Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
HfC/C ceramic precursor polymer and preparation method thereof
The invention discloses an HfC/C ceramic precursor polymer material and a preparation method thereof. The polymer has a coordination structure of hafnium and tetramine tetraphenol, and can be pyrolyzed and converted into HfC/C ceramic at the temperature of 1600 DEG C or above, and the ceramic yield is not lower than 55 wt%. The preparation method of the polymer is characterized in that a hafnium source compound and a tetraimine tetraphenol monomer are subjected to a one-pot polymerization reaction to synthesize the polymer. The polymer precursor prepared by the method is expected to be used asa dipping matrix of a ceramic matrix composite material and an antioxidant carbon/carbon composite material so as to improve the ultrahigh-temperature oxidation resistance of the ceramic matrix composite material and the antioxidant carbon/carbon composite material.
本发明公开了一种HfC/C陶瓷前驱体聚合物材料及其制备方法。所述聚合物具有铪与四亚胺四酚的配位结构，在温度1600℃以上可热解转化为HfC/C陶瓷，其陶瓷产率不低于55wt％。所述聚合物的制备方法是将铪源化合物和四亚胺四酚单体通过一锅法聚合反应合成。本发明制备的聚合物前驱体有望用作陶瓷基复合材料及抗氧化碳/碳复合材料的浸渍基体，以提高其超高温抗氧化性能。
HfC/C ceramic precursor polymer and preparation method thereof
The invention discloses an HfC/C ceramic precursor polymer material and a preparation method thereof. The polymer has a coordination structure of hafnium and tetramine tetraphenol, and can be pyrolyzed and converted into HfC/C ceramic at the temperature of 1600 DEG C or above, and the ceramic yield is not lower than 55 wt%. The preparation method of the polymer is characterized in that a hafnium source compound and a tetraimine tetraphenol monomer are subjected to a one-pot polymerization reaction to synthesize the polymer. The polymer precursor prepared by the method is expected to be used asa dipping matrix of a ceramic matrix composite material and an antioxidant carbon/carbon composite material so as to improve the ultrahigh-temperature oxidation resistance of the ceramic matrix composite material and the antioxidant carbon/carbon composite material.
本发明公开了一种HfC/C陶瓷前驱体聚合物材料及其制备方法。所述聚合物具有铪与四亚胺四酚的配位结构，在温度1600℃以上可热解转化为HfC/C陶瓷，其陶瓷产率不低于55wt％。所述聚合物的制备方法是将铪源化合物和四亚胺四酚单体通过一锅法聚合反应合成。本发明制备的聚合物前驱体有望用作陶瓷基复合材料及抗氧化碳/碳复合材料的浸渍基体，以提高其超高温抗氧化性能。
HfC/C ceramic precursor polymer and preparation method thereof
一种HfC/C陶瓷前驱体聚合物及其制备方法
WU YUHUAN (Autor:in) / ZHAO TONG (Autor:in) / YE LI (Autor:in) / HAN WEIJIAN (Autor:in)
25.12.2020
Patent
Elektronische Ressource
Chinesisch
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