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A kind of fluorine-containing polymer waterproof antifouling surface treatment agent and its preparation method and application

A surface treatment agent, polymer waterproof technology, applied in surface reaction electrolytic coating, biocide-containing paint, antifouling/underwater coating, etc. Increase and other problems to achieve the effect of improving the performance of waterproof, anti-fouling and oil-proof

Active Publication Date: 2021-04-30
无锡市恒创嘉业纳米材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the actual problem is that the price of fluorine-containing compound monomers is relatively high, and excessive use will lead to a significant increase in cost. Fluorine-containing compound monomers will inevitably disperse inside the coating during the preparation process, and only on the surface of the coating Only fluorine molecules can play a role. This effect makes the fluorine molecules inside the coating wasted. How can the content of fluorine molecules on the surface of the coating be relatively increased without increasing the production cost, so as to achieve better water and oil repellency? Antifouling performance is an urgent problem to be solved

Method used

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  • A kind of fluorine-containing polymer waterproof antifouling surface treatment agent and its preparation method and application
  • A kind of fluorine-containing polymer waterproof antifouling surface treatment agent and its preparation method and application
  • A kind of fluorine-containing polymer waterproof antifouling surface treatment agent and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Preparation of magnetically loaded fluoropolymer emulsion:

[0026] A1: In terms of weight percentage, take 30% acrylate, 3% divinylbenzene, and 2% isobutanol as porogens and dissolve them in 65% 80°C hot ethanol as the oil phase; after polymerization, acrylate itself has Good elasticity can increase the toughness of the surface treatment agent after film formation.

[0027] A2: According to the percentage by weight, get 6% sodium gluconate, 3% microcrystalline cellulose and 91% deionized water and mix to obtain the water phase, and add 10% magnetic nanoparticles in the water phase to obtain Aqueous phase suspension; sodium gluconate delays the coagulation time, increases the plasticity and strength of the film, and microcrystalline cellulose acts as a dispersant. Magnetic nanoparticles for ε-Fe 2 o 3 Nanoparticles with a particle size of 10nm. Although the particle size is below 15nm, the single-phase iron oxide nanoparticles can still maintain excellent magneti...

Embodiment 2

[0037] (1) Preparation of magnetically loaded fluoropolymer emulsion:

[0038] A1: In terms of weight percentage, take 33% acrylate, 4.5% divinylbenzene, and 3% isobutanol as porogens and dissolve them in 59.5% hot ethanol at 83°C as the oil phase; after polymerization, acrylate itself has Good elasticity can increase the toughness of the surface treatment agent after film formation.

[0039] A2: According to the percentage by weight, get 7% sodium gluconate, 4% microcrystalline cellulose and 89% deionized water and mix to obtain the water phase, and add the magnetic nanoparticles with a mass percentage of 12% to the water phase to obtain Aqueous phase suspension; sodium gluconate delays the coagulation time, increases the plasticity and strength of the film, and microcrystalline cellulose acts as a dispersant. Magnetic nanoparticles for α-Fe 2 o 3 Nanoparticles with a particle size of 12nm. Although the particle size is below 15nm, the single-phase iron oxide nanoparticles...

Embodiment 3

[0049] (1) Preparation of magnetically loaded fluoropolymer emulsion:

[0050] A1: In terms of weight percentage, take 35% acrylate, 6% divinylbenzene, and 4% isobutanol as porogens and dissolve them in 55% 85°C hot ethanol as the oil phase; after polymerization, acrylate itself has Good elasticity can increase the toughness of the surface treatment agent after film formation.

[0051] A2: According to the weight percentage, take 8% sodium gluconate, 5% microcrystalline cellulose and 87% deionized water and mix to obtain the water phase, and add the magnetic nanoparticles with a mass percentage of 10-14% in the water phase , to obtain an aqueous suspension; sodium gluconate delays the coagulation time, increases the plasticity and strength of the film, and microcrystalline cellulose is used as a dispersant. Magnetic nanoparticles for γ-Fe 2 o 3 Nanoparticles with a particle size of 14nm. Although the particle size is below 15nm, the single-phase iron oxide nanoparticles can...

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Abstract

The invention discloses a fluorine-containing polymer waterproof and antifouling surface treatment agent and its preparation method and application. The surface treatment agent comprises the following components in parts by weight: 100-150 parts of magnetic-loaded fluorine-containing polymer emulsion; 5-30 parts of miscible liquid solvents; 0.03-0.1 parts of dispersants; 0.2-2 parts of film-forming aids; 0.6-1.8 parts of leveling agents; 0.1-0.3 parts of defoamers; The emulsion uses magnetic nanoparticles as the core, and the outer layer of the magnetic nanoparticles is wrapped with a porous adsorption film as a functional connection layer for connecting the fluorine-containing polymer as the shell. The invention is applicable to the surface of aluminum alloy material after anodic oxidation, and the external magnetic field driving force is used when forming the film, so that the nano-magnetic particles with fluorine molecular fragments migrate to the film with the magnetic force, and the regularization is carried out under the action of the magnetic force. Sorting, forming a dense layer of fluorine molecules, greatly improving its waterproof, antifouling and oilproof performance.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a fluorine-containing polymer waterproof and antifouling surface treatment agent and its preparation method and application. Background technique [0002] Due to its light weight and anodized surface, aluminum has the characteristics of anti-corrosion, durable, dirt-resistant, environmentally friendly and beautiful, and is widely used in building curtain walls and shells of smart electronic products. However, the surface of anodized aluminum is porous, and fingerprints or other pollutants and their residues are difficult to remove during use. For this reason, most of the prior art uses a protective film layer on the surface of anodized aluminum to change the characteristics of the surface of anodized aluminum, making it difficult for pollutants to adhere to the surface of anodized aluminum products, so it also has good waterproof Excellent properties of oil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/16C09D127/18C09D5/16C09D7/62C25D11/24
CPCC08K2003/2272C08K2201/01C08K2201/011C09D5/1668C09D5/1687C09D127/18C09D133/16C25D11/246C08K9/10C08K3/22
Inventor 芮燕芳
Owner 无锡市恒创嘉业纳米材料科技有限公司
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