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Amorphous calcium-copper-titanium-oxygen ceramic/polyimide composite film and preparation method thereof

A calcium-copper-titanium-oxygen and polyimide technology is applied in the field of ceramic/polyimide composite film and its preparation, which can solve the problems of high energy consumption and low dielectric constant of sintered crystal ceramics, and improve the dielectric constant. , low cost, energy saving effect

Inactive Publication Date: 2014-04-09
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention aims to solve the high energy consumption of crystalline calcium-copper-titanium oxide ceramic / polyimide composite film in the existing preparation method of crystal calcium-copper-titanium oxide ceramic / polyimide composite film, and the prepared crystal calcium-copper-titanium oxide ceramic / polyimide composite film can Concentration (mass fraction of ceramics below 20%) doped with low dielectric constant, and provides an amorphous calcium copper titanium oxide ceramic / polyimide composite film and its preparation method

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  • Amorphous calcium-copper-titanium-oxygen ceramic/polyimide composite film and preparation method thereof
  • Amorphous calcium-copper-titanium-oxygen ceramic/polyimide composite film and preparation method thereof
  • Amorphous calcium-copper-titanium-oxygen ceramic/polyimide composite film and preparation method thereof

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specific Embodiment approach 1

[0015] Embodiment 1: This embodiment provides an amorphous calcium copper titania ceramic / polyimide composite film, which is composed of amorphous calcium copper titania ceramic particles, 4,4'-diaminodiphenyl ether, phenylene The film prepared by tetraformic anhydride and solvent; wherein, the mass ratio of the 4,4'-diaminodiphenyl ether to the amorphous calcium-copper-titanium oxide ceramic particles is (2.70~15.39):1, and the added homobenzene The mass ratio of tetraformic anhydride to the amorphous calcium copper titanium oxide ceramic particles is (2.97~16.93):1, and the mass ratio of the volume of the solvent to the amorphous calcium copper titanium oxide ceramic particles is (45mL~254mL):1g.

[0016] This embodiment provides an amorphous calcium-copper-titanium oxide ceramic / polyimide composite film, which can be larger when doped at a low concentration (the mass fraction of amorphous calcium-copper-titanium oxide ceramics in the composite film is less than 20%). Increa...

specific Embodiment approach 2

[0017] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the solvent is dimethylacetamide. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0018] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the amorphous calcium-copper-titanium oxide ceramic particles are prepared according to the following steps:

[0019] a. Add calcium nitrate and copper nitrate to ethylene glycol methyl ether, stir at 40°C~60°C at a stirring rate of 300r / min~500r / min for 20min~40min, then cool to 20°C~30°C, To obtain a mixed solution, add tetrabutyl titanate to the mixed solution, stir at a stirring rate of 300r / min~500r / min for 40min~80min, then let stand for 20h~28h to obtain a sol; wherein, the ethylene glycol methyl The ratio of the volume of ether to the amount of calcium nitrate is (3.65L~8.65L):1mol, the molar ratio of copper nitrate to calcium nitrate is (2~4):1, and the molar ratio of tetrabutyl titanate to calcium nitrate The ratio is (3.5~4.5):1; b. Ignite the sol obtained in step 1 to obtain a powder, grind the powder with a mortar for 1h~2h, then raise the temperature at a rate of 4°C / min~8°C...

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Abstract

The invention relates to the field of the ceramic / polyimide composite film and the preparation method thereof, and particularly discloses an amorphous calcium-copper-titanium-oxygen ceramic / polyimide composite film and a preparation method thereof.. The film and the method aim to solve the problems that the present crystalline calcium-copper-titanium-oxygen ceramic / polyimide composite film preparation method consumes high energy in sintering crystalline ceramics and the prepared crystalline calcium-copper-titanium-oxygen ceramic / polyimide composite film has lower specific inductive capacity during doping at low density (the mass percentage of the ceramics is lower than 20%). The amorphous calcium-copper-titanium-oxygen ceramic / polyimide composite film is prepared from amorphous calcium-copper-titanium-oxygen ceramic particles, (4, 4')- diaminodiphenyl ether, pyromellitic dianhydride and a solvent. The preparation method is as follows: I, preparing an amorphous calcium-copper-titanium-oxygen ceramic / polyamide acid mixed solution; and II, by the way of heating for imidization after coating application, preparing to obtain the amorphous calcium-copper-titanium-oxygen ceramic / polyimide composite film. The film and the method are applied to the fields of information, electronics and electricity.

Description

technical field [0001] The invention relates to the field of ceramic / polyimide composite film and its preparation method. Background technique [0002] With the rapid development of information, electronics and electric power industries, polymer composite dielectric materials with high dielectric properties have attractive application prospects and become a hotspot in industry research, especially the preparation of dielectric ceramics / polymers at low cost High dielectric composite materials have become an important direction of industry development. At present, calcium-copper-titanium-oxygen ceramics are widely studied as fillers to enhance the dielectric properties of polymer films. High energy consumption, the prepared crystalline calcium-copper-titanium oxide ceramic / polyimide composite film has a low dielectric constant when doped at a low concentration (ceramic mass fraction below 20%), which cannot meet the needs of actual production . Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L79/08C08K3/22C08G73/10C08J5/18
Inventor 迟庆国孙嘉钟蕊张颖高亮王暄雷清泉
Owner HARBIN UNIV OF SCI & TECH
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