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Micro-nano bubble water, preparation method thereof and mortar composition

A technology of micro-nano bubbles and medium-micro-nano, which is applied in the field of building materials, can solve the problems of poor water stability of micro-nano bubbles, and achieve the effects of improving retention time, good stability, and improving stability

Active Publication Date: 2022-05-27
中建西部建设北方有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the applicant found that the stability of the micro-nano bubble water prepared by the above method is poor, and the stability of the micro-nano bubble water, that is, the existence time of the micro-nano bubble determines the action time and influence range of the micro-nano bubble

Method used

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  • Micro-nano bubble water, preparation method thereof and mortar composition

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Comparison scheme
Effect test

Embodiment 1

[0042] A preparation method of micro-nano bubble water, comprising the following steps:

[0043] The preparation of micro-nano bubble water is realized by the micro-nano bubble aerator. The raw material water is tap water, the pH value of the tap water is 7.09, the air is used as the aeration source, the air intake volume of the aeration gas is adjusted to 8L / min, and the circulating aeration time is for 5min; stand for 1h to obtain micro-nano bubbled water.

[0044] At 25°C, dynamic light scattering was used to measure the particle size of the micro-nano bubbles with a scattering angle of 90°. The measured D10 of the micro-nano bubbles in the water was 158 nm (that is, the proportion of bubbles smaller than 158 nm in size accounted for 10%) , D50 is 354nm (that is, bubbles with a particle size smaller than 354nm account for 50%), and D90 is 768nm (that is, bubbles with a particle size smaller than 768nm account for 90%).

[0045] The surface tension of the micro-nano bubble wa...

Embodiment 2

[0047] A preparation method of micro-nano bubble water, comprising the following steps:

[0048] The preparation of micro-nano bubble water is realized by a micro-nano bubble aerator. The raw material water is tap water, the pH value of the tap water is 7.09, and then aerated, using air as the aeration source, and adjusting the aeration gas intake to 10L / min, Circulating aeration time was 8min; left standing for 1.5h to obtain micro-nano bubble water.

[0049] In the micro-nano bubble water, the D10 of the micro-nano bubble is 162 nm, the D50 is 258 nm, and the D90 is 713 nm.

[0050] The surface tension of the micro-nano bubble water is 67.77 mN / m, and the bubble concentration in the micro-nano bubble water is 6.7×10 8 pcs / mL.

Embodiment 3

[0052] A preparation method of micro-nano bubble water, comprising the following steps:

[0053] The preparation of micro-nano bubble water is realized by a micro-nano bubble aerator. Tap water is selected as the raw material, and the pH value of the tap water is 7.09. Air is used as the aeration source, and the intake volume of the aeration gas is adjusted to 15L / min. for 15min; stand for 2h to obtain micro-nano bubbled water.

[0054] Measured in the water with micro-nano bubbles, the D10 of the micro-nano bubbles is 196 nm, the D50 is 387 nm, and the D90 is 795 nm.

[0055] The surface tension of the micro-nano bubble water is 71.3 mN / m, and the bubble concentration in the micro-nano bubble water is 4.8×10 8 pcs / mL.

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Abstract

The invention relates to the technical field of building materials, and particularly discloses micro-nano bubble water, a preparation method of the micro-nano bubble water and a mortar composition.The particle size of micro-nano bubbles in the micro-nano bubble water ranges from 100 nm to 1000 nm, and D10 of the micro-nano bubbles in the micro-nano bubble water ranges from 150 nm to 200 nm, D50 of the micro-nano bubbles in the micro-nano bubble water ranges from 250 nm to 400 nm, and D90 of the micro-nano bubbles in the micro-nano bubble water ranges from 700 nm to 800 nm; the preparation method of the micro-nano bubble water comprises the steps that when aeration gas is introduced into water for circulation, the amount of the aeration gas is 8-15 L / min, and the aeration time is 5-15 min. The invention further discloses a mortar composition which comprises the micro-nano bubble water, and the mortar composition has the advantages that the retention time of micro-nano bubbles is prolonged, and then the stability of the micro-nano bubble water is improved.

Description

technical field [0001] The present application relates to the technical field of building materials, and more particularly, to a micro-nano bubbled water, a preparation method thereof, and a mortar composition. Background technique [0002] Nano-powder materials can fill the pores of cement and improve the compressive strength and durability of concrete. However, such nano-reinforced materials are expensive, less used and difficult to mix uniformly, so they often fail to achieve the expected goals, thus limiting their use in concrete. application in practical engineering. [0003] Micro-nano bubbles are tiny bubbles with diameters between fifty microns and tens of nanometers generated when bubbles occur. Compared with macro-bubbles, micro-nano bubbles have different characteristics, such as large specific surface area, long residence time in water, and mass transfer. High efficiency. Because of the special physicochemical properties of micro-nano bubbles, they have importa...

Claims

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Application Information

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IPC IPC(8): C04B22/00C04B24/26
CPCC04B22/004C04B40/0039C04B24/2652C04B24/2623Y02W10/10
Inventor 胡宇博张凯峰罗作球孟刚童小根姚源王敏张林啸
Owner 中建西部建设北方有限公司