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Preparation method of stone protective agent for humid environment of subway station

A wet environment and protective agent technology, applied in coatings, polyester coatings, etc., can solve problems such as poor moisture-proof effect and reduced stone life

Inactive Publication Date: 2020-10-27
ANHUI LAO SHI REN STONE IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Most of the existing protective agents are for decoration, but the moisture-proof effect is poor. Stones are used in subway stations, and subway stations are mostly in humid environments. After a long time, the life of stones will be reduced.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A kind of stone protection agent preparation method that is used in the wet environment of subway station of the present embodiment, comprises the following steps:

[0026] Step 1: Preparation of the wetting agent: Add the modified wollastonite to the phosphoric acid solution, then add sodium lauryl sulfate, stir at a speed of 100r / min for 25min, and then add polymethylhydrogensiloxane , continue to stir for 15 minutes, and when the stirring is completed, add low molecular weight terminal hydroxyl silicone oil, and continue to stir for 30 minutes.

[0027] Step 2, preparation of moisture-resistant agent: send bentonite into silicone-modified polyethylene dispersion liquid for 15 minutes and disperse at a speed of 1000r / min, then add citric acid and sodium alginate, continue to stir for 10 minutes, and finally add sulfuric acid To convert dodecafluoroheptyl succinate, stir at a low speed for 45 minutes;

[0028] Step 3, weighing of raw materials: 10 parts of wetting age...

Embodiment 2

[0036] A kind of stone protection agent preparation method that is used in the wet environment of subway station of the present embodiment, comprises the following steps:

[0037] Step 1: Preparation of the wetting agent: Add the modified wollastonite to the phosphoric acid solution, then add sodium lauryl sulfate, stir at a speed of 200r / min for 35min, and then add polymethylhydrogensiloxane , continue to stir for 25 minutes, after the stirring is completed, add low molecular weight terminal hydroxyl silicone oil, and continue to stir for 30-40 minutes;

[0038] Step 2, preparation of moisture-resistant agent: send bentonite into silicone-modified polyethylene dispersion liquid for 25 minutes and disperse at a speed of 1500r / min, then add citric acid and sodium alginate, continue to stir for 20 minutes, and finally add sulfuric acid To convert dodecafluoroheptyl succinate, stir at a low speed for 55 minutes;

[0039] Step 3, weighing of raw materials: 20 parts of wetting age...

Embodiment 3

[0047] A kind of stone protection agent preparation method that is used in the wet environment of subway station of the present embodiment, comprises the following steps:

[0048] Step 1: Preparation of wetting agent: Add the modified wollastonite to the phosphoric acid solution, then add sodium lauryl sulfate, first stir at a speed of 150r / min for 30min, and then add polymethylhydrogensiloxane , continue to stir for 20 minutes, after the stirring is completed, add low molecular weight terminal hydroxyl silicone oil, and continue to stir for 35 minutes;

[0049] Step 2, preparation of moisture-resistant agent: send bentonite into silicone-modified polyethylene dispersion liquid to disperse for 20 minutes, the dispersion speed is 1250r / min, then add citric acid and sodium alginate, continue to stir for 15 minutes, and finally add sulfur To convert dodecafluoroheptyl succinate, stir at a low speed for 50 minutes;

[0050] Step 3, weighing of raw materials: 15 parts of wetting a...

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PUM

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Abstract

The invention discloses a preparation method of a stone protective agent for a humid environment of a subway station. The method comprises the following steps of: 1, preparation of an impregnating agent: adding modified wollastonite into a phosphoric acid solution, then adding lauryl sodium sulfate, and performing stirring for 25-35min at a rotating speed of 100-200r / min. Modified wollastonite isused as a main agent for preparing the impregnating agent, wollastonite itself has a needle-shaped structure, so that the impregnating agent can permeate stone under the assistance of a phosphoric acid solution, lauryl sodium sulfate and polymethylhydrosiloxane, stone gaps can be made up, the stone density is improved, the added moisture-proof agent is formed by dispersing organic silicon modifiedpolyethylene dispersion liquid, citric acid and sodium alginate, and is matched with acrylic resin and an polyester emulsion so as to be used as a protective layer of the stone, and a moisture-proofeffect is achieved.

Description

technical field [0001] The invention relates to the technical field of stone protective agents, in particular to a method for preparing stone protective agents used in humid environments of subway stations. Background technique [0002] Decorative stone is an important decoration material for modern buildings. my country is a big importer of stone blocks and a big exporter of processed stone products. It is a veritable stone processing factory. With the continuous improvement of domestic urbanization and the popularization of commercial housing, domestic demand is also rising, and the demand for decorative stone cleaning, protection, renovation, and daily maintenance is constantly increasing. The use of stone protective agent can effectively reduce the frequency of stone cleaning or refurbishment, reduce maintenance costs, and its demand is also on the rise. [0003] The definition of stone protective agent Stone protection is to use some protective agents to brush, spray,...

Claims

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Application Information

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IPC IPC(8): C09D133/04C09D167/00C09D7/62C09D7/65C04B41/61
CPCC04B41/5024C04B41/61C09D133/04C09D7/62C09D7/65C08L67/00C08K9/02C08K9/00C08K3/34C08K9/04C08K9/08C08K3/346C04B41/5016C04B41/4905C04B41/4861C04B41/483C04B41/4826C04B41/46C04B41/4539
Inventor 方志华高慧玲方槁煜方钰清
Owner ANHUI LAO SHI REN STONE IND CO LTD
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