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Water-based acrylic resin anti-corrosive insulation coating and preparation method of anti-corrosive insulation coating

A technology of water-based acrylic and insulating coatings, applied in the direction of epoxy resin coatings, anti-corrosion coatings, coatings, etc., can solve the problems of easy corrosion, poor water resistance, foaming, etc., to increase cross-linking points, improve water resistance and water resistance Corrosion and other properties, the effect of enhancing activity

Inactive Publication Date: 2019-01-18
CHANGSHA XIAORU INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a water-based acrylic resin anti-rust insulating coating and its preparation method, to solve the problem that the water-based acrylic resin coating has poor water resistance, is prone to rust in actual use, and the adhesion performance is not stable enough, which is very easy to cause damage to the coating. Problems such as foaming after covering the surface of the sheet

Method used

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  • Water-based acrylic resin anti-corrosive insulation coating and preparation method of anti-corrosive insulation coating
  • Water-based acrylic resin anti-corrosive insulation coating and preparation method of anti-corrosive insulation coating

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preparation example Construction

[0021] The invention provides a kind of preparation method of waterborne acrylic resin antirust insulating coating, wherein, comprise the following steps:

[0022] 1) In the presence of an initiator, mix octamethylcyclotetrasiloxane and divinyltetramethyldisiloxane under a nitrogen atmosphere and react at a temperature of 100-170°C to obtain Premix X1;

[0023] 2) In the presence of a solvent, stir and mix the epoxy resin and the premix X1 with the modification accelerator to prepare the modified epoxy resin X2;

[0024] 3) mixing water-based acrylic resin, modified epoxy resin X2, filler, azobisisobutyronitrile and water and then grinding to prepare water-based acrylic resin anti-rust insulating coating;

[0025] Wherein, the filler includes at least calcium carbonate and zinc phosphate.

[0026] The present invention has the following beneficial effects: the present invention catalyzes octamethylcyclotetrasiloxane in the presence of an initiator, forms an activation center...

Embodiment 1

[0038] 1) Under a nitrogen atmosphere, put 800mL of octamethylcyclotetrasiloxane and 1mL of tetramethylammonium hydroxide at a temperature of 50°C and stir and mix for 1 hour, then add 700mL of divinyltetramethyldisiloxane Stir and mix the alkanes at 70°C for 0.5h, then raise the temperature to 150°C, stir and mix for 3h, then distill under reduced pressure to obtain the premix X1;

[0039] 2) Stir and mix 10mL cyclohexanone, 5g epoxy resin, 3g premix X1 and 0.2mL n-tetrabutyl titanate at 150°C to prepare modified epoxy resin X2;

[0040] 3) After mixing 100g of water-based acrylic resin, 30g of modified epoxy resin X2, 10g of filler (the weight ratio of calcium carbonate: zinc phosphate: nano-titanium dioxide is 1:0.3:0.05), 2g of azobisisobutyronitrile and 30mL of water Grind to obtain the water-based acrylic resin antirust insulating coating A1.

Embodiment 2

[0042] 1) Under a nitrogen atmosphere, put 1100mL of octamethylcyclotetrasiloxane and 1mL of tetramethylammonium hydroxide at a temperature of 60°C and stir and mix for 2 hours, then add 800mL of divinyltetramethyldisiloxane Stir and mix the alkanes at 80°C for 1 hour, raise the temperature to 170°C, stir and mix for 5 hours, then distill under reduced pressure to obtain the premix X1;

[0043] 2) Stir and mix 10mL cyclohexanone, 20g epoxy resin, 8g premix X1 and 1mL n-tetrabutyl titanate at 170°C to prepare modified epoxy resin X2;

[0044] 3) After mixing 100g of water-based acrylic resin, 50g of modified epoxy resin X2, 20g of filler (the weight ratio of calcium carbonate: zinc phosphate: nano-titanium dioxide is 1:0.6:0.08), 5g of azobisisobutyronitrile and 50mL of water Grind to obtain the water-based acrylic resin antirust insulating coating A2.

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Abstract

The invention provides a water-based acrylic resin anti-corrosive insulation coating and a preparation method of the anti-corrosive insulation coating. The preparation method comprises the following steps: 1) octamethylcyclotetrasiloxane and divinyl-tetramethyl-disiloxanc are mixed under a nitrogen atmosphere in the presence of an initiator and placed at a temperature of 100 to 170 DEG C to obtaina premix X1; 2) epoxy resin and the premix X1 and a modified accelerator are stirred in the presence of a solvent to obtain a modified epoxy resin X2; 3) the water-based acrylic resin, the modified epoxy resin X2, a filler, azodiisobutyronitrile and water are mixed and ground to obtain a water-based acrylic resin anti-corrosive insulation coating, wherein the filler comprises at least calcium carbonate and zinc phosphate. Good resistance to water and corrosion is achieved.

Description

technical field [0001] The invention relates to the field of water-based acrylic resin coatings, in particular to a water-based acrylic resin antirust insulating coating and a preparation method thereof. Background technique [0002] As a kind of water-based paint, water-based acrylic resin paint does not use a large amount of organic solvents compared with traditional solvent-based paints, so it has the advantages of low price, high safety, and is more environmentally friendly. At the same time, It also has good insulating properties, thus enabling it to be widely used in various fields. However, due to its poor leveling, it is prone to popping after coating, and the viscosity is difficult to be effectively controlled, so it is difficult to have good adhesion. At the same time, in actual use, problems such as foaming and falling off are prone to occur after long-term immersion in water, which also makes its anti-corrosion performance poor. Contents of the invention [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D163/00C09D183/07C09D5/08C09D5/25
CPCC08K2003/2241C08K2003/265C08K2003/328C08L2205/03C09D5/00C09D5/08C09D133/00C08L63/00C08L83/04C08K3/26C08K3/32C08K3/22C08K13/02
Inventor 不公告发明人
Owner CHANGSHA XIAORU INFORMATION TECH CO LTD
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