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High-performance flame-retardant coating and preparation method thereof

A flame-retardant coating and high-efficiency technology, applied in the field of coatings, can solve the problems of complex coating process, coating aging and falling off, and high construction cost, and achieve the effects of improving high temperature resistance, high adhesion and improving reflectivity.

Inactive Publication Date: 2019-01-08
南京中溧知识产权代理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this kind of fireproof coating, it is required that the selected emulsion polymer must have good adhesion, durability and water resistance to the steel substrate. At present, the common styrene-modified acrylic emulsion, polyvinyl acetate emulsion, vinylidene chloride emulsion, etc. , there are deficiencies in the above items, and the aging and peeling off of the coating is serious
In addition, the drying speed of construction is slow, and it is easy to cause poor drying and cracking during construction, so multiple constructions are required, the coating process is complicated, and the construction cost is high

Method used

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  • High-performance flame-retardant coating and preparation method thereof
  • High-performance flame-retardant coating and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0025] The preparation of embodiment 1 formula (1) polymkeric substance

[0026] Step 1: Weigh 1.5 mol dimethyl phosphonate into a reaction flask, add 100 mL of dichloromethane to dissolve, then pass nitrogen gas, add 0.5 mol triethylchlorosilane, react at room temperature for 3 hours, stop the reaction, wash with salt water for 3 hours times, dried over anhydrous magnesium sulfate;

[0027] Step 2: Weigh 1 mol of 4,4'-diaminophenyl phosphine hydroxy oxide into a reaction flask, add 100ml of dichloromethane to dissolve, then blow in nitrogen, add 0.5 mol of triethylchlorosilane, react at room temperature for 3 hours, stop reaction, washed with saline for 3 times, and dried over anhydrous magnesium sulfate;

[0028] Step 3: Weigh 1 mol of the result of step 1, 1 mol of the result of step 2 and 0.01 mol of triethylamine in a polymerization kettle and mix them uniformly, react at 370°C for 8 hours, stop the reaction, cool to room temperature, dry in vacuum, wash with water, dry ...

Embodiment 2

[0029] The preparation of embodiment 2 high-efficiency flame-retardant coatings

[0030] Weigh 1000g formula (1) polymer, 200g polyurethane resin, 150g melamine and 300g 200 # Add solvent oil into the reaction kettle, stir at 80-120°C for 30 minutes, cool down to 50-60°C, add 60g tricresyl phosphate, 60g carboxymethyl cellulose, 50g dimethyl phthalate, 15g silicone defoamer F202 and 8g 2,4,6-tri-tert-butylphenol, continue to stir at 50-60°C for 15-20 minutes, cool down to 45-55°C, add 100g attapulgite, 50g titanium dioxide and 120g antimony trioxide, Stir well and cool to room temperature.

Embodiment 3

[0031] The preparation of embodiment 3 high-efficiency flame-retardant coatings

[0032] Weigh 1200g formula (1) polymer, 250g polyurethane resin, 100g melamine and 400g 200 # Add solvent oil to the reaction kettle, stir at 80-120°C for 30 minutes, cool down to 50-60°C, add 80g tricresyl phosphate, 80g carboxymethyl cellulose, 80g dimethyl phthalate, 15g silicone defoamer F202 and 10g 2,4,6-tri-tert-butylphenol, continue stirring at 50-60°C for 15-20 minutes, cool down to 45-55°C, add 120g attapulgite, 60g titanium dioxide and 100g antimony trioxide, Stir well and cool to room temperature.

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Abstract

The invention belongs to the technical field of coatings, and particularly relates to a high-performance flame-retardant coating and a preparation method thereof. The flame-retardant coating comprisesthe following components in parts by weight: 80-120 parts of a polymer of formula (1), 20-45 parts of polyurethane resin, 10-25 parts of melamine, 30-50 parts of solvent oil No. 200, 10-15 parts ofattapulgite, 3-8 parts of tricresyl phosphate, 5-10 parts of carboxymethyl cellulose, 5-10 parts of titanium dioxide, 10-15 parts of antimony trioxide, 3-8 parts of dimethyl phthalate, 1.5-2 parts ofa defoaming agent and 0.5-1 part of an antioxidant (as shown in the specification), wherein n is an integer ranging between 500 and 2000. The flame-retardant coating has advantages of high flame retardancy and easy construction, can greatly reduce labor intensity of coating, has relatively strong weather resistance, and can realize long-term protection.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a high-efficiency flame-retardant coating and a preparation method thereof. Background technique [0002] Flame-retardant coatings are the most widely used, most adaptable, and most convenient construction materials in modern engineering, and they have played a huge role in ensuring the safety of buildings. With the improvement of people's living taste, people are more fond of building materials such as wooden structures and steel structures. On the one hand, the flame-retardant coating has a beautiful effect on the above materials, on the other hand, when a fire occurs or is subjected to high temperature, the flame-retardant coating has a good protective effect on wood and steel structures, and is a good flame-retardant and heat-insulating building material. [0003] Among them, the expansion type coating can expand and foam when exposed to fire, and the fire-resis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D185/02C09D175/04C09D7/61C09D7/63C09D7/65C09D5/18C09D5/08
CPCC09D185/02C08K2003/2241C08L2201/02C08L2201/08C09D5/08C09D5/18C09D7/61C09D7/63C09D7/65C08L75/04C08L1/286C08K13/02C08K5/34922C08K3/346C08K5/523C08K3/22C08K3/2279C08K5/12
Inventor 陆福萍
Owner 南京中溧知识产权代理有限公司
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