Antistatic recyclable PE film for powder packaging

An antistatic technology for packaging, applied in the field of packaging, can solve the problems of high dosage of non-ionic antistatic agent, difficulty in neutralizing the negative charge on the surface of PE, poor thermal stability, etc., achieve low thermal conductivity and inhibit decomposition , to promote the effect of uniform distribution

Active Publication Date: 2020-08-25
JIANGYIN SHENLONG PACKAGING MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the amount of non-ionic antistatic agents is high, about twice or more than ionic antistatic agents; anionic antistatic agents are difficult to neutralize the negative charge on the surface of PE; cationic antistatic agents have excellent antistatic effects, but are thermally stable Poor resistance, easy to decompose or even deteriorate during processing due to poor thermal stability, generally only used as an external application antistatic agent

Method used

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  • Antistatic recyclable PE film for powder packaging

Examples

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Comparison scheme
Effect test

Embodiment 1

[0023] An antistatic recyclable PE packaging film for powder packaging is a three-layer co-extrusion blown film, which includes a PE surface layer, a PE middle layer and a PE heat-sealing layer laminated in sequence. Wherein, the PE surface layer is composed of raw materials in the following weight percentages: LLDPE 40%, HDPE 40%, LDPE 20%. The PE middle layer is composed of raw materials in the following weight percentages: LLDPE 40%, HDPE 30%, LDPE 30%. The PE heat-sealing layer is composed of the following raw materials in weight percentage: 55% of LLDPE, 40% of LDPE, and 5% of porous heat-insulating ceramic microspheres adsorbed with cationic antistatic agent.

[0024] Here, the preparation method of porous heat-insulating ceramic microspheres is: mix 1 g of water-soluble zirconium source, 1 g of porous polyglyceryl methacrylate / ethylene glycol dimethacrylate microspheres with an average particle size of 5 μm, and 6 ml of water, and ultrasonically After dispersing and so...

Embodiment 2

[0026]An antistatic recyclable PE packaging film for powder packaging is a three-layer co-extrusion blown film, which includes a PE surface layer, a PE middle layer and a PE heat-sealing layer laminated in sequence. Wherein, the PE surface layer is composed of raw materials in the following weight percentages: LLDPE 60%, HDPE 30%, LDPE 10%. The PE middle layer is composed of raw materials in the following weight percentages: LLDPE 60%, HDPE 20%, LDPE 20%. The PE heat-sealing layer is composed of the following raw materials in weight percentage: 69% of LLDPE, 30% of LDPE, and 1% of porous heat-insulating ceramic microspheres adsorbed with cationic antistatic agent.

[0027] Here, the preparation method of porous heat-insulating ceramic microspheres is to mix 6g of water-soluble zirconium source, 2g of porous polyglycerol methacrylate / ethylene glycol dimethacrylate microspheres with an average particle size of 5 μm and 10ml of water, and ultrasonically After dispersing and soak...

Embodiment 3

[0029] An antistatic recyclable PE packaging film for powder packaging is a three-layer co-extrusion blown film, which includes a PE surface layer, a PE middle layer and a PE heat-sealing layer laminated in sequence. Wherein, the PE surface layer is composed of raw materials in the following weight percentages: LLDPE 50%, HDPE 35%, LDPE 15%. The PE middle layer is composed of raw materials in the following weight percentages: LLDPE 55%, HDPE 22%, LDPE 23%. The PE heat-sealing layer is composed of the following raw materials in weight percentage: 65% of LLDPE, 31% of LDPE, and 4% of porous heat-insulating ceramic microspheres adsorbed with cationic antistatic agent.

[0030] Here, the preparation method of porous heat-insulating ceramic microspheres is to mix 2g of water-soluble zirconium source, 1.5g of porous polyglyceryl methacrylate / ethylene glycol dimethacrylate microspheres with an average particle diameter of 5 μm and 8ml of water, Ultrasonic dispersion, soaking for 1-1...

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Abstract

The invention discloses an antistatic recyclable PE packaging film for powder packaging. The PE packaging film is a three-layer co-extrusion blown-molded film and comprises a PE surface layer, a PE middle layer and a PE heat-sealing layer which are sequentially overlapped, wherein the PE heat-sealing layer comprises PE resin and porous heat insulation ceramic microspheres adsorbed with a cationicantistatic agent, and the porous heat insulation ceramic microspheres are porous zirconium dioxide microspheres modified by allyl trimethylsiloxane. According to the invention, the cationic antistaticagent is adsorbed by the zirconium dioxide porous microspheres which are inactive in chemical property but good in heat-insulating property, so the decomposition effect of high temperature on the cationic antioxidant in the film processing process is inhibited; and the porous structures of the zirconium dioxide microspheres are utilized to adsorb water vapor in an environment, so the antistatic agent is easy to migrate out to reach the surface of the film at low humidity, and an efficient and stable electrostatic effect is formed.

Description

technical field [0001] The invention relates to the field of packaging, in particular to an antistatic recyclable PE film for powder packaging. Background technique [0002] Static electricity is a common physical phenomenon, and it is easy to generate static electricity when objects move. When plastic bags made of chemical synthetic resin are used for powder packaging, the powder is easily charged after repeated friction with the inner surface of the plastic bag. For example, the common plastic PE has a large work function and is easily charged negatively after friction; these charges are easy to stick. Packing powder, absorbing the powder to be packaged on the inner surface of the bag. This kind of electrostatic adsorption is not a big problem when packaging powder materials with large mesh number and high density; due to the effect of gravity, the contents can perfectly enter the bag body, and the contents can also be perfectly poured out from the bag body to keep the ba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/32B32B27/18B32B27/06B32B33/00C08J5/18C08L23/08C08L23/06B65D65/40
CPCB32B27/32B32B27/18B32B27/08B32B33/00C08J5/18B65D65/40B32B2307/21B32B2307/304B32B2250/03B32B2250/242Y02W30/80
Inventor 曹铠陈宝昆沈韬倪忠斌
Owner JIANGYIN SHENLONG PACKAGING MATERIALS CO LTD
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