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Thin-layer cement scale chemical cleaning agent mainly composed of hydroxyacetic acid

A technology of glycolic acid and its main components, applied in the field of chemical cleaning, can solve problems such as cleaning, damage to the surface of objects, and affect people's quality of life, and achieve the effect of overcoming erosion and damage, solving difficult processing, and achieving good cleaning effects.

Inactive Publication Date: 2014-04-16
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] While the cement industry is booming, its environmental load is also increasing, except for some well-known environmental problems such as CO 2 In addition to emissions and dust pollution, there are still some problems that are easily overlooked by people. The specific manifestations are: 1) In industrial production, excess hardened cement is attached to pipes and equipment, causing equipment to stop; a large amount of cement clinker produced by cement factories Dust accumulates on the roof and will condense and solidify for a long time, increasing the safety hazard of the building
2) In life, the cement will pollute the environment after it solidifies, and the cement stains attached to daily necessities are difficult to remove, all of which affect people's quality of life
3) In scientific research, the condensation of cement in machines and instruments will affect the life of the equipment and even damage the equipment
It is very difficult to clean cement dirt, which is determined by its characteristics: 1) Cement is a hydraulic cementitious material with high strength after curing, and it cannot be cleaned by physical methods such as high-pressure water washing when it adheres to the surface of objects. If the dirt layer is forcibly removed with tools, it will damage the original surface

Method used

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  • Thin-layer cement scale chemical cleaning agent mainly composed of hydroxyacetic acid
  • Thin-layer cement scale chemical cleaning agent mainly composed of hydroxyacetic acid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Example 1, a thin-layer cement dirt chemical cleaning agent with glycolic acid as the main component, water 100, glycolic acid 15, surfactant 1.0, corrosion inhibitor 1.0, penetrant 1.0, sodium tripolyphosphate scale inhibition Formulated with Agent 0.1 and Colorant 1.0. The 10 aforementioned cement dirt samples were treated with 5 cycles of spraying and washing, and the erosion rate and shedding rate were calculated. The test results are shown in Table 1.

Embodiment 2

[0054] Embodiment 2, a thin-layer cement dirt chemical cleaning agent with glycolic acid as the main component, press water 100, glycolic acid 40, surfactant 4.0, corrosion inhibitor 10.0, penetrant 4.0, sodium hexametaphosphate scale inhibition Formulated with Agent 1.0 and Colorant 5.0. The 10 aforementioned cement dirt samples were treated with 5 cycles of spraying and washing, and the erosion rate and shedding rate were calculated. The test results are shown in Table 1.

Embodiment 3

[0055] Example 3, a thin-layer cement dirt chemical cleaning agent with glycolic acid as the main component, water 100, glycolic acid 25, surfactant 3.0, corrosion inhibitor 4.0, penetrant 3.0, sodium tripolyphosphate scale inhibition Formulated with Agent 0.4 and Colorant 2.0. The 10 aforementioned cement dirt samples were treated with 5 cycles of spraying and washing, and the erosion rate and shedding rate were calculated. The test results are shown in Table 1.

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Abstract

The invention belongs to the technical field of chemical cleaning, and particularly relates to a thin-layer cement scale chemical cleaning agent mainly composed of hydroxyacetic acid. The product is prepared from the following raw materials: hydroxyacetic acid, surfactant, corrosion inhibitor, penetrant, scale inhibitor, colorant and water. After being sprayed on the thin-layer cement scale, the product can quickly penetrate to the inside of the cement scale and initiate chemical reaction to form fluffy substances, thereby lowering the adhesive force of the cement; and after some time, clear water is used for flushing, thereby easily removing the thin-layer cement scale. The product has the characteristics of no toxicity, no harm, small corrosivity for metal equipment and other base materials, small harm to operating personnel and the like, can be widely used for cleaning the cement scale on building wall surfaces, hardened cement scale on experimental equipment, cement stains on daily supplies and the like, and has favorable economic benefits and environmental benefits.

Description

technical field [0001] The invention belongs to the technical field of chemical cleaning, in particular to a chemical cleaning agent for thin-layer cement dirt with glycolic acid as the main component. Background technique [0002] While the cement industry is booming, its environmental load is also increasing, except for some well-known environmental problems such as CO 2 In addition to emissions and dust pollution, there are still some problems that are easily overlooked by people. The specific manifestations are: 1) In industrial production, excess hardened cement is attached to pipelines and equipment, causing equipment to stop; a large amount of cement clinker produced by cement factories Dust accumulates on the roof and will condense and solidify for a long time, increasing the safety hazard of the building. 2) In life, the cement will pollute the environment after it solidifies, and the cement stains attached to daily necessities are difficult to remove, all of which...

Claims

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Application Information

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IPC IPC(8): C11D10/02C11D1/83C11D3/60C11D3/30C11D3/06C11D3/40
Inventor 孙振平董耀武
Owner TONGJI UNIV
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