Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method and application of potassium hexatitanate coated aluminum oxide refractory brick
The invention discloses a preparation method of a potassium hexatitanate-coated aluminum oxide refractory brick, which comprises the following steps: coating the surface of an aluminum oxide refractory brick with potassium hexatitanate slurry, drying the aluminum oxide refractory brick coated with the potassium hexatitanate slurry, with the solid content of potassium hexatitanate being 5-25%, and the solid content of potassium hexatitanate being 5-25%. The peak intensities of the diffraction peaks of potassium hexatitanate at 2theta angles of 11.4 +/-0.3 degrees and 13.78 +/-0.3 degrees in an XRD (X-Ray Diffraction) pattern are smaller than the peak intensities of the diffraction peaks at 29.46 +/-0.3 degrees and 30.06 +/-0.3 degrees. Graphene is added in the electrostatic spinning process, and the added graphene wraps the active surface (200) and the active surface (-201), so that the peak intensities of diffraction peaks of generated potassium hexatitanate with the 2 theta angle of 11.4 +/-0.3 degrees and 13.78 +/-0.3 degrees are smaller than those of diffraction peaks of generated potassium hexatitanate with the 2 theta angle of 29.46 +/-0.3 degrees and those of generated potassium hexatitanate with the 2 theta angle of 30.06 +/-0.3 degrees. The aluminum oxide refractory brick of which the surface is coated with the potassium hexatitanate slurry has excellent mechanical properties and heat conductivity coefficient, and can meet the application of the aluminum oxide refractory brick in a higher-temperature environment.
本发明公开一种六钛酸钾包覆三氧化二铝耐火砖的制备方法，包括以下步骤：采用六钛酸钾浆液对三氧化二铝耐火砖进行表面涂覆，对涂覆六钛酸钾浆液的三氧化二铝耐火砖进行烘干处理，六钛酸钾的固含量为5‑25％，六钛酸钾在XRD图谱的2θ角度为11.4±0.3°和13.78±0.3°的衍射峰的峰强均小于2θ角度为29.46±0.3°和30.06±0.3°的衍射峰的峰强。本申请通过静电纺丝过程中加入石墨烯，加入的石墨烯包裹住活性面(200)面和(‑201)，使得生成的六钛酸钾2θ角度为11.4±0.3°和13.78±0.3°的衍射峰的峰强均小于2θ角度为29.46±0.3°和30.06±0.3°的衍射峰的峰强。表面涂覆上述六钛酸钾浆液后的三氧化二铝耐火砖力学性能和导热系数优异，能够满足三氧化二铝耐火砖在更高温度环境中的应用。
Preparation method and application of potassium hexatitanate coated aluminum oxide refractory brick
The invention discloses a preparation method of a potassium hexatitanate-coated aluminum oxide refractory brick, which comprises the following steps: coating the surface of an aluminum oxide refractory brick with potassium hexatitanate slurry, drying the aluminum oxide refractory brick coated with the potassium hexatitanate slurry, with the solid content of potassium hexatitanate being 5-25%, and the solid content of potassium hexatitanate being 5-25%. The peak intensities of the diffraction peaks of potassium hexatitanate at 2theta angles of 11.4 +/-0.3 degrees and 13.78 +/-0.3 degrees in an XRD (X-Ray Diffraction) pattern are smaller than the peak intensities of the diffraction peaks at 29.46 +/-0.3 degrees and 30.06 +/-0.3 degrees. Graphene is added in the electrostatic spinning process, and the added graphene wraps the active surface (200) and the active surface (-201), so that the peak intensities of diffraction peaks of generated potassium hexatitanate with the 2 theta angle of 11.4 +/-0.3 degrees and 13.78 +/-0.3 degrees are smaller than those of diffraction peaks of generated potassium hexatitanate with the 2 theta angle of 29.46 +/-0.3 degrees and those of generated potassium hexatitanate with the 2 theta angle of 30.06 +/-0.3 degrees. The aluminum oxide refractory brick of which the surface is coated with the potassium hexatitanate slurry has excellent mechanical properties and heat conductivity coefficient, and can meet the application of the aluminum oxide refractory brick in a higher-temperature environment.
本发明公开一种六钛酸钾包覆三氧化二铝耐火砖的制备方法，包括以下步骤：采用六钛酸钾浆液对三氧化二铝耐火砖进行表面涂覆，对涂覆六钛酸钾浆液的三氧化二铝耐火砖进行烘干处理，六钛酸钾的固含量为5‑25％，六钛酸钾在XRD图谱的2θ角度为11.4±0.3°和13.78±0.3°的衍射峰的峰强均小于2θ角度为29.46±0.3°和30.06±0.3°的衍射峰的峰强。本申请通过静电纺丝过程中加入石墨烯，加入的石墨烯包裹住活性面(200)面和(‑201)，使得生成的六钛酸钾2θ角度为11.4±0.3°和13.78±0.3°的衍射峰的峰强均小于2θ角度为29.46±0.3°和30.06±0.3°的衍射峰的峰强。表面涂覆上述六钛酸钾浆液后的三氧化二铝耐火砖力学性能和导热系数优异，能够满足三氧化二铝耐火砖在更高温度环境中的应用。
Preparation method and application of potassium hexatitanate coated aluminum oxide refractory brick
一种六钛酸钾包覆三氧化二铝耐火砖的制备方法及其应用
GOU XIAOLIN (Autor:in) / JI WENCHUAN (Autor:in) / GU YINQIAO (Autor:in) / YUE ZHU (Autor:in) / HAN FENG (Autor:in) / LU HANYANG (Autor:in) / QIU MENGRU (Autor:in)
10.11.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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