Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Hydrolysis-resistant high-thermal-conductivity aluminum nitride powder material and preparation method thereof
The invention belongs to the field of aluminum nitride ceramic materials, and particularly relates to hydrolysis-resistant high-thermal-conductivity aluminum nitride powder and a preparation method thereof. The hydrolysis-resistant high-thermal-conductivity aluminum nitride powder material is composed of an aluminum nitride powder matrix, a silicon dioxide inorganic layer and a hydroxyl silicone oil organic layer, wherein the silicon dioxide inorganic layer is coated on the outer surface of the aluminum nitride powder matrix for the first time, and the hydroxyl silicone oil organic layer is coated for the second time. The preparation method has the technical effects that (1) the aluminum nitride powder is subjected to inorganic and organic double-layer coating, so that the hydrolysis resistance of the obtained aluminum nitride material is greatly improved; and (2) on the premise that the original performance of the aluminum nitride powder is not influenced, the problem that aluminum nitride is extremely easy to hydrolyze in a humid environment is well solved, and the addition amount of the aluminum nitride powder in organic silicon is increased, so that the thermal interface material with high thermal conductivity and hydrolysis resistance is obtained. And (3) the method is not only suitable for aluminum nitride powder, but also suitable for thin film and block aluminum nitride materials.
本发明属于氮化铝陶瓷材料领域，具体涉及一种防水解高导热氮化铝粉体及其制备方法。该防水解高导热氮化铝粉体材料是由氮化铝粉基体和一次包覆在氮化铝粉基体外表面的二氧化硅无机层以及二次包覆的羟基硅油有机层。本发明具有的技术效果为：（1）本发明的氮化铝粉体采用无机和有机双层包覆，得到的氮化铝材料抗水解性大大提升。（2）本发明方法在不影响氮化铝粉料原有性能的前提下，很好地解决了氮化铝在潮湿环境中极易水解的问题，并提高氮化铝粉体在有机硅中的添加量，从而获得高热导率且抗水解的热界面材料。（3）本发明的方法不仅适用于氮化铝粉末，同样适用于薄膜与块体氮化铝材料。
Hydrolysis-resistant high-thermal-conductivity aluminum nitride powder material and preparation method thereof
The invention belongs to the field of aluminum nitride ceramic materials, and particularly relates to hydrolysis-resistant high-thermal-conductivity aluminum nitride powder and a preparation method thereof. The hydrolysis-resistant high-thermal-conductivity aluminum nitride powder material is composed of an aluminum nitride powder matrix, a silicon dioxide inorganic layer and a hydroxyl silicone oil organic layer, wherein the silicon dioxide inorganic layer is coated on the outer surface of the aluminum nitride powder matrix for the first time, and the hydroxyl silicone oil organic layer is coated for the second time. The preparation method has the technical effects that (1) the aluminum nitride powder is subjected to inorganic and organic double-layer coating, so that the hydrolysis resistance of the obtained aluminum nitride material is greatly improved; and (2) on the premise that the original performance of the aluminum nitride powder is not influenced, the problem that aluminum nitride is extremely easy to hydrolyze in a humid environment is well solved, and the addition amount of the aluminum nitride powder in organic silicon is increased, so that the thermal interface material with high thermal conductivity and hydrolysis resistance is obtained. And (3) the method is not only suitable for aluminum nitride powder, but also suitable for thin film and block aluminum nitride materials.
本发明属于氮化铝陶瓷材料领域，具体涉及一种防水解高导热氮化铝粉体及其制备方法。该防水解高导热氮化铝粉体材料是由氮化铝粉基体和一次包覆在氮化铝粉基体外表面的二氧化硅无机层以及二次包覆的羟基硅油有机层。本发明具有的技术效果为：（1）本发明的氮化铝粉体采用无机和有机双层包覆，得到的氮化铝材料抗水解性大大提升。（2）本发明方法在不影响氮化铝粉料原有性能的前提下，很好地解决了氮化铝在潮湿环境中极易水解的问题，并提高氮化铝粉体在有机硅中的添加量，从而获得高热导率且抗水解的热界面材料。（3）本发明的方法不仅适用于氮化铝粉末，同样适用于薄膜与块体氮化铝材料。
Hydrolysis-resistant high-thermal-conductivity aluminum nitride powder material and preparation method thereof
一种防水解高导热氮化铝粉体材料及其制备方法
LI YONGSHENG (Autor:in)
30.05.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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