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Room-temperature self-crosslinkable styrene-acrylic emulsion resistant to ethanol dilution and preparation method for same

A styrene-acrylic emulsion and self-crosslinking technology, used in applications, inks, household appliances, etc., can solve the problem of limiting the application range of water-based inks, the production efficiency of water-based inks cannot reach the production efficiency of solvent-based inks, and the drying rate of water-based inks is difficult to further improve. and other problems, to achieve the effect of increasing the density of film formation, increasing the cross-linking density and improving the compatibility.

Inactive Publication Date: 2012-06-27
FOSHAN SOUTHERN PACKAGING +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the addition of ethanol in the traditional styrene-acrylic emulsion is limited, which makes it difficult to further improve the drying rate of water-based inks.
Due to the limitation of drying rate, the production efficiency of water-based ink cannot reach that of solvent-based ink, which ultimately limits the application range of water-based ink

Method used

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  • Room-temperature self-crosslinkable styrene-acrylic emulsion resistant to ethanol dilution and preparation method for same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] (1) Preparation of mixed monomer pre-emulsion: first add 7g methyl methacrylate, 15g butyl acrylate, 15g styrene, 1.2g acrylic acid, 7g octadecyl methacrylate into a container equipped with a mechanical stirring device Ester, 1.8g AAEM, 0.64g nonylphenol polyoxyethylene ether (Rhodia company NP-10), 0.53g solid content is 58% nonylphenol polyoxyethylene ether ammonium sulfate aqueous solution (Rhodia company CO- 436) and 20g of water, and then stirred at a speed of 500rpm for about 30min to obtain a mixed monomer pre-emulsion;

[0042] (2) Preparation of seed emulsion: Add 0.19g sodium bicarbonate, 0.25g nonylphenol polyoxyethylene ether (Rhodia NP-10), and 0.21g nonylphenol with a solid content of 58% to a four-neck flask Polyoxyethylene ether ammonium sulfate aqueous solution (Rhodia CO-436), 16.01g of water and part of the mixed monomer pre-emulsion (the specific mass is 6% of the mixed monomer pre-emulsion obtained in step (1)), heating up To 75°C, add 0.07g ammoni...

Embodiment 2

[0047] (1) Preparation of mixed monomer pre-emulsion: first add 12g methyl methacrylate, 6g butyl acrylate, 22g styrene, 1g acrylic acid, 5g octadecyl methacrylate into a container equipped with a mechanical stirring device , 1g AAEM, 0.64g nonylphenol polyoxyethylene ether (Rhodia NP-10), 0.53g solid content of 58% nonylphenol polyoxyethylene ether ammonium sulfate solution (Rhodia CO-436) and 20g of water, then stirred at a speed of 500rpm for about 30min to obtain a mixed monomer pre-emulsion;

[0048] (2) Preparation of seed emulsion: Add 0.19g sodium bicarbonate, 0.25g nonylphenol polyoxyethylene ether (Rhodia NP-10), and 0.21g nonylphenol with a solid content of 58% to a four-neck flask Polyoxyethylene ether ammonium sulfate aqueous solution (Rhodia CO-436), 16.36g of water and the above-mentioned mixed monomer pre-emulsion accounting for 6% of the total mass of the mixed monomer pre-emulsion, heated to 74°C, and added 0.07g Ammonium persulfate was reacted for 15 minute...

Embodiment 3

[0053] (1) Preparation of mixed monomer pre-emulsion: first add 10g methyl methacrylate, 7g butyl acrylate, 19g styrene, 1.2g methacrylic acid, 8g octadecyl acrylate to a container equipped with a mechanical stirring device Ester, 1.8g DAAM, 0.64g nonylphenol polyoxyethylene ether (Rhodia company NP-10), 0.53g solid content is 58% nonylphenol polyoxyethylene ether ammonium sulfate aqueous solution (Rhodia company CO- 436) and 20g of water, and then stirred at a speed of 500rpm for about 30min to obtain a mixed monomer pre-emulsion;

[0054] (2) Preparation of seed emulsion: Add 0.15g sodium bicarbonate, 0.29g nonylphenol polyoxyethylene ether (Rhodia NP-10), and 0.21g nonylphenol with a solid content of 58% to a four-neck flask Polyoxyethylene ether ammonium sulfate aqueous solution (Rhodia CO-436), 16g of water and the above-mentioned mixed monomer pre-emulsion accounting for 6% of the total mass of the mixed monomer pre-emulsion, the temperature was raised to 76°C, and 0.07g...

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Abstract

The invention discloses a room-temperature self-crosslinkable styrene-acrylic emulsion resistant to ethanol dilution and a preparation method for the same. The room-temperature self-crosslinkable styrene-acrylic emulsion resistant to ethanol dilution comprises the following components: styrene, an acrylate monomer A, an acrylate monomer B, a hydrophilic monomer, a crosslinking monomer, an emulsifier, an initiator, a pH value buffer, a neutralizer and water; and in the preparation method disclosed by the invention, the room-temperature self-crosslinkable styrene-acrylic emulsion resistant to ethanol dilution is prepared by adding a seed emulsion and using semicontinuous polymerization process. The acrylate monomer A containing a long-chain ester group is added during synthesis, so that the prepared styrene-acrylic emulsion can be directly diluted by adding ethanol; and the crosslinking monomer is added during synthesis, so that the solvent resistance, wear resistance and drying speed of emulsion dry film can be improved and increased. The room-temperature self-crosslinkable styrene-acrylic emulsion resistant to ethanol dilution disclosed by the invention can be used for preparing water-based ink and water-based gloss oil satisfying medium-speed and high-speed printing requirements.

Description

technical field [0001] The invention relates to the technical field of polymer synthesis, in particular to a room temperature self-crosslinking styrene-acrylic emulsion resistant to ethanol dilution and a preparation method thereof. [0002] Background technique [0003] Since water-based ink does not contain volatile organic solvents, it greatly reduces the emission of organic volatiles, thereby reducing air pollution and ensuring the health of employees. Conditions require strict packaging and printing products, so it is gradually replacing solvent ink and is widely used in society. [0004] As the main body of water-based ink, water-based polymer resin acts as a binder in water-based ink, disperses and stabilizes pigments, makes the ink fluid, and provides adhesion fastness to the printing substrate, so that the pattern printed by the ink maintains a stable color. The dry ink layer is water resistant. However, compared with solvent-based inks, since water-base...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F212/08C08F220/18C08F216/14C08F2/24C08J3/24C09D11/10C09D11/106
Inventor 马志平王小妹马军刘长来
Owner FOSHAN SOUTHERN PACKAGING
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