Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing PDC-RESiOC ceramic through photocuring 3D printing
The invention relates to a method for preparing PDC-RESiOC ceramic through photocuring 3D printing, and belongs to the technical field of electromagnetic wave absorbing materials. The preparation method comprises the following steps: uniformly mixing tetrahydrofuran and tripropylene glycol monomethyl ether to obtain a solution A, sequentially dissolving polysulfone and 3-(methylacryloyloxy) propyltrimethoxysilane into the solution A, and carrying out acidic hydrolysis for 12-14 hours to obtain a solution C; evaporating at the temperature of 45-55 DEG C to remove the solvent tetrahydrofuran in the solution C, and retaining the solvent tripropylene glycol monomethyl ether to obtain a solution D; adding trimethylolpropane triacrylate into the solution D, uniformly mixing, sequentially adding phenyl bis (2, 4, 6-trimethylbenzoyl) phosphine oxide and rare earth salt, and uniformly mixing to obtain a photocuring prefabricated solution; according to the pre-designed ceramic structure, the photocuring prefabricated solution is subjected to 3D printing to obtain a 3D prefabricated part; placing the 3D prefabricated part in an argon atmosphere, heating the 3D prefabricated part to 900-1200 DEG C, and performing constant-temperature pyrolysis for 2-4 hours to obtain the compact PDC-RESiOC ceramic. Electromagnetic parameters and microwave absorption performance can be adjusted by controlling the content of the rare earth salt.
本发明涉及一种光固化3D打印制备PDC‑RESiOC陶瓷的方法，属于电磁波吸收材料技术领域。本发明将四氢呋喃和三丙二醇单甲醚混匀得到溶液A，依次将聚砜和3‑(甲基丙烯氧基)丙基三甲氧基硅烷溶解于溶液A中，酸性水解12～14h得到溶液C；在温度45～55℃下蒸发去除溶液C中溶剂四氢呋喃，保留溶剂三丙二醇单甲醚得到溶液D；将三羟甲基丙烷三丙烯酸酯加入到溶液D中混合均匀，再依次加入苯基双(2,4,6‑三甲基苯甲酰基)氧化膦和稀土盐，混合均匀得到光固化预制溶液；根据预设计陶瓷结构，光固化预制溶液经3D打印得到3D预制件；3D预制件置于氩气氛围下加热至温度900～1200℃并恒温热解2～4h，得到致密PDC‑RESiOC陶瓷。本发明可通过控制稀土盐的含量，调整电磁参数和微波吸收性能。
Method for preparing PDC-RESiOC ceramic through photocuring 3D printing
The invention relates to a method for preparing PDC-RESiOC ceramic through photocuring 3D printing, and belongs to the technical field of electromagnetic wave absorbing materials. The preparation method comprises the following steps: uniformly mixing tetrahydrofuran and tripropylene glycol monomethyl ether to obtain a solution A, sequentially dissolving polysulfone and 3-(methylacryloyloxy) propyltrimethoxysilane into the solution A, and carrying out acidic hydrolysis for 12-14 hours to obtain a solution C; evaporating at the temperature of 45-55 DEG C to remove the solvent tetrahydrofuran in the solution C, and retaining the solvent tripropylene glycol monomethyl ether to obtain a solution D; adding trimethylolpropane triacrylate into the solution D, uniformly mixing, sequentially adding phenyl bis (2, 4, 6-trimethylbenzoyl) phosphine oxide and rare earth salt, and uniformly mixing to obtain a photocuring prefabricated solution; according to the pre-designed ceramic structure, the photocuring prefabricated solution is subjected to 3D printing to obtain a 3D prefabricated part; placing the 3D prefabricated part in an argon atmosphere, heating the 3D prefabricated part to 900-1200 DEG C, and performing constant-temperature pyrolysis for 2-4 hours to obtain the compact PDC-RESiOC ceramic. Electromagnetic parameters and microwave absorption performance can be adjusted by controlling the content of the rare earth salt.
本发明涉及一种光固化3D打印制备PDC‑RESiOC陶瓷的方法，属于电磁波吸收材料技术领域。本发明将四氢呋喃和三丙二醇单甲醚混匀得到溶液A，依次将聚砜和3‑(甲基丙烯氧基)丙基三甲氧基硅烷溶解于溶液A中，酸性水解12～14h得到溶液C；在温度45～55℃下蒸发去除溶液C中溶剂四氢呋喃，保留溶剂三丙二醇单甲醚得到溶液D；将三羟甲基丙烷三丙烯酸酯加入到溶液D中混合均匀，再依次加入苯基双(2,4,6‑三甲基苯甲酰基)氧化膦和稀土盐，混合均匀得到光固化预制溶液；根据预设计陶瓷结构，光固化预制溶液经3D打印得到3D预制件；3D预制件置于氩气氛围下加热至温度900～1200℃并恒温热解2～4h，得到致密PDC‑RESiOC陶瓷。本发明可通过控制稀土盐的含量，调整电磁参数和微波吸收性能。
Method for preparing PDC-RESiOC ceramic through photocuring 3D printing
一种光固化3D打印制备PDC-RESiOC陶瓷的方法
WEI HANJUN (Autor:in) / TANG LU (Autor:in) / CHEN SIYU (Autor:in) / CHEN ZHIYONG (Autor:in) / ZHOU CHUNLIN (Autor:in) / LI YING (Autor:in)
27.08.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
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
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