Preparation method and application of PTFE-based film of offshore wind power single pile for preventing marine organism adhesion

A PTFE and offshore wind power technology, which is applied in the field of anti-marine bioadhesion of offshore wind power monopile based on PTFE membrane preparation, can solve the problems of no obvious adhesion of biological community mucous membranes, no solution to prevent marine fouling bioadhesion, etc. Good dimensional stability, good dimensional stability, the effect of not easy to change performance

Inactive Publication Date: 2021-03-12
CHINA THREE GORGES RENEWABLES YANGJIANG POWER CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these measures and specifications are mainly aimed at anti-corrosion of single piles, and have no obvious or long-term effect on anti-marine fouling biop

Method used

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  • Preparation method and application of PTFE-based film of offshore wind power single pile for preventing marine organism adhesion
  • Preparation method and application of PTFE-based film of offshore wind power single pile for preventing marine organism adhesion
  • Preparation method and application of PTFE-based film of offshore wind power single pile for preventing marine organism adhesion

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Experimental program
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Effect test

Embodiment 1

[0048] A method for preparing an offshore wind power single pile to prevent marine organisms from adhering based on a PTFE membrane provided in this embodiment includes

[0049] (1) Blending, pre-pressing, and pressing to obtain PTFE rods

[0050] Infiltrate the PTFE resin with aviation kerosene, which has the function of softening PTFE, and blend the infiltrated PTFE resin. The PTFE resin used is the particle powder of polytetrafluoroethylene dispersion resin, and the aviation kerosene and PTFE resin are blended at a mass ratio of 20:100. Injection; through hot pre-pressing and hot pushing at a temperature of 60°C, a speed of 25m / min, and a pressure of 5MPa, a PTFE rod of Ф17mm for monomer polymerization was obtained;

[0051] (2) PTFE membrane fusion polymerization

[0052] The monomer-polymerized PTFE rods are fused and polymerized under the action of hot calendering. The hot calendering temperature is 60°C and the speed is 25m / min. The PTFE rods are stretched laterally un...

Embodiment 2

[0060] What this embodiment provides is an application of Embodiment 1, including

[0061] (1) Application of uninstalled offshore wind power monopile

[0062] Directly wrap the PTFE-based film on the surface of the anti-corrosion layer of the underwater section of the single pile and the section of the wave splashing section. The junction of the mud entry section and the underwater section of the single pile is used as the starting point of film bonding, and the single pile is installed from bottom to top. Winding and bonding, the overlapping width of the film and the film is 20-50mm, and the overlapping is tightly compacted;

[0063] (2) Application of offshore wind power single piles that have been put into operation

[0064] According to the design of the outer diameter of the offshore wind power single pile 1 in actual application, the fiberglass steel sheet assembly 2 suitable for assembly at the offshore application site is prepared through the glass fiber reinforced p...

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Abstract

The invention discloses a preparation method and application of a PTFE-based film of an offshore wind power single pile for preventing marine organism adhesion, relates to the technical field of environment-friendly ocean engineering equipment antifouling materials, and adopts a high-density and high-orientation-degree film forming process to prepare the PTFE-based film with multiple nano/micron ultra-micro surface topography and having the advantages of ultralow surface energy, ultralow surface adhesion force, salt spray resistance, seawater resistance, corrosion resistance, adhesion resistance, contamination resistance, fatigue resistance, moisture absorption resistance, good dimensional stability, high wear resistance and high transparency, and solves the problem that static marine equipment such as offshore wind power (offshore platform) is adhered by marine fouling organisms. Adsorption of biocenosis mucous membranes on the surface of the film is greatly reduced, adsorbed marine fouling biocenosis can fall off automatically, and the marine fouling organisms are effectively prevented from contaminating and corroding the static marine equipment.

Description

technical field [0001] The invention relates to the technical field of antifouling materials for environment-friendly marine engineering equipment, in particular to a preparation method and application of a PTFE-based membrane for offshore wind power single piles to prevent marine organisms from adhering. Background technique [0002] No matter what kind of material is immersed in seawater, organic molecules and attached microorganisms in seawater will successively adhere to its surface within 24 hours and form an initial biofilm. Biofilm is an important place for the survival and development of marine microorganisms. In sea areas rich in microorganisms, if there are no suitable protective measures, further biofouling will form. For metal materials, microorganisms in biofilms are the main place for corrosion of materials, and almost all metals will suffer from the corrosion of microorganisms. [0003] The corrosion of microorganisms in the marine environment on offshore win...

Claims

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Application Information

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IPC IPC(8): B29D7/01E02D5/60E02D27/52
CPCB29D7/01E02D5/60E02D27/52E02D2300/0007
Inventor 刘建平彭作为向欣孙志禹吴建华李文伟刘太平刘俊峰刘艾华许新鑫倪道俊朱亚伟吴弘赵景鑫林成迪黄绍幸郭保东慕超李亚静
Owner CHINA THREE GORGES RENEWABLES YANGJIANG POWER CO LTD
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