Paper coating water-based emulsion and preparation method and applications thereof

A water-based emulsion and coating technology, which is applied in the direction of paper coating, coating, papermaking, etc., can solve the problems of poor barrier properties of coating materials and unusable packaging, and achieve reduced monomer residues, good stability, and single The effect of low body residue

Active Publication Date: 2015-04-08
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

The patent application of CN200410011366 discloses a kind of completely biodegradable polylactic acid coating material, and it is made up of the plasticized polylactic acid composition on paper layer and paper layer, can be used for making paper cup, lunch box, disposable packaging etc.; But This coating material has poor barrier properties and cannot be used for food packaging

Method used

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  • Paper coating water-based emulsion and preparation method and applications thereof
  • Paper coating water-based emulsion and preparation method and applications thereof
  • Paper coating water-based emulsion and preparation method and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 1. Raw material preparation:

[0022] 1) Mixed monomer preparation: mix 92.5 kg of vinylidene chloride, 6 kg of acrylonitrile, 1.3 kg of methyl methacrylate, and 0.2 kg of methacrylic acid to obtain a mixed monomer;

[0023] 2) Initiator preparation: dissolve 160 g of tert-butyl hydroperoxide in 8 kg of water to obtain an aqueous solution of tert-butyl hydroperoxide, and dissolve 160 g of sodium formaldehyde sulfoxylate in 8 kg of water to obtain an aqueous solution of sodium formaldehyde sulfoxylate;

[0024] 3) Mixed emulsifier preparation: Mix 1.6kg of sodium dodecylsulfonate, 780g of 2A-1 emulsifier and COPS-11.4kg and add water to 20kg to prepare a mixed emulsifier;

[0025] 2. Seed aggregation:

[0026] Add 50kg of water to the reaction kettle, add 100g of sodium dodecylbenzenesulfonate, 280g of MA-80, and 30g of ammonium acetate, seal the kettle, replace the gas three times, vacuumize, inhale mixed monomer with a formula amount of 3%, and cold disperse 0.5h, he...

Embodiment 2

[0033] 1. Raw material preparation:

[0034] 1) Mixed monomer preparation: mix 111 kg of vinylidene chloride, 7.2 kg of acrylonitrile, 1.56 kg of methyl methacrylate, and 0.24 kg of methacrylic acid to obtain a mixed monomer;

[0035] 2) Initiator preparation: dissolve 240 g of tert-butyl hydroperoxide in 8 kg of water to obtain an aqueous solution of tert-butyl hydroperoxide, and dissolve 240 g of sodium formaldehyde sulfoxylate in 8 kg of water to obtain an aqueous solution of sodium formaldehyde sulfoxylate;

[0036] 3) Mixed emulsifier preparation: mix 1.8kg of sodium dodecyl sulfonate, 780g of 2A-1 emulsifier and COPS-12kg and add water to 20Kg to prepare a mixed emulsifier;

[0037] 2. Seed aggregation:

[0038] Add 30kg of water to the reaction kettle, add 130g of sodium dodecylbenzenesulfonate, 300g of MA-80, and 30g of ammonium acetate, seal the kettle, replace the gas three times, vacuumize, inhale the mixed monomer with a formula amount of 3%, and cold disperse 0....

Embodiment 3

[0042] 1. Raw material preparation:

[0043] 1) Mixed monomer preparation: mix 92.5 kg of vinylidene chloride, 6 kg of acrylonitrile, 1.3 kg of ethyl methacrylate, and 0.2 kg of methacrylic acid to obtain a mixed monomer;

[0044] 2) Initiator preparation: dissolve 160 g of tert-butyl hydroperoxide in 8 kg of water to obtain an aqueous solution of tert-butyl hydroperoxide, and dissolve 160 g of sodium formaldehyde sulfoxylate in 8 kg of water to obtain an aqueous solution of sodium formaldehyde sulfoxylate;

[0045] 3) Mixed emulsifier preparation: mix 1.6kg of sodium dodecylbenzenesulfonate, 780g of 2A-1 emulsifier and 1.4kg of sodium ethylene sulfonate and add water to 20kg to prepare a mixed emulsifier;

[0046] 2. Seed aggregation:

[0047]Add 50kg of water to the reaction kettle, add 100g of sodium dodecylbenzenesulfonate, 280g of MA-80, and 30g of ammonium acetate, seal the kettle, replace the gas three times, vacuumize, inhale mixed monomer with a formula amount of 3%,...

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Abstract

The invention discloses a paper coating water-based emulsion and a preparation method and applications thereof. Aiming at the problem that the barrier property of the current paper coating emulsion is not good, the invention provides the paper coating water-based emulsion. The method comprises the following steps: using a certain amount of vinylidene chloride, acrylonitrile, methacrylate and methacrylic acid as a mixed monomer, selecting a special seed emulsifier and a mixed emulsifier, adopting seed emulsion polymerization, and finally obtaining the paper coating water-based emulsion. The paper coating water-based emulsion has good stability, environmental protection and good barrier property. A vacuum desorption post-processing method is adopted in the later period of emulsion polymerization, so that the monomer residual quantity of the obtained water-based emulsion is low. The prepared coated paper has no foreign smell, cannot pollute food or drugs, and is more beneficial to applications to the package field of food, drugs and the like.

Description

technical field [0001] The invention relates to an aqueous emulsion, in particular to an aqueous emulsion for paper coating and its preparation method and application. Background technique [0002] At present, plastic film is widely used as a packaging material in the packaging field. Plastic film has the advantages of transparency, low cost, good applicability, and high strength. However, plastic film is not easy to recycle, non-degradable, and has poor printability. Extensive use will cause waste of petroleum resources. Therefore, Other packaging materials will need to be used instead. As a degradable material, coated paper has the advantages of opacity, glossiness and good printing performance, and can be used for packaging, especially food and pharmaceutical packaging. The patent application of CN200410011366 discloses a kind of completely biodegradable polylactic acid coating material, and it is made up of the plasticized polylactic acid composition on paper layer and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F214/10C08F220/14C08F220/18C08F220/06C08F2/26C08F4/40D21H19/20
Inventor 方勇邢青涛
Owner HAINAN BNK WATER BASED NEW MATERIAL CO LTD
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