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A kind of preparation method of high light transmittance and high haze superhydrophobic coating

A super-hydrophobic coating and high light transmittance technology, which is applied in coatings, fireproof coatings, etc., can solve problems such as low haze, failure to reach a super-hydrophobic state, and difficulty in meeting high haze and high light transmittance at the same time. Achieve the effect of simple operation, simple preparation method and high light transmittance

Active Publication Date: 2022-02-11
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Then the porous membrane is perfused with modified silicone oil to prepare a hydrophobic star-shaped polymer porous membrane. Its light transmittance is close to that of glass, but its hydrophobicity is less than 150°, which does not reach the superhydrophobic state.
And it does not involve research on haze issues
Generally, materials with high light transmittance have low haze, and it is difficult to meet the effects of high haze and high light transmittance at the same time

Method used

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  • A kind of preparation method of high light transmittance and high haze superhydrophobic coating
  • A kind of preparation method of high light transmittance and high haze superhydrophobic coating
  • A kind of preparation method of high light transmittance and high haze superhydrophobic coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) Synthesis of star copolymer POSS-PS

[0021] 0.42g of octachloropropyl cage silsesquioxane, 0.04g of cuprous chloride and 0.2g of 2,2'-bipyridine, 9.2ml of styrene, 3ml of N,N-dimethylamide , added to a Schlenk bottle, and reacted at 110° C. for 24 hours by atom transfer radical polymerization (ATRP) to synthesize a star-shaped copolymer POSS-PS.

[0022] (2) Synthesis of room temperature curing silicone rubber

[0023] Mix 10 g of hydroxyl-terminated polysiloxane with 1 g evenly to obtain room temperature curing silicone rubber.

[0024] (3) prepare superhydrophobic coating;

[0025] Weigh 20mg of star copolymer POSS-PS star copolymer and dissolve in 1ml of dichloromethane (solubility is 20mg / ml), 10mg of room temperature curing silicone rubber is dissolved in 1ml of dichloromethane, ultrasonically until dissolved, the two solutions Mix evenly by volume 1:1 to obtain a mixed solution. The glass substrate is placed in a n-hexane coagulation bath, and then the ab...

Embodiment 2

[0044] (1) Synthesis of star copolymer POSS-PS

[0045] Mix 0.42g of octachloropropyl cage silsesquioxane, 0.04g of cuprous chloride and 0.2g of 2,2'-bipyridyl, 6.9ml of styrene, 2ml of N,N-dimethylamide , added to a Schlenk bottle, and reacted at 110° C. for 24 hours by atom transfer radical polymerization (ATRP) to synthesize a star copolymer POSS-PS.

[0046] (2) synthetic room temperature curing silicone rubber, with embodiment 1;

[0047] (3) Prepare super-hydrophobic coating, same as embodiment 1.

Embodiment 3

[0053] (1) Synthesis of star copolymer POSS-PS

[0054] Mix 0.42g of octachloropropyl cage silsesquioxane, 0.04g of cuprous chloride and 0.2g of 2,2'-bipyridine, 4.6ml of styrene, 1.6ml of N,N-dimethyl The amide was added into a Schlenk bottle, and reacted at 110° C. for 24 hours by atom transfer radical polymerization (ATRP) to synthesize a star-shaped copolymer POSS-PS.

[0055] (2) synthetic room temperature curing silicone rubber, with embodiment 1;

[0056] (3) Prepare super-hydrophobic coating, same as embodiment 1.

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Abstract

The invention relates to the field of superhydrophobic materials, in particular to a method for preparing a superhydrophobic coating with high light transmittance and high haze. The invention uses octachloropropyl cage silsesquioxane, styrene, 2-2 bipyridine and cuprous chloride as raw materials to synthesize star copolymer POSS-PS through atom transfer radical polymerization. The star copolymer POSS‑PS and the prepared room temperature curing silicone rubber were dissolved in a solvent by the non-solvent phase separation method (NIPS), and then mixed and poured into a non-solvent coagulation bath containing a matrix to obtain a superhydrophobic coating. The preparation method of the invention is simple and easy to operate, and the prepared coating has the characteristics of superhydrophobic, anti-adhesion, self-cleaning, high temperature resistance, high light transmittance, high haze and the like.

Description

technical field [0001] The invention relates to the field of superhydrophobic materials, in particular to a method for preparing a superhydrophobic coating with high light transmittance and high haze. Background technique [0002] Inspired by the fact that the cluster structure on the surface of the lotus leaf is good for locking air and preventing water from wetting the surface, superhydrophobic materials with good wettability with a contact angle exceeding 150° can be prepared. The preparation of superhydrophobic materials with unique microstructures is diverse, including etching, templates, femtosecond laser etching, photolithography, casting, in situ polymerization, electrochemical methods, self-assembly methods, electrospinning silk method and spin coating method, etc. It is widely used in self-cleaning, anti-corrosion, anti-icing, battery interference shielding, self-repairing, droplet manipulation, pipeline transportation, oil-water separation, biomedical and other f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D153/00C09D183/08C09D5/00C03C17/30
CPCC09D153/00C09D183/08C09D5/00C09D5/18C03C17/30C03C17/006C03C17/001C03C2217/40C03C2217/70C03C2218/111C08L2201/08C08L2201/10C08L83/08
Inventor 张洪文李欣顾钦天胡建杨丽吕程程买重阳姜彦
Owner CHANGZHOU UNIV
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