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Graphene polymer waterproofing coating mother material and preparation method thereof

A waterproof coating, graphene technology, applied in cement coatings, anti-corrosion coatings, polyurea/polyurethane coatings, etc., can solve the problems of graphene dispersion stability, compression of preparation costs, etc., achieve easy control of reaction conditions, and delay the corrosion rate. , the effect of easy operation

Active Publication Date: 2017-07-28
HEBEI CHENYANG INDAL & TRADE GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are two unavoidable problems in the application of graphene in waterproof coatings. One is that the entire preparation cost needs to be further reduced, and the other is the dispersion stability of graphene.

Method used

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  • Graphene polymer waterproofing coating mother material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Preparation of graphene / microporous materials

[0028] Put 20 parts by weight of graphene in deionized water for ultrasonic dispersion for 1 hour to obtain a uniformly dispersed graphene aqueous solution, pour 15 parts by weight of microporous material diatomaceous earth into the graphene aqueous solution, and mechanically stir at 60 ° C To slurry, spray drying to obtain graphene dispersed in the micropores of microporous materials to form graphene / microporous materials;

[0029] (2) Micro-crosslinking

[0030] Add the graphene / microporous material prepared by step (1) in the reaction kettle equipped with a thermometer, agitator and condenser, then add 15 parts by weight of polyacrylate emulsion with a solid content of 35%, and add it during stirring Initiators potassium persulfate and NaHCO 3 , react at room temperature for 1h, the polyacrylate emulsion is micro-crosslinked to form a film under the action of initiation, and the graphene / microporous material is co...

Embodiment 2

[0039] (1) Preparation of graphene / microporous materials

[0040] Place 30 parts by weight of graphene in deionized water and ultrasonically disperse to obtain a uniformly dispersed graphene aqueous solution, calcinate the zeolite powder at a high temperature, crush it to a powder below 20 microns, and pour 20 parts by weight of the microporous material zeolite powder into the In the graphene aqueous solution, stir mechanically at 100°C to a slurry state, spray dry to obtain graphene dispersed in the micropores of the microporous material to form graphene / microporous material;

[0041] (2) Micro-crosslinking

[0042] Add the graphene / microporous material prepared in step (1) into the reaction kettle equipped with a thermometer, a stirrer and a condenser, then add 30 parts by weight of polyacrylate emulsion with a solid content of 30%, and add the initiator during stirring. Ammonium persulfate and NaHCO 3 , react at room temperature for 2 hours, the polyacrylate emulsion is m...

Embodiment 3

[0051] (1) Preparation of graphene / microporous materials

[0052] After 25 parts by weight of graphene was placed in deionized water for ultrasonic dispersion for 3 hours, a uniformly dispersed graphene aqueous solution was obtained, and 15 parts by weight of microporous material silica airgel was poured into the graphene aqueous solution, at 60 ° C Under mechanical stirring to a slurry state, spray drying to obtain graphene dispersed in the micropores of the microporous material to form graphene / microporous material;

[0053] (2) Micro-crosslinking

[0054] Add the graphene / microporous material prepared by step (1) into the reaction kettle equipped with a thermometer, a stirrer and a condenser, then add 20 parts by weight of polyacrylate emulsion with a solid content of 30%, and add it during stirring Initiators potassium persulfate and NaHCO 3 , react at room temperature for 1h, the polyacrylate emulsion is micro-crosslinked to form a film under the action of initiation, a...

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Abstract

The invention discloses a graphene polymer waterproofing coating mother material and a preparation method thereof. The preparation method comprises dispersing graphene in micropores of a microporous material, micro-crosslinking the graphene and a polyacrylate emulsion under assist action of an initiator so that a graphene / microporous material is coated, dispersing the coated graphene / microporous material in a micelle form to obtain the graphene polymer waterproofing coating mother material. In use, the graphene polymer waterproofing coating mother material is directly added into the polymer waterproofing coating. The mother material has good dispersibility. Graphene winds the polymer so that a film-forming molecular chain is improved, the waterproof film is enhanced and toughened, good corrosion and aging resistance is obtained and a service life of the polymer waterproof coating is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a graphene polymer waterproof coating masterbatch and a preparation method. Background technique [0002] In recent years, green building materials have been continuously developed to meet the needs of engineering construction in the new era. Polymer waterproof coatings emerged as a new type of waterproof material. Polymer waterproof coating is a flexible waterproof material, two-component type, including liquid material and powder material, which is made by mixing a certain proportion of liquid material and powder material evenly, hydration reaction of inorganic powder material and cross-linking and curing of water-based emulsion. . It is suitable for roofing, kitchen and bathroom, basement, pool and other building waterproofing projects. It adopts the composite technology of cement-based materials and polymer materials, which makes up for the lack of flexibility...

Claims

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Application Information

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IPC IPC(8): C09D5/08C09D7/12C09D175/04C09D133/04C09D1/08
CPCC08K3/04C08K9/10C08L2205/025C08L2205/035C09D1/08C09D5/08C09D133/04C09D175/04C08L33/04C08K13/06C08L75/04
Inventor 陈庆王镭迪曾军堂
Owner HEBEI CHENYANG INDAL & TRADE GROUP CO LTD
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