Hydrogel capable of being used for marine antifouling and preparation method thereof

A marine antifouling and hydrogel technology, applied in gel preparation, chemical instruments and methods, colloid chemistry, etc., can solve the problems of poor mechanical properties of hydrogels, achieve excellent anti-swelling properties, improve mechanical properties, and enhance Effect of anti-swelling properties

Active Publication Date: 2022-02-11
MARINE FISHERIES RES INST OF ZHEJIANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a hydrogel that can be used for marine antifouling and its preparation method, which effectively solves the problem of poor mechanical properties of the hydrogel, significantly improves the mechanical properties of the obtained hydrogel, and has more Excellent anti-swelling performance and anti-protein adsorption, anti-algae adhesion performance

Method used

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  • Hydrogel capable of being used for marine antifouling and preparation method thereof
  • Hydrogel capable of being used for marine antifouling and preparation method thereof
  • Hydrogel capable of being used for marine antifouling and preparation method thereof

Examples

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Effect test

Embodiment 1

[0026] A method for preparing marine anti-pollution gel, comprising the following steps: first, polyvinyl alcohol is added to deionized water, heated at 90°C to a colorless and transparent solution; after cooling to room temperature, acrylamide is added, and water is added to stir until completely dissolved; add picoxystrobin and Tween 80, and continue to stir for 12 minutes; transfer to an ultrasonic pulverizer and ultrasonically emulsify for 30 minutes under the condition of 250w, until the solution becomes a homogeneous emulsion, add N,N'-methylenebispropylene Amide, initiator ammonium persulfate; finally, pour the solution into a flake glass mold and react at a constant temperature of 65°C for 7 hours until gelling.

[0027] In the above steps, the mass volume ratio of polyvinyl alcohol to deionized water is 1g:10mL; the mass ratio of acrylamide to polyvinyl alcohol is 3:1; the mass ratio of picoxystrobin to polyvinyl alcohol is 0.5:1; The mass ratio of N,N'-methylenebisac...

Embodiment 2

[0029] A kind of hydrogel preparation method that can be used for marine antifouling differs from Example 1:

[0030] During the hydrogel preparation process: the mass ratio of acrylamide to polyvinyl alcohol is 3.2:1; the mass ratio of picoxystrobin to polyvinyl alcohol is 0.55:1; The mass ratio of ammonium sulfate to polyvinyl alcohol is 0.38:6:100; the mass ratio of Tween 80 to polyvinyl alcohol is 0.0055:1.

Embodiment 3

[0032] A kind of hydrogel preparation method that can be used for marine antifouling differs from Example 1:

[0033] During the hydrogel preparation process: the mass ratio of acrylamide to polyvinyl alcohol was 3.5:1; the mass ratio of picoxystrobin to polyvinyl alcohol was 0.6:1; The mass ratio of ammonium sulfate to polyvinyl alcohol is 0.4:7:100; the mass ratio of Tween 80 to polyvinyl alcohol is 0.006:1.

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Abstract

The invention discloses hydrogel capable of being used for ocean antifouling and a preparation method thereof, and belongs to the technical field of ocean antifouling. The hydrogel is specifically prepared by the steps of carrying out free radical polymerization on an acrylamide monomer under the action of N, N '-methylene bisacrylamide to obtain polyacrylamide, and entangling the polyacrylamide with polyvinyl alcohol to obtain a hydrogel matrix; and enabling picoxystrobin to enter a macromolecular network constructed by acrylamide and polyvinyl alcohol in a block sequence manner. The formed hydrogel has better mechanical properties and swelling resistance. In addition, the hydrogel prepared by the method has better protein adsorption resistance and seaweed adhesion resistance.

Description

technical field [0001] The invention belongs to the technical field of marine antifouling, and in particular relates to a hydrogel which can be used for marine antifouling and a preparation method thereof. Background technique [0002] Hydrogel is a material with a three-dimensional network cross-linked structure that swells in water without dissolving. Due to their excellent biocompatibility, electrical conductivity, self-healing, adsorption and excellent mechanical properties, hydrogels are widely used in tissue engineering, biomedicine, microfluidics, stretchable and biointegrated electronics, etc. field. Among them, polyvinyl alcohol (PVA) hydrogel is widely used in various fields such as medicine, environmental protection, and daily chemical industry due to its low toxicity and good biocompatibility. However, because hydrogel materials contain a large amount of free water in their structures, they generally have low mechanical strength, are brittle, have low elongatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/26C08L29/04C08K5/3432C08J3/075B01J13/00
CPCC08J3/075B01J13/0065C08J2333/26C08J2429/04C08K5/3432
Inventor 李振华周永东朱文斌张洪亮
Owner MARINE FISHERIES RES INST OF ZHEJIANG
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