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Fireproof paint for super-thin steel structure and preparation method thereof

A technology of fire-resistant coatings and profiled steel, applied in fire-resistant coatings, epoxy resin coatings, coatings, etc., can solve the problems of short fire-resistant time, low fire-resistant aging, poor corrosion resistance, etc., achieve corrosion resistance and water resistance, and high carbon layer hardness , Excellent combustion expansion effect

Inactive Publication Date: 2007-10-24
LANZHOU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, looking at the ultra-thin steel structure fire retardant coatings at home and abroad, it is generally found that the main film-forming material has a poor flame retardant effect, and the additive flame retardant system has aging decay. Poor corrosion resistance, low decoration, insufficient water resistance, poor weather resistance, short fire resistance time limit, low fire resistance aging, etc.

Method used

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  • Fireproof paint for super-thin steel structure and preparation method thereof
  • Fireproof paint for super-thin steel structure and preparation method thereof

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preparation example Construction

[0014] In the preparation method of the present invention, according to the formulation of the above-mentioned tetrabromobisphenol A epoxy resin, epichlorohydrin and tetrabromobisphenol A are added to the reaction kettle, start stirring and heat up to 90° C., and divide into 2 to 3 batches. Add 30% sodium hydroxide solution respectively, continue the reaction for 7.5 hours, then add water and xylene for washing, remove the generated sodium chloride, release the water phase of the lower layer, heat and steam the xylene to obtain the tetrabromobisphenol A ring Oxygen resin; Weigh tetrabromobisphenol A epoxy resin, high chlorinated polyethylene (HCPE), add mixed solvent and stir to dissolve, then add ammonium polyphosphate, melamine, pentaerythritol, titanium dioxide, antimony trioxide, aluminum hydroxide respectively , Zinc borate, finally add chlorinated paraffin, disperse evenly at high speed and then grind to obtain the coating component A, take the curing agent polyamide as t...

Embodiment 1

[0017] Add 65g epichlorohydrin and 50g tetrabromobisphenol A to the reactor, start stirring and be warming up to 90°C, add 95g 30% sodium hydroxide solution in 2 to 3 batches and react for 7.5 hours, then add water and The xylene is washed to remove the generated sodium chloride, the lower aqueous phase is released, and the xylene is distilled off by heating to obtain the tetrabromobisphenol A epoxy resin.

[0018] 20 g of the above-mentioned tetrabromobisphenol A epoxy and 60 g of high chlorinated polyethylene (HCPE) were weighed into a container, and 200 g of a mixed solvent was added to the container and stirred until the resin was dissolved. Then add 45g ammonium polyphosphate, 30g melamine, 15g pentaerythritol, 25g titanium dioxide, 5g antimony trioxide, 60g aluminum hydroxide, and finally add 10g chlorinated paraffin. After high-speed dispersion is uniform, grinding is carried out, and the fineness is controlled below 80 μm, which is the A component of the coating, the c...

Embodiment 2

[0020] 70g of epichlorohydrin and 50g of tetrabromobisphenol A were added to the reactor, started to stir and heated to 90 ° C, respectively added 100g of 30% sodium hydroxide solution in 2 to 3 batches to react for 7.5 hours, then added water and The xylene is washed to remove the generated sodium chloride, the lower aqueous phase is released, and the xylene is distilled off by heating to obtain the tetrabromobisphenol A epoxy resin.

[0021] 12 g of the above-mentioned tetrabromobisphenol A epoxy and 36 g of high chlorinated polyethylene (HCPE) were weighed into a container, and 120 g of a mixed solvent was added to the container and stirred until the resin was dissolved. Then add 28g ammonium polyphosphate, 18g melamine, 10g pentaerythritol, 15g titanium dioxide, 3g antimony trioxide, 36g aluminum hydroxide, 12g zinc borate, and finally add 6g chlorinated paraffin. After high-speed dispersion is uniform, grinding is carried out, and the fineness is controlled below 80 μm, w...

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Abstract

The invention discloses a method preparing for an ultra-thin inflatable steel structure fire-proof paint, which is characterized by the following: the allocation of tetrabromo-bisphenol A epoxide resin contains epichlorohydrin and tetrabromo-bisphenol A with weight rate at 1. 3-1. 5:1 and epichlorohydrin and sodium hydroxide with weight rate at 1. 0-1. 05:1; the allocation of fireproof painting is tetrabromo-bisphenol A epoxide resin and hyperchlorinated polyvinyl chloride with weight rate at 3: 1, polyphosphate, melamine, pentaerythritol with weight rate at 3:2:1, antimony trioxide and paraffin chloride with weight rate at 3:7, aluminium hydroxide and zinc borate smoke suppressor with weight rate at 10: 3. The method comprises the following steps: adding epichlorohydrin and tetrabromo-bisphenol A to the autoclave; mixing and heating at 90 Deg. C; adding caustic soda solution; keeping 7. 5 hours; washing and removing thylbenzene by heating;getting tetrabromo-bisphenol A epoxide resin; adding the mixed solvent to tetrabromo-bisphenol A epoxide resin and perchlorinated polyethylene; mixing and dissolving; adding ammonium polyphosphate, melamine, pentaerythrite, titanium dioxide, antimony oxide, aluminum hydroxide, zinc borate separately, adding chlorcosane; grinding after high-speed dispersing uniformly; mixing polyamide uniformly according to 10:1; getting the fire-proof paint.

Description

technical field [0001] The present invention relates to a coating composition, in particular to a fireproof coating. Background technique [0002] In recent years, steel structures have been widely used in buildings and residential buildings due to their high strength, strong load-bearing capacity, light weight, small footprint, and convenient component manufacturing and installation. In order to improve the fire resistance of steel structures, fire retardant coatings are generally used to coat the steel surface, which not only has decorative and protective functions, but also prevents the spread of flames and delays the expansion of fires due to the non-combustibility and flame retardancy of the coatings themselves. . Fireproof coatings for steel structures are divided into two types: intumescent type and non-intumescent type according to the fire protection mechanism. According to the coating thickness, they can be divided into thick coating type (8-50mm), thin coating ty...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/02C09D5/18B05D7/14C09D123/28
Inventor 崔锦峰杨保平周应萍王青宁郭军红
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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