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Fluorine-free treatment agent, oil-proof paper and food packaging material

A technology of fluorine treatment and additives, applied in the field of functional materials, can solve problems such as poor oil resistance, unfavorable industrial production, and high viscosity

Pending Publication Date: 2021-04-13
成都优石通新材料科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, natural polymer materials such as dispersed whey protein, corn protein, isolated soybean protein, chitosan, etc. usually have problems such as high viscosity, which is not conducive to industrial production; high cost; low oil resistance level; high temperature difference and other problems
However, conventional acrylate polymers also have problems such as poor oil resistance, easy water absorption, swelling, and adhesion.

Method used

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  • Fluorine-free treatment agent, oil-proof paper and food packaging material
  • Fluorine-free treatment agent, oil-proof paper and food packaging material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0088] A fluorine-free treatment agent, comprising: a first acrylonitrile copolymer; a second acrylonitrile copolymer; and an auxiliary agent;

[0089] Wherein, the weight ratio of the first acrylonitrile copolymer to the second acrylonitrile copolymer is 1:0.8-1.2.

[0090] (1) In the embodiment of the present invention, the synthesis method of the first acrylonitrile copolymer is:

[0091] ①Based on the total mass of the first acrylonitrile copolymer, take 0.5-8% by mass of emulsifier and 25-40% by mass of deionized water into the emulsification reactor, stir and mix and add 10-15% by mass % of the first monomer acrylonitrile monomer, 5-18 mass % of the second monomer acrylate monomer, 3-12 mass % of the third monomer vinyl aromatic monomer or olefin monomer, emulsification 0.5 h~1.0h to obtain a pre-emulsion; wherein the ratio of the first monomer acrylonitrile monomer, the second monomer acrylate monomer and the third monomer vinyl aromatic monomer or olefin monomer is 1:...

Embodiment 2

[0099] Synthesis of the first acrylonitrile copolymer:

[0100] Add 1.3g of emulsifier alkylene glycol polyether and 29.5g of deionized water into the emulsification reaction kettle, stir and mix well and add 15g of acrylonitrile monomer, 10g of 2-ethylhexyl acrylate, 12g of acetic acid Vinyl ester monomer, emulsified for 1.0h to obtain a pre-emulsion;

[0101] Add 29.5g of deionized water and 1.3g of polyethylene glycol into the reaction kettle, stir for 1h, heat up to 70°C, add 10% of the total weight of the pre-emulsion, add 0.14g of initiator potassium persulfate at the same time, and heat up to 80°C ℃, react for 0.5h, when the emulsion is bluish, slowly add the remaining pre-emulsion and 1.26g of potassium persulfate, the addition time is controlled at 3h, after the addition is completed, the temperature is raised to 90°C, and the reaction is continued for 2h, then the temperature is lowered to 40°C, and filtered Finally, the glass transition temperature and weight-avera...

Embodiment 3

[0103] Synthesis of the first acrylonitrile copolymer:

[0104] Add 2.4g of emulsifier ethoxylated castor oil and 29.1g of deionized water into the emulsification reactor, stir and mix well and add 15g of acrylonitrile monomer, 10g of cyclohexyl methacrylate, 6g of ethylene monomer, 6g of 1-methylvinylbenzene was emulsified for 1.0h to obtain a pre-emulsion;

[0105] Add 29.1g of deionized water and 1g of sodium lauryl sulfate into the reaction kettle, stir for 1h, heat up to 70°C, add 10% of the total weight of the pre-emulsion, add 0.14g of initiator potassium persulfate at the same time, and heat up to 80°C, react for 0.5h, when the emulsion is bluish, slowly add the remaining pre-emulsion and 1.26g of potassium persulfate, the addition time is controlled at 4h, after the addition is completed, the temperature is raised to 90°C, and the reaction is continued for 2h, and then the temperature is lowered to 30°C. After filtering, the glass transition temperature and weight av...

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Abstract

The invention belongs to the technical field of functional materials, and particularly relates to a fluoride-free treating agent, oil-proof paper and a food packaging material. The fluoride-free treating agent can be applied to packaging materials in a coating and spraying mode, and the problem that in the prior art, plastic film packaging paper is not recycled, so that the film stays in nature for a long time, and white pollution is caused is solved; and meanwhile, the dosage of the fluoride-free treatment agent is far lower than that of film treatment, so that the cost is saved, and the benefit is improved. The fluoride-free treatment agent disclosed by the invention is a water-based emulsion used in a food packaging material, not only can meet the requirements of water and oil resistance of food, but also has certain tolerance to high temperature, and does not have obvious yellowing and discoloring phenomena when being used at 180 DEG C.

Description

technical field [0001] The invention relates to the technical field of functional materials, in particular to a fluorine-free treatment agent, greaseproof paper and food packaging materials. Background technique [0002] Waterproof and oil-proof packaging materials are indispensable in our human life, but the commonly used waterproof and oil-proof packaging materials on the market are often polypropylene, polypropylene resin, polyethylene, etc. According to incomplete statistics, the annual consumption of The number of plastic fast food boxes has exceeded 30 billion. However, these plastic packaging materials are often difficult to dispose of after use, causing great damage to the human environment. Therefore, how to replace these non-degradable packaging materials has become a hot spot of concern. [0003] And paper material has always been a commonly used packaging material in our daily life. It is recyclable and easy to degrade, so it has little damage to the environmen...

Claims

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Application Information

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IPC IPC(8): D21H27/10D21H19/14D21H19/20D21H21/14D21H21/16D21H23/50D21H23/52
CPCD21H27/10D21H19/14D21H19/20D21H21/14D21H21/16D21H23/50D21H23/52
Inventor 曹步军
Owner 成都优石通新材料科技有限责任公司
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