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Activated modified water repellent agent and preparation method thereof

A hydrophobic agent and modification technology, which is applied in the field of activated modified hydrophobic agent and its preparation, can solve the problems of depletion, environmental pollution, non-renewable petrochemical resources, etc., and achieve improved impermeability, excellent adsorption performance, and inhibition of alkali aggregates The effect of the reaction

Active Publication Date: 2012-08-15
俞锡贤
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, petrochemical resources are non-renewable, increasingly depleted, and have caused serious environmental pollution

Method used

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  • Activated modified water repellent agent and preparation method thereof
  • Activated modified water repellent agent and preparation method thereof
  • Activated modified water repellent agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1, an activated modified hydrophobic agent, is made up of the following components: 50 parts of activated clinoptilolite slag powder, 10 parts of active silicon powder (white carbon black), 8 parts of silica fume, sodium-based montmorillonite powder (inorganic gel) 12 parts, sodium metaaluminate 10 parts, sodium stearate (C 17 h 35 cooNa) 8 parts, naphthenic acid soap 2 parts, polyhydroxyethylsiloxane (ΓK>K-94) emulsion (solid content 55%) 5 parts; the above parts are all parts by weight.

[0038] The preparation method of the activated modified hydrophobic agent, the following steps are carried out successively:

[0039] 1) Put activated clinoptilolite mineral powder, active silica powder, silica fume, ultrafine sodium montmorillonite powder and sodium metaaluminate into a gravity-free mixer (speed 2000 rpm) and mix for 10 to 20 minutes until uniform; Get the mixed powder and discharge it for later use;

[0040] 2) Put the mixed powder into the reaction k...

Embodiment 2

[0042] Embodiment 2, an activated modified hydrophobic agent, is made up of the following components: 45 parts of activated clinoptilolite slag powder, 10 parts of active silicon powder (white carbon black), 5 parts of silica fume, sodium montmorillonite powder (inorganic gel) 10 parts, sodium metaaluminate 5 parts, sodium stearate (C 17 h 35 cooNa) 10 parts, naphthenic acid soap 5 parts, polyhydroxyethylsiloxane (ΓK>K-94) emulsion (solid content 60%) 5 parts; the above parts are all parts by weight.

[0043]The preparation method of the activated modified hydrophobic agent is the same as that of Example 1 except that the first adsorption modification process of step 2) is changed from 160° C. for 25 minutes to 180° C. for 20 minutes.

Embodiment 3

[0044] Embodiment 3, an activated modified hydrophobic agent, is made up of the following components: 50 parts of activated clinoptilolite slag powder, 5 parts of active silicon powder (white carbon black), 10 parts of silica fume, sodium-based montmorillonite powder (inorganic gel) 15 parts, sodium metaaluminate 10 parts, sodium stearate (C 17 h 35 cooNa) 5 parts, naphthenic acid soap 4 parts, polyhydroxyethylsiloxane emulsion (solid content 50%) 5 parts; the above parts are parts by weight.

[0045] The preparation method of the activated modified hydrophobic agent is the same as that of Example 1 except that the adsorption modification process of step 2) is changed from 160° C. for 25 minutes to 120° C. for 30 minutes.

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Abstract

The invention discloses an activated modified water repellent agent. The activated modified water repellent agent consists of the following components in parts by weight: 45-50 parts of activated clinoptilolite mineral powder, 5-10 parts of activated silica powder, 5-10 parts of silica fume, 10-15 parts of sodium base montmorillonite powder, 5-10 parts of sodium metaaluminate, 5-10 parts of sodium stearate, 2-5 parts of naphthenic soap and 5-10 parts of polyhydroxyethyl siloxane emulsion with 50-60 percents of solid content. The invention also discloses a preparation method of the activated modified water repellent agent. The activated modified water repellent agent is a hydrophobe and hydrophobic additive material used for dry-mixed mortar and premixed concrete. The activated modified water repellent agent has the characteristics of excellent performance and reasonable cost, and is ecological, environmentally friendly and convenient for use.

Description

technical field [0001] The invention relates to an activated modified hydrophobic agent for mortar and concrete and a preparation method thereof. Background technique [0002] There are many waterproof, water-repellent, hydrophobic liquid and powder materials used for construction mortar and concrete mixing on site, and their quality and performance are uneven. Since the 1950s, petroleum-based surfactants have been widely used in the chemical building materials industry as waterproof, hydrophobic, and hydrophobic substrates. However, petrochemical resources are non-renewable, increasingly depleted, and have caused serious environmental pollution. Under the pressure of resources and environment, human beings are looking for new renewable and recyclable resources, so as to achieve the goal of sustainable development. Biological (plant, animal or microorganism) organic polymer high-subsurface active materials and non-metallic nano-mineral inorganic polymer high-molecular mate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/42
CPCC04B2103/302C04B40/0039Y02W30/91C04B14/04C04B14/047C04B14/104C04B18/146C04B22/0093C04B24/08C04B24/42
Inventor 俞锡贤
Owner 俞锡贤