Method for preparing carbide film by carbonizing graphene reinforced polyimide resin

A polyimide resin, graphene technology, applied in solid-state chemical plating, metal material coating process, coating and other directions, can solve the problems of low carbonization rate of carbonized film, high carbonization temperature, long carbonization cycle, etc. Lower carbonization temperature, excellent mechanical properties, and small material shrinkage

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  • Application Information

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Problems solved by technology

[0007] The present invention aims to solve the technical problems of high carbonization temperature, high energy consumption, long carbonization cycle, low carbonization rate and low strength of the existing carbonized film preparation method; Carbonized film method

Method used

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  • Method for preparing carbide film by carbonizing graphene reinforced polyimide resin
  • Method for preparing carbide film by carbonizing graphene reinforced polyimide resin
  • Method for preparing carbide film by carbonizing graphene reinforced polyimide resin

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specific Embodiment approach 1

[0018] Specific embodiment one: utilize graphene to strengthen polyimide resin carbonization to prepare the method for carbonized film in the present embodiment is to carry out according to the following steps:

[0019] Step 1, add 0.02mol4,4'-diaminodiphenyl ether (ODA) and 0.02mol benzophenone tetracarboxylic dianhydride (BTDA) to 100mL N, in N-dimethylacetamide (DMAC), then in an inert atmosphere Mechanically stir at a stirring speed of 300-1000r / min for 4.5-6.5 hours to obtain a PAA solution;

[0020] Step 2, then add 0.05-0.2g of graphene to the PAA solution, and in an inert atmosphere at 0-5°C, stir at a stirring speed of 300-1000r / min to carry out in-situ polymerization reaction, and the reaction time is 1-2h; to obtain solution A ;

[0021] Step 3. Spread solution A on a clean glass plate, then raise the temperature to 60°C for 2h, then raise the temperature to 100°C for 1h, then raise the temperature to 200°C for 1h, then raise the temperature to 300°C for 1h; obtain...

specific Embodiment approach 2

[0023] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the inert atmosphere in step 1 is N2 atmosphere or HE atmosphere. Other steps and parameters are the same as in the first embodiment.

specific Embodiment approach 3

[0024] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the inert atmosphere described in step two is N 2 Atmosphere or atmosphere. Other steps and parameters are the same as those in Embodiment 1 or Embodiment 2.

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Abstract

The invention discloses a method for preparing a carbide film by carbonizing graphene reinforced polyimide resin, and relates to a method for preparing a carbide film. The method solves the technical problems of high carbonizing temperature, high energy consumption, long carbonizing period and low carbonizing rate and low strength of the carbide film in the conventional method for preparing the carbide film. The method comprises the following steps of: 1, adding 4,4'-diamino diphenyl ether (ODA) and 3,3',4,4'-benzophenonetetracarboxylic dianhydride (BTDA) into N,N-dimethyl acetamide (DMAC), and performing mechanical stirring to obtain a polyamide acid (PAA) solution; 2, adding graphene into the PAA solution, and performing in-situ polymerization reaction to obtain a solution A; 3, spreading the solution A on a clean glass plate, heating to the temperature of 60 DEG C and preserving the heat for 2 hours, heating to the temperature of 100 DEG C and preserving the heat for 1 hour, heating to the temperature of 200 DEG C and preserving the heat for 1 hour, heating to the temperature of 300 DEG C and preserving the heat for 1 hour, and thus obtaining a composite film; and 4, carbonizing, naturally cooling to room temperature, and thus obtaining the carbide film. The carbide film has excellent mechanical properties; and because the adding proportion of the graphene is increased, the mechanical properties of the carbide film are improved, the specific capacitance of the graphene is also improved, and the carbide film is suitable to be used as an electrode material.

Description

technical field [0001] The invention relates to a method for preparing a carbonized film by carbonizing a resin. Background technique [0002] Carbon materials refer to inorganic non-metallic materials obtained by using graphite, amorphous carbon or carbon-containing compounds as the main raw materials through a specific production process. Carbon material is considered as a high-grade refractory material in a certain sense, it will not melt above 3000°C, and under normal pressure, it has no melting point, and only sublimates above 3500°C, which is unmatched by other refractory materials. The various comprehensive properties of carbon materials are very good. It has the properties of metals and ceramics, and can play a role that single metals and ceramics cannot: 1) Good electrical and thermal conductivity; carbon can be considered as a covalent semiconductor and metal. Intermediate - semi-metallic, electrically conductive, good thermal conductivity, and at the same time lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C20/06
Inventor 李垚牛永安赵九蓬吴洁
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