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Bromine-carbon flame-retardant type acrylate ester waterproof coating and preparation method thereof

An acrylate and waterproof coating technology, applied in fire-resistant coatings, coatings, etc., can solve the problems of unsustainable flame retardant performance, unsatisfactory flame retardant effect, easy reduction of oxygen index, etc., and achieve large-scale production and broad market. Application prospect, good durability effect

Inactive Publication Date: 2019-05-21
SICHUAN SHUYANG WATERPROOF MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing flame-retardant waterproof coatings, there is usually the problem that the flame-retardant effect is not ideal, and after a period of use, its oxygen index is easy to decrease, the flame-retardant performance cannot be maintained for a long time, and the durability is not good enough

Method used

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  • Bromine-carbon flame-retardant type acrylate ester waterproof coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] (1) Add 2kg of XL-70, 0.1kg of K12, 15kg of butyl acrylate, 5kg of isooctyl acrylate, 10kg of styrene, 7kg of pentabromobenzyl acrylate, 1kg of methyl methacrylate and 50kg of deionized water into the reaction vessel , and stir evenly to obtain a pre-emulsion.

[0046] (2) Take a pre-emulsion with 30% of the total mass of the pre-emulsion obtained in step (1), heat it up to 65° C., add 0.7 kg of ammonium persulfate quickly at one time, stir, and react at 80° C. for 5 minutes.

[0047] (3) Heat the mixed system of step (2) to 85°C, drop the remaining pre-emulsion therein, and then add dropwise the aqueous solution of ammonium persulfate (mixed 1.4kg ammonium persulfate and 10kg deionized water) ), the two-step dropwise addition takes a total of 1.5h, and after the dropwise addition, it is incubated at 85°C for 0.7h.

[0048] (4) Cool down the mixing system in step (3) to 40° C., add ammonia water with a mass concentration of 1% to adjust the pH of the system to 7.5-8.5,...

Embodiment 2

[0051] (1) Add 4kg of XL-70, 0.4kg of K12, 25kg of butyl acrylate, 10kg of isooctyl acrylate, 25kg of styrene, 15kg of pentabromobenzyl acrylate, 3kg of methyl methacrylate and 60kg of deionized water into the reaction vessel , and stir evenly to obtain a pre-emulsion.

[0052] (2) Take a pre-emulsion with 50% of the total mass of the pre-emulsion obtained in step (1), heat it up to 65° C., add 1.3 kg of ammonium persulfate quickly at one time, stir, and react at 85° C. for 15 minutes.

[0053] (3) Heat the mixed system of step (2) to 90°C, drop the remaining pre-emulsion therein, and then add dropwise the aqueous solution of ammonium persulfate (mixed 2.6kg ammonium persulfate and 20kg deionized water) ), the two-step dropwise addition takes a total of 2.5h, and after the dropwise addition, it is incubated at 90°C for 1.3h.

[0054] (4) Cool down the mixing system in step (3) to 50°C, add ammonia water with a mass concentration of 1% to adjust the pH of the system to 7.5-8.5...

Embodiment 3

[0057] (1) Add 3kg of XL-70, 0.2kg of K12, 20kg of butyl acrylate, 7kg of isooctyl acrylate, 15kg of styrene, 10kg of pentabromobenzyl acrylate, 2kg of methyl methacrylate and 55kg of deionized water into the reaction vessel , and stir evenly to obtain a pre-emulsion.

[0058] (2) Take a pre-emulsion with 40% of the total mass of the pre-emulsion obtained in step (1), heat it up to 65° C., add 1 kg of ammonium persulfate quickly at one time, stir, and react at 82° C. for 10 minutes.

[0059] (3) Heat the mixed system of step (2) to 86°C, drop the remaining pre-emulsion therein, and then add the aqueous solution of ammonium persulfate (by mixing 2kg of ammonium persulfate with 15kg of deionized water) , the two-step dropwise addition takes a total of 2h, and after the dropwise addition is completed, it is incubated at 86°C for 1h.

[0060] (4) Cool down the mixing system in step (3) to 45°C, add ammonia water with a mass concentration of 1% to adjust the pH of the system to 7....

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Abstract

The invention discloses a bromine-carbon flame-retardant type acrylate ester waterproof coating and a preparation method thereof. The bromine-carbon flame-retardant type acrylate ester waterproof coating comprises 40-60 parts of acrylic flame-retardant emulsion, 10-20 parts of organic silicone-modified acrylate ester emulsion, 0.4-1.3 parts of a defoaming agent, 0.1-0.8 parts of a dispersing agent, 20-40 parts of grinding calcite carbonate, 5-20 parts of titanium dioxide, 3-8 parts of chlorinated paraffin and 0.1-0.5 parts of a thickening agent. Through the combined use of the acrylic flame-retardant emulsion, the organic silicone-modified acrylate ester emulsion and other raw materials in the components, the waterproof coating has a synergistic effect, is resistant to high temperature and high in flame retardant performance, can realize long-term flame retardation and possesses high durability. Furthermore, the preparation process is simple and the product is high in security, thereby being worthy of popularization.

Description

technical field [0001] The invention relates to the field of flame-retardant waterproof coatings, in particular to bromocarbon flame-retardant acrylate waterproof coatings. Background technique [0002] Acrylic waterproof coating is a one-component water-emulsion waterproof coating made of pure acrylic polymer emulsion as the base material and adding other additives. The waterproof film formed after the waterproof coating is cured has certain extensibility, elastic-plasticity, crack resistance, impermeability and weather resistance, and can play the role of waterproof, anti-seepage and protection. The waterproof coating has good temperature adaptability, easy operation, easy repair and maintenance. [0003] Most of the raw materials used in coatings are flammable organic chemicals. In case of high temperature environment or fire, flammable coatings will inevitably lead to more serious disasters. Therefore, it is of great significance to study flame-retardant waterproof coat...

Claims

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Application Information

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IPC IPC(8): C09D133/08C09D133/04C09D5/18C08F220/18C08F212/08C08F220/22C08F220/14
Inventor 骆晓彬杜勇
Owner SICHUAN SHUYANG WATERPROOF MATERIAL
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