Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
SiBCN ceramic precursor with low viscosity and high ceramic yield as well as preparation method and application of SiBCN ceramic precursor
The invention provides a SiBCN ceramic precursor with low viscosity and high ceramic yield as well as a preparation method and application of the SiBCN ceramic precursor. The SiBCN ceramic precursor contains silicon, boron, carbon and nitrogen elements; the SiBCN ceramic precursor does not contain an organic solvent, and the viscosity of the SiBCN ceramic precursor is less than or equal to 20mPa. S; according to the SiBCN ceramic precursor provided by the invention, excellent performances such as high thermal stability and high oxidation resistance of a SiBCN ceramic product can be maintained, and meanwhile, the processing property of the SiBCN ceramic precursor is emphatically improved, so that infiltration and sealing of a micro-nano porous material can be realized. The SiBCN ceramic precursor with extremely low viscosity and capable of being subjected to addition curing provided by the invention can realize impregnation and infiltration of micro-nano holes and other conventional precursors on the surface of a composite material which cannot fill the holes, and vinyl addition curing is initiated by heating, so that the impregnated and infiltrated precursor is retained in situ in the holes, and the impregnation and sealing effects can be greatly improved by virtue of the characteristics.
本发明提供了一种低粘度、高陶瓷产率的SiBCN陶瓷前驱体及其制备方法和用途。所述SiBCN陶瓷前驱体中含有硅、硼、碳和氮元素；所述SiBCN陶瓷前驱体内不含有机溶剂且粘度≤20mPa·s；本发明提出的SiBCN陶瓷前驱体能够在保持SiBCN陶瓷产物高热稳定性、高抗氧化性等优异性能的同时，重点提升了SiBCN陶瓷前驱体的工艺性能，以便实现对微纳多孔材料的浸润和封严。本发明提供的极低粘度的、可加成固化的SiBCN陶瓷前驱体能够实现对复合材料表面微纳孔等常规前驱体无法填满孔洞的浸渍渗入，并通过加热引发乙烯基加成固化，使浸渍渗入前驱体在孔洞中原位保留，以上特点可大幅提高浸渍和封严效果。
SiBCN ceramic precursor with low viscosity and high ceramic yield as well as preparation method and application of SiBCN ceramic precursor
The invention provides a SiBCN ceramic precursor with low viscosity and high ceramic yield as well as a preparation method and application of the SiBCN ceramic precursor. The SiBCN ceramic precursor contains silicon, boron, carbon and nitrogen elements; the SiBCN ceramic precursor does not contain an organic solvent, and the viscosity of the SiBCN ceramic precursor is less than or equal to 20mPa. S; according to the SiBCN ceramic precursor provided by the invention, excellent performances such as high thermal stability and high oxidation resistance of a SiBCN ceramic product can be maintained, and meanwhile, the processing property of the SiBCN ceramic precursor is emphatically improved, so that infiltration and sealing of a micro-nano porous material can be realized. The SiBCN ceramic precursor with extremely low viscosity and capable of being subjected to addition curing provided by the invention can realize impregnation and infiltration of micro-nano holes and other conventional precursors on the surface of a composite material which cannot fill the holes, and vinyl addition curing is initiated by heating, so that the impregnated and infiltrated precursor is retained in situ in the holes, and the impregnation and sealing effects can be greatly improved by virtue of the characteristics.
本发明提供了一种低粘度、高陶瓷产率的SiBCN陶瓷前驱体及其制备方法和用途。所述SiBCN陶瓷前驱体中含有硅、硼、碳和氮元素；所述SiBCN陶瓷前驱体内不含有机溶剂且粘度≤20mPa·s；本发明提出的SiBCN陶瓷前驱体能够在保持SiBCN陶瓷产物高热稳定性、高抗氧化性等优异性能的同时，重点提升了SiBCN陶瓷前驱体的工艺性能，以便实现对微纳多孔材料的浸润和封严。本发明提供的极低粘度的、可加成固化的SiBCN陶瓷前驱体能够实现对复合材料表面微纳孔等常规前驱体无法填满孔洞的浸渍渗入，并通过加热引发乙烯基加成固化，使浸渍渗入前驱体在孔洞中原位保留，以上特点可大幅提高浸渍和封严效果。
SiBCN ceramic precursor with low viscosity and high ceramic yield as well as preparation method and application of SiBCN ceramic precursor
一种低粘度、高陶瓷产率的SiBCN陶瓷前驱体及其制备方法和用途
HAN WEIJIAN (Autor:in) / YE LI (Autor:in) / CHEN FENGHUA (Autor:in) / DUAN MENGTAO (Autor:in) / ZHANG YONGQING (Autor:in) / WANG PENG (Autor:in) / ZHAO AIJUN (Autor:in) / ZHAO TONG (Autor:in)
10.11.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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