A method for nano-deep surface activation of PTFE-based membranes

Abstract

The invention discloses a method for nano-deep surface activation of a PTFE-based membrane, which relates to the technical field of polymer composite materials. After covering the functional surface of a PTFE-based nano-functional composite membrane, one side of the membrane to which adhesive glue is applied is activated. Surface activation treatment, the high-toughness cold adhesive tape is migrated and compounded on the membrane surface of the PTFE-based nano-functional composite membrane with an activated structural layer through a mechanical sizing device, forming an adhesive-film composite. Produces extremely strong affinity and high-strength bonding performance between the film and the glue, forms a film-glue complex, and realizes film / adhesive bonding composite, film / film bonding composite, film / paste base layer bonding. Integration, while improving the bonding strength and peeling force of the glue and the durability of the bonding force, it solves the technical problem of PTFE material without any material bonding.

Description

technical field [0001] The invention relates to the technical field of polymer composite materials, in particular to a method for nano-deep surface activation of PTFE-based membranes. Background technique [0002] Wind turbines installed in high-altitude, mountainous, and low-temperature and freezing areas in China are affected by the climate. Every winter, the blades freeze to varying degrees, resulting in abnormal blade operation. The output power of the fan cannot reach the guaranteed power and shut down, losing a lot of electricity revenue. There are even blade breakage accidents. The lack of icing on the surface of blades and the lack of anti-icing technology and efficiency have a direct impact on wind power, resulting in the loss of wind power benefits and constituting a shared safety risk for unit operation. Solving the problem of fan blade icing is an important issue in the wind power industry worldwide. Domestic and foreign scientific research institutions and the ...

AI Technical Summary

Problems solved by technology

If the electric heating of one blade fails or fails, the entire electric heating deicing system must stop running, otherwise the blade will cause a fault or accident due to the imbalance of the counterweight and the serious deviation of the center of gravity due to the difference in the quality of ice formation. The safety hazard of being struck by lightning

[0006] Although PTFE-based materials have the performance advantage of low surface tension, after being made into a PTFE-based film, relying solely on its low surface tension non-adhesion performance, it is still unable to resist the adhesion of ice crystals on the fan blades, and thus cannot achieve true anti-corrosion. The effect and purpose of anti-icing on the surface of fan blades

And if the measures to modify PTFE are not taken, the PTFE-based membrane made will not be directly and firmly bonded on the surface of the fan blade, and the modified PTFE-based membrane will also have the advantage of low surface tension performance. will greatly reduce

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