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Preparation method, product and application of a superhydrophobic material

A super-hydrophobic and distilled water technology, applied in the field of polymer materials, can solve the problems of general scale inhibition effect, achieve the effects of preventing calcium sulfate scaling, low cost, and improving mechanical properties

Active Publication Date: 2020-11-17
NANCHANG HANGKONG UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent realizes the antiscaling function by adding antiscalant to the composite material. Since the antiscalant is mixed in the composite material, the antiscalant is not necessarily just distributed on the surface of the composite material. Therefore, the antiscalant effect of this patent is generally

Method used

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  • Preparation method, product and application of a superhydrophobic material
  • Preparation method, product and application of a superhydrophobic material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035](1) Weigh 10g of sodium silicate solution in a beaker, add 50ml of distilled water, and ultrasonicate for 5-15 minutes to completely dissolve the sodium silicate solution;

[0036] (2) Heat the sodium silicate solution in the beaker, keep the temperature at 35°C, add 5mol / L hydrochloric acid dropwise to the beaker for reaction, the volume of hydrochloric acid added is 0.8 times the volume of the sodium silicate solution, until white Suspension, the reaction is completed, the white suspension is suction filtered to obtain a precipitate, the precipitate is washed repeatedly with distilled water, and AgNO 3 Solution detection of Cl in wash solution - , until no AgCl precipitate is formed in the washing solution; dry the precipitate at 60°C under normal pressure to obtain hydrated silica;

[0037] (3) Add 100g of the hydrated silicon dioxide prepared above and 80mL of absolute ethanol into a 250mL three-necked flask, slowly drop 6ml of vinyltriethoxysilane into the three-ne...

Embodiment 2

[0042] (1) Weigh 10g of sodium silicate solution in a beaker, add 50ml of distilled water, and ultrasonicate for 5-15 minutes to completely dissolve the sodium silicate solution;

[0043] (2) Heat the sodium silicate solution in the beaker, keep the temperature at 37°C, add 5mol / L hydrochloric acid dropwise to the beaker for reaction, the volume of hydrochloric acid added is 0.9 times the volume of the sodium silicate solution, until white Suspension, the reaction is completed, the white suspension is suction filtered to obtain a precipitate, the precipitate is washed repeatedly with distilled water, and AgNO 3 Solution detection of Cl in wash solution - , until no AgCl precipitate is formed in the washing solution; dry the precipitate at 65°C under normal pressure to obtain hydrated silica;

[0044] (3) Add 100g of the hydrated silicon dioxide prepared above and 90mL of absolute ethanol to a 250mL three-necked flask, slowly drop 7ml of vinyltriethoxysilane into the three-nec...

Embodiment 3

[0049] (1) Weigh 10g of sodium silicate solution in a beaker, add 50ml of distilled water, and ultrasonicate for 5-15 minutes to completely dissolve the sodium silicate solution;

[0050] (2) Heat the sodium silicate solution in the beaker, keep the temperature at 40°C, add 5mol / L hydrochloric acid dropwise to the beaker for reaction, the volume of hydrochloric acid added is 1 times the volume of the sodium silicate solution, until white Suspension, the reaction is completed, the white suspension is suction filtered to obtain a precipitate, the precipitate is washed repeatedly with distilled water, and AgNO 3 Solution detection of Cl in wash solution - , until no AgCl precipitate is formed in the washing solution; dry the precipitate at 70°C under normal pressure to obtain hydrated silica;

[0051] (3) Add 100g of the hydrated silicon dioxide prepared above and 100mL of absolute ethanol into a 250mL three-necked flask, slowly drop 8ml of vinyltriethoxysilane into the three-ne...

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Abstract

The invention discloses a preparation method, product and application of a superhydrophobic material. The preparation method comprises: using sodium silicate as a raw material to prepare hydrated silicon dioxide; modifying the hydrated silicon dioxide; Hydrated silicon dioxide, EHP initiator and vinyl chloride are polymerized to produce polyvinyl chloride resin, and the polyvinyl chloride resin is molded to obtain the super-hydrophobic material. The super-hydrophobic material has super-hydrophobic, self-cleaning and anti-scaling effects, so the super-hydrophobic material is used in industrial pipelines, which can directly prevent or reduce the deposition of calcium sulfate scale on the inner wall of the pipeline from the source, and greatly reduce the calcium sulfate scaling zone coming risk.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a preparation method, product and application of a superhydrophobic material. Background technique [0002] Calcium sulfate is a kind of slightly soluble substance. Due to the influence of temperature, pressure, flow rate, etc., it is easy to precipitate and form hard calcium sulfate scale in industrial pipelines, which leads to the reduction of the flow cross-sectional area of ​​the pipeline, resulting in pressure loss, reduction of displacement and damage to the pipeline. Blockage; it will also induce local corrosion of the pipeline, resulting in frequent leakage of the pipeline, and even perforation causing destructive accidents. The mechanism of calcium sulfate scaling includes thermodynamic mechanism and kinetic mechanism. When the temperature, pressure, and flow rate of the solution change, high-salinity water will scale. The rate of scaling is related to temperature and fl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F292/00C08K9/06C08K3/36
CPCC08K3/36C08K9/06C08L27/06
Inventor 曾桂生马林娟邹建平罗旭彪秦元成魏栖梧凌波
Owner NANCHANG HANGKONG UNIVERSITY
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