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Nano-composite water retaining agent and preparation method thereof

A nano-composite, water-retaining agent technology, applied in the preparation of the nano-composite water-retaining agent, the field of nano-composite water-retaining agents, can solve problems such as no guidance plan, achieve good cement adsorption, improve cohesion, and small viscosity changes Effect

Active Publication Date: 2018-12-07
SHIJIAZHUANG CHANGAN YUCAI BUILDING MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above technologies have not given specific guidance on how to make the rice composite water-retaining agent have good adsorption to cement and can significantly improve the cohesion, anti-segregation, and anti-bleeding properties of cement-based grouting materials.

Method used

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  • Nano-composite water retaining agent and preparation method thereof

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Embodiment 1

[0016] Embodiment 1: The nanocomposite water-retaining agent of the present invention is made of the following components and raw materials in parts by weight: nanomaterials, namely 1 part of nano-silica, 14.2 parts of acrylamide, 2-acrylamide-2 - 6.2 parts of methylpropanesulfonic acid, 3 parts of methacrylate, 0.05 parts of ammonium persulfate as the initiator, 4.3 parts of sodium hydroxide, and 527 parts of deionized water. The parts by weight may be in grams.

[0017] The preparation method of the nanocomposite water-retaining agent comprises the following process steps: ①Weigh the nanomaterial according to the above parts by weight, dissolve it in 35 parts (can be about 35ml) of deionized water, and disperse it ultrasonically for 1 hour to obtain the nanomaterial The dispersion liquid is the nano-silica dispersion liquid; ② Add the obtained nano-material dispersion liquid, acrylamide, 2-acrylamide-2-methylpropanesulfonic acid, methacrylate, and 32 parts by weight of deion...

Embodiment 2

[0018] Embodiment 2: The nanocomposite water-retaining agent of the present invention is made of the following components and raw materials in parts by weight: 2 parts of nanometer silicon dioxide, 14.2 parts of acrylamide, 2-acrylamide-2 - 6.2 parts of methylpropanesulfonic acid, 3 parts of methacrylate, 0.05 parts of ammonium persulfate as the initiator, 4.3 parts of sodium hydroxide, and 527 parts of deionized water.

[0019] The preparation method of the nano-composite water-retaining agent comprises the following process steps: ① Weigh the nano-materials according to the above-mentioned parts by weight, dissolve them in 35 parts of deionized water, and disperse them ultrasonically for 1 hour to obtain the nano-material dispersion liquid, that is, nano-dioxide Silicon dispersion; 2. The obtained nanomaterial dispersion, acrylamide, 2-acrylamide-2-methylpropanesulfonic acid, methacrylate, and 32 parts by weight of deionized water are added to a reaction kettle (can be a 500m...

Embodiment 3

[0020] Embodiment 3: The nanocomposite water-retaining agent of the present invention is made of the following components and raw materials in parts by weight: nanomaterials, namely 3 parts of nano-alumina, 14.2 parts of acrylamide, 2-acrylamide-2- 6.2 parts of methylpropanesulfonic acid, 3 parts of methacrylate, 0.05 parts of azobisisobutylimidazoline hydrochloride as an initiator, 4.3 parts of sodium hydroxide, and 527 parts of deionized water.

[0021] The preparation method of the nano-composite water-retaining agent comprises the following process steps: ① Weigh the nano-material according to the above-mentioned parts by weight, dissolve it in 35 parts of deionized water, and disperse it ultrasonically for 1 hour to obtain the nano-material dispersion liquid, that is, nano-alumina Dispersion liquid; ② the obtained nanomaterial dispersion liquid, acrylamide, 2-acrylamide-2-methylpropanesulfonic acid, methacrylate, and 32 parts by weight of deionized water are added to a rea...

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Abstract

The invention provides a nano-composite water retaining agent and a preparation method thereof. The nano-composite water retaining agent is prepared from the following components and raw materials inparts by weight: 1-3 parts of nanometer materials, 14.2 parts of acrylamide, 6.2 parts of 2-acrylamide 2-methyl-propionic acid, 3 parts of methacrylate, 0.05 parts of initiator, 4.3 parts of sodium hydroxide, and 527-530 parts of deionized water. The preparation method comprises the following steps: weighing a nanometer material, dissolving into the deionized water, and ultrasonically dispersing,to obtain a nanometer material dispersion liquid; adding nanometer material dispersion liquid, acrylamide, 2-acrylamide 2-methyl-propionic acid, methacrylate, initiator, sodium hydroxide and deionizedwater into a reaction kettle, stirring and heating; adding the initiator into the heated solution, keeping at constant temperature, reacting under stirring, and then adding sodium hydroxide and deionized water, to obtain sticky liquid, namely the nano-composite water retaining agent. The nano-composite water retaining agent is good in cement adsorbability, can remarkably improve the adhesive aggregation, segregation resistance and bleeding resistance performances of cement-based grouting materials, and is simple in preparation technology.

Description

technical field [0001] The invention relates to a water-retaining agent, in particular to a nanocomposite water-retaining agent. The invention also relates to a preparation method of the nanocomposite water retaining agent. Background technique [0002] Cement is made into various forms of concrete, reinforced concrete, prestressed concrete and structures, and it shows its superiority in application fields such as industrial and civil buildings, highways, railways, water conservancy, electric power, seaports and national defense projects. But cement also has its shortcomings that are difficult to overcome, such as: poor cohesion, poor workability when mixed with other materials, and easy segregation. Therefore, the cement-based grouting material is prone to stratification and segregation caused by the cement slurry and water floating up and the aggregate sinking after being stirred, which affects the uniformity of the quality of the grouting material and the compactness of ...

Claims

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Application Information

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IPC IPC(8): C04B24/16C08F220/56C08F220/58C08F220/10C04B103/46
CPCC04B40/0046C04B2103/465C08F220/56C04B24/163C04B14/06C04B22/062C04B14/303C08F220/585C08F220/10
Inventor 宋欣倪涛陶俊刘昭洋姚晓鹏王玉乾李茜茜刘翠芬康静
Owner SHIJIAZHUANG CHANGAN YUCAI BUILDING MATERIALS