High-solid coating containing polyvinylidene chloride for paper coating and preparation method of coating

A polyvinylidene chloride, high solid content technology, applied in paper coating, coating, papermaking, etc., can solve the problems of limited application, no barrier performance, no heat sealing performance, etc., to achieve enhanced thermal stability and stable reaction. , the effect of saving energy

Inactive Publication Date: 2012-08-29
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

However, paper packaging has a series of other problems, such as no heat sealing performance, no barrier performance to water vapor and oxygen, etc., which greatly limits its application in the packaging field

Method used

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  • High-solid coating containing polyvinylidene chloride for paper coating and preparation method of coating
  • High-solid coating containing polyvinylidene chloride for paper coating and preparation method of coating
  • High-solid coating containing polyvinylidene chloride for paper coating and preparation method of coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Prepare raw materials according to the following components (unit: kg)

[0022]

[0023]

[0024] Synthetic method: First, mix and stir 0.4kg sodium paraffin sulfonate, 0.5kg sodium lauryl sulfate, all reaction monomers and 4kg deionized water for 1 hour at a stirring speed of 100 rpm to obtain a pre-emulsion A; Dissolve 0.005kg of potassium persulfate and 0.005kg of tert-butyl hydroperoxide with 2kg of deionized water to form solution B; dissolve 0.01kg of sodium formaldehyde sulfoxylate with 2kg of deionized water to form a solution c. First add 22kg of deionized water, 10% of pre-emulsion A, and 1% of solution B into the polymerization kettle, start stirring at a stirring speed of 70 rpm, protect with nitrogen, raise the temperature to 50°C for 0.5h, etc. The reaction material changed from milky white to translucent with blue halo. At the same time, the remaining pre-emulsion A, remaining solution B and solution C were continuously added dropwise, kept at 53°...

Embodiment 2

[0026] Prepare raw materials according to the following components (unit: kg)

[0027]

[0028]

[0029] Synthetic method: First, mix and stir 0.6 kg of sodium paraffin sulfonate, 0.8 kg of sodium lauryl sulfate, all reaction monomers and 7 kg of deionized water for 2 hours at a stirring speed of 90 rpm to obtain a pre-emulsion A; Dissolve 0.01 kg of tert-butyl hydroperoxide with 2.5 kg of deionized water to form solution B; dissolve 0.015 kg of sodium formaldehyde sulfoxylate with 3 kg of deionized water to form solution C. First add 24.5kg of deionized water, 15% of pre-emulsion A, and 2% of solution B into the polymerization kettle, start stirring at a stirring speed of 60 rpm, protect with nitrogen, raise the temperature to 50°C for 1 hour, etc. The reaction material changed from milky white to translucent with blue halo. At the same time, the remaining pre-emulsion A, remaining solution B and solution C were continuously added dropwise, kept at 50°C for 5 hours, an...

Embodiment 3

[0031] Prepare raw materials according to the following components (unit: kg)

[0032]

[0033] Synthetic method: First, mix and stir 0.05kg sodium paraffin sulfonate, 0.08kg sodium lauryl sulfate, all reaction monomers and 1kg deionized water for 1 hour at a stirring speed of 150 rpm to obtain a pre-emulsion A; Dissolve 0.001 kg of tert-butyl hydroperoxide with 0.2 kg of deionized water to form solution B; dissolve 0.001 kg of sodium formaldehyde sulfoxylate with 0.2 kg of deionized water to form solution C. First add 2.1kg of deionized water, 7% of pre-emulsion A, and 3% of solution B into the polymerization kettle, start stirring at a stirring speed of 65 rpm, protect with nitrogen, heat up to 52°C for 0.5h, Waiting for the reaction material to change from milky white to translucent with blue halo. At the same time, the remaining pre-emulsion A, remaining solution B and solution C were continuously added dropwise, kept at 54°C for 4.5 hours, and the pre-emulsion A was d...

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Abstract

The invention provides a high-solid coating containing polyvinylidene chloride for paper coating and a preparation method of the high-solid coating. The coating is prepared by the following raw materials in percentage by weight: 40-58% of vinylidene chloride, 0.01-2% of acrylate monomer, 0.01-2% of the functional monomer, 0.005-0.02% of oxidation-type initiator, 0.005-0.05% of reduction-type initiator, 0.1-3% of emulsifier, 0.01%-0.1% of electrolyte and 38-45% of deionized water. When the high-solid coating is coated on paper, the physical properties of the paper on separating oxygen and water vapor and heat-seal strength can be improved, and further, the high-solid coating containing polyvinylidene chloride can be widely used in food packaging.

Description

technical field [0001] The invention relates to a high-solid polyvinylidene chloride coating for paper coating and a preparation method thereof. After coating, physical properties such as oxygen barrier, water vapor and heat sealing strength of the paper can be improved, which belongs to the field of polymer materials and can be applied in the food packaging industry. technical background [0002] At present, the huge demand for plastic packaging has promoted the rapid development of the plastic industry. However, since plastics are made of petroleum products, this will indirectly endanger petroleum resources, and most plastics cannot be degraded naturally, and the pollution of waste plastics to the environment has become increasingly prominent. In order to solve the above problems, the research and development of degradable plastics is in full swing, but the current facts have proved that the technology is not mature enough, and the cost of industrialization is too high. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H19/22D21H19/20D21H19/48
Inventor 黄宏存邢青涛李明彪胡连芹朱清梅王恩飞
Owner HAINAN BNK WATER BASED NEW MATERIAL CO LTD
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