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Liquid SiBCNO ceramic precursor as well as preparation method and application thereof
The invention relates to a liquid SiBCNO ceramic precursor and a preparation method and application thereof, and the method comprises the following steps: dissolving a plurality of siloxane monomers and methylboronic acid in 1, 4-dioxane, carrying out stirring reaction, and carrying out rotary evaporation to remove a solvent to obtain a transparent and viscous intermediate product of the SiBCNO ceramic precursor; mixing the intermediate product with triethylamine, dropwise adding methacryloyl chloride in an ice-bath environment, carrying out an ice-bath reaction, filtering, and carrying out rotary evaporation to remove a precipitate and a solvent, so as to obtain a liquid SiBCNO ceramic precursor; according to the method disclosed by the invention, a main chain of a precursor molecule is constructed by dealcoholization condensation of a siloxane monomer and methylboronic acid, so that the generation of hydrogen chloride in a reaction process is reduced; meanwhile, the branching degree is regulated and controlled by regulating the proportion of the monomers, so that the viscosity of the precursor is regulated.
本发明涉及一种液态SiBCNO陶瓷前驱体及其制备方法和应用，其方法包括：将多种硅氧烷单体和甲基硼酸溶解于1，4‑二氧六环中，搅拌反应，旋蒸去除溶剂，得到透明粘稠的SiBCNO陶瓷前驱体的中间产物；将中间产物和三乙胺混合，并在冰浴的环境下滴加甲基丙烯酰氯，进行冰浴反应，再经过滤、旋蒸去除沉淀和溶剂，得到液态SiBCNO陶瓷前驱体。本发明方法利用硅氧烷单体和甲基硼酸脱醇缩合构建前驱体分子的主链，减少了反应过程中氯化氢的产生；同时，通过对单体比例的调节实现支化度的调控，进而实现对前驱体的粘度调节。
Liquid SiBCNO ceramic precursor as well as preparation method and application thereof
The invention relates to a liquid SiBCNO ceramic precursor and a preparation method and application thereof, and the method comprises the following steps: dissolving a plurality of siloxane monomers and methylboronic acid in 1, 4-dioxane, carrying out stirring reaction, and carrying out rotary evaporation to remove a solvent to obtain a transparent and viscous intermediate product of the SiBCNO ceramic precursor; mixing the intermediate product with triethylamine, dropwise adding methacryloyl chloride in an ice-bath environment, carrying out an ice-bath reaction, filtering, and carrying out rotary evaporation to remove a precipitate and a solvent, so as to obtain a liquid SiBCNO ceramic precursor; according to the method disclosed by the invention, a main chain of a precursor molecule is constructed by dealcoholization condensation of a siloxane monomer and methylboronic acid, so that the generation of hydrogen chloride in a reaction process is reduced; meanwhile, the branching degree is regulated and controlled by regulating the proportion of the monomers, so that the viscosity of the precursor is regulated.
本发明涉及一种液态SiBCNO陶瓷前驱体及其制备方法和应用，其方法包括：将多种硅氧烷单体和甲基硼酸溶解于1，4‑二氧六环中，搅拌反应，旋蒸去除溶剂，得到透明粘稠的SiBCNO陶瓷前驱体的中间产物；将中间产物和三乙胺混合，并在冰浴的环境下滴加甲基丙烯酰氯，进行冰浴反应，再经过滤、旋蒸去除沉淀和溶剂，得到液态SiBCNO陶瓷前驱体。本发明方法利用硅氧烷单体和甲基硼酸脱醇缩合构建前驱体分子的主链，减少了反应过程中氯化氢的产生；同时，通过对单体比例的调节实现支化度的调控，进而实现对前驱体的粘度调节。
Liquid SiBCNO ceramic precursor as well as preparation method and application thereof
一种液态SiBCNO陶瓷前驱体及其制备方法和应用
XING RUIZHE (author) / KONG JIE (author) / XU GUOXUAN (author) / LIU YONGSHENG (author) / LIU YEKUN (author)
2024-08-23
Patent
Electronic Resource
Chinese
IPC:
C08G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
/
B33Y
ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
,
Additive (generative) Fertigung, d. h. die Herstellung von dreidimensionalen [3D] Bauteilen durch additive Abscheidung, additive Agglomeration oder additive Schichtung, z. B. durch 3D- Drucken, Stereolithografie oder selektives Lasersintern
/
C04B
Kalk
,
LIME
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