Preparation method of acrylate copolymerization emulsion for high-adhesion heavy anti-corrosion coating

An acrylate, high adhesion technology, applied in the direction of anti-corrosion coatings, coatings, etc., can solve the problems of polymer materials and metal surfaces that are difficult to reach, fall off, and difficult to prevent corrosion, and achieve excellent anti-corrosion effects and good water resistance.

Inactive Publication Date: 2016-01-06
NANTONG REPAIR AIR CHEM BIOENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, general polymer materials are difficult to achieve an effective combination with the metal surface, and will fall off when mechanical external force occurs or the coating time is long, and it is difficult to continue to achieve the anti-corrosion effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] An acrylate copolymer emulsion for heavy-duty anti-corrosion coatings with high adhesion is composed of the following raw material proportions in parts by weight:

[0023] Name Mass (kg)

[0024] Pre-emulsion:

[0025] Deionized water 600

[0026] Sodium Lauryl Sulfate 10

[0027] Butyl Acrylate 310

[0028] Styrene 480

[0029] Acrylic 9

[0030] Methyl Acrylate 98

[0031] Methyl methacrylate 140

[0032] Reactor bottom material:

[0033] Sodium Lauryl Sulfate 16

[0034] Deionized water 650

[0035] Initiator:

[0036] Sodium persulfate 4

[0037] Deionized water 70

[0038] Coalescing aids:

[0039] Ethylene glycol butyl ether 40

[0040] The specific operation process: Dissolve 10kg of sodium lauryl sulfate in 600kg of deionized water, put it into the pre-emulsification tank, add all the monomers, and continue to stir and pre-emulsify for at least 30 minutes. Dissolve 4kg of sodium persulfate in 70kg of deionized water, put it into the initiator tank...

Embodiment 2

[0052] An acrylate copolymer emulsion for heavy-duty anti-corrosion coatings with high adhesion is composed of the following raw material proportions in parts by weight:

[0053] Name Mass (kg)

[0054] Pre-emulsion:

[0055] Deionized water 600

[0056] Sodium dodecylbenzenesulfonate 12

[0057] Butyl Acrylate 320

[0058] Styrene 490

[0059] Acrylic 7

[0060] Methyl Acrylate 90

[0061] Methyl methacrylate 150

[0062] Reactor bottom material:

[0063] Sodium Lauryl Sulfate 14

[0064] water 650

[0065] Initiator:

[0066] ammonium persulfate 4

[0067] Deionized water 70

[0068] Coalescing aids:

[0069] Ethylene glycol butyl ether 30

[0070] Specific operation process: Dissolve 12kg of sodium dodecylbenzene sulfonate in 600kg of deionized water, put it into a pre-emulsification tank, add all the monomers, and keep on stirring for at least 30 minutes for pre-emulsification. Dissolve 4kg of ammonium persulfate in 70kg of deionized water, put it into the i...

Embodiment 3

[0082] An acrylate copolymer emulsion for heavy-duty anti-corrosion coatings with high adhesion is composed of the following raw material proportions in parts by weight:

[0083] Name Mass (kg)

[0084] Pre-emulsion:

[0085] Deionized water 600

[0086] Sodium Lauryl Sulfate 10

[0087] Butyl Acrylate 310

[0088] Styrene 470

[0089] Acrylic 6

[0090] Methyl Acrylate 100

[0091] Methyl methacrylate 15

[0092] Reactor bottom material:

[0093] Sodium Lauryl Sulfate 16

[0094] water 650

[0095] Initiator:

[0096] ammonium persulfate 4

[0097] Deionized water 70

[0098] Coalescing aids:

[0099] Ethylene glycol butyl ether 40

[0100] The specific operation process: Dissolve 10kg of sodium lauryl sulfate in 600kg of deionized water, put it into the pre-emulsification tank, add all the monomers, and continue to stir and pre-emulsify for at least 30 minutes. Dissolve 4kg of ammonium persulfate in 70kg of deionized water, put it into the initiator tank, diss...

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Abstract

The invention discloses acrylate copolymerization emulsion for a high-adhesion heavy anti-corrosion coating and a preparation method thereof. The copolymerization emulsion is prepared from, by weight, 55-60 parts of butyl acrylate, 80-90 parts of styrene, 25-30 parts of methyl methacrylate, 15-20 parts of methyl acrylate, 1-2 parts of acrylic acid, 0.5-1 part of initiating agents, 4-6 parts of emulsifying agents, 200-250 parts of deionized water, 0.0001-0.0002 part of pH regulating agents and 5-10 parts of film forming auxiliaries. The preparation method comprises the steps that firstly, the deionized water and part of the emulsifying agents are mixed in a reaction kettle; secondly, an initiating agent solution and a pre-emulsifying solution are prepared separately; lastly, the initiating agent solution and the pre-emulsifying solution are dropwise added in the reaction kettle, and then the temperature is increased. According to the acrylate copolymerization emulsion for the high-adhesion heavy anti-corrosion coating and the preparation method thereof, the acrylate copolymerization emulsion is prepared through a semi-continuous dropwise adding mode, and therefore the obtained acrylate copolymerization emulsion has the good water resistance, salt spray resistance and salt water resistance; the copolymerization emulsion is suitable for preparing the water-based heavy anti-corrosion coating and can achieve the good anti-corrosion effects.

Description

technical field [0001] The invention relates to an acrylate copolymer emulsion and a preparation method thereof, in particular to a preparation method of an acrylate copolymer emulsion for heavy-duty anticorrosion coatings with high adhesion. Background technique [0002] Metal materials are one of the most widely used materials, involving various fields of civil and military industries. However, metal materials are easily corroded, and the corrosion of metals brings huge losses to national life and economy every year. In general, it is more feasible to coat the metal surface with a polymer film. The polymer film can prevent the metal material from contacting with oxygen and water vapor, and isolate the conditions for corrosion. However, it is difficult for general polymer materials to achieve an effective combination with the metal surface, and it will fall off when mechanical external force occurs or the coating time is long, making it difficult to continue to achieve the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F212/08C08F220/18C08F220/06C08F220/14C08F2/26C09D125/14C09D5/08
CPCC08F2/26C08F212/08C08F220/06C08F220/14C09D5/08C09D125/14C08F220/1804
Inventor 葛亮朱鹏戴骏骏刘磊
Owner NANTONG REPAIR AIR CHEM BIOENG
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