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Surfactant composition for solidifying fly ash

A technology of surfactant and composition, applied in the field of surfactant composition and its preparation, to achieve the effects of shortening curing time, lowering curing temperature and increasing strength

Inactive Publication Date: 2013-04-17
HENAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Surfactants play an important role in the solidification of fly ash, and there is no composite component surfactant used in fly ash

Method used

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  • Surfactant composition for solidifying fly ash

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] In a 100-liter stainless steel reaction kettle with a stirrer and a thermometer, add 20 kg of triethanolamine and 5 kg of maleic anhydride, start stirring, heat up, and maintain the reaction temperature at about 120 ° C. Add 2.5 kg in batches until there is no visible solid P 2 o 5 , maintain the reaction temperature at about 120 °C, add 22.5 kg of AEP in batches until no visible solids, and react until it becomes clear, and the surfactant of the present invention is obtained. The product is recorded as A-1, and NDJ-1 rotational viscosity The viscosity measured by the meter is 36000 mpa·s.

Embodiment 2

[0020] In a 100-liter stainless steel reaction kettle with a stirrer and a thermometer, add 30 kg of triethanolamine and 7.5 kg of tetrahydrophthalic anhydride, start stirring, heat up, and maintain the reaction temperature at about 120 ° C. After no visible solids, add 2 kgP 2 o 5 , maintain the reaction temperature at about 120°C, add 10.5 kg of AEP in batches until no visible solids are present, and react until it becomes clear to obtain the surfactant of the present invention. The product is marked as A-2, and NDJ-1 rotational viscosity The viscosity measured by the meter is 40000 mpa·s.

Embodiment 3

[0022] Add 25 kg of triethanolamine and 10 kg of methyltetrahydrophthalic anhydride to a 100-liter stainless steel reaction kettle with a stirrer and a thermometer, start stirring, heat up to maintain the reaction temperature at about 100°C, and add in batches after the reaction is clear 3.5 kg P 2 o 5 , maintain the reaction temperature at about 100°C, add 11.5 kg of AEP in batches until no visible solids are present, and react until it becomes clear to obtain the surfactant of the present invention. The product is marked as A-3, and NDJ-1 rotational viscosity The viscosity measured by the meter is 50000 mpa·s.

[0023] When in use, the curing agent and fly ash are mixed evenly at a weight ratio of 7.5 / 100, and then the surfactant product of the present invention with 2% by weight of fly ash is dissolved in water and added to the above mixture and stirred evenly to carry out on-site filling.

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Abstract

The invention discloses a novel surfactant composition for solidifying fly ash, belonging to the technical field of road construction materials. The surfactant composition comprises 20-60 wt% of triethanolamine, 5-30 wt% of anhydride, 1-20 wt% of P2O5, and 20-60 wt% of AEP [isooctanol polyethenoxy (6-8) ether]. The composition can improve the intensity and frost resistance of solidified fly ash, reduce the maintenance temperature, shorten the solidification time, and the like.

Description

technical field [0001] The invention relates to a surfactant composition for solidifying fly ash and a preparation method thereof, belonging to the technical field of road building materials. Background technique [0002] Surfactant refers to a substance that can significantly reduce the surface tension of a solvent (generally water) and has a certain structure, hydrophilic and lipophilic properties, and special adsorption properties. These substances are easy to adsorb, and also have different [0003] A series of properties such as penetration, lubrication, emulsification, dispersion, solubilization, foaming, defoaming, washing, sterilization, softness, antistatic, anticorrosion, and rust prevention. Surfactants have a very wide range of uses. At present, developed countries attach great importance to the research, development, production and application of surfactants. Taking Japan as an example, the surfactant industry has developed rapidly in the past 20 years, and i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B18/08
CPCY02W30/91
Inventor 袁玉卿李雪婵陈大帅贺子奇陈培超刘凤利万海涛刘松利詹万里王留洋
Owner HENAN UNIVERSITY