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Building glue containing graphene oxide and kaolin and preparation method of building glue

A technology of construction glue and kaolin, applied in the field of construction glue, can solve the problems of unreasonable formula, unsuitable for green and healthy life, poor water retention, etc.

Pending Publication Date: 2021-07-23
AOXIN ADHESIVE SCI & TECH HUBEI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing construction glues have unreasonable formulas, and most of them have unsatisfactory bonding strength, easy to drop powder, and poor water retention; some construction glues also contain harmful substances such as formaldehyde, which do not meet the needs of people's pursuit of a green and healthy life

Method used

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  • Building glue containing graphene oxide and kaolin and preparation method of building glue
  • Building glue containing graphene oxide and kaolin and preparation method of building glue

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1) Firstly, the selected kaolin slurry with a solid content of 12% after sand removal is centrifugally classified by a hydrocyclone and a decanter classifier, so that the content of the kaolin slurry particles below 2 microns reaches more than 85%; The flake dehydrator concentrates the kaolin pulp to a solid content of 25%; press-filters the concentrated pulp to a filter cake with a solid content of 65%. Then, the obtained kaolin filter cake is flash-evaporated and dried under a slight negative pressure condition of -100pa to obtain kaolin dry powder with a water content below 1.5%. The dry kaolin powder obtained in step 2) was then calcined with rice husk particles as a combustion medium at a calcining temperature of 850° C. and a calcining time of 2 hours to obtain thermally activated kaolin. Finally, rapeseed powder is added to the heat-activated kaolin obtained, and depolymerized to eliminate sintered agglomerated agglomerates generated during high-temperature calci...

Embodiment 2

[0032] 1) Firstly, the selected kaolin slurry with a solid content of 12% after sand removal is centrifugally classified by a hydrocyclone and a decanter classifier, so that the content of the kaolin slurry particles below 2 microns reaches more than 85%; The flake dehydrator concentrates the kaolin pulp to a solid content of 25%; press-filters the concentrated pulp to a filter cake with a solid content of 65%. Then, the obtained kaolin filter cake is flash-evaporated and dried under a slight negative pressure condition of -100pa to obtain kaolin dry powder with a water content below 1.5%. The dry kaolin powder obtained in step 2) was then calcined with rice husk particles as a combustion medium at a calcining temperature of 850° C. and a calcining time of 2 hours to obtain thermally activated kaolin. Finally, rapeseed powder is added to the heat-activated kaolin obtained, and depolymerized to eliminate sintered agglomerated agglomerates generated during high-temperature calci...

Embodiment 3

[0040]1) Firstly, the selected kaolin slurry with a solid content of 12% after sand removal is centrifugally classified by a hydrocyclone and a decanter classifier, so that the content of the kaolin slurry particles below 2 microns reaches more than 85%; The flake dehydrator concentrates the kaolin pulp to a solid content of 25%; press-filters the concentrated pulp to a filter cake with a solid content of 65%. Then, the obtained kaolin filter cake is flash-evaporated and dried under a slight negative pressure condition of -100pa to obtain kaolin dry powder with a water content below 1.5%. The dry kaolin powder obtained in step 2) was then calcined with rice husk particles as a combustion medium at a calcining temperature of 850° C. and a calcining time of 2 hours to obtain thermally activated kaolin. Finally, rapeseed powder is added to the heat-activated kaolin obtained, and depolymerized to eliminate sintered agglomerated agglomerates generated during high-temperature calcin...

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Abstract

The invention belongs to the technical field of building glue, and particularly relates to building glue containing graphene oxide and kaolin and a preparation method of the building glue. The building glue containing graphene oxide and kaolin is prepared from the following components in parts by weight: 12 to 25 parts of sesbania gum, 5 to 8 parts of sodium bentonite, 5 to 8 parts of graphene oxide, 8 to 12 parts of kaolin, 8 to 12 parts of sodium tripolyphosphate, 15 to 25 parts of triethanolamine, 8 to 12 parts of talcum powder, 5 to 8 parts of hydroxyethyl cellulose, 5 to 10 parts of sodium polyacrylate aqueous solution, 15 to 20 parts of polyethylene, 5 to 8 parts of polyacrylamide and 220 to 250 parts of water. The building glue containing graphene oxide and kaolin provided by the invention is environment-friendly, non-toxic, high in bonding strength and excellent in water-retaining property.

Description

technical field [0001] The invention belongs to the technical field of construction glue, and in particular relates to a construction glue containing graphene oxide and kaolin and a preparation method thereof. Background technique [0002] In the field of construction, a large amount of construction glue is used. Concrete projects, brick walls, indoor and outdoor waterproof projects, etc. Glue is used, and after these projects have been used for a period of time, with the possibility of water leakage, construction glue needs to be used regularly to repair or increase waterproof strength. Although the construction glue of the prior art is simple in production process and cheap in price, the effect is often unsatisfactory and there are hidden dangers, especially some important projects dare not use it. [0003] There are many kinds of construction glue, as many as hundreds of kinds, with different formulas and different preparation methods. When using them, you can choose to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/34
CPCC04B28/344C04B2111/00637C04B24/38C04B24/122C04B24/2641C04B24/2611C04B24/2652C04B24/383C04B14/042C04B14/104C04B14/106C04B14/024C04B22/06C04B2103/0068C04B2103/605C04B2103/30
Inventor 罗晖胡劲秋
Owner AOXIN ADHESIVE SCI & TECH HUBEI