Method for preparing epoxy resin super-hydrophobic coat
A technology of super-hydrophobic coating and epoxy resin, applied in epoxy resin coating, coating, liquid spraying equipment, etc., can solve the problems of poor applicability, high production cost of super-hydrophobic surface, complicated preparation process, etc., and achieve low cost , Easy to obtain raw materials, good repeatability
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Embodiment 1
[0043] (1) Preparation of coating sol:
[0044] Dissolve 0.35g of nano-sized silica balls and 0.21g of micro-sized silica particles in 25ml of absolute ethanol, add 0.18g of silane coupling agent KH-550, stir for a period of time at room temperature, and then add epoxy resin coating 6.2g and 0.21g of octadecyltrichlorosilane, continue to stir and react to prepare a coating sol; epoxy resin is selected as epoxy resin water-based paint;
[0045] (2) Surface coating film of base material:
[0046] Dip the glass sheet into the sol prepared in step (1), and use a pulling machine to slowly and uniformly remove from the sol at a pulling speed of 50 mm / s, and then stand at room temperature for later use;
[0047] (3) Heating curing process:
[0048] Put the base material of the coating film in step (2) into an oven, raise it to 180°C and heat it to cure and crosslink the epoxy resin, and after taking it out, the epoxy resin superhydrophobic coating is obtained.
[0049] As attached figure 1 As ...
Embodiment 2
[0051] (1) Preparation of coating sol:
[0052] Dissolve 0.85g of nano-sized silica balls and 0.53g of micro-sized silica particles in 25ml of absolute ethanol, add 0.19g of silane coupling agent KH-550, stir for a period of time at room temperature, and then add epoxy resin coating 6.2 g and 0.21g of octadecyltrichlorosilane, continue to stir the reaction to prepare a coating sol; epoxy resin is selected as epoxy resin water-based paint;
[0053] (2) Surface coating film of base material:
[0054] Dip the glass sheet into the sol prepared in step (1), and use a pulling machine to slowly and uniformly remove from the sol at a pulling speed of 5 mm / s, and then stand at room temperature for use after being lifted;
[0055] (3) Heating curing process:
[0056] Put the base material of the coating film in step (2) into an oven, raise 180°C and heat to cure and crosslink the epoxy resin, and after taking it out, the epoxy resin superhydrophobic coating is obtained.
[0057] As attached figu...
Embodiment 3
[0059] (1) Preparation of coating sol:
[0060] Dissolve 0.31g of nano-sized silica balls and 0.33g of micro-sized silica particles in 25ml of absolute ethanol, add 0.44g of silane coupling agent KH-550, stir for a period of time at 60℃, and then add epoxy resin coating 6.1g and 0.20g of octadecyltrichlorosilane, continue to stir and react to prepare a coating sol; epoxy resin is selected as water-based epoxy resin paint;
[0061] (2) Surface coating film of base material:
[0062] Dip the glass sheet into the sol prepared in step (1), and use a pulling machine to slowly and uniformly remove from the sol at a pulling speed of 50 mm / s, and then stand at room temperature for later use;
[0063] (3) Heating curing process:
[0064] Put the base material of the coating film in step (2) into an oven, raise the temperature of 200 DEG C and heat to cure and crosslink the epoxy resin, and after taking it out, the epoxy resin super-hydrophobic coating is obtained.
[0065] As attached image 3 A...
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