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Anticorrosive flame-retardant polyaspartic acid polyurea waterproof paint and preparation method thereof

A technology of polyaspartic acid and aspartic acid ester, applied in the direction of anti-corrosion coatings, fire-resistant coatings, etc., can solve the problems of anti-corrosion and poor flame retardancy, and achieve good weather resistance, high elongation at break, and environmental friendliness Effect

Inactive Publication Date: 2018-12-18
ANHUI KUAILAI WATERPROOFING & ANTI CORROSION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: the existing polyaspartate polyurea waterproof coating has poor corrosion resistance and flame retardancy

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A kind of anticorrosion flame-retardant polyaspartic acid polyurea waterproof coating, comprises A component and B component, and described A component contains the prepolymer of 2% polyisocyanate and 98% anticorrosion flame-retardant blocked isocyanate; Wherein The prepolymer of the anti-corrosion and flame-retardant blocked isocyanate uses toluene diisocyanate and polyether polyol as the basic monomer, the phosphorus-nitrogen synergistic flame retardant is the hard segment chain extender, and the modified graphene oxide is the post-chain extender. Rice husk silica is prepared as a synergistic flame retardant;

[0032] The B component contains 40% polyaspartic acid ester, 30% polymerized modified polyaspartic acid ester, 3% pigment, 25% filler, and 2% auxiliary agent;

[0033] The mass ratio of component A and component B is 35:100.

[0034] Described polyisocyanate is dicyclohexylmethane diisocyanate (HMDI), hexamethylene diisocyanate (HDI) trimer 3300, diphenylmetha...

Embodiment 2

[0050] A kind of anticorrosion flame-retardant polyaspartic acid polyurea waterproof coating, comprises A component and B component, and described A component contains the prepolymer of 35% polyisocyanate and 65% anticorrosion flame-retardant blocked isocyanate; Wherein The prepolymer of the anti-corrosion and flame-retardant blocked isocyanate uses toluene diisocyanate and polyether polyol as the basic monomer, the phosphorus-nitrogen synergistic flame retardant is the hard segment chain extender, and the modified graphene oxide is the post-chain extender. Rice husk silica is prepared as a synergistic flame retardant;

[0051] The B component contains 50% polyaspartic acid ester, 25% polymerized modified polyaspartic acid ester, 3% pigment, 20% filler, and 2% auxiliary agent;

[0052] The mass ratio of component A and component B is 40:100.

[0053] Described polyisocyanate is dicyclohexylmethane diisocyanate (HMDI), hexamethylene diisocyanate (HDI) trimer 3300, diphenylmeth...

Embodiment 3

[0069] A kind of anticorrosion flame-retardant polyaspartic acid polyurea waterproof coating, comprises A component and B component, and described A component contains the prepolymer of 30% polyisocyanate and 70% anticorrosion flame-retardant blocked isocyanate; Wherein The prepolymer of the anti-corrosion and flame-retardant blocked isocyanate uses toluene diisocyanate and polyether polyol as the basic monomer, the phosphorus-nitrogen synergistic flame retardant is the hard segment chain extender, and the modified graphene oxide is the post-chain extender. Rice husk silica is prepared as a synergistic flame retardant;

[0070] The B component contains 49% polyaspartic acid ester, 24% polymerized modified polyaspartic acid ester, 2% pigment, 24% filler, and 1% auxiliary agent;

[0071] The mass ratio of component A and component B is 38:100.

[0072] Described polyisocyanate is dicyclohexylmethane diisocyanate (HMDI), hexamethylene diisocyanate (HDI) trimer 3300, diphenylmeth...

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PUM

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Abstract

The invention discloses an anticorrosive flame-retardant polyaspartic acid polyurea waterproof paint and a preparation method thereof. The anticorrosive flame-retardant polyaspartic acid polyurea waterproof paint consists of a component A and a component B. The component A is a prepolymer of polyisocyanate and anticorrosive flame-retardant blocked isocyanate, the prepolymer of the anticorrosive flame-retardant blocked isocyanate takes toluene diisocyanate and polyether polyol as basic monomers, a phosphorus-nitrogen synergistic flame-retardant is used as a hard segment chain extender, and therice husk silica is used as a synergistic flame retardant, and the component B is polyaspartic acid ester, polymeric modified polyaspartic acid ester, a filler and a small amount of additives. The paint has long gelation time, high tensile strength, high elongation at break, excellent water resistance, flame retardancy, anti-corrosion performance, good weather resistance, and environmental friendliness, at the same time, the paint can be applied with manual construction, and does not require special large-scale spraying equipment, and the application field is wide.

Description

technical field [0001] The invention belongs to the technical field of waterproof coatings, in particular to an anti-corrosion and flame-retardant polyaspartic acid polyurea waterproof coating and a preparation method thereof. Background technique [0002] Polyurea waterproof coating (full name is spraying polyurea elastomer coating) is a new type of solvent-free and pollution-free waterproof coating developed to meet the needs of environmental protection. It has fast curing speed, excellent physical properties and good wear resistance. features. However, polyurea waterproof coating needs to be applied by professional spraying equipment, which not only increases the construction cost, but also is not conducive to the operation of general construction personnel, and its outdoor weather resistance is poor, which limits its application in many occasions; in addition, its curing speed is too high. Fast, there is not enough time to infiltrate the surface of the substrate, which ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/02C09D5/08C09D5/18C08G18/76C08G18/48C08G18/10
CPCC09D175/02C08G18/10C08G18/4833C08G18/7614C08L2201/02C08L2201/08C08L2205/025C09D5/08C09D5/18C08L75/02C08K13/06C08K9/00C08K9/06C08K3/36C08K9/04C08K3/04
Inventor 蒋能
Owner ANHUI KUAILAI WATERPROOFING & ANTI CORROSION
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