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Anti-static foamed blown film and forming method

A technology of blown film and molding method, applied in the direction of static electricity, electrical components, etc., can solve the problems of secondary pollution of protective screen, leakage of antistatic agent, etc., and achieve good antistatic effect

Inactive Publication Date: 2015-04-01
杭州纬昌新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages: the antistatic sheet achieves the purpose of antistatic by adding an antistatic agent to the material, but since the antistatic agent is added to the material, the antistatic agent is easy to seep out of the film, causing damage to the protective screen. secondary pollution

Method used

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  • Anti-static foamed blown film and forming method
  • Anti-static foamed blown film and forming method

Examples

Experimental program
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Effect test

Embodiment 1

[0012] Embodiment 1: with reference to attached figure 1 and figure 2 . An antistatic foamed blown film, comprising a foamed blown film 5, the film surface of the foamed blown film 5 blends with the film surface, and a layer of metal powder particles 2 is laid between the surfaces. The metal powder particle layer formed by the metal powder particles 2 has a network structure 6 . The metal powder 2 is aluminum powder, copper powder, copper alloy powder.

Embodiment 2

[0013] Embodiment 2: with reference to attached image 3 . On the basis of Example 1, a method for forming an antistatic foamed blown film includes a blown film machine, and the melted plastic raw material is extruded from the die mouth 1, and while the plastic film is inflated, it is positioned at the die head The metal powder nozzle 4 above the die mouth sprays the metal powder from the nozzle and adheres to the surface of the molten foamed blown film, then closes the mold, cools, and then winds up an anti-static foamed blown film through the winding rack. Film cartridges. The metal powder nozzle 4 is a partial mouth, and the partial mouth is provided with a plurality of mouth openings 3 at equal intervals.

Embodiment 3

[0014] Embodiment 3: with reference to attached image 3 . An antistatic foam blown film forming equipment includes a blown film machine, and a nozzle 4 of metal powder particles is provided above the die mouth 1 of the blown film machine. The metal powder nozzle 4 is a partial mouth, and the partial mouth is provided with a plurality of mouth openings 3 at equal intervals. The multiple mouths 3 are relatively inclined.

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Abstract

The invention relates to an anti-static foamed blown film and a forming method; the anti-static foamed blown film is composed of metal powder grains and has the anti-static function; a film blowing machine is included; and the forming method disclosed by the invention comprises the following steps: extruding a molten plastic raw material through a die orifice of a die head, in the event of blowing a plastic film, spraying the metal powder grains through a nozzle and sticking on the molten foamed blown film surface by a metal powder grain nozzle above the die orifice of the die head, then, closing a die, cooling, and rolling through a rolling frame to obtain an anti-static foamed blown film cylindrical material. The anti-static foamed blown film disclosed by the invention has the advantages that on the basis of the existing film blowing machine, the metal powder grain nozzle is arranged above the die orifice of the die head, so that manufacturing of an anti-static plastic film is realized through the film blowing machine; by adopting a grid type anti-static net made of the metal powder grains, the anti-static foamed blown film has a good anti-static effect; and furthermore, the disadvantages in the background technology are avoided.

Description

technical field [0001] The invention relates to an antistatic foam blown film with antistatic function and a forming method which is composed of metal powder particles and belongs to the field of antistatic foam blown film manufacture. Background technique [0002] CN1400271A, title "an antistatic sheet", due to the use of an ion-based antistatic agent as a conductive substance, the use of a foaming matrix material obtained by mechanical foaming as a sheet-like elastic body, the foaming matrix The physical properties such as airtightness and brittleness of the material are not adversely affected, and it has sufficient electrical conductivity and excellent antistatic performance. In the urethane foaming plastic raw material M which is composed of the main plastic raw material polyol and isocyanate components, various auxiliary materials, and foaming gas, add the required amount of ionic antistatic agent, and then use the urethane foaming plastic raw material M The urethane f...

Claims

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Application Information

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IPC IPC(8): B29C49/42H05F1/00
Inventor 罗俊人
Owner 杭州纬昌新材料有限公司
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