Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Three-dimensional carbon-rich nanofiber ceramic aerogel and preparation method thereof
The invention discloses a three-dimensional carbon-rich nanofiber ceramic aerogel and a preparation method thereof, and the preparation method is based on a far electric field-electrostatic spinning preparation method, and the method specifically comprises the following steps: after highly polymerized zirconium acetylacetonate powder is combined with a phase stabilizer yttrium element, introducing a silane coupling agent KH550 at the same time; co-dissolving macromolecular polyoxyethylene PEO in methanol to prepare a binary silicon-zirconium ceramic electrostatic spinning precursor with high spinnability, and then preparing and forming a binary silicon-zirconium nanofiber ceramic aerogel precursor with a three-dimensional layered structure through a far electric field-electrostatic spinning method; and finally, carrying out step-by-step high-temperature annealing crystallization heat treatment and chemical crosslinking to obtain the three-dimensional carbon-rich nanofiber ceramic aerogel with an intact shape structure. The preparation method provided by the invention has the advantages of low production cost and simple production process, and the prepared three-dimensional carbon-rich nanofiber ceramic aerogel material has high carbon content and excellent high-temperature heat insulation performance and mechanical performance.
本发明公开一种三维富碳纳米纤维陶瓷气凝胶及其制备方法，基于远电场‑静电纺丝制备方法，方法具体如下：将高度聚合的乙酰丙酮合锆粉体结合相稳定剂钇元素后，同时引入硅烷偶联剂KH550，在甲醇中共溶高分子聚氧化乙烯PEO制备具有高度可纺性的二元硅锆陶瓷静电纺丝前驱体后，通过远电场‑静电纺丝方法制备成型具有三维层状结构的二元硅锆纳米纤维陶瓷气凝胶前体，最后经过分步高温退火结晶热处理和化学交联得到形状结构完好的三维富碳纳米纤维陶瓷气凝胶。本发明涉及的制备方法具备生产成本低、生产工艺简单的优点，所制得的三维富碳纳米纤维陶瓷气凝胶材料具有较高碳含量、优异的高温隔热性能与机械性能。
Three-dimensional carbon-rich nanofiber ceramic aerogel and preparation method thereof
The invention discloses a three-dimensional carbon-rich nanofiber ceramic aerogel and a preparation method thereof, and the preparation method is based on a far electric field-electrostatic spinning preparation method, and the method specifically comprises the following steps: after highly polymerized zirconium acetylacetonate powder is combined with a phase stabilizer yttrium element, introducing a silane coupling agent KH550 at the same time; co-dissolving macromolecular polyoxyethylene PEO in methanol to prepare a binary silicon-zirconium ceramic electrostatic spinning precursor with high spinnability, and then preparing and forming a binary silicon-zirconium nanofiber ceramic aerogel precursor with a three-dimensional layered structure through a far electric field-electrostatic spinning method; and finally, carrying out step-by-step high-temperature annealing crystallization heat treatment and chemical crosslinking to obtain the three-dimensional carbon-rich nanofiber ceramic aerogel with an intact shape structure. The preparation method provided by the invention has the advantages of low production cost and simple production process, and the prepared three-dimensional carbon-rich nanofiber ceramic aerogel material has high carbon content and excellent high-temperature heat insulation performance and mechanical performance.
本发明公开一种三维富碳纳米纤维陶瓷气凝胶及其制备方法，基于远电场‑静电纺丝制备方法，方法具体如下：将高度聚合的乙酰丙酮合锆粉体结合相稳定剂钇元素后，同时引入硅烷偶联剂KH550，在甲醇中共溶高分子聚氧化乙烯PEO制备具有高度可纺性的二元硅锆陶瓷静电纺丝前驱体后，通过远电场‑静电纺丝方法制备成型具有三维层状结构的二元硅锆纳米纤维陶瓷气凝胶前体，最后经过分步高温退火结晶热处理和化学交联得到形状结构完好的三维富碳纳米纤维陶瓷气凝胶。本发明涉及的制备方法具备生产成本低、生产工艺简单的优点，所制得的三维富碳纳米纤维陶瓷气凝胶材料具有较高碳含量、优异的高温隔热性能与机械性能。
Three-dimensional carbon-rich nanofiber ceramic aerogel and preparation method thereof
一种三维富碳纳米纤维陶瓷气凝胶及其制备方法
XU XIANG (Autor:in) / LI HUI (Autor:in) / FU SHUBIN (Autor:in) / GUO JINGRAN (Autor:in) / LIU DIZHOU (Autor:in)
01.02.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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