Friction-resistant super-hydrophobic surface and preparation method thereof
A super-hydrophobic surface, super-hydrophobic technology, applied in the field of super-hydrophobic material preparation, can solve the problems of reducing the service life of super-hydrophobic surface, limiting application, being damaged by abrasion or scratching, etc., and achieving strong mechanical stability, low cost and practicality. strong effect
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[0038] In order to clearly and completely describe the technical solution of the present invention and its specific working process, in conjunction with the accompanying drawings, the specific implementation of the present invention is as follows:
[0039] A kind of abrasion-resistant superhydrophobic surface, comprising porous metal foam skeleton 1 and filling material 2 filled in the surface and pores of porous metal foam skeleton 1, said filling material 2 is made up of superhydrophobic material 3 and adhesive material 4 .
[0040] The porous metal skeleton 1 is nickel foam, copper foam or iron foam; the porous metal skeleton 1 has a thickness of 1mm-2mm and a pore diameter of 75ppi-110ppi.
[0041] The superhydrophobic material 3 is a PDVB material; the adhesive 4 is a PDMS material.
[0042] The porous metal skeleton 1 is a metal functional material with a skeleton structure and many pores. The superhydrophobic material 3 in the filling material 2 is the part that mainl...
Embodiment 1
[0044] This embodiment provides a method for preparing a friction-resistant superhydrophobic surface, which includes the following steps;
[0045] (1) Preparation of porous metal foam skeleton: the porous metal foam skeleton used is nickel foam, and the nickel foam is cut into a size of 100mm*100mm, and fixed on a glass plate with 3M adhesive tape;
[0046](2) Preparation of filling material: the filling material used is a mixture of superhydrophobic material and binder 4 . The superhydrophobic material used is PDVB powder, and the binder used is PDMS. First, add 5 g of PDVB powder to 24 g of PDMS diluted with n-hexane in 5 times (the mass of PDMS is 4 g, the mass of n-hexane is 20 g, and the mass ratio is 1:5), stirring continuously to make all the PDVB The powder can be fully dispersed into the solution, and then placed on a hot table at about 50°C while heating and stirring, the purpose is to volatilize the n-hexane until the whole mixture is viscous;
[0047] Among them,...
Embodiment 2
[0052] This embodiment provides a method for preparing a superhydrophobic surface resistant to needle tip scratching, which includes the following steps;
[0053] (1) Preparation of the porous metal foam skeleton: the porous metal foam skeleton used is nickel foam, and the nickel foam is cut into a size of 100mm*100mm, and fixed on a glass plate with 3M adhesive tape;
[0054] (2) Preparation of filling material: the filling material used is a mixture of superhydrophobic material and adhesive. The superhydrophobic material used is PDVB powder, and the binder used is PDMS. First, add 5g of PDVB powder to 24g of PDMS diluted with n-hexane in 8 times (the mass of PDMS is 4g, the mass of n-hexane is 20g, and the mass ratio is 1:5), stirring continuously to make all the PDVB The powder can be fully dispersed into the solution, and then placed on a hot table at about 50°C while heating and stirring, the purpose is to volatilize the n-hexane until the whole mixture is viscous;
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Abstract
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