Corrosion inhibition material and application thereof

A corrosion-inhibiting material and coating technology, applied in the field of nano-composite materials, can solve the problems of poor sensitivity of halloysite nanotubes and unsatisfactory anti-corrosion performance of halloysite nanotube coatings, and achieve significant pH environmental change sensitivity, Strong environmental pH sensitivity and good anti-corrosion effect

Inactive Publication Date: 2021-11-19
SOUTH CHINA UNIV OF TECH
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Problems solved by technology

[0004] In order to overcome the poor pH sensitivity of halloysite nanotubes and the unsatisfactory anti-corrosion performance of halloysite nanotube coatings in the prior art, one of the purposes of the present invention is to provide a corrosion-inhibiting material. The second purpose of the invention To provide the preparation method of this corrosion-in

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  • Corrosion inhibition material and application thereof
  • Corrosion inhibition material and application thereof
  • Corrosion inhibition material and application thereof

Examples

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Embodiment 1

[0049] A preparation method of halloysite nanotube coating comprises the following steps:

[0050] S1. Preparation of sodium lignosulfonate / halloysite nanotubes (SLS / HNTs)

[0051] Mix sodium lignosulfonate and halloysite nanotubes evenly in proportion, load sodium lignosulfonate into halloysite nanotubes by vacuum negative pressure, perform solid-liquid separation after centrifugation, wash and dry, and then grind to powder. Sodium lignosulfonate / halloysite nanotube powder was prepared.

[0052] Specifically, when sodium lignosulfonate / halloysite nanotubes are loaded under vacuum negative pressure, the mixed solution of sodium lignosulfonate and halloysite nanotubes is placed in a vacuum drying oven to evacuate the interior to vacuum. The density reaches 0.1MPa, load sodium lignosulfonate into halloysite nanotubes by negative pressure, make the vacuum box in a vacuum state for 2 hours, then open the air holes, let the outside air enter the vacuum box, repeat the above two st...

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Abstract

The invention discloses a corrosion inhibition material and application thereof. The invention relates to a corrosion inhibition material. The corrosion inhibition material comprises halloysite nanotubes, wherein lignosulfonate is loaded in the halloysite nanotubes; and the surface of the halloysite nanotube contains a polydiene dimethyl ammonium chloride and sodium polystyrenesulfonate coating layer. The halloysite nanotube coating comprises the corrosion inhibition material and a resin coating. The prepared halloysite nanotube coating has remarkable sensitivity to pH environment change, electrochemical impedance spectroscopy and water contact angle tests show that the prepared halloysite nanotube coating has excellent corrosion resistance, and water contact angle test results show that the prepared halloysite nanotube coating has good hydrophobicity; and the corrosion inhibition material is reasonable in step design, the preparation process is controllable, and industrial mass production can be realized.

Description

technical field [0001] The invention belongs to the technical field of nanocomposite materials, and in particular relates to a corrosion-inhibiting material and its application. Background technique [0002] Corrosion is one of the main factors that cause a large number of accidents and economic losses, and the use of anti-corrosion coatings is the most common and most economical and effective anti-corrosion measure. As a new type of natural nanocomposite material, halloysite nanotubes have the characteristics of low price, stable chemical properties and good biocompatibility, and have a unique hollow tubular structure, so they are widely used in medicine, cosmetics, agriculture and catalysis. and other fields have been widely used. [0003] At present, many scholars use the lumen of halloysite nanotubes to load certain materials, such as corrosion inhibitors, enzymes, drugs, etc. The unique hollow cavity structure of halloysite nanotubes makes it a natural nano-container....

Claims

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Application Information

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IPC IPC(8): C09D5/08C09D163/00C09D133/00
CPCC09D5/08C09D163/00C09D133/00C08L97/005C08K9/10C08K7/26
Inventor 李建三刘蔚霖刘子平
Owner SOUTH CHINA UNIV OF TECH
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