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An enhanced antifouling polymer coating with self-healing properties and its preparation

A polymer coating and enhanced technology, which is applied in the field of enhanced anti-fouling polymer coating and its preparation, can solve the problems of easy damage and poor mechanical properties, and achieve enhanced adhesion and poor mechanical properties. Effect

Active Publication Date: 2021-07-02
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide an enhanced antifouling polymer coating with self-healing properties and its preparation method, so as to overcome the defects of poor mechanical properties and easy damage in the prior art

Method used

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  • An enhanced antifouling polymer coating with self-healing properties and its preparation
  • An enhanced antifouling polymer coating with self-healing properties and its preparation
  • An enhanced antifouling polymer coating with self-healing properties and its preparation

Examples

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Effect test

Embodiment 1

[0052] (1) Dissolve the intercalation agent cetyltrimethylammonium bromide (CTAB) in deionized water to prepare a solution with a concentration of 1 wt%, then add equal mass of montmorillonite higher than 300 mesh and stir at high speed , total solution weight 100g. Sonicate for another 5 minutes to make it disperse as evenly as possible. The dispersion was centrifuged and washed at high speed to remove excess intercalation agent, and finally the modified montmorillonite was obtained by freeze-drying, which was dissolved in tetrahydrofuran solvent to prepare a 0.1g / mL solution, which was removed through a 40μm filter head. For larger aggregates, a clear dispersion was obtained for later use.

[0053] (2) 2 parts of 2,2'-bipyridine, 1 part of Br-PDMS-Br (2g), 200 parts of dimethylaminoethyl methacrylate, 10 mL of mixed solvent of n-propanol and 2-butanone (volume ratio of 7 / 3) Add it into a 50mL inclined two-necked flask, and vacuumize the closed system with nitrogen at a low...

Embodiment 2

[0059] (1) Dissolve the intercalation agent cetylpyridinium bromide (CPB) in deionized water to prepare a solution with a concentration of 5wt%, then add bentonite with an equal mass higher than 300 mesh and stir at a high speed, the total weight of the solution is 100g . Sonicate for another 10 minutes to make it disperse as evenly as possible. The dispersion liquid was centrifuged and washed at high speed to remove excess intercalation agent, and finally the modified bentonite was obtained by freeze-drying, which was dissolved in tetrahydrofuran solvent and prepared into a 0.1g / mL solution, which was removed through a 40μm filter head. The agglomerates were obtained to obtain a clear dispersion for later use.

[0060] (2) 2 parts of pentamethyldiethylenetriamine, 0.5 parts of Br-PDMS-Br (2g), 200 parts of methacrylic acid, 10 mL of mixed solvent of n-propanol and 2-butanone (volume ratio is 7 / 3) Add it into a 50mL oblique two-necked flask, and vacuumize the closed system w...

Embodiment 3

[0063] (1) The intercalation agent sodium dodecylbenzenesulfonate (SDS) is dissolved in deionized water to prepare a solution with a concentration of 10wt%, and then kaolin of equal mass higher than 300 mesh is added and stirred at high speed, the total weight of the solution is 100g. Sonicate for another 15 minutes to make it disperse as evenly as possible. The dispersion was centrifuged and washed at high speed to remove the excess intercalation agent, and finally the modified kaolin was obtained by freeze-drying, which was dissolved in tetrahydrofuran solvent and prepared into a 0.1g / mL solution, which was removed through a 40μm filter head. The agglomerates were obtained to obtain a clear dispersion for later use.

[0064] (2) 2 parts of 2,2'-bipyridine, 2 parts of Br-PDMS-Br (2g), 200 parts of hydroxyethyl acrylate, 10 mL of mixed solvent of n-propanol and 2-butanone (volume ratio is 7 / 3) Add it into a 50mL oblique two-necked flask, and vacuumize the closed system with ni...

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Abstract

The invention relates to an enhanced antifouling polymer coating with self-repairing performance and a preparation method thereof. The method includes: preparation of organically modified inorganic particles, preparation of amphiphilic block copolymer, and enhanced antifouling polymer coating. This method achieves synergistic antifouling through composite coatings, significantly improves the mechanical properties of antifouling coatings in harsh environments, and achieves long-term stability through self-healing, which is expected to be applied to marine antifouling coatings and other fields.

Description

technical field [0001] The invention belongs to the field of antifouling materials, in particular to an enhanced antifouling polymer coating with self-repairing performance and a preparation method thereof. Background technique [0002] More than two-thirds of the earth's surface is covered by water, which is an important source of social progress and sustainable development. However, underwater equipment systems are permanently subjected to additional loads due to the spontaneous colonization of harmful aquatic organisms (microorganisms and macroorganisms) on their surfaces, a natural process known as biofouling. In several industrial sectors such as water purification systems, desalination, aquaculture and the marine industry, such biofouling can cause serious environmental and economic losses. The impact of biofouling is enormous, and this biofouling may also pose a potential health risk to humans due to the contact between attached biofouling matter in systems such as s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/04C09D5/16C09D7/62C08G18/65C08G18/61C08G18/63C08G18/34
CPCC08G18/348C08G18/4072C08G18/61C08G18/63C08G18/6541C09D5/1662C09D5/1687C09D175/04C08K9/04C08K7/00C08K3/346
Inventor 何春菊刘子媛
Owner DONGHUA UNIV
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