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Polypyrrole/graphene/epoxy resin super-slippage coating suitable for photo-thermal deicing and preparation method thereof

An epoxy resin, polypyrrole technology, applied in epoxy resin coatings, coatings, etc., can solve the problem of losing water sliding properties, hindering coating application and handling, super-slip surface anti-icing, photothermal deicing is not very good. Ideal and other problems, to achieve the effect of enhancing compactness and mechanical strength, stability, good stability and anti-icing performance, and improving photothermal deicing performance

Active Publication Date: 2021-12-21
苏州邦得纳米涂层科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the super-slip coating prepared by these two methods is very easy to lose due to the "lubricating fluid", resulting in short service life and unstable performance.
Moreover, most of the "lubricating fluids" used are cost and effective, and many fluorinated liquids that are cheap, easy to prepare, and have low surface energy are the first choice. However, fluorinated liquids have varying degrees of pollution, which hinders the practical application of coatings. and processing
A small part of the "lubricant" used is siloxane polymer. The expensive price and the waste caused by the preparation process greatly increase the cost of the coating and hinder the actual application of the coating.
[0004] Although the super-slip coatings currently prepared can reduce the adhesion strength of ice on the coating surface, most of the super-slip coatings cannot achieve long-term and stable anti-icing, especially when the temperature is too low or the humidity is too high. In such an environment, the anti-icing and subsequent photothermal deicing of super-slip surfaces are not very ideal. Long-term ice coverage will destroy the surface structure and cause the surface to weaken or lose its sliding performance against water.

Method used

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  • Polypyrrole/graphene/epoxy resin super-slippage coating suitable for photo-thermal deicing and preparation method thereof
  • Polypyrrole/graphene/epoxy resin super-slippage coating suitable for photo-thermal deicing and preparation method thereof
  • Polypyrrole/graphene/epoxy resin super-slippage coating suitable for photo-thermal deicing and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Pre-treatment of the substrate: the substrate of the sample is a sailboat brand glass slide, which is sprayed immediately after wiping with absolute ethanol;

[0033] Step 1. Prepare component A:

[0034] Add 5g of DY-E44 type epoxy resin and 50ml of absolute ethanol to a 200ml beaker, disperse for 40min at a speed of 1500r / min on a magnetic stirrer, then add 0.2g of monoglycidyl ether-capped polydimethylsiloxane , 0.28g of diglycidyl ether-capped polydimethylsiloxane and 0.2g of graphene / polydopamine powder were ultrasonically dispersed for 25 minutes to prepare coating component A;

[0035] Among them, the preparation method of graphene / polydopamine powder is: add 0.2g graphene powder and 100mL Tris buffer to a 250mL beaker for ultrasonic dispersion for 30min, then add 0.2g dopamine hydrochloride and stir for 18-24h, centrifuge and purify at 60°C Graphene / polydopamine powder can be obtained by drying under the oven for 4 hours;

[0036] Step 2. Preparation of compon...

Embodiment 2

[0042] Adopt the mode as described in embodiment 1, substrate is processed, the preparation of B component in step 2 and the preparation of graphene / polydopamine powder in step 3;

[0043] Step 1. Prepare component A:

[0044] Add 5.8g of DY-E44 type epoxy resin and 50ml of absolute ethanol to a 200ml beaker, disperse on a magnetic stirrer at a speed of 1500r / min for 45min, then add 0.2g of monoglycidyl ether-capped polydimethylsiloxane Alkane, 0.28g diglycidyl ether-terminated polydimethylsiloxane, 0.1g amino-terminated polydimethylsiloxane and 0.2g graphene / polydopamine powder, ultrasonically dispersed for 20min to prepare coating group A Minute;

[0045] Step 3, prepare polypyrrole / graphene / epoxy resin super-slip coating:

[0046] First, mix component A and component B according to the mass ratio of 1:0.8, and disperse the mixture on a magnetic stirrer at a speed of 2000r / min for 55min; Spraying; finally, the coatings sprayed with components A and B are cured at 120°C fo...

Embodiment 3

[0048] Adopt the mode described in embodiment 1, substrate is processed, the preparation of A component and the preparation of graphene / polydopamine powder in step 1, and the preparation of polypyrrole / polydopamine powder in step 2;

[0049] Step 2. Preparation of component B:

[0050] Add 4g of DY-E6012 type curing agent and 50ml of absolute ethanol into a 100ml beaker, disperse on a magnetic stirrer at a speed of 1200r / min for 40min, then add 0.2g of polypyrrole / polydopamine powder, and ultrasonically disperse for 30min to obtain a coating Layer B component;

[0051] Step 3, prepare polypyrrole / graphene / epoxy resin super-slip coating:

[0052] First, mix component A and component B according to the mass ratio of 1:1, and disperse the mixture on a magnetic stirrer at a speed of 2000r / min for 60 minutes; then put the mixture into the spraying equipment and spray at a pressure of 1800Psi ; Finally, the coating sprayed with component A and component B is cured at 120°C for two...

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Abstract

The invention discloses a polypyrrole / graphene / epoxy resin super-slippage coating applicable to photo-thermal deicing and a preparation method thereof. The coating is prepared by spraying a mixture of a component A and a component B according to a mass ratio of 1: (0.6-1) and curing, wherein the component A is prepared by mixing 88%-90% by mass of epoxy resin, 2%-4% by mass of monoglycidyl ether terminated polydimethylsiloxane, 4%-6% by mass of diglycidyl ether terminated polydimethylsiloxane and 2%-4% by mass of graphene / polydopamine powder according to the following sequence: firstly, adding the epoxy resin into absolute ethyl alcohol and uniformly stirring; secondly, adding the rest substances, and performing ultrasonic dispersion to obtain a component A; and the component B is prepared by mixing 94-96% by mass of a curing agent and 4-6% by mass of polypyrrole / polydopamine powder according to the following sequence: firstly, adding the curing agent into absolute ethyl alcohol, and performing uniform stirring; secondly, adding the polypyrrole / polydopamine powder, and carrying out ultrasonic dispersion to obtain the component B. And the photo-thermal deicing performance of the epoxy resin-based super-slippage coating is improved.

Description

technical field [0001] The invention belongs to the technical field of preparation of composite coating materials, and in particular relates to a polypyrrole / graphene / epoxy resin super-slip coating suitable for photothermal deicing and a preparation method thereof. Background technique [0002] Surface wettability is one of the important surface properties of solid materials. Due to its smooth and flat surface and low surface energy, super-slip coatings exhibit unique and excellent surface lyophobic, self-repairing, self-cleaning, and anti-adhesion functions. . Therefore, super-slip coatings show broad application prospects in the fields of anti-corrosion, anti-icing, anti-fog, antibacterial and anti-fouling, microfluidic manipulation, oil-water separation, and anti-frost. [0003] At present, the method of preparing super-slip coating is mainly to prepare a porous or micro-nano-rough structure coating and then inject a "lubricating fluid" with low surface energy to constru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/02C09D179/04C09D183/06C09D7/61C09D7/65
CPCC09D163/00C09D7/61C09D7/65C08L79/04C08L83/06C08K3/042
Inventor 杨进张一凡宋浩杰贾晓华李永王思哲
Owner 苏州邦得纳米涂层科技有限公司
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