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Bromine carbon alkyd resin fireproof enamel and its preparation method

A technology of bromocarbon alkyd and brominated epoxy resin, which is applied in the direction of fireproof coatings, magnetic coatings, coatings, etc., can solve the problems of coating performance degradation, increase equipment or furniture maintenance costs, shorten the service life of coatings, etc., and achieve improvement The effect of fire performance

Inactive Publication Date: 2012-10-24
LANZHOU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The commonly used flame retardant method is to add a large amount of flame retardant additives to the coating formula to achieve the purpose of flame retardancy, but the addition of flame retardant additives to achieve effective flame retardant effect, its high addition amount will lead to the decline of coating performance, physical and mechanical The reduction of performance and medium resistance shortens the service life of the coating, and the corresponding recoating will increase the maintenance cost of equipment or furniture

Method used

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  • Bromine carbon alkyd resin fireproof enamel and its preparation method
  • Bromine carbon alkyd resin fireproof enamel and its preparation method

Examples

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preparation example Construction

[0033] The preparation steps of bromocarbon alkyd resin are:

[0034] In a 500ml four-neck flask equipped with a stirring device, an oil-water separator and a thermometer, add soyoleic acid, pentaerythritol, and phthalic anhydride in sequence according to the formula, protect with nitrogen, start stirring and condense water, and add the formula when the temperature rises to 120°C amount of catalyst lithium hydroxide and xylene, and continue to heat up to 180°C, start heat preservation, the heat preservation process is 50~60min; after the heat preservation stage is over, add brominated epoxy resin according to the formula, so that the temperature is controlled at 180°C~200 ℃, the reaction time is 90 minutes to 120 minutes, when the acid value is within 10mgKOH / g, the reaction can be stopped, the temperature is lowered to 180 ℃, the water and xylene in the oil-water separator are released, and the amount of nitrogen is increased to release the bromine The xylene in the carbon al...

Embodiment 1

[0040] Embodiment 1. The preparation of bromocarbon alkyd resin

[0041] In a 500ml four-neck flask equipped with a stirring device, an oil-water separator and a thermometer, add 60 parts of soy oil, 10 parts of pentaerythritol, and 10 parts of phthalic anhydride in sequence by mass parts, pass nitrogen protection, start stirring and condensing water, and heat up Add 0.02 parts of catalyst lithium hydroxide and 4.98 parts of xylene at 120 ° C, and continue to heat up to 180 ° C, start the heat preservation process, the heat preservation process is 50~60min; after the heat preservation stage, add 15 parts of brominated epoxy resin to control the temperature Between 180°C and 200°C, the reaction time is 90 minutes to 120 minutes. When the acid value is within 10mgKOH / g, the reaction can be stopped, the temperature is lowered to 180°C, and the water and xylene in the oil-water separator are released. Distill the xylene in the bromocarbon alkyd resin with nitrogen gas; lower the t...

Embodiment 2

[0042] Embodiment 2. Preparation of drier

[0043] In 100g200# solvent oil, add 5.5g cobalt isooctanoate, 22.2g manganese isooctanoate, 22.2g zirconium isooctanoate, and disperse at high speed for 2 hours under the condition of 3500r / mim to get bromocarbon alkyd resin facing type fireproof coating catalyst dry agent.

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Abstract

The invention relates to a bromine carbon alkyd resin fireproof enamel and its preparation method. The formula of the bromine carbon alkyd resin fireproof enamel is composed of, by mass: 35%-42% of bromine carbon alkyd resin, 8%-9.6% of antimony trioxide, 20%-24% of a pigment, 1%-1.2% of molybdenum sesquioxide, 0.1%-0.12% of dimethyl silicon oil, 0.9%-1.08% of a drier, and 35%-42% of a solvent. The preparation method comprises the steps of: adding the formula required amounts of the solvent, the antimony trioxide, the pigment, and the molybdenum sesquioxide into a multi-purpose dispersion mill in order, conducting high speed dispersion for 30-60min, reducing the stirring speed, adding the bromine carbon alkyd resin to carry out further dispersion for 20-40min, adding the dimethyl silicon oil, using a cone mill to mill the mixture to a desired degree of fineness, then performing dispersion in the multi-purpose dispersion mill for 10-20min, and adding the drier which is then dispersed uniformly, thus obtaining the product.

Description

technical field [0001] The invention relates to polymer chemistry and polymer coating composition technology. Background technique [0002] Alkyd resin is widely used in my country's coating industry, mainly used as coatings and paints, widely used in metal protection, furniture, vehicles, construction, etc. Industry, also used in the manufacture of molded plastics. Alkyd resin can be formulated with other resins to form a variety of self-drying or drying enamel paints, primers, topcoats and varnishes with different properties, which are widely used in bridges and other buildings, as well as machinery, vehicles, ships, aircrafts, instruments and other coatings. [0003] Alkyd resin exhibits excellent film-forming properties due to its low relative molecular weight before curing to form a film, which makes the coating film after curing to have a very high gloss, and it can be made into a one-component coating, which is easy to apply and widely used application. However, ord...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/08C09D7/12C09D5/18C09D5/23C08G63/682
Inventor 郭军红张俊彦周胜蓝杨保平崔锦峰周应萍李军吴纯倾彩霞陈碧碧崔卓魏小赟
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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