Special functional material for food package and preparation method of special functional material

A functional material and food packaging technology, applied in the field of food packaging, can solve problems such as economic losses, achieve low consumption, stable quality, and broad market prospects

Inactive Publication Date: 2014-12-10
上海三承高分子材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In recent years, due to the restriction of technical barriers in foreign trade, my country's export food has been frequently blocked by foreign countries due to packaging quality problems, causing serious economic losses. The safety of food packaging materials is facing severe ch

Method used

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  • Special functional material for food package and preparation method of special functional material
  • Special functional material for food package and preparation method of special functional material
  • Special functional material for food package and preparation method of special functional material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Embodiment 1. Preparation of special functional material for food packaging one

[0050] (1) Barium sulfate pretreatment, first dehumidify the filler barium sulfate in an oven at 80°C until the water content of the filler drops below 0.5%, then put 49.5 parts of the filler into a high-speed kneader at a temperature of about 100°C, Add stearic acid coupling agent at 1.0%, adjust the speed to 250r min -1 , stirring at high speed for 10 minutes. It should be noted that when the stearic acid coupling agent is used, there must be no water in the system, and the barium sulfate must be dried before treatment;

[0051](2) 21 parts of metallocene linear low density polyethylene HPR18H27DX, 49.5 parts of barium sulfate after step (1) pretreatment, 22.5 parts of titanium dioxide titanium dioxide, 3 parts of lubricant paraffin, 3 parts of lubricant hard Zinc fatty acid is added to a high-speed kneader and stirred, the temperature does not exceed 80 degrees, and the stirring time ...

Embodiment 2

[0055] Embodiment 2. Preparation two of special functional materials for food packaging

[0056] (1) Barium sulfate pretreatment, first dehumidify the filler barium sulfate in an 80°C oven until the water content of the filler drops below 0.5%, then put 48 parts of the filler into a high-speed kneader at a temperature of about 100°C, Add stearic acid coupling agent at 1.2%, adjust the speed to 250r min -1 , stirring at high speed for 10 minutes. It should be noted that when the stearic acid coupling agent is used, there must be no water in the system, and the barium sulfate must be dried before treatment;

[0057] (2) 22 parts of metallocene linear low density polyethylene HPR18H27DX, 48 parts of barium sulfate after step (1) pretreatment, 23 parts of titanium dioxide titanium dioxide, 2.4 parts of lubricant paraffin, 3.4 parts of lubricant hard Zinc fatty acid is added to a high-speed kneader and stirred, the temperature does not exceed 80 degrees, and the stirring time is ...

Embodiment 3

[0059] Embodiment 3. Performance testing

[0060] The detection of food packaging materials is generally to simulate different foods, prepare several soaking solutions, and measure the samples after soaking them at a certain temperature for a certain period of time.

[0061] Common soaking liquids are: water (represents neutral food and beverage)

[0062] 4% acetic acid (represents acidic food and beverage)

[0063] 20% or 60% ethanol (represents alcohol and alcoholic beverages)

[0064] n-Hexane (represents oily food)

[0065] Detection method:

[0066] (1) Sampling method: The sampling quantity of each batch shall not be less than 10, each 500ML, respectively indicate: product name, batch number, sampling date.

[0067] (2) Soaking conditions:

[0068] Distilled water: 60°C, keep warm for 2 hours;

[0069] 4% acetic acid: 60°C, keep warm for 2h;

[0070] 65% ethanol: soak at room temperature (20°C) for 2 hours;

[0071] n-Hexane: soak at room temperature (20°C) for 2...

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Abstract

The invention discloses a special functional material for a food package and a preparation method of the special functional material. The special functional material is prepared from the following components in percentage by weight: 20-22 percent of matrix resin, 46-50 percent of barium sulfate, 1.0-1.5 percent of stearic acid coupling agent, 21-23 percent of titanium dioxide and 3-6 percent of lubricant, wherein the matrix resin is metallocene linear low-density polyethylene (mLLDPE) with the solution flow rate of 2.0-3.0 and the density of 0.915-0.920, and the lubricant is paraffin and zinc stearate. With the adoption of the special functional material, the content of n-hexane as master batch evaporated residues is far lower than that in the industrial standard, the consumption of potassium permanganate is low, and all physical properties and sensory indexes are good. The special functional material is simple and economic in the preparation process, is environment-friendly and energy-saving and has wide market prospects.

Description

technical field [0001] The invention relates to the field of food packaging, more specifically, to a special functional material for n-hexane restricted food packaging and a preparation method thereof. Background technique [0002] In recent years, due to the restriction of technical barriers in foreign trade, my country's export food has been frequently blocked by foreign countries due to packaging quality problems, causing serious economic losses. The safety of food packaging materials is facing severe challenges. As a big country, the country has strict regulations on the production and use of food packaging materials. However, the use of toxic and harmful substances in our country, especially the illegal use of waste materials to produce food packaging and containers, is very serious. [0003] n-Hexane (C 6 h 14 ) is a colorless liquid with low toxicity and a faint special smell. n-Hexane is a chemical solvent, mainly used as a solvent for the polymerization of olefins...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08K13/06C08K9/04C08K3/30C08K3/22C08K5/01C08K5/098B29B9/06
CPCC08L23/0815C08L2314/06
Inventor 熊小勇张宇
Owner 上海三承高分子材料科技有限公司
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