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BTA-loaded POSS-GO anti-corrosion flame retardant as well as preparation method and application of BTA-loaded POSS-GO anti-corrosion flame retardant

A production method and flame retardant technology, applied in the field of materials, can solve the problems that anti-corrosion coatings cannot achieve fire prevention effects, base steel structure corrosion, and poor heat insulation effects, etc., to achieve long-term protection functions, strong oxidation resistance, and improved The effect of water resistance

Inactive Publication Date: 2020-05-19
NINGBO METRO GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The anti-corrosion effect of the existing fire-proof coatings for steel structures alone is poor, and cannot adapt to the severe marine atmospheric corrosion environment, and the base steel structure is often severely corroded when there is no fire; the existing anti-corrosion coatings alone cannot achieve the fire-proof effect; In the environment of high humidity and high salt spray, the combination of traditional anti-corrosion primer and fire-proof topcoat has limited effect on anti-corrosion and fire prevention, and the following problems will occur: the shielding effect on chloride ions and water vapor in the marine atmospheric environment is not good, and the resistance Poor corrosion, poor heat insulation effect, poor adhesion and wear resistance, easy to crack at high temperature, fast heat transfer rate

Method used

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  • BTA-loaded POSS-GO anti-corrosion flame retardant as well as preparation method and application of BTA-loaded POSS-GO anti-corrosion flame retardant
  • BTA-loaded POSS-GO anti-corrosion flame retardant as well as preparation method and application of BTA-loaded POSS-GO anti-corrosion flame retardant
  • BTA-loaded POSS-GO anti-corrosion flame retardant as well as preparation method and application of BTA-loaded POSS-GO anti-corrosion flame retardant

Examples

Experimental program
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preparation example Construction

[0044] Concrete, the preparation method of the POSS-GO anticorrosion flame retardant of this loading BTA can comprise:

[0045] 20mg of graphene oxide (GO) was added into 40ml of dimethyl sulfoxide (DMSO) for ultrasonic dispersion to obtain a GO dispersion,

[0046] Add 210 mg cage polysilsesquioxane (POSS) and 66 mg paraacetaldehyde or paraformaldehyde into the GO dispersion and stir evenly, heat and react in an argon atmosphere at 180°C for 18 hours, wash the reaction with acetone after the reaction is completed product and obtain cage polysilsesquioxane-graphene oxide composite (POSS-GO),

[0047] Then add 10mg POSS-GO and 50mg benzotriazole (BTA) into 10ml ethanol, stir and mix in a vacuum to form a mixed system. After the reaction, the reaction system is washed with water and centrifuged (6000rpm), and then the centrifuged product Transfer to a vacuum oven and dry at 50-60°C for 24 hours to finally obtain a BTA-loaded cage polysilsesquioxane-graphene oxide composite, tha...

Embodiment 1

[0062] The POSS-GO anticorrosion flame retardant of the load BTA that adopts in the present embodiment is prepared by following method:

[0063] 20mg of graphene oxide (GO) was added into 40ml of dimethyl sulfoxide (DMSO) for ultrasonic dispersion to obtain a GO dispersion.

[0064] Add 210 mg of cage-type polysilsesquioxane (POSS) and 66 mg of paraacetaldehyde into the GO dispersion and stir evenly, and heat the reaction at 180°C for 18 hours in an argon atmosphere. After the reaction is completed, the reaction product is washed with acetone to obtain a cage Type polysilsesquioxane-graphene oxide composite (POSS-GO);

[0065] Add 10mg POSS-GO and 50mg benzotriazole (BTA) into 10ml ethanol and stir in vacuum, wash with water and perform centrifugation (6000rpm), then transfer the centrifuged product to a vacuum oven at 50-60°C for 24 hours, Finally, a BTA-loaded cage polysilsesquioxane-graphene oxide composite is obtained, that is, the BTA-loaded POSS-GO anti-corrosion flame ...

Embodiment 2

[0078] The POSS-GO anticorrosion flame retardant of the load BTA that adopts in the present embodiment is prepared by following method:

[0079] 20mg of graphene oxide (GO) was added into 40ml of dimethyl sulfoxide (DMSO) for ultrasonic dispersion to obtain a GO dispersion.

[0080] Add 210 mg of cage-type polysilsesquioxane (POSS) and 66 mg of paraacetaldehyde into the GO dispersion and stir evenly, and heat the reaction at 180°C for 18 hours in an argon atmosphere. After the reaction is completed, the reaction product is washed with acetone to obtain a cage Type polysilsesquioxane-graphene oxide composite (POSS-GO); then add 10mgPOSS-GO and 50mg benzotriazole (BTA) into 10ml ethanol and vacuum stir, wash with water and carry out centrifugation (6000rpm ), and then transfer the centrifuged product to a vacuum oven at 50-60°C for 24 hours of drying treatment, and finally obtain a BTA-loaded cage polysilsesquioxane-graphene oxide composite, that is, the BTA-loaded POSS-GO anti-...

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Abstract

The invention discloses a BTA-loaded POSS-GO anti-corrosion flame retardant as well as a preparation method and application thereof. The preparation method of the anti-corrosion flame retardant comprises the following steps: uniformly mixing polyhedral oligomeric silsesquioxane and polyacetaldehyde or paraformaldehyde with a graphene oxide dispersion liquid, and carrying out a heating reaction for16-20h at a temperature of 160-200 DEG C in a protective atmosphere so as to obtain a polyhedral oligomeric silsesquioxane-graphene oxide compound; and putting the polyhedral oligomeric silsesquioxane-graphene oxide compound and benzotriazole into a solvent to obtain a polyhedral oligomeric silsesquioxane-graphene oxide compound loaded with benzotriazole, namely the BTA-loaded POSS-GO anti-corrosion flame retardant. The anti-corrosion flame retardant provided by the invention can improve the long-term protection function of a coating, and meanwhile, Si-O and Si-C inorganic carbon layers are formed in the thermal decomposition process to block substance transfer and heat transfer, so that the effects of flame retardance, smoke suppression and corrosion prevention are achieved.

Description

technical field [0001] The invention relates to an anti-corrosion and fire-proof coating, in particular to a BTA-loaded POSS-GO anti-corrosion and flame retardant and its preparation method and application, which belong to the field of material technology. Background technique [0002] In the marine atmospheric environment, a large number of facilities and equipment such as ports, ships, offshore platforms, island and reef projects, and rail transit are constructed with steel structure materials. In case of fire or when the temperature reaches 540 ° C, the yield strength, ultimate strength and elasticity of the steel structure will be reduced. The modulus will increase sharply, which will eventually lead to an increase in its strain, thus losing its bearing capacity and partially or completely collapsing. Therefore, fire protection must be carried out for the steel structure. In addition, the high-humidity, high-salt fog marine and atmospheric environment can easily cause met...

Claims

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Application Information

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IPC IPC(8): C09D133/04C09D163/00C09D5/18C09D5/08
CPCC09D5/08C09D5/18C09D133/04C09D163/00C08K13/06C08K9/12C08K5/3475
Inventor 赵宁宁崔道金徐焜张伊伍权刘志伟刘栓
Owner NINGBO METRO GRP