Stable iron red seal curing agent and preparation method thereof

A sealing curing agent, stable technology, applied in the direction of iron oxide/iron hydroxide, iron oxide, etc., can solve problems such as whitening, unsatisfactory curing effect of color curing agent, uneven color, etc., to improve compactness, improve Color unevenness or whitening, water resistance enhancement effect

Inactive Publication Date: 2018-06-15
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 a stable iron red sealing and curing agent and its preparation method in view of the unsatisfactory curing effect of the color curing agent and the problems of uneven color and whitening phenomenon

Method used

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  • Stable iron red seal curing agent and preparation method thereof

Examples

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Effect test

example 1

[0026] Take 0.3g of cetyltrimethylammonium bromide, add it to 60g of deionized water, stir and heat at 300r / min until boiling for 1h, then add 16g of 10% ferric chloride solution dropwise at 1mL / min, dropwise Continue stirring for 1 h after completion, then adjust the pH to 4 with 5% ammonia water by mass fraction, and then transfer to a rotary evaporator to evaporate to dryness under reduced pressure, place the evaporated product in a muffle furnace, and heat up to 5°C / min. Calcined at 500°C for 1 hour, cooled to room temperature to obtain nano-iron oxide, took 0.3g dispersant, 0.5g penetrating agent, 0.8g surfactant, added to 80g silica sol, stirred at 200r / min for 20min, obtained compatibility accelerator, Add 10g of nano-iron oxide to the compatibility promoter, stir at 200r / min for 20min, then add 10g of magnesium lithium silicate, 1.2g of surface modifier, 1g of defoamer, and stir at 300r / min for 20min to obtain stable iron red Seal curing agent.

example 2

[0028] Take 0.4g of cetyltrimethylammonium bromide, add it to 80g of deionized water, stir and heat at 350r / min until boiling for 1h, then add 21g of 10% ferric chloride solution dropwise at 1mL / min, dropwise Continue to stir for 1 hour after the completion, then adjust the pH to 4.5 with 5% ammonia water by mass fraction, and then transfer to a rotary evaporator to evaporate to dryness under reduced pressure, place the evaporated product in a muffle furnace, and heat up to Calcined at 525°C for 2h, cooled to room temperature to obtain nano-iron oxide, took 0.4g dispersant, 0.65g penetrating agent, 1.0g surfactant, added to 90g silica sol, stirred at 250r / min for 25min, obtained compatibility accelerator, and Add 12g of nano-iron oxide to the compatibility promoter, stir at 250r / min for 25min, then add 13g of magnesium lithium silicate, 1.6g of surface modifier, 2g of defoamer, and stir at 350r / min for 25min to obtain stable iron red Seal curing agent.

example 3

[0030] Take 0.5g of cetyltrimethylammonium bromide, add it to 100g of deionized water, stir and heat at 400r / min until boiling for 2h, then add 27g of 10% ferric chloride solution dropwise at 2mL / min, dropwise After completion, continue to stir for 2 hours, then use 5% ammonia water to adjust the pH to 5, and transfer to a rotary evaporator to evaporate to dryness under reduced pressure. The evaporated product is placed in a muffle furnace, and the temperature is raised to Calcined at 550°C for 2 hours, cooled to room temperature to obtain nano-iron oxide, took 0.5g dispersant, 0.8g penetrant, and 1.2g surfactant, added to 100g silica sol, stirred at 300r / min for 30min to obtain compatibility accelerator, and Add 15g of nano-iron oxide to the compatibility accelerator, stir at 300r / min for 30min, then add 15g of lithium magnesium silicate, 2.0g of surface modifier, 2g of defoamer, and stir at 400r / min for 30min to obtain stable iron red Seal curing agent.

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Abstract

The invention relates to a stable iron red seal curing agent and a preparation method thereof, and belongs to the technical field of building materials. Transparent nano colloid silicon, a surfactantand an osmotic agent are compounded as a compatibility accelerant. The surface of the nano iron oxide is wrapped with a nano silicon layer, by use of amphoteric inorganic magnesium silicate lithium salt, charged lamella thin slices can be formed in a hydration process, the end faces of lamellas are positively charged, the layer surface of the lamellas are negatively charged, due to the attractionof positive and negative charges, a ''card house'' structure is gradually formed by the lamellas in the hydration process, a colorless transparent gel solution is formed by stripping and dispersing ofmagnesium silicate lithium lamellas in water to form a protective film on the surface of dispersed nano iron oxide particles. The flexible protective film can prevent aggregation of the nano iron oxide, components components inside and outside the protective film are not diffused mutually, a small-particle and homogeneous iron red material is prepared, and phenomena of uneven local color or whitening can be improved.

Description

technical field [0001] The invention relates to a stable iron red sealing and curing agent and a preparation method thereof, belonging to the technical field of building materials. Background technique [0002] Concrete sealing and curing agent is generally also called concrete curing agent, concrete sealant or concrete penetration hardening sealer. It was invented by Americans in 1942 and has been used in the United States since 1947. Today, more than 70 years later, concrete curing agent has become the most widely used concrete curing, sealing and hardening agent in the world, and it is a good admixture to protect the concrete structure and prolong the life of the concrete. [0003] At present, there are relatively few researches and construction applications on color curing agents. Using grinding modification technology, multi-component composite technology and product surface treatment technology, a cement-based color curing agent has been obtained, which has good ion mi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G49/06C04B14/30
CPCC01G49/06C04B40/0039C04B14/308C04B2103/408C04B2103/40C04B2103/0068C04B12/04C04B2103/50
Inventor 谷友宝王文新史玉玲
Owner 翟琳
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