Polystyrene abrasion-resistant integrated ultra-hydrophobic coating and preparation method thereof

A technology of polystyrene and polystyrene emulsion, applied in coatings, anti-corrosion coatings, etc., can solve the problems of high polystyrene super double coating process requirements, difficulty in integrated preparation, poor wear resistance, etc. Achieve strong binding force, high hardness and good wear resistance

Active Publication Date: 2017-05-31
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In order to solve technical problems such as high polystyrene super double coating process requirements, poor wear resistance, low bonding ability, difficult to realize integrated preparation and irreparable te

Method used

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  • Polystyrene abrasion-resistant integrated ultra-hydrophobic coating and preparation method thereof
  • Polystyrene abrasion-resistant integrated ultra-hydrophobic coating and preparation method thereof
  • Polystyrene abrasion-resistant integrated ultra-hydrophobic coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Embodiment 1: Polystyrene wear-resistant integrated super-hydrophobic coating, the steps are as follows:

[0052] 1. Stir the polystyrene emulsion with magnetic force, the heating temperature is 120°C, the stirring rate is 1000r / min, the stirring time is 0.5h, and then stand still for 5h to fully open the molecular chain of the emulsion;

[0053] 2. Add 30% (mass percent) n-butanol and 45% (mass percent) N,N-dimethylacetamide to the polystyrene emulsion for modification to obtain a polystyrene diluted emulsion, adding 15% by mass PTFE (solid content 15%, mass percentage), stirring, mixing, stirring rate 800r / min, stirring time 1.5h, to obtain mixture 1; wherein the percentage is the mass percentage of polystyrene dilute emulsion;

[0054] 3. Mix the mixture 1 obtained in step 2 with dimethyl sulfone in a mass ratio of 1:2, add methanol to dissolve into a jelly, and disperse it ultrasonically for 15 minutes;

[0055] 4. Add nano-silica particles to the colloid prepared ...

Embodiment 2

[0063] Embodiment 2: Polystyrene wear-resistant integrated superhydrophobic coating, the steps are as follows:

[0064] 1) Stir the polystyrene emulsion with magnetic force at a heating temperature of 60°C and a speed of 1400r / min, stir for 2 hours, and then let it stand for 5 hours to fully open the molecular chain of the emulsion;

[0065] 2) Add 30% (mass percent) n-butanol and 65% (weight percent) N,N-dimethylacetamide to the polystyrene emulsion for modification to obtain a polystyrene diluted emulsion, adding 15% by mass polytetrafluoroethylene (solid content 15%, mass percent), stirring, mixing, stirring rate 1400r / min, stirring time 4h, to obtain mixture 1; wherein the percentage is the mass percentage of polystyrene dilute emulsion;

[0066] 3) Mix the mixture 1 obtained in step 2 with dimethyl sulfone in a mass ratio of 1:4, add methanol to dissolve into a jelly, and disperse ultrasonically for 35 minutes;

[0067] 4) adding nano-silica particles to the colloid prep...

Embodiment 3

[0073] Embodiment 3: Polystyrene wear-resistant integrated superhydrophobic coating, the steps are as follows:

[0074] 1) Magnetically stir the polystyrene emulsion at a heating temperature of 100°C and a speed of 1200r / min, stir for 1.2 hours, and then let it stand for 5 hours to fully open the molecular chain of the emulsion;

[0075] 2) Add 30% (mass percent) n-butanol and 55% (weight percent) N,N-dimethylacetamide to the polystyrene emulsion for modification to obtain a polystyrene diluted emulsion, and then add 20% by mass polytetrafluoroethylene (solid content 15%, mass percent), stirring, mixing, stirring rate 1000r / min, stirring time 3h, to obtain mixture 1; wherein the percentage is all accounted for the mass percentage of polystyrene dilute emulsion;

[0076] 3) Mix the mixture 1 obtained in step 2 with dimethyl sulfone in a ratio of 1:3, add methanol to dissolve into a jelly, and disperse ultrasonically for 25 minutes;

[0077] 4) adding the nano-silica particles ...

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Abstract

The invention discloses a polystyrene abrasion-resistant integrated ultra-hydrophobic coating and a preparation method thereof. Polystyrene is modified, nano-silica particles modified by a crosslinking agent (polytetrafluoroethylene), a modifying agent and KH792 are added into the modified polystyrene, and the materials are mixed to form a superamphiphobic coating having high hardness, good wear resistance, strong binding force and a micron polystyrene-nano-silica structure. The polystyrene in an emulsion state and silica in a gel state are block-crosslinked so that the nano-silica and micron polystyrene are re-constructed and thus coating wear resistance is significantly improved. Through the bonding reaction between polystyrene and silica, each monolayer of the micron polystyrene-nano-silica structure has a good binding force to other layers. Each structure has superamphiphobic performances, greatly improves coating wear resistance, can be integratedly prepared and subverts and breaks through polystyrene wear resistance in theory.

Description

technical field [0001] The invention relates to the field of superamphiphobic composite coatings, in particular to a polystyrene wear-resistant integrated superhydrophobic coating and a preparation method thereof. Background technique [0002] In the early 1990s, German biologists studied the leaves of hundreds of plants and believed that this self-cleaning feature is the presence of micron papillae on the rough surface and hydrophobic wax on the surface. caused. Scanning electron micrographs of lotus leaf surface microscopic morphology Through scanning electron microscope analysis on the lotus leaf surface, it can be seen that there are many papillae-like protrusions on the lotus leaf surface, such as figure 1 (a) The papillae are covered by many nanoscale waxy crystals, such as figure 1 (b). Between these tiny bumps, a lot of air is stored. In this way, when water drops on the lotus leaf, due to the joint support of the air layer, papillae and waxy layer, the water dro...

Claims

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Application Information

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IPC IPC(8): C09D125/06C09D7/00C09D5/08C09D7/12
CPCC08K2201/011C08L2312/00C09D5/08C09D7/20C09D7/62C09D7/65C09D125/06C08L27/18C08K13/06C08K9/06C08K3/36
Inventor 郭凯吴亚平李辛庚王晓明闫风洁
Owner ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
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