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Protection package film filling material and preparation method thereof

A technology for packaging films and minerals, applied in the field of protective packaging materials, can solve the problems of immature inorganic antibacterial methods, etc., and achieve the effects of low price, low production cost and low energy consumption

Inactive Publication Date: 2008-03-19
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Anti-mold is mainly filled with organic antibacterial agents, inorganic silver, zinc, copper and other components, and the inorganic antibacterial methods are still very immature.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Take 10g of montmorillonite, soak it in 100ml of water for 48h, add 0.3g of cetyltrimethylammonium bromide modifier and 2ml of 0.1ml / l hydrochloric acid, grind it in a planetary ball mill for 2 hours, add 0.1g of ZnCl 2 Then continue ball milling to nanometer scale. The ball-milled montmorillonite is subjected to solid-liquid separation through a centrifuge; the supernatant is removed, and the precipitate is dried at 100°C to obtain a layered modified nano-aluminosilicate. Take 7g of nano-aluminosilicate, 4g of copper micropowder, and 40g of low-density polyethylene powder, mix them, and add them into a plastic mixer for mixing. The mixing temperature is 170° C., and the plastic mixer speed is 40 rpm. The mixing time is 30 minutes to obtain a uniformly mixed composite masterbatch, which is then passed through a film-making machine to obtain a protective packaging film.

Embodiment 2

[0020] Take 10g of purified and pulverized mica, mechanically grind it for 4 hours in an aqueous medium with a solid-to-liquid ratio of 1:10, add a modifier triethanolamine according to the mica mass ratio of 1.5%, continue to grind to the nanometer level, and separate the solid and liquid by a centrifuge , remove the supernatant, dry the precipitate at 100°C to obtain aluminosilicate powder, take 5g of nano-aluminosilicate powder, 1g of zinc powder, 1g of flake graphite powder, and 30g of linear low-density polyethylene powder and mix evenly. Mix the mixture in a kneader at 170°C for 30 minutes, the speed of the kneader is 40 rpm to obtain a uniformly mixed composite masterbatch, and then pass through a film-making machine to obtain a protective packaging film.

Embodiment 3

[0022] Take 10 g of purified and pulverized kaolinite powder, ball mill it in an aqueous medium with a solid:liquid ratio of 1.5:10 for 4 hours, add 0.2 ml of modifier triethanolamine, continue to grind to the nanometer level, and separate the solid and liquid through a centrifuge. The supernatant was removed, and the precipitate was dried at 100°C to obtain the modified aluminosilicate micropowder. Take 3g of modified kaolinite powder, 1g of iron micropowder, and 1g of carbon powder and mix them evenly. Take 30g of linear low-density polyethylene powder and mix them evenly. Mix the mixture in a mixer at 170°C for 30 minutes. The speed of the mixer is 40 revolutions per minute to prepare a uniformly mixed film masterbatch, and then pass through a film-making machine to obtain a protective packaging film.

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PUM

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Abstract

The invention relates to a stuffing for protecting package film and a preparation method, in particular to a package film prepared by using layered nano aluminium silicate and metal micro-powder as stuffing and a preparation method. The stuffing includes a certain amount of stuffing, such as layered silicate minerals, modifying agent, metal micro-powder and metal chloride, which are ground to nano-level and added into polymer resin in definite proportion, then mixed in a plasticator to obtain homogeneously mixed composite master batch, and the protecting package film are prepared by a film applicator. The stuffing material has rich supply, low price, and corrosion resistant, mould fungi resistant, static resistant and harmful substance intercepted and consumed performance. No environmental pollution and low energy consumption generates in the preparing process and the use of a series of protecting film prepared by the stuffing can not change the traditional film preparation technology, and the invention has simple technology and low production cost.

Description

technical field [0001] The invention relates to a protective packaging material, especially a packaging film prepared by using layered nano-aluminosilicate and metal micropowder as main fillers and its preparation method technical background [0002] With the development of society and the improvement of people's living standards, packaging materials are being further developed in the direction of functionalization and diversification. Among many functional packaging film products, barrier plastic packaging films are currently the fastest growing category. [0003] At present, in terms of food packaging materials, barrier films are mainly prepared by various methods such as ① aluminum foil composite method, ② coating composite method, and ③ co-extrusion multilayer film composite method. However, since the bending of aluminum foil during use is easy to cause damage and affect its sealing performance, the preparation of other multilayer films often has practical problems such ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K13/00C08J5/18C08L101/00C08K3/34C08K3/22C08K3/16C08K5/14
Inventor 蒋引珊薛兵宫在阳
Owner JILIN UNIV
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