Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Polyimide composite film and graphite film
The invention relates to the technical field of heat conduction materials, in particular to a polyimide composite film and a graphite film. The invention discloses a polyimide composite film. The film is composed of polyimide and metal copper compounded by the polyimide. In the preparation process of the polyimide composite film, metal copper can guide the curing process of a polyamic acid solution, the plasticity of molecular chains is improved, the molecular chains are promoted to be directionally arranged along two-dimensional arrangement during imidization, and hexagonal two-dimensional carbon plane growth during high-temperature sintering of the polyimide composite film is facilitated; and the graphite film obtained after high-temperature sintering is smooth in surface, compact in structure, high in orientation degree and excellent in heat-conducting property.
本发明涉及导热材料技术领域，尤其涉及一种聚酰亚胺复合薄膜和石墨膜。本发明公开了一种聚酰亚胺复合薄膜，该薄膜由聚酰亚胺和所述聚酰亚胺复合的金属铜组成。聚酰亚胺复合薄膜在制备过程中，金属铜可以引导聚聚酰胺酸溶液的固化过程，增加分子链的塑性和促使亚胺化时分子链沿二维排布定向排列，利于聚酰亚胺复合薄膜高温烧结时六角二维碳平面生长，使高温烧结后得到的石墨膜表面平整、结构致密，定向程度高，导热性能优异。
Polyimide composite film and graphite film
The invention relates to the technical field of heat conduction materials, in particular to a polyimide composite film and a graphite film. The invention discloses a polyimide composite film. The film is composed of polyimide and metal copper compounded by the polyimide. In the preparation process of the polyimide composite film, metal copper can guide the curing process of a polyamic acid solution, the plasticity of molecular chains is improved, the molecular chains are promoted to be directionally arranged along two-dimensional arrangement during imidization, and hexagonal two-dimensional carbon plane growth during high-temperature sintering of the polyimide composite film is facilitated; and the graphite film obtained after high-temperature sintering is smooth in surface, compact in structure, high in orientation degree and excellent in heat-conducting property.
本发明涉及导热材料技术领域，尤其涉及一种聚酰亚胺复合薄膜和石墨膜。本发明公开了一种聚酰亚胺复合薄膜，该薄膜由聚酰亚胺和所述聚酰亚胺复合的金属铜组成。聚酰亚胺复合薄膜在制备过程中，金属铜可以引导聚聚酰胺酸溶液的固化过程，增加分子链的塑性和促使亚胺化时分子链沿二维排布定向排列，利于聚酰亚胺复合薄膜高温烧结时六角二维碳平面生长，使高温烧结后得到的石墨膜表面平整、结构致密，定向程度高，导热性能优异。
Polyimide composite film and graphite film
一种聚酰亚胺复合薄膜和石墨膜
WANG QIMIN (Autor:in) / CAI YUNFEI (Autor:in) / ZHANG TENGFEI (Autor:in)
06.08.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C08L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
,
Massen auf Basis makromolekularer Verbindungen
/
C04B
Kalk
,
LIME
/
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
/
C08J
Verarbeitung
,
WORKING-UP
/
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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