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Underwater super-oleophobic polymer brush coating and preparation method thereof

An underwater super-oleophobic and polymer brush technology, which is applied to coatings, devices for coating liquids on surfaces, and special surfaces, can solve problems such as harsh reaction conditions, high preparation costs, and cumbersome surface pretreatment, and achieve The effect of mild reaction conditions

Inactive Publication Date: 2021-04-23
BEIHANG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Atom transfer radical polymerization, reversible addition-fragmentation chain transfer polymerization and other techniques are often used to graft zwitterionic polymers on the surface of materials, but most of these methods have problems such as harsh reaction conditions, cumbersome surface pretreatment, and high preparation costs.

Method used

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  • Underwater super-oleophobic polymer brush coating and preparation method thereof
  • Underwater super-oleophobic polymer brush coating and preparation method thereof
  • Underwater super-oleophobic polymer brush coating and preparation method thereof

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Embodiment Construction

[0041] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0042] The embodiment of the present invention discloses a preparation method of an underwater super-oleophobic polymer brush coating, comprising the following steps:

[0043] (1) Wash the PDMS substrate with n-hexane, acetone, ethanol and water in an ultrasonic cleaner, and place it in air to dry;

[0044] (2) Add a certain amount of TBEC into isopropanol, stir and dissolve, and prepare a 1wt% initiator solution, then immerse the clean substrate in the initiator solution, and swell and adsorb for 2 hours;

[0045](3) Add a certain...

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Abstract

The invention discloses a preparation method of an underwater super-oleophobic polymer brush coating. The method comprises the following steps of by using 2-methacryloyloxyethyl phosphorylcholine (MPC) as a raw material, selecting hydrophilic ferrous gluconate and tert-butylperoxy 2-ethyl hexyl carbonate (TBEC) to form a redox initiation system; and a zwitterionic polymer brush coating is constructed on the surface of a base material by utilizing a surface-initiated polymerization reaction. The coating prepared by the method has excellent underwater super-oleophobicity and biological adhesion prevention performance.

Description

technical field [0001] The invention relates to the technical field of material surface modification, and more specifically relates to a zwitterionic polymer brush coating and a preparation method thereof. Background technique [0002] my country's deep-water marine areas are rich in oil and gas resources, and the development and utilization of offshore oil and gas resources will effectively alleviate the current energy shortage. However, the complex and harsh marine environment makes underwater oil and gas production and transportation equipment face problems such as oil pollution adhesion and biofouling, which seriously threatens the safety of oil and gas production and the marine environment. [0003] Inspired by super-wetting phenomena such as self-cleaning of the surface of lotus leaves in nature and anti-oil pollution of fish skin underwater, the researchers prepared a series of super-wetting surfaces, which have been used in many fields such as oil-water separation, s...

Claims

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Application Information

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IPC IPC(8): B05D5/08B05D3/10C09D143/02C08F130/02C08F4/40
CPCB05D3/101B05D5/08C08F4/40C08F130/02C09D143/02
Inventor 吴俊涛李韶华宋昭峥蒋庆哲
Owner BEIHANG UNIV
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