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Flame-retardant waterproof exterior wall paint coating

A technology for exterior wall paints and coatings, applied in the direction of fireproof coatings, wax coatings, polyether coatings, etc., can solve the problems of affecting appearance, aging of exterior wall paints, poor flame retardancy, etc., to prevent the intrusion of water and improve water resistance , The effect of waterproof durability

Inactive Publication Date: 2021-02-23
石鑫
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the currently used exterior wall paints are only used to decorate and protect the wall from the external environment, and often do not have flame retardancy, or have poor flame retardancy. Some waterproof exterior wall paints are unevenly mixed, resulting in The waterproof performance of the exterior wall coating is different, and due to long-term rain and sun erosion, the exterior wall paint is prone to aging, which leads to poor waterproofness of the local wall surface, and mottled walls will appear when it rains, which will affect the appearance.

Method used

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  • Flame-retardant waterproof exterior wall paint coating
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  • Flame-retardant waterproof exterior wall paint coating

Examples

Experimental program
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Effect test

preparation example Construction

[0033] S1. Preparation of flame retardant components

[0034] Add 38.0g of p-hydroxybenzaldehyde, 150mL of dry acetonitrile and 35.0g of diethanolamine in sequence in the reaction flask, stir at room temperature and dropwise add 29.3g of phenylphosphoryl dichloride into the reaction system within 60min. Raise the temperature to reflux for 24 hours; filter off the diethanolamine hydrochloride, concentrate the filtrate by a rotary evaporator to remove part of the solvent, then pour it into deionized water, and a white solid is precipitated. Washing 3 times, drying in vacuum at 50°C for 48 hours, to obtain intermediate 1 of flame retardant component;

[0035] The reaction formula is as follows:

[0036]

[0037] Then add the flame retardant component intermediate 1 into the reaction flask, add 10% sodium carbonate aqueous solution, start stirring, and when the temperature rises to 66-68°C, slowly add 40% hydrogen peroxide solution dropwise, and the dropwise addition is comple...

Embodiment 1

[0044] A flame-retardant and waterproof exterior wall paint, the weight percentage of each raw material is: 60% epoxy resin, 8% propylene styrene emulsion, 5% phosphorus-containing waterproofing agent, 10% talcum powder, 1% chlorinated paraffin, polyether Polyol 4%, vinyl acetate 6.5%, defoamer 0.5%, ethanol 5%;

[0045] The preparation method of the flame-retardant and waterproof exterior wall paint coating specifically comprises the following steps:

[0046] (1) Curing modification of epoxy resin

[0047] After heating the epoxy resin to 110°C to melt, add phosphorus-containing waterproofing agent in 3 times, add 50% of phosphorus-containing waterproofing agent for the first time, add 30% of phosphorus-containing waterproofing agent for the second time, and add phosphorus-containing waterproofing agent for the third time 10% of the waterproofing agent, after stirring evenly, heat preservation and curing reaction for 2 hours, and a cured modified epoxy resin is obtained, and...

Embodiment 2

[0052] A flame-retardant and waterproof exterior wall paint, the weight percent of each raw material is: epoxy resin 70%, propylene styrene emulsion 5%, phosphorus-containing waterproofing agent 3%, talcum powder 5%, chlorinated paraffin 0.7%, polyether Polyol 2%, vinyl acetate 4%, defoamer 0.3%, ethanol 10%;

[0053] The preparation method of the flame-retardant and waterproof exterior wall paint coating specifically comprises the following steps:

[0054] (1) Curing modification of epoxy resin

[0055] After heating the epoxy resin to 110°C to melt, add phosphorus-containing waterproofing agent in 3 times, add 50% of phosphorus-containing waterproofing agent for the first time, add 30% of phosphorus-containing waterproofing agent for the second time, and add phosphorus-containing waterproofing agent for the third time 10% of the waterproofing agent, after stirring evenly, heat preservation and curing reaction for 2 hours, and obtained a cured modified epoxy resin;

[0056]...

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Abstract

The invention discloses a flame-retardant waterproof exterior wall paint coating, which is prepared from the following raw materials by weight percentage: 55-75% of epoxy resin, 5-8% of a styrene-acrylic emulsion, 3-6% of a phosphorus-containing waterproof agent, 5-10% of talcum powder, 0.5-1.5% of chlorinated paraffin, 2-5% of polyether polyol, 4-9% of vinyl acetate, 0.3-0.8% of a defoaming agentand 5-10% of ethanol. By preparing the phosphorus-containing waterproof agent with waterproof and flame-retardant properties and connecting the phosphorus-containing waterproof agent into the epoxy resin, the phosphorus-containing waterproof agent and the epoxy resin are firmly connected together through ring-opening polymerization and chemical bonds, and in the preparation process of the exterior wall paint coating, the situation that the waterproof agent or the flame retardant is mixed unevenly does not exist; and when a coating film is prepared, the situation of non-uniform waterproof andflame-retardant properties is prevented, and meanwhile, when the coating is eroded by rainwater and sunlight, the waterproof and flame-retardant components of the coating cannot be broken, so that theaging of the exterior wall paint is effectively prevented, and the service life of the exterior wall paint is prolonged.

Description

technical field [0001] The invention belongs to the technical field of coatings, in particular to a flame-retardant and waterproof exterior wall paint coating. Background technique [0002] Exterior wall paint is mainly used in buildings, and it has two functions: one is to protect the building from the external environment or minimize its impact. After the exterior wall paint is applied to the building, it can form a continuous coating on the surface. This kind of coating film has the functions of corrosion resistance, pollution resistance, ultraviolet radiation resistance and bacterial erosion resistance, which can protect steel bars from corrosion and concrete from carbonization and chlorination, so as to prolong the life of buildings; the second is to decorate and beautify buildings, After the exterior wall paint is painted on the surface of the building, it can form a coating film with different colors, different gloss and different textures, so as to beautify the envir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D133/04C09D191/06C09D171/00C09D5/18C08G59/54
CPCC08G59/54C08L2201/02C08L2205/035C09D5/18C09D163/00C08L33/04C08L91/06C08L71/00C08K3/34C08K5/101
Inventor 石鑫
Owner 石鑫
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