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High temperature resistant coating-type black matt polyimide film

A matte polyimide and polyimide film technology, applied in the field of film manufacturing, can solve the problems of high and low temperature resistance, thermal dimensional stability and electrical insulation, and poor electrical insulation. Achieve excellent electrical insulation, good effect, and uniform film formation.

Inactive Publication Date: 2014-07-16
常熟市富邦胶带有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the high and low temperature resistance, thermal dimensional stability and electrical insulation of the existing black matt polyimide film are quite different from those of the H-type polyimide film, especially under high temperature conditions. poor electrical insulation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] First, select ink materials, including main components and mass percentages as follows: water-based high temperature resistant acrylic ink resin 56%, copper oxide 18%, iron oxide 15%, chromium oxide 5%, high temperature additive 2%, dispersion 1.5% additive, 1.5% leveling agent, and 1% additive; then, the above ink materials were mixed and ground by a sand mill for 1 hour, and then dispersed at a high speed for 1 hour at room temperature to prepare a water-based high temperature resistant acrylic black matte ink Then, the prepared water-based high-temperature resistant acrylic black matt ink double-sided coating on the H-type polyimide film forms two layers of water-based high-temperature resistant acrylic black matt ink layers, and the ink consumption is one unit. The amount of coating on one side is 30g, the drying temperature on one side is 135°C, and the drying speed on one side is 18m / min.

Embodiment 2

[0036] First, select ink materials, including main components and mass percentages as follows: water-based high temperature resistant acrylic ink resin 65%, copper oxide 15%, iron oxide 12%, chromium oxide 4%, high temperature additive 1.5%, dispersion 1% additive, 1% leveling agent, and 0.5% additive; then, the above ink materials were mixed and ground by a sand mill for 1 hour, and dispersed at room temperature for 1 hour at high speed to prepare a water-based high temperature resistant acrylic black matte ink Then, the prepared water-based high-temperature resistant acrylic black matt ink double-sided coating on the H-type polyimide film forms two layers of water-based high-temperature resistant acrylic black matt ink layers, and the ink consumption is one unit. The amount of coating on one side is 50g, the drying temperature on one side is 155°C, and the drying speed on one side is 12m / min.

Embodiment 3

[0038] First, select ink materials, including main components and mass percentages as follows: water-based high temperature resistant acrylic ink resin 60%, copper oxide 16%, iron oxide 14%, chromium oxide 5%, high temperature additive 2%, dispersion 1% additive, 1% leveling agent, and 1% additive; then, the above ink materials were mixed and ground by a sand mill for 1 hour, and then dispersed at a high speed for 1 hour at room temperature to prepare a water-based high temperature resistant acrylic black matte ink Then, the prepared water-based high-temperature resistant acrylic black matt ink double-sided coating on the H-type polyimide film forms two layers of water-based high-temperature resistant acrylic black matt ink layers, and the ink consumption is one unit. The amount of coating on one side is 40g, the drying temperature on one side is 150°C, and the drying speed on one side is 15m / min.

[0039] The sources of the above ink material components are as follows: Y3162 ...

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Abstract

The invention discloses a high temperature resistant coating-type black matt polyimide film and a preparation method thereof; the high temperature resistant coating-type black matt polyimide film comprises a polyimide film base layer and black matt ink layers which are coated on the upper and the lower surfaces of the polyimide film base layer; the black matt ink layers are water-based high temperature resistant acrylic black matt ink; and the polyimide film base layer is an H-type polyimide film base layer. According to the high temperature resistant coating-type black matt polyimide film, various excellent properties of an ordinary polyimide film are maintained, the prepared film is uniform and level, the tolerance rate is less than or equal to 3 percent, the black matt effect is good, the bond strength is high, the high temperature resistant effect is excellent, and excellent electrical insulation can be maintained at high temperature.

Description

technical field [0001] The invention relates to the field of film manufacture, in particular to a high-temperature-resistant coating type black matte polyimide film. Background technique [0002] Black matte polyimide film is very difficult to prepare due to its characteristics of complete blackness, complete extinction and opacity. At present, only DuPont of the United States has the technology of synthesizing polyamic acid solution containing full matte melanin to produce better quality black matte film. Photopolyimide film has the same high and low temperature resistance, thermal dimensional stability and electrical insulation as H-type polyimide film. In addition, the high and low temperature resistance, thermal dimensional stability and electrical insulation of the existing black matt polyimide film are quite different from those of the H-type polyimide film, especially under high temperature conditions. Poor electrical insulation. Contents of the invention [0003]...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/08B32B27/18C09D11/107
Inventor 沈加平
Owner 常熟市富邦胶带有限责任公司
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