氧化铝复相陶瓷毡，冷冻干燥，高温煅烧。本发明通过甩丝工艺获得的SiO2/Al2O3复相陶瓷毡拥有质轻、力学性能优异、隔热性能好等优点，更重要的是这种材料生产工艺简单、成本低、形状可控性好。本发明适用于制备陶瓷毡。
Method for preparing silicon dioxide/aluminum oxide composite ceramic felt by thread throwing method
The invention discloses a method for preparing a silicon dioxide/aluminum oxide multiphase ceramic felt by a thread throwing method, and relates to a method for preparing a multiphase ceramic felt. The invention aims to solve the problems of low strength and complex process of ceramic fibers. The method comprises the following steps: adding polyvinyl alcohol (PVA) into deionized water, dissolving to obtain a SiO2/Al2O3 precursor solution, adding tetraethoxysilane (TEOS), phosphoric acid and AlCl3. 6H2O into the SiO2/Al2O3 precursor solution to obtain a silicon dioxide/aluminum oxide multiphase ceramic precursor solution, performing thread throwing to prepare a silicon dioxide/aluminum oxide multiphase ceramic felt, performing freeze drying, and performing high-temperature calcination. The SiO2/Al2O3 composite ceramic felt obtained through the thread throwing technology has the advantages of being light in weight, excellent in mechanical property, good in heat insulation performance and the like, and more importantly, the material is simple in production technology, low in cost and good in shape controllability. The method is suitable for preparing the ceramic felt.
一种甩丝法制备二氧化硅/氧化铝复相陶瓷毡的方法，涉及一种制备复相陶瓷毡的方法。目的是解决陶瓷纤维的强度低和工艺复杂的问题。方法：将聚乙烯醇(PVA)加入到去离子水中溶解得到SiO2/Al2O3前驱液，将正硅酸乙酯(TEOS)、磷酸和AlCl3·6H2O加入到SiO2/Al2O3前驱液中得到二氧化硅/氧化铝复相陶瓷前驱液，甩丝制备二氧化硅/氧化铝复相陶瓷毡，冷冻干燥，高温煅烧。本发明通过甩丝工艺获得的SiO2/Al2O3复相陶瓷毡拥有质轻、力学性能优异、隔热性能好等优点，更重要的是这种材料生产工艺简单、成本低、形状可控性好。本发明适用于制备陶瓷毡。
Method for preparing silicon dioxide/aluminum oxide composite ceramic felt by thread throwing method
一种甩丝法制备二氧化硅/氧化铝复相陶瓷毡的方法
WANG CHAO (Autor:in) / SUI CHAO (Autor:in) / HE XIAODONG (Autor:in) / ZHANG JIHENG (Autor:in) / ZHAO GUOXIN (Autor:in) / YUAN XIAOHUI (Autor:in)
01.06.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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