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Chemical imidization preparation method of nano rectorite/polyimide film

A technology of polyimide film and chemical imidization, which is applied in the field of preparation of nano-laminated stone/polyimide film, can solve the problems of poor dispersion of nano-clay and unstable film-forming performance of thermal imidization, etc. Achieve low dimensional stability, improve isotropy, and improve mechanical properties

Inactive Publication Date: 2009-12-09
西安航天三沃化学有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Overcome the shortcomings of poor dispersion of nano-clay and unstable film-forming properties of thermal imidization in the prior art

Method used

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  • Chemical imidization preparation method of nano rectorite/polyimide film

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] (1) The formulation of the components used in the preparation of nanometer calcite / polyimide film in this embodiment is as follows:

[0035] Nano Latex 2 parts

[0036] 4,4'-diaminodiphenyl ether 6 parts

[0037] 3 parts p-phenylenediamine

[0038] 5 parts pyromellitic dianhydride

[0039] 11 parts of acetic anhydride

[0040] 6 parts of pyridine

[0041] 67 parts of N,N-dimethylformamide.

[0042] (2) Preparation of nanometerite: soak 20 parts of stone in 1000 parts of deionized water to obtain the slurry of stone, add 10 parts of organic modifier, organic modifier is GS14-3-14, in Stirring and reacting at 90° C. for 9 hours, suction filtration and drying to obtain organically modified nano-pearlite.

[0043](3) The manufacture method of the nanometer calcite / polyimide film is: weigh each component according to the formula amount, and divide the solvent N,N-dimethylformamide into two parts. Add a portion of solvent N,N-dimethylformamide into the reaction vessel,...

Embodiment 2

[0045] (1) The formulation of the components used in the preparation of nanometer calcite / polyimide film in this embodiment is as follows:

[0046] 5 parts of organic Latex

[0047] 15 parts of diamino-p-phenylene ether

[0048] Dibenzoic acid ketone dianhydride 10 parts

[0049] 10 parts of acetic anhydride

[0050] Propionic anhydride 5 parts

[0051] 2 parts pyridine

[0052] 53 parts of N,N-dimethylformamide.

[0053] Preparation of nano-randolith: Soak 15 parts of rentonite in 1000 parts of deionized water to obtain rentonite slurry, add 10 parts of organic modifier, the organic modifier is GS12-4-12, at 60 ° C , stirred and reacted for 10 hours, and dried with suction to obtain organically modified nano-plastite.

[0054] (3) The manufacture method of the nanometer calcite / polyimide film is: weigh each component according to the formula amount, and divide the solvent N,N-dimethylformamide into two parts. Add a portion of solvent N,N-dimethylformamide into the reac...

Embodiment 3

[0057] (1) The formulation of the components used in the preparation of nanometer calcite / polyimide film in this embodiment is as follows:

[0058] 3 servings of organic Latex

[0059] Diaminodiphenyl ether 5 parts

[0060] 15 parts of pyromellitic dianhydride

[0061] Butyric anhydride 10 parts

[0062] Pyridine 8 parts

[0063] 59 parts of N,N-dimethylformamide.

[0064] The preparation of nanometerite: Soak 20 parts of mentionite in 1000 parts of deionized water to obtain mentionite slurry, add 10 parts of organic modifier, the organic modifier is GS16-4-16, at 80 ℃ , stirred and reacted for 9 hours, and was dried by suction filtration to obtain organically modified nano-plastite.

[0065] (3) The manufacture method of the nanometer calcite / polyimide film is: weigh each component according to the formula amount, and divide the solvent N,N-dimethylformamide into two parts. Add a portion of solvent N,N-dimethylformamide into the reaction vessel, then add nanometer calci...

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Abstract

The invention relates to a chemical imidization preparation method of nano rectorite / polyimide film. A binary surface modifying agent is adopted for organic modifying on rectorite, and the prepared organic rectorite has wider interlamination region and better dissociation effect and is easier to form polyimide / nano rectorite intercalation compound; in-situ polymerization is adopted for adding the organic rectorite, so as to cause the organic rectorite to be more evenly dispersed in polyimide acid; and chemical imidization is used for preparing polyimide nano composite material, so that film forming performance thereof is better. The nano rectorite / polyimide compound film prepared by the invention is improved in thermal stability and size stability with low thermal expansion coefficient.

Description

technical field [0001] The invention belongs to the technical field of organic polymer materials, and relates to the modification of polymer material polyimide, in particular to a method for preparing a nanometer calcite / polyimide film. Background technique [0002] Polyimide film is widely used in electrical and electronic fields as a high-performance insulating material because of its excellent electrical properties, flame retardant properties, high temperature resistance and radiation resistance. Film, polypropylene film and polyethylene film are incomparable. With the miniaturization, folding and portability of microelectronics technology, the development and popularization of electrical technology towards high voltage and ultra-high voltage, and the development and popularization of frequency conversion and energy saving technologies, polyimide film materials, which occupy an important position in insulation, have different requirements in different fields. New perform...

Claims

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Application Information

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IPC IPC(8): C08J5/18C08L79/08C08K9/04
Inventor 屈小红翟瑞青张永侠李林远高建宾
Owner 西安航天三沃化学有限公司
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