A kind of manufacturing method of cast PE film of aluminized grade

A manufacturing method and casting technology, applied in the direction of chemical instruments and methods, flat products, sputtering coating, etc., can solve the problems that cannot be well satisfied, are not very environmentally friendly, and the mechanical properties and antibacterial properties of polyethylene cast film are not enough. Very ideal and other issues, to achieve the effect of saving energy and materials, non-irritating, and improving product quality

Active Publication Date: 2016-01-13
四川厚诚新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The mechanical properties and antibacterial properties of the polyethylene casting film prepared by this method are not very ideal, and it is not very environmentally friendly, and cannot well meet the requirements of food and medical packaging materials.

Method used

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  • A kind of manufacturing method of cast PE film of aluminized grade
  • A kind of manufacturing method of cast PE film of aluminized grade

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The manufacture method of aluminized grade cast PE film, comprises the following steps:

[0027] (1) Manufacture of PE film: mix and stir silver-loaded zirconium phosphate, amino acid silver, and cinnamon volatile oil at a weight ratio of 2:1:1 to obtain an antibacterial agent, and calcium carbonate, polyvinyl alcohol, silane coupling agent, stearic acid , antibacterial agent, and sodium carboxymethylcellulose were added to the mixer and mixed for 27 minutes. The rotating speed of the mixer was 550r / min, and then LDPE was added and stirred and mixed for 8 minutes to obtain a mixed material. The mixed material was added to a twin-screw extruder with an aspect ratio of 44. The extruder is extruded into granules to obtain the masterbatch. The temperature of each section and head of the twin-screw extruder is 180°C, 220°C, 230°C, 230°C, 220°C, and the screw speed is 540r / min. and HDPE are placed in a kneader with a rotating speed of 500r / min for 12min, then added to a banbu...

Embodiment 2

[0031] The manufacture method of aluminized grade cast PE film, comprises the following steps:

[0032] (1) Manufacture of PE film: mix and stir silver-loaded zirconium phosphate, amino acid silver, and cinnamon volatile oil at a weight ratio of 3:1:1 to obtain an antibacterial agent, and calcium carbonate, polyvinyl alcohol, silane coupling agent, stearic acid , antibacterial agent, and sodium carboxymethylcellulose were added to the mixer and mixed for 28 minutes. The rotating speed of the mixer was 540r / min. After adding LDPE and stirring and mixing for 10 minutes, the mixed material was obtained, and the mixed material was added to a twin-screw extruder with an aspect ratio of 44. The extruder is extruded into granules to obtain the masterbatch. The temperature of each section and head of the twin-screw extruder is 180°C, 220°C, 230°C, 230°C, 220°C, and the screw speed is 520r / min. and HDPE placed in a kneader with a rotating speed of 550r / min and kneaded for 11 minutes, t...

Embodiment 3

[0036] The manufacture method of aluminized grade cast PE film, comprises the following steps:

[0037] (1) Manufacture of PE film: mix and stir silver-loaded zirconium phosphate, amino acid silver, and cinnamon volatile oil at a weight ratio of 2.5:1:1 to obtain an antibacterial agent, and calcium carbonate, polyvinyl alcohol, silane coupling agent, stearic acid , antibacterial agent, and sodium carboxymethylcellulose were added to the mixer and mixed for 25 minutes. The rotating speed of the mixer was 600r / min, and then LDPE was added and stirred and mixed for 8.5 minutes to obtain a mixed material, and the mixed material was added to a twin-screw with an aspect ratio of 44 The extruder is extruded into granules to obtain the masterbatch. The temperature of each section and head of the twin-screw extruder is 180°C, 220°C, 230°C, 230°C, 220°C, and the screw speed is 550r / min. The material and HDPE were placed in a kneader with a rotating speed of 540r / min and kneaded for 10.5...

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PUM

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Abstract

The invention provides a production method of an aluminizing-grade cast PE film. The production method comprises the following steps: (1) production of a PE film: mixing calcium carbonate, a dispersing agent, a coupling agent, a lubricating agent and an antibacterial agent; adding LDPE and stirring uniformly to obtain a mixed material; extruding and granulating the mixed material to obtain masterbatch; kneading the masterbatch with HDPE and performing banburying to obtain a film forming material; adding the film forming material into a casting stretcher; and controlling the draw ratio to obtain a PE film; (2) preparation of an adhesive; and (3) aluminizing: coating the PE film with the adhesive to obtain a film base material; assembling the film base material on an unwinding station of a vacuum evaporator; threading the film through a cooling roller and an evaporation roller and winding on a winding station; vacuumizing, heating an evaporation boat and starting a film winding system; opening a baffle so that gas-state aluminum deposits on the surface of the film base material; and cooling to obtain the aluminizing-grade cast PE film. According to the method provided by the invention, the prepared aluminizing-grade cast PE film has perfect mechanical property and antibacterial property while the cost is relatively low, and can well meet the requirements on the food and medicine packaging materials.

Description

technical field [0001] The invention relates to a method for manufacturing a cast PE film, in particular to a method for manufacturing an aluminum-plated cast PE film. Background technique [0002] At present, the film materials used for food and medical packaging mainly include aluminum foil or inner film. These two materials have better mechanical properties, but the cost is relatively high. PE cast film is also used as food and medical packaging materials. PE cast film is a kind of non-stretched and non-oriented flat extrusion film produced by melt casting and quenching. Compared with blown film, it is characterized by fast production speed, high output, transparency, gloss, and Excellent thickness uniformity, excellent heat sealing performance, excellent transparency, large air permeability, impermeable, soft texture, but the existing PE cast film is used for food and pharmaceutical packaging due to its mechanical properties, antibacterial The performance is not ideal e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08K13/04C08K3/26C08K3/32C08K3/28C08K5/09C08K7/18C09J133/12C08F220/18C08F220/14C08F220/06C08F2/26C08F2/30B29C69/02B29B7/28C23C14/20C23C14/24
CPCB29D7/01B32B27/08B32B27/18B32B27/32C08F2/26C08F2/30C08F220/18C08F220/1808C08J3/226C08J5/18C08J2323/06C08J2423/06C08L23/06C08L2201/10C08L2203/16C08L2205/025C08L2205/035C08L2207/062C08L2207/066C09J133/08C23C14/20C23C14/24C23C14/562C08L91/00C08L29/04C08L1/286C08K13/06C08K9/12C08K2003/0806C08K2003/265C08K2003/328C08K5/09C08F220/14C08F220/06
Inventor 陈渊王广
Owner 四川厚诚新材料有限公司
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