Heat sealing PVDC emulsion having antifogging function and preparation method thereof

A heat-sealed, emulsion technology, applied in the field of new polymer materials, can solve the problems of no anti-fog performance, customers can't see clearly, products reduce the desire to buy, etc., and achieve the effect of stable emulsion performance, easy control, and good oxygen

Inactive Publication Date: 2013-09-25
HAINAN BNK WATER BASED NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the production and distribution process of sandwiches, they need to be sterilized by high temperature and then packaged directly, and then refrigerated. In order to let customers see the product clearly, they will use window packaging, but because it contains a certain amount of moisture, during the packaging and storage process, due to Changes in temperature will easily generate a layer of water mist on the inner layer of the packaging bag, which seriously affects the appearance and image of the product, making it difficult for customers to see the product clearly and reduce their desire to buy
But the existing PVDC on the market has no anti-fog performance, such as patent application CN101358054A

Method used

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  • Heat sealing PVDC emulsion having antifogging function and preparation method thereof
  • Heat sealing PVDC emulsion having antifogging function and preparation method thereof
  • Heat sealing PVDC emulsion having antifogging function and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A heat-sealable PVDC emulsion with anti-fogging function. The raw materials are prepared according to the following components (unit: kg)

[0030]

[0031] The above-mentioned preparation method of heat-sealable PVDC emulsion with anti-fogging function: 1. First, 30.0 kg of vinylidene chloride, 0.7 kg of butyl acrylate, and 0.65 kg of methacrylic acid are thoroughly mixed and stirred for 1 hour to obtain mixed monomer A; 0.5kg of sodium lauryl sulfate was mixed and stirred with 7.0kg of deionized water for 1h, and the stirring speed was 80 rpm to obtain emulsifier B; dissolve 0.02kg of tert-butyl hydrogen peroxide with 5.2kg of deionized water. Initiator C; Dissolve 0.02 kg of sodium formaldehyde sulfoxylate with 5.2 kg of deionized water to form initiator D. Add the remaining deionized water, 1.95kg of mixed monomer A, 0.2kg of emulsifier B, 0.1kg of initiator C, and 0.8kg of glacial acetic acid in the polymerization kettle, turn on the stirring, and the stirring speed is...

Embodiment 2

[0034] A heat-sealable PVDC emulsion with anti-fogging function. The raw materials are prepared according to the following components (unit: kg)

[0035]

[0036]

[0037] The above-mentioned preparation method of heat-sealing PVDC emulsion with anti-fogging function: 1. First, 48.0kg vinylidene chloride, 5.6kg butyl acrylate, 4.0kg acrylic acid are thoroughly mixed and stirred for 1.2h to obtain mixed monomer A; Mix 0.28kg of sodium lauryl sulfate with 15.0kg of deionized water and stir for 1h at a stirring speed of 80 rpm to obtain emulsifier B; dissolve 0.07kg of tert-butyl hydroperoxide with 11.0kg of deionized water Prepare initiator C; Dissolve 0.07 kg of sodium formaldehyde sulfoxylate with 11.0 kg of deionized water to prepare initiator D. Add the remaining deionized water, 5.0kg of mixed monomer A, 0.3kg of emulsifier B, 0.25kg of initiator C, and 2.7kg of glacial acetic acid in the polymerization kettle. The stirring speed is 70 rpm. , Protected by nitrogen, heated to ...

Embodiment 3

[0040] A heat-sealable PVDC emulsion with anti-fogging function. The raw materials are prepared according to the following components (unit: kg)

[0041]

[0042] The preparation method of the above heat-sealable PVDC emulsion with anti-fogging function: 1. Firstly, 70.0 kg of vinylidene chloride, 9.5 kg of butyl acrylate, 0.4 kg of acrylic acid, and 1.5 kg of methacrylic acid are thoroughly mixed and stirred for 1 hour to obtain Mix monomer A; mix 7.5 kg of sodium lauryl sulfate with 20.0 kg of deionized water and stir for 1 h at a stirring speed of 80 revolutions / min to obtain emulsifier B; combine 0.03 kg of tert-butyl hydrogen peroxide with 15.0 Dissolve kg of deionized water to form initiator C; dissolve 0.03 kg of sodium formaldehyde sulfoxylate with 15.0 kg of deionized water to form initiator D. Add the remaining deionized water, 6.2kg of mixed monomers, 0.58kg of emulsifier B, 0.35kg of initiator C, and 1.4kg of glacial acetic acid to the polymerizer. Turn on the stirrin...

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Abstract

The invention provides a heat sealing PVDC emulsion having an antifogging function. The heat sealing PVDC emulsion having the antifogging function is prepared from the following raw materials: by weight, 88-97% of PVDC copolymer emulsion, 0.2-3% of a dispersant and 2-10% of antifogging agents. The PVDC copolymer emulsion is prepared by copolymerization of 35-45% of vinylidene chloride, 1-5% of an monomer of acrylates, 0.1-3% functional monomers, 0.005-0.05% of an oxidation type initiator, 0.005-0.05% of a reduction type initiator, 0.2-4% of an emulsifier, 0.01-0.1% of electrolytes, 0.05-2% of a pH regulator, 0.02-0.1% of a defoaming agent and 42-55% of deionized water. The invention also provides a preparation method of the heat sealing PVDC emulsion having the antifogging function. The preparation method has the advantages of simple processes and easy control, and the prepared emulsion has stable performances.

Description

Technical field [0001] The invention relates to a heat-sealable PVDC emulsion with anti-fogging function and a preparation method thereof, and belongs to the field of new polymer materials. Background technique [0002] Fast foods are popular among consumers because of their convenience and speed. As more and more people realize the dangers of fast foods such as hamburgers, they have a trend toward the end of the road. Sandwiches are healthy, convenient, and diverse. Will lead a new round of healthy fast food concepts. In the production and circulation process of sandwiches, they need to be directly packaged after high-temperature sterilization, and then stored under refrigeration. In order to allow customers to see the product, window packaging is used. However, because it contains a certain amount of moisture, during the packaging and storage process, the product Changes in temperature can easily produce a layer of water mist on the inner layer of the packaging bag, which seri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F214/08C08F220/18C08F220/06C08F4/40C08F2/26C08L27/08
Inventor 黄宏存朱清梅袁业兴邢青涛
Owner HAINAN BNK WATER BASED NEW MATERIAL CO LTD
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