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Surface-ornamental styrene-acrylic bromine-carbon latex fire-proof paint and preparation thereof

A technology of styrene-propyl bromide carbon latex and fireproof coatings, which is applied in the direction of fireproof coatings, latex paints, wax coatings, etc., and can solve the problem that the film-forming substance does not have a flame-retardant effect, dissolves, oozes, migrates, volatilizes, and reduces the fire resistance of fireproof coatings. Efficacy and other issues, to overcome the effects of short fire prevention time, high hardness and strong impact resistance

Inactive Publication Date: 2008-09-03
LANZHOU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing intumescent fire retardant coatings all adopt additive flame retardant system, and the film-forming material has no flame retardant effect, and the additive flame retardant system will dissolve, ooze, migrate, and volatilize after the coating is formed due to its small relative molecular weight. And other phenomena, with the passage of time, the fire-proof and flame-retardant effect will not be achieved when a fire is actually encountered, and there will be aging decay, which greatly reduces the fire-proof effect of the fire-resistant coating.

Method used

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Examples

Experimental program
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Effect test

preparation example Construction

[0088] The preparation method of facing type styrene-propyl bromide carbon latex fireproof coating, according to above-mentioned prescription batching, its steps are:

[0089] (1) 95% ethanol is added in the reactor, then add phenol, add sodium bromide, concentrated hydrochloric acid after the phenol dissolves completely, sodium bromate is made into saturated aqueous solution, drop in the reactor at room temperature, Dropping is completed within 2 hours, react at room temperature for 1 hour, then add 10% sodium bisulfite dropwise until no bromine is produced, filter with suction, dry the filter cake under reduced pressure at a temperature not higher than 70°C, and obtain a white Tribromophenol.

[0090] (2) Add tribromophenol and acetone into the reaction kettle, stir to dissolve the tribromophenol. Add acryloyl chloride dropwise under stirring, the dropping time is controlled at 120min±5min, the reaction temperature is controlled at 10±2°C, and the reaction is continued for ...

Embodiment 1

[0095] (1) Add 100.00 kg of 95% ethanol to the reactor, add 9.40 kg of phenol, stir until completely dissolved, add 22.66 kg of sodium bromide, 33.00 kg of concentrated hydrochloric acid (36.5%), and add a saturated solution of sodium bromate dropwise at room temperature 63.00Kg, dripping after 2 hours, after reacting at room temperature for 1 hour, add 10% sodium bisulfite dropwise until no bromine is produced (detected with potassium starch starch test paper), filter with suction, and filter cake at 70°C under reduced pressure After drying, white tribromophenol was obtained. The distilled ethanol is recycled.

[0096] (2) Add 10.00 kg of tribromophenol and 27.00 kg of acetone into the reaction kettle, and stir to dissolve the tribromophenol. Add 4.07 kg of acryloyl chloride dropwise with stirring, the dropwise addition time is 120min±5min, the reaction temperature is controlled at 10±2°C, and the reaction is continued for 8 hours after the dropwise addition to obtain 2,4,6-...

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Abstract

The invention provides a decorative type styrene-acrylic bromine carbon latex fire-retardant coatings and preparation method thereof. The induction of flameretardant element bromine and synthesis of intrinsic flamertardant polymer resin can increase ageing effect and flame retardant property of fire-retardant coatings, and conquer the defects of fireretardant system of addition type fire-retardant coatings such as effusion, movement and volatilization. The phenol is used as raw material to produce tribromo phenol in the present of sodium bromate and sodium bromide, furthermore the tribromo phenol reacts with acryloyl chloride to obtain acrylic 2,4,6-tribromo phenyl ester. The styrene-acrylic bromine carbon latex is produced through polymerizing the acrylic 2,4,6-tribromo phenyl ester with butyl acrylate, methyl methacrylate, styrene and acrylic acid by free radical. Finally the decorative type styrene-acrylic bromine carbon latex fire-retardant coatings can be produced by using styrene-acrylic bromine carbon latex as base material and mixing the ammonium polyphosphate, melamine, dipentaerythritol, molybdenum hemitrioxide, antimony oxide, zinc borate, boron-moisten soil and titanium white powder.

Description

technical field [0001] The invention relates to a paint composition, in particular to a phenylpropanyl bromide latex fireproof paint. Background technique [0002] According to the form, fire-resistant coatings can be divided into water-based, solvent-based and powder-based; according to the fire-proof mechanism, they can be divided into intumescent and non-expandable; ) and ultra-thin (over 3mm) [0003] Patent CN 1394923A water-based thin intumescent steel structure fireproof coating and its preparation method, using acrylic emulsion with high melting temperature as the main film-forming substance, mixed with chlorine partial emulsion in an appropriate amount, using ammonium polyphosphate, pentaerythritol, and melamine as the flame-retardant foaming system, Expandable expanded graphite is added as a foaming reinforcing material, the foaming layer can reach 30-50 times of the original coating, and the fire resistance limit is 75min (thickness 3mm). [0004] Patent CN 1824...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/08C09D5/02C09D5/18C09D191/06C09D183/04
Inventor 杨保平崔定伟崔锦峰周应萍郭军红
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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