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Preparation method of water repellent for mineral fibers

A mineral fiber and water-repellent technology, applied in the field of water-repellent, can solve the problems of low popularity and popularization, poor stability, complex process, etc., and achieve the effect of simple process route, good stability, and easy access to raw materials

Inactive Publication Date: 2020-05-29
武汉思越化学技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the deficiencies of the prior art, the present invention provides a method for preparing a water-repellent agent for mineral fibers, which solves the problems of poor product stability, complicated process and high cost of the current preparation method of water-repellent agents for mineral fibers, and popularization and promotion The question of degree

Method used

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  • Preparation method of water repellent for mineral fibers
  • Preparation method of water repellent for mineral fibers
  • Preparation method of water repellent for mineral fibers

Examples

Experimental program
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Effect test

Embodiment 1

[0040] Embodiment 1: add 100 kilograms of lauric acid in the reactor, heat up to 90 degrees Celsius, after all melted, add 0.5 kilograms of sorbitan trioleate under stirring, at the same time 80 kilograms of calcium hydroxide are dropped into Add 1500 kg of deionized water to form a suspension, then inject the suspension into the reactor, and after two hours of heat preservation, add one kilogram of polyoxyethylene sorbitan monostearate, continue to stir rapidly for two hours, and then cool down To normal temperature, the average particle size of the obtained product is 20nm, the viscosity is 500cps, and the solid content ratio is 12%. The particle size test method: JL-1155 laser particle size distribution tester; viscosity: NDJ-1 type viscometer.

Embodiment 2

[0041] Embodiment 2: Add 100 kilograms of stearic acid in the reactor, heat up to 90 degrees Celsius, after all melted, add 1 kilogram of polyoxyethylene-polyoxypropylene block copolyether under stirring state, then oxidize 10 kilograms of hydrogen Magnesium was added to 400 kg of deionized water to form a suspension, and then injected into the reactor. After two hours of reaction, 0.5 kg of alkylphenol polyoxyethylene ether was further added, and the temperature was lowered to normal temperature after one hour of heat preservation reaction. Diameter 65nm, viscosity 250cps, the water-repellent agent that solid content ratio is 26%, test method is the same as embodiment 1.

Embodiment 3

[0042] Example 3: Add 100 kilograms of triacic acid to the reaction kettle, heat up to 90 degrees Celsius, after all melted, add 1 kilogram of fatty alcohol polyoxyethylene ether under stirring, add 20 kilograms of zinc hydroxide to 300 kilograms Deionized water forms a suspension, and then pours it into the reaction kettle for 3 hours to react, and further adds 1 kg of polyoxyethylene sorbitan monooleate, keeps it warm for 3 hours and then cools down to room temperature. The average particle size of the obtained product is 120nm, and the viscosity is 80cps , the proportion of solid content is 35%. Test method is the same as embodiment 1.

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Abstract

The invention belongs to the technical field of water repellents, and especially relates to a preparation method of water repellent for mineral fibers. The method comprises the steps of: heating higher fatty acid to a liquid state through a reaction kettle; adding a first emulsifier and performing reacting for 2 hours; adding an alkaline solution and performing stirring; and injecting a second emulsifier, continuously heating and stirring four mixtures until an oil-in-water type emulsion is obtained, guiding out and cooling the obtained oil-in-water type emulsion, after the oil-in-water type emulsion is cooled to 40-45 DEG C, guiding the oil-in-water type emulsion into a storage box to stand for 48-96 hours for modification, isolating air in the process, and avoiding oxidation, so that theproduct stability is improved, and water repellent bubbles in mineral fibers are eliminated. The produced water repellent has the advantages of being good in stability, small in use amount and excellent in waterproof and hydrophobic performance, and particularly has excellent hydrophobic performance in bubble mixed light mineral fibers, and meanwhile the defect that the water repellent in the mineral fibers contains bubbles is overcome.

Description

technical field [0001] The invention relates to the technical field of water-repellent agents, in particular to a method for preparing water-repellent agents for mineral fibers. Background technique [0002] Hydrophobic agent has the functions of anti-acid and alkali, anti-aging, anti-carbonization, pan-alkaline, moisture-proof, mildew-proof, etc. It is mainly used for waterproof spraying of ceramic tile exterior walls, waterproofing of ceramic tile joints such as toilets, kitchens, balconies, concrete walls, ceramic tiles, Waterproofing of stone, wood, cement surface and pavement, water repellent can be mixed with water at a ratio of 1:5 or 1:10, sprayed on the surface of the building with a sprayer, it can quickly penetrate into the building, forming a permanent waterproof invisible to the naked eye layer, to complete the lifelong waterproofing of the exterior wall; the water-repellent agent has changed the traditional method of waterproofing the exterior wall, starting fr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C25/465C03C25/42
CPCC03C25/465C03C25/42
Inventor 朱文超刘继刚
Owner 武汉思越化学技术有限公司
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