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A kind of waterborne intumescent fireproof coating based on modified graphene oxide and preparation method thereof

A technology of fire retardant coating and oxide stone, applied in fire retardant coatings, epoxy resin coatings, coatings, etc., to achieve excellent fire resistance and physical and chemical properties, solve the problem of easy loss, and good fire prevention effect.

Active Publication Date: 2019-05-14
XINHE NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The present invention aims to solve the deficiencies of existing fireproof coatings, and proposes a water-based intumescent fireproof coating based on modified graphene oxide and its preparation method

Method used

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  • A kind of waterborne intumescent fireproof coating based on modified graphene oxide and preparation method thereof
  • A kind of waterborne intumescent fireproof coating based on modified graphene oxide and preparation method thereof
  • A kind of waterborne intumescent fireproof coating based on modified graphene oxide and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Step 1: Preparation of Modified Graphene Oxide (GO-KHTD)

[0039] Add 50g graphene oxide (GO), 50ml deionized water and 800ml ethanol successively in the container equipped with stirring device, condensing reflux and nitrogen protection, after ultrasonic 30min, add 223g aminopropyltriethoxysilane, heat up to After reacting for 8 hours at 60°C, filter and wash with acetone to obtain aminopropyltriethoxysilane-modified graphene oxide (GO-APTMS). Then add 100g GO-APTMS into a container equipped with a stirring device, condensing reflux and nitrogen protection, ultrasonically disperse in 600ml N,N-dimethylformamide, add 298g triglycidyl isocyanurate, and heat up to 90°C After 12 hours of reaction, 216 g of DOPO was added for reaction, the temperature was raised to 130° C., and the reaction was continued for 6 hours. After filtering, washing with absolute ethanol and drying, the modified graphene oxide (GO-KHTD) was obtained.

[0040] Step 2: Dehydration into charcoal cata...

Embodiment 2

[0047] Step 1: Preparation of Modified Graphene Oxide (GO-KHTD)

[0048] Add 50g graphene oxide (GO), 50ml deionized water and 800ml ethanol successively in the container equipped with stirring device, condensing reflux and nitrogen protection, after ultrasonic 30min, add 225g aminopropyltriethoxysilane, heat up to After reacting for 8 hours at 60°C, filter and wash with acetone to obtain aminopropyltriethoxysilane-modified graphene oxide (GO-APTMS). Then add 100g of GO-APTMS into a container equipped with a stirring device, condensing reflux and nitrogen protection, ultrasonically disperse in 600ml of dioxane, add 305g of triglycidyl isocyanurate, heat up to 85 ° C for 13 hours, Add 218g of DOPO to react, raise the temperature to 130°C, and react for 7h. After filtering, washing with absolute ethanol and drying, the modified graphene oxide (GO-KHTD) was obtained.

[0049] Step 2: Dehydration into charcoal catalyst is 540g ammonium polyphosphate and 270g melamine phosphate, ...

Embodiment 3

[0055] Step 1: Preparation of Modified Graphene Oxide (GO-KHTD)

[0056] Add 50g graphene oxide (GO), 50ml deionized water and 800ml ethanol successively in the container equipped with stirring device, condensing reflux and nitrogen protection, after ultrasonic 30min, add 230g aminopropyltriethoxysilane, heat up to After reacting for 8 hours at 60°C, filter and wash with acetone to obtain aminopropyltriethoxysilane-modified graphene oxide (GO-APTMS). Then add 100g GO-APTMS into a container equipped with a stirring device, condensing reflux and nitrogen protection, ultrasonically disperse in 600ml N,N-dimethylformamide, add 320g triglycidyl isocyanurate, and heat up to 80°C After 15 hours of reaction, 220 g of DOPO was added for reaction, the temperature was raised to 130° C., and the reaction was carried out for 8 hours. After filtration, it was washed with N,N-dimethylformamide and dried to obtain modified graphene oxide (GO-KHTD).

[0057] Step 2: Dehydration into charcoal...

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Abstract

Provided are a water-based intumescent fire-resistant coating based on modified graphene oxide, and a method for fabrication thereof; said fire-resistant coating comprises water, a film-forming substance, a dehydration and carbon-forming catalyst, a blowing agent, a carbon-forming agent, a pigment and filler and flame retardant, expandable graphite, modified graphene oxide, a promoter, a water-based curing agent, and water. The modified graphene oxide is prepared and obtained by a reaction of graphene oxide, aminopropyl triethoxysilane, and triglycidyl isocyanurate with 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO). The fire-resistant coating is fabricated and obtained by uniformly mixing the components.

Description

technical field [0001] The invention belongs to the field of flame-retardant coatings, and in particular relates to a modified graphene oxide-based water-based expansive fire-resistant coating and a preparation method thereof. Background technique [0002] With the continuous development of economy, society and science and technology, people pay more attention to safety and environmental protection issues. According to the requirements of the national standard "Code for Fire Protection Design of Buildings" GB 50016-2014, fire protection must be carried out for steel structure buildings. [0003] Intumescent fire retardant coatings can be classified into solvent-based fire retardant coatings and water-based fire retardant coatings according to the dispersion medium. Obviously, water-based fire-resistant coatings are much more environmentally friendly than solvent-based fire-resistant coatings. The volatile organic compounds (VOC) of water-based fire-resistant coatings are lo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D133/04C09D5/18
CPCC08L2201/02C08L2205/03C09D5/185C09D7/61C09D7/63C09D7/70
Inventor 罗伟昂戴李宗邵志恒陈国荣王世成袁丛辉许一婷曾碧榕刘新瑜
Owner XINHE NEW MATERIALS CO LTD
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