Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Aluminum nitride nanoflower/polymer composite material and preparation method thereof
The invention relates to the technical field of preparation of electronic packaging heat management materials, in particular to an aluminum nitride nanoflower/polymer composite material and a preparation method thereof. The preparation method comprises the following steps: A) mixing aluminum powder with a salt solution, and carrying out ultrasonic cavitation corrosion; B) performing suction filtration on the product solution in the step A) to obtain a filter cake; C) crushing the filter cake, uniformly mixing the crushed filter cake with a solid nitrogen source, and carrying out a nitridation reaction in a nitrogen-containing atmosphere; D) decarbonizing the product after the nitridation reaction to obtain aluminum nitride nanoflowers; E) uniformly mixing the aluminum nitride nanoflowers, a sintering aid and an additive in a solvent to form a turbid liquid, performing directional freeze forming, performing freeze drying, and sintering to obtain a porous aluminum nitride three-dimensional network framework; and F) under a vacuum condition, infiltrating a resin into the porous aluminum nitride three-dimensional network framework, and curing to obtain the aluminum nitride nanoflower/polymer composite material. The aluminum nitride nanoflower/polymer composite material disclosed by the invention has excellent thermal conductivity.
本发明涉及电子封装热管理材料制备技术领域，尤其涉及一种氮化铝纳米花/聚合物复合材料及其制备方法。所述制备方法包括：A)将铝粉与盐溶液混合，进行超声波空化腐蚀；B)将步骤A)的产物溶液进行抽滤，得到滤饼；C)将滤饼粉碎，与固体氮源混匀后，在含氮气氛下进行氮化反应；D)将氮化反应后的产物进行除碳，得到氮化铝纳米花；E)将氮化铝纳米花、烧结助剂及添加剂在溶剂中均匀混合成悬浊液后，进行定向冷冻成型，再经冷冻干燥后进行烧结，得到多孔氮化铝三维网络骨架；F)在真空条件下，将树脂浸渗进多孔氮化铝三维网络骨架后进行固化，得到氮化铝纳米花/聚合物复合材料。本发明的氮化铝纳米花/聚合物复合材料具有优良的热导率。
Aluminum nitride nanoflower/polymer composite material and preparation method thereof
The invention relates to the technical field of preparation of electronic packaging heat management materials, in particular to an aluminum nitride nanoflower/polymer composite material and a preparation method thereof. The preparation method comprises the following steps: A) mixing aluminum powder with a salt solution, and carrying out ultrasonic cavitation corrosion; B) performing suction filtration on the product solution in the step A) to obtain a filter cake; C) crushing the filter cake, uniformly mixing the crushed filter cake with a solid nitrogen source, and carrying out a nitridation reaction in a nitrogen-containing atmosphere; D) decarbonizing the product after the nitridation reaction to obtain aluminum nitride nanoflowers; E) uniformly mixing the aluminum nitride nanoflowers, a sintering aid and an additive in a solvent to form a turbid liquid, performing directional freeze forming, performing freeze drying, and sintering to obtain a porous aluminum nitride three-dimensional network framework; and F) under a vacuum condition, infiltrating a resin into the porous aluminum nitride three-dimensional network framework, and curing to obtain the aluminum nitride nanoflower/polymer composite material. The aluminum nitride nanoflower/polymer composite material disclosed by the invention has excellent thermal conductivity.
本发明涉及电子封装热管理材料制备技术领域，尤其涉及一种氮化铝纳米花/聚合物复合材料及其制备方法。所述制备方法包括：A)将铝粉与盐溶液混合，进行超声波空化腐蚀；B)将步骤A)的产物溶液进行抽滤，得到滤饼；C)将滤饼粉碎，与固体氮源混匀后，在含氮气氛下进行氮化反应；D)将氮化反应后的产物进行除碳，得到氮化铝纳米花；E)将氮化铝纳米花、烧结助剂及添加剂在溶剂中均匀混合成悬浊液后，进行定向冷冻成型，再经冷冻干燥后进行烧结，得到多孔氮化铝三维网络骨架；F)在真空条件下，将树脂浸渗进多孔氮化铝三维网络骨架后进行固化，得到氮化铝纳米花/聚合物复合材料。本发明的氮化铝纳米花/聚合物复合材料具有优良的热导率。
Aluminum nitride nanoflower/polymer composite material and preparation method thereof
一种氮化铝纳米花/聚合物复合材料及其制备方法
XIANG DAOPING (Autor:in) / LIU LI (Autor:in)
08.10.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C08L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
,
Massen auf Basis makromolekularer Verbindungen
/
B82Y
Bestimmter Gebrauch oder bestimmte Anwendung von Nanostrukturen
,
SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
/
C01B
NON-METALLIC ELEMENTS
,
Nichtmetallische Elemente
/
C04B
Kalk
,
LIME
/
C08K
Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe
,
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
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