Antifouling coating for marine net wire and preparation method of antifouling coating

A technology of anti-fouling coating and network cable, which is applied in the field of material science, can solve the problems of flexibility and low bactericidal activity, and achieve the effects of improving hydrophilicity, improving bactericidal activity, good adhesion and weather resistance

Active Publication Date: 2020-01-24
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to overcome the problems of the flexibility and low bactericidal activity of the matrix resin in the prior art, provide a marine network cable antifouling coating and its preparation method, and synthesize a new quaternary diisobutylene / pentyl acrylate / styrene / Isobornyl methacrylate copolymer resin; the synthetic multi-polyethylene resin has excellent flexibility and good adhesion to the network cable and weather resistance; it can significantly improve the anti-fouling ability, reduce environmental pollution, and reduce breeding maintenance cost, greatly improving the output and quality of seafood farming

Method used

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  • Antifouling coating for marine net wire and preparation method of antifouling coating
  • Antifouling coating for marine net wire and preparation method of antifouling coating
  • Antifouling coating for marine net wire and preparation method of antifouling coating

Examples

Experimental program
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Effect test

Embodiment 1

[0040] A method for preparing an antifouling coating for marine network cables, comprising the following steps:

[0041] (1) Modified nano-zinc oxide: a. Mix nano-zinc oxide and coupling agent in a xylene solution with a mass ratio of 15:0.8, heat and stir, the heating temperature is 75°C, the heating time is 3h, and the stirring speed is 400 rpm, the coupling agent is vinyltriethoxysilane; b, drop to room temperature and filter, add diethyl ether to precipitate the filtrate, and then dry to obtain modified nano-zinc oxide with a particle size of 35nm.

[0042] (2) Preparation of multi-component acrylic acid composite resin: 0.5g of azobisisobutyronitrile, 50g of xylene, 12g of styrene, 20g of n-pentyl acrylate, 18g of isobornyl methacrylate and 15g of diisobutylene were mixed in a four-necked flask , stirred for 25 minutes, and the stirring speed was 550 rpm to obtain a multi-component acrylic composite resin. The number-average molecular weight of the obtained multi-componen...

Embodiment 2

[0047] The difference with Example 1 is that a preparation method of marine network cable antifouling coating comprises the following steps:

[0048] (1) Modified nano-zinc oxide: a. Mix nano-zinc oxide and coupling agent in xylene solution at a mass ratio of 10:0.5, heat and stir, the heating temperature is 60°C, the heating time is 2.5h, and the stirring speed 150 rev / min, the coupling agent is vinyltriethoxysilane; b. Cool down to room temperature and filter, add diethyl ether to precipitate the filtrate, and then dry to obtain modified nano-zinc oxide with a particle size of 20nm.

[0049] (2) Preparation of multi-component acrylic acid composite resin: 0.2g azobisisobutyronitrile, 45g xylene, 9g styrene, 16g amyl acrylate, 9g isobornyl methacrylate and 10g diisobutylene were mixed in a four-necked flask, Stir for 20 minutes at a stirring speed of 300 rpm to obtain a multi-component acrylic composite resin. The number-average molecular weight of the obtained multi-componen...

Embodiment 3

[0054] The difference with Example 1 is that a preparation method of an antifouling coating for marine network cables comprises the following steps: (1) modifying nano-zinc oxide: a, using nano-zinc oxide and coupling agent in a mass ratio of 20:1 Mix in xylene solution, heat and stir, the heating temperature is 90°C, the heating time is 3.5h, the stirring speed is 600 rpm, and the coupling agent is vinyltriethoxysilane; b, drop to room temperature and filter , add diethyl ether to precipitate the filtrate, and then dry to obtain the modified nano zinc oxide with a particle size of 50nm.

[0055] (2) Preparation of multi-component acrylic acid composite resin: 0.8g azobisisobutyronitrile, 55g xylene, 15g styrene, 25g amyl acrylate, 25g isobornyl methacrylate and 20g diisobutylene were mixed in a four-necked flask, Stir for 30 minutes at a stirring speed of 800 rpm to obtain a multi-component acrylic composite resin with a number-average molecular weight of 6750, a weight-avera...

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Abstract

The invention relates to the field of materials science, and discloses an antifouling coating for a marine net wire and a preparation method of the antifouling coating aiming at the problem of low flexibility and bactericidal activity of a matrix resin. The antifouling coating comprises the following components in percent by mass: 2-5% of modified nano zinc oxide, 2-7% of P-aminobenzoic acid, 2-7%of sodium benzoate, 2-7% of copper pyrithione, 2-7% of SeaNine211, 3-12% of oleamide, 0.5-2% of phytic acid, 2-6% of ZH 6900-20X, and the balance poly acrylic acid composite resin. A quaternary noveldiisobutylene / n-pentyl acrylate / styrene / isobornyl methacrylate copolymer resin is synthesized, the synthesized multi-polyethylene resin has excellent flexibility, and has good adhesion and weather resistance to a net wire, the anti-fouling ability is significantly improved, the environmental pollution and aquaculture maintenance cost are reduced, and the yield and quality of seafood aquaculture are relatively greatly improved.

Description

technical field [0001] The invention belongs to the field of material science, and in particular relates to an antifouling coating for marine network cables and a preparation method thereof. Background technique [0002] During the development of the marine economy and marine aquaculture industry, the culture cages have been placed in seawater for a long time, and the bacterial colonies will adhere to their surfaces. , secretion of mucus and accompanied by a series of abnormal growth, causing the network cable material to be attached and fouled. The mass reproduction of marine fouling organisms on the cage network will not only increase the weight of the cage, increase the resistance of the cage to water waves and undercurrents, accelerate the corrosion and degradation of PE materials, and block the mesh is not conducive to the absorption of nutrients and oxygen in the water body. Exchange, and even destroy the healthy ecological balance of the water body in the cage, will ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/08C09D133/10C09D5/16C09D5/14C08F220/18C08F212/08C08F220/14
CPCC09D133/08C09D133/10C09D5/1687C09D5/1668C09D5/14C08F220/18C08K2003/2296C08K2201/011C08K13/06C08K9/06C08K3/22C08K3/38
Inventor 张海龙
Owner ZHEJIANG OCEAN UNIV
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