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Process for preparing fluorin, silicon, epoxide modified low surface energy acrylate emulsion for heavy anti-corrosion paint

A fluorinated acrylate, high-quality epoxy technology, used in anti-corrosion coatings, etc., can solve problems such as affecting the use value, poor mechanical strength, poor water resistance, etc., achieve excellent elasticity and crack resistance, improve stain resistance, reduce cost effect

Inactive Publication Date: 2007-04-11
HUBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, acrylate copolymers still have disadvantages, such as poor water resistance, brittleness at low temperature, viscous loss at high temperature, easy stickiness, and slightly poor mechanical strength, which affects its use value.
So far, no good solution has been found to solve this kind of problem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The main monomer is a composite main monomer composed of 25-30 g of n-butyl acrylate, 5-10 g of methyl methacrylate and 5-10 g of styrene.

[0042] ① Add 0.5% to 1% nonionic emulsifier allyloxy nonylphenol polyoxyethylene ether and 0.5% to 1.5% anionic emulsifier to a 250ml four-necked flask equipped with an electric stirrer, condenser and thermometer Sodium hydrocarbyl acrylate-2-ethanesulfonate and 30g of water, the temperature of the water bath reaches 82±2°C, and 0.1% to 0.4% of the initiator ammonium persulfate is added;

[0043]② After 10 to 30 minutes, the main monomer is composed of 25 to 30 g of n-butyl acrylate, 5 to 10 g of methyl methacrylate and 5 to 10 g of styrene, and 3% to 15% of epoxy monomer methyl Glycidyl acrylate, the remaining nonionic emulsifier and anionic emulsifier, half of the pre-emulsion composed of 0.05% to 0.15% initiator and 25g water are added dropwise to the reaction bottle within 1h to 1.5h, and the remaining 1.0% to 3.0% of the noni...

Embodiment 2

[0047] The main monomer is a composite monomer composed of 25-30 g of n-butyl acrylate and 10-20 g of styrene.

[0048] ① Add 0.5% to 1% nonionic emulsifier polyoxyethylene arylphenol acrylate, 0.5% to 1.5% anionic emulsifier hydrocarbyl acrylic acid- 2-Sodium ethanesulfonate and 30g of water are heated up to a water bath temperature of 82±2°C, and 0.1% to 0.4% of initiator potassium persulfate is added;

[0049] ② After 10-30 minutes, the main monomer n-butyl acrylate 25-30g and styrene 10-20g composite monomer, 3%-15% epoxy monomer glycidyl methacrylate, and the remaining non-ionic emulsification half of the pre-emulsion composed of 0.05% to 0.15% initiator and 25g water is added dropwise to the reaction bottle within 1h to 1.5h, and the remaining nonionic emulsifier is 1.0% to 3.0% , the remaining anionic emulsifier 2.0% to 4.5%;

[0050] ③Add all the fluorine monomer nonadecafluoroheptyl acrylate, silicon monomer vinyltriethoxysilane and remaining epoxy monomer glycidyl ...

Embodiment 3

[0053] The main monomer is a composite monomer composed of 25-30g of n-butyl acrylate and 10-20g of methyl methacrylate.

[0054] ① Add 0.5% to 1% nonionic emulsifier polyoxyethylene arylphenol acrylate, 0.5% to 1.5% anionic emulsifier p-styrene Sodium sulfonate and 30g of water are heated up to a water bath temperature of 82±2°C, and 0.1% to 0.4% of initiator potassium persulfate is added;

[0055] ② After 10-30 minutes, mix the main monomer n-butyl acrylate 25-30g, methyl methacrylate 10-20g composite monomer, 3%-15% epoxy monomer glycidyl methacrylate, and the remaining Nonionic emulsifier and anionic emulsifier, half of the pre-emulsion composed of 0.05% ~ 0.15% initiator and 25g water are added dropwise into the reaction bottle within 1h ~ 1.5h, and the remaining nonionic emulsifier is 1.0% ~3.0%, the remaining anionic emulsifier 2.0%~4.5%;

[0056] ③ Add all the fluorine monomer dodecafluoroheptyl methacrylate, the silicon monomer γ-methacryloxypropyl trimethoxysilane ...

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PUM

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Abstract

The present invention discloses preparation process of fluorine, silicon and epoxide modified low surface energy acrylate emulsion for heavy anti-corrosive paint. The modified acrylate emulsion is prepared with one or more of styrene, methyl methacylate, butyl acrylate, isobutyl acrylate, tert-butyl acrylate, etc as the main monomer and through introducing modifying fluorine, silicon and epoxide. The process of the present invention has simple operation and high yield, and the prepared emulsion has high water tolerance, high solvent tolerance, high acid and alkali resistance, high stability and capacity of forming film with surface energy as low as 15.5 mN / m.

Description

technical field [0001] The invention belongs to the preparation of heavy-duty anti-corrosion coatings, in particular to a preparation method of fluorine, silicon and epoxy-modified low-surface-energy acrylate emulsions for heavy-duty anti-corrosion coatings. Background technique [0002] With the rapid development of industry, especially the development of petrochemical enterprises in the past two decades, the progress of marine technology has produced some harsher corrosive environments: chemical environment (chemical medium, chemical atmosphere) and marine environment (marine climate, Seawater), etc., put forward higher requirements for the protection of marine structures, bridges, ships, power generation equipment, transmission towers, chemical equipment, storage tanks, pipelines and platforms in such harsh corrosive environments. In this case, From about the 1960s, in order to distinguish the previous anti-corrosion coatings, heavy anti-corrosion coati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F212/08C08F220/10C08F2/24C08F2/44C09D125/14C09D5/08
Inventor 鲁德平熊娉婷陈沛志管蓉
Owner HUBEI UNIV
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