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Inorganic penetration waterproof agent

A waterproofing, inorganic technology, applied in the field of building materials, can solve the problems of poor waterproof performance and poor self-repairing ability, and achieve the effect of increasing the load, good monodispersity, and improving self-compacting performance.

Inactive Publication Date: 2018-12-18
翟琳
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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 to provide an inorganic penetrating waterproofing agent in view of the poor waterproof performance and poor self-repairing ability of the current penetrating waterproofing agent, and the premature reaction with concrete during the penetrating process

Method used

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  • Inorganic penetration waterproof agent

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preparation example Construction

[0025] The preparation method of the slow-osmosis self-healing active substance is as follows:

[0026] S1. Take the nano-ferric oxide powder and add ethanol with a mass fraction of 90% according to the mass ratio of 1~4:10~15, and then add methacrylic acid-3-(trimethacrylic acid) with a mass ratio of 10-20% of the nano-ferric oxide powder. Oxysilyl) propyl ester, ultrasonically dispersed for 20~30min to obtain an ultrasonic dispersion, heated to 65~70°C, added ammonia water with 5~10% of the mass of the ultrasonic dispersion, stirred and mixed for 12~15h, attracted by a magnet, and the attractant Wash with ultrapure water and absolute ethanol, and dry to obtain a dried product;

[0027] S2. Take the dry matter and add ultrapure water according to the mass ratio of 2~5:40~70, pass through nitrogen protection, add glycidyl methacrylate 2~5 times the amount of dry matter and 30~50% of the amount of dry matter Vinylbenzene, stir and mix at 70~75°C for 20~30min to obtain a stirre...

Embodiment 1

[0038] The preparation method of the slow-osmosis self-healing active substance is as follows:

[0039] S1. Take the nano-ferric oxide powder and add ethanol with a mass fraction of 90% at a mass ratio of 1:10, and then add methacrylic acid-3-(trimethoxysilyl)acrylic acid with a mass ratio of 10% of the nano-ferric oxide powder. Esters were ultrasonically dispersed for 20 minutes to obtain an ultrasonic dispersion, heated to 65°C, added ammonia water with 5% mass of the ultrasonic dispersion, stirred and mixed for 12 hours, attracted by a magnet, washed with ultrapure water and absolute ethanol, and dried to obtain a dry thing;

[0040] S2. Take the dry matter and add ultrapure water according to the mass ratio of 2:40, pass through nitrogen protection, add glycidyl methacrylate twice the amount of dry matter and divinylbenzene with 30% of the dry matter, and stir at 70°C Mix for 20 minutes to obtain a stirred mixture, take the stirred mixture and add potassium persulfate at ...

Embodiment 2

[0051] The preparation method of the slow-osmosis self-healing active substance is as follows:

[0052] S1. Take the nano-ferric oxide powder and add ethanol with a mass fraction of 90% at a mass ratio of 3:12, and then add methacrylic acid-3-(trimethoxysilyl)acrylic acid with a mass ratio of 15% of the nano-ferric oxide powder. Ester, ultrasonically dispersed for 25 minutes to obtain an ultrasonic dispersion, heated to 68°C, added ammonia water with 8% mass of the ultrasonic dispersion, stirred and mixed for 14 hours, attracted by a magnet, washed with ultrapure water and absolute ethanol, and dried to obtain a dry thing;

[0053] S2. Take the dry matter and add ultrapure water according to the mass ratio of 3:65, pass through nitrogen protection, add glycidyl methacrylate with 4 times the amount of dry matter and divinylbenzene with 40% of the dry matter, and stir at 73°C Mix for 25 minutes to obtain a stirred mixture. Take the stirred mixture and add potassium persulfate a...

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Abstract

The invention discloses an inorganic penetration waterproof agent and belongs to the technical field of building materials. According to the inorganic penetration waterproof agent, nano ferroferric oxide is used as a raw material, and glycidyl methacrylate and divinylbenzene are added to carry out emulsion polymerization, so as to obtain a polymer magnetic microsphere; the inner part of concrete is filled with crystals, the self-compaction performance of the concrete is improved and the effect of protecting and repairing cracks on the surface of the concrete is realized; methyltriethoxysilaneand vinyltriethoxysilane are used as main raw materials and a silicon resin additive is obtained; the adhesion force can be improved and a hydrophobic network is formed and is filled into a gap, so that the binding force with a concrete matrix is improved; triethanolamine is introduced and N atoms exist in triethanolamine molecules; a covalent bond is formed through the N atoms and metal ions andcomplexing is carried out, and the density of the concrete is increased, so that the waterproof performance is improved. By adopting the inorganic penetration waterproof agent, the problems of a current penetration waterproof agent that the waterproof performance is poor and the self-repairing capability is poor, and the current penetration waterproof agent and the concrete are subjected to earlyreaction in a penetration process are solved.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to an inorganic penetrating waterproofing agent. Background technique [0002] Concrete is the most widely used building material in civil engineering today, but many concrete materials fail prematurely due to various reasons, some are caused by improper structural design, but most of them are caused by insufficient durability and corrosion of the structure. , water plays a very important role in the corrosion process, especially the concrete materials in coastal areas are eroded due to the humid moisture in the sea and air, and the chloride salts rich in sea water invade the interior of the concrete structure, cause it to fail due to corrosion. [0003] At present, there are many kinds of penetrating waterproofing agents, but according to their chemical composition, they can be divided into two categories: inorganic penetrating waterproofing agents and organ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/26C08G77/20C04B111/27
CPCC04B28/26C04B2111/27C08G77/20C04B22/06C04B18/141C04B22/142C04B22/064C04B22/00C04B24/383C04B24/42C04B2103/302C04B24/122C04B2103/304C04B24/28
Inventor 翟琳路芸庞成荣
Owner 翟琳
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