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Silicon-boron-titanium-carbon-nitrogen ceramic precursor as well as preparation method and application thereof
The invention discloses a silicon-boron-titanium-carbon-nitrogen ceramic precursor and a preparation method thereof.The method comprises the steps that in the inert atmosphere, a solvent, vinyl-containing chlorosilane, a borane complex and trimethyl substituted silazane are added into a reactor to be mixed and stirred for a reaction, and a primary polymerization product is obtained; continuing to add titanium halide into the reactor, and heating for reaction to obtain polyboron titanium silazane; and heating the polyboron titanium silazane in an inert atmosphere, and carrying out a cross-linking curing reaction to obtain the silicon boron titanium carbon nitrogen ceramic precursor. Titanium halide is adopted as a titanium source to prepare the silicon-boron-titanium-carbon-nitrogen ceramic precursor, so that the introduction efficiency of the titanium element is improved, the regulation and control range of the content of the titanium element is expanded, and uniform distribution of the titanium element on a molecular level is ensured. The preparation method is simple and low in cost. The prepared silicon-boron-titanium-carbon-nitrogen ceramic precursor is sintered, and the obtained silicon-boron-titanium-carbon-nitrogen ceramic with various elements capable of being adjusted and controlled in a wide range is wide in application prospect in the fields of aerospace and the like.
本发明公开了一种硅硼钛碳氮陶瓷先驱体及其制备方法，方法包括：惰性气氛下，将溶剂、含乙烯基的氯硅烷、硼烷络合物和三甲基取代硅氮烷加入反应器中混合搅拌，进行反应，得到初聚合产物；向反应器中继续加入卤化钛，加热进行反应，得到聚硼钛硅氮烷；惰性气氛下将聚硼钛硅氮烷加热，进行交联固化反应，得到硅硼钛碳氮陶瓷先驱体。本发明采用卤化钛为钛源，制备硅硼钛碳氮陶瓷先驱体，提升了钛元素的引入效率，扩大了钛元素含量的调控范围，保证了钛元素在分子层面的分布均匀。本发明制备方法简单、成本低。将制备的硅硼钛碳氮陶瓷先驱体进行烧结，得到的各元素可宽幅调控的硅硼钛碳氮陶瓷，在航空航天等领域应用前景广阔。
Silicon-boron-titanium-carbon-nitrogen ceramic precursor as well as preparation method and application thereof
The invention discloses a silicon-boron-titanium-carbon-nitrogen ceramic precursor and a preparation method thereof.The method comprises the steps that in the inert atmosphere, a solvent, vinyl-containing chlorosilane, a borane complex and trimethyl substituted silazane are added into a reactor to be mixed and stirred for a reaction, and a primary polymerization product is obtained; continuing to add titanium halide into the reactor, and heating for reaction to obtain polyboron titanium silazane; and heating the polyboron titanium silazane in an inert atmosphere, and carrying out a cross-linking curing reaction to obtain the silicon boron titanium carbon nitrogen ceramic precursor. Titanium halide is adopted as a titanium source to prepare the silicon-boron-titanium-carbon-nitrogen ceramic precursor, so that the introduction efficiency of the titanium element is improved, the regulation and control range of the content of the titanium element is expanded, and uniform distribution of the titanium element on a molecular level is ensured. The preparation method is simple and low in cost. The prepared silicon-boron-titanium-carbon-nitrogen ceramic precursor is sintered, and the obtained silicon-boron-titanium-carbon-nitrogen ceramic with various elements capable of being adjusted and controlled in a wide range is wide in application prospect in the fields of aerospace and the like.
本发明公开了一种硅硼钛碳氮陶瓷先驱体及其制备方法，方法包括：惰性气氛下，将溶剂、含乙烯基的氯硅烷、硼烷络合物和三甲基取代硅氮烷加入反应器中混合搅拌，进行反应，得到初聚合产物；向反应器中继续加入卤化钛，加热进行反应，得到聚硼钛硅氮烷；惰性气氛下将聚硼钛硅氮烷加热，进行交联固化反应，得到硅硼钛碳氮陶瓷先驱体。本发明采用卤化钛为钛源，制备硅硼钛碳氮陶瓷先驱体，提升了钛元素的引入效率，扩大了钛元素含量的调控范围，保证了钛元素在分子层面的分布均匀。本发明制备方法简单、成本低。将制备的硅硼钛碳氮陶瓷先驱体进行烧结，得到的各元素可宽幅调控的硅硼钛碳氮陶瓷，在航空航天等领域应用前景广阔。
Silicon-boron-titanium-carbon-nitrogen ceramic precursor as well as preparation method and application thereof
一种硅硼钛碳氮陶瓷先驱体及其制备方法和应用
SONG YUJIE (author) / ZHAO YANGZHONG (author) / LI TIANHAO (author) / WU XISHI (author) / DANG YANPEI (author) / ZHANG JIANNING (author)
2024-04-02
Patent
Electronic Resource
Chinese
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