Preparation method of copolymer grafted carbon nano-tube super-hydrophobic material

A carbon nanotube and multi-wall carbon nanotube technology, applied in the field of surface chemistry, can solve the problems of complex preparation method, poor superhydrophobic stability and high preparation cost, and achieve the effects of easy availability of raw materials, stable superhydrophobicity and low cost

Inactive Publication Date: 2012-10-03
QILU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of these methods have the problems of high preparation cost, complicated preparation method and poor superhydrophobic stability.

Method used

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  • Preparation method of copolymer grafted carbon nano-tube super-hydrophobic material
  • Preparation method of copolymer grafted carbon nano-tube super-hydrophobic material

Examples

Experimental program
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Effect test

Embodiment 1

[0023] 1. Synthesis of α-Methylstyrene and Butyl Methacrylate Copolymer

[0024] 1 g AMS, 9 g BMA, and 30 g THF were successively added to a three-necked flask, 0.3 g AIBN was added at 70° C., nitrogen gas was introduced, and after 21 h of magnetic stirring, the reaction solution was mixed with methanol at a mass ratio of 3:1. Precipitate with distilled water, centrifuge; dissolve the precipitate with acetone, reprecipitate with methanol and distilled water, centrifuge, repeat 3 times, then vacuum dry and grind to obtain the copolymer of α-methylstyrene and butyl methacrylate;

[0025] 2. Grafting α-Methylstyrene and Butyl Methacrylate Copolymer on the Surface of Multi-walled Carbon Nanotubes

[0026] Disperse 1 g of the copolymer of α-methylstyrene and butyl methacrylate and 0.05 g of multi-walled carbon nanotubes into a mixed solution of 30 ml of tetrahydrofuran and 10 ml of N, N-dimethylformamide, and ultrasonically vibrate After 30 minutes, nitrogen gas was passed throu...

Embodiment 2

[0032] 1. Synthesis of α-Methylstyrene and Butyl Methacrylate Copolymer

[0033] Add 0.5 g AMS, 10 g BMA, and 35 g THF to a three-necked flask successively, add 0.1 g AIBN at 65 ° C, feed nitrogen, and magnetically stir for 21 h. Precipitate with distilled water, centrifuge; dissolve the precipitate with acetone, reprecipitate with methanol and distilled water, centrifuge, repeat 3 times, then vacuum dry and grind to obtain the copolymer of α-methylstyrene and butyl methacrylate;

[0034] 2. Grafting α-Methylstyrene and Butyl Methacrylate Copolymer on the Surface of Multi-walled Carbon Nanotubes

[0035] Disperse 1 g of the copolymer of α-methylstyrene and butyl methacrylate and 0.02 g of multi-walled carbon nanotubes into a mixed solution of 30 ml of tetrahydrofuran and 10 ml of N, N-dimethylformamide, and ultrasonically vibrate After 30 minutes, nitrogen gas was passed through at 90°C to stir the reaction for 24 hours, vacuum filtered with a polyvinylidene fluoride microp...

Embodiment 3

[0039] 1. Synthesis of α-Methylstyrene and Butyl Methacrylate Copolymer

[0040] 5 g AMS, 10 g BMA, and 50 g THF were successively added into a three-necked flask, 0.5 g AIBN was added at 70° C., nitrogen gas was introduced, and after 21 h of magnetic stirring, the reaction solution was mixed with methanol with a mass ratio of 3:1. Precipitate with distilled water, centrifuge; dissolve the precipitate with acetone, reprecipitate with methanol and distilled water, centrifuge, repeat 3 times, then vacuum dry and grind to obtain the copolymer of α-methylstyrene and butyl methacrylate;

[0041] 2. Grafting α-Methylstyrene and Butyl Methacrylate Copolymer on the Surface of Multi-walled Carbon Nanotubes

[0042]Disperse 1 g of the copolymer of α-methylstyrene and butyl methacrylate and 0.1 g of multi-walled carbon nanotubes into 45 ml of tetrahydrofuran, ultrasonically oscillate for 30 minutes, and then pass nitrogen gas at 90°C to stir the reaction for 24 Hours, vacuum filtratio...

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Abstract

The invention discloses a preparation method of a copolymer grafted carbon nano-tube super-hydrophobic surface. The method comprises the following steps: preparing a copolymer of alpha-vinyltoluene and butyl methacrylate by adopting a simple free radical polymerization method; grafting the copolymer to the surface of a multi-wall carbon nano-tube to obtain a alpha-vinyltoluene and butyl methacrylate copolymer grafted multi-wall carbon nano-tube; dispersing the alpha-vinyltoluene and butyl methacrylate copolymer grafted multi-wall carbon nano-tube into an organic solvent in an ultrasonic wave way to obtain a dispersing liquid; preparing resin paste by uisng resin, a promoting agent and an initiator; and coating the resin paste on the surface of a matrix of an inorganic or organic material, and coating the dispersing liquid to form a stable super-hydrophobic surface. The preparation method does not have special requirement on equipment, is low in cost, easy in implementation, and simple in process, has easily available raw materials, is environmental friendly, and can be used as a corrosion-resistance material, a pollution-prevention material, a self-cleaning material and the like.

Description

technical field [0001] The invention relates to an organic / inorganic nanocomposite material, in particular to a method for preparing an organic-inorganic nanocomposite superhydrophobic film, and belongs to the technical field of surface chemistry. Background technique [0002] Wettability is one of the important properties of solid surfaces, which is mainly determined by the surface chemical composition and microscopic geometric structure. A superhydrophobic surface generally refers to a surface whose contact angle with water is greater than 150° and the rolling angle is less than 10°. Generally speaking, there are two methods for preparing a superhydrophobic surface: one is to modify a low surface energy substance on a rough surface , and the other is to build a rough structure on the surface of the hydrophobic material. In the prior art, there are many methods for preparing a super-hydrophobic surface. Chinese Invention Patent Publication No. CN1613565A discloses a method...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08G83/00C08F212/12C08F220/18
Inventor 刘伟良赵利张丽东姚金水
Owner QILU UNIV OF TECH
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