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Preparation method of PVC-GONR composite material thin film

A composite material film and composite material technology, applied in the field of preparation of PVC-GONR composite material film, can solve the problem of small effective interface area and achieve the effect of improving physical properties

Inactive Publication Date: 2017-05-24
QINGDAO ZHIXIN BIOLOGICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, previous work mainly focused on the dispersion and surface modification of MWNTs, so the shortcoming of the small effective interface area has not been resolved.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] (1) A preparation method of PVC-GONR composite material film, the steps are as follows: add 50ml of vitriol oil and 0.1g of MWNT in a 150ml three-necked flask, stir for 2 hours until it appears to be a uniform black solution in appearance, in this solution Slowly add 0.1 g of KMnO 4 , Stir at room temperature for 1 hour, then heat up to 70°C for 1 hour, pour the reaction solution into 500ml deionized water, centrifuge, and wash with dilute hydrochloric acid solution and deionized water several times to obtain GONR.

[0014] (2) Ultrasonic disperse GONR in 5ml deionized water for 30 minutes, and dissolve 1g PVC in 10ml deionized water at the same time, stir until dissolved at 90°C, mix the two solutions, the content of GONR is 0.5 wt%, and then sonicate Obtain a uniformly mixed composite material solution in 30 minutes, then pour the uniformly mixed solution on a flat substrate, dry at 60°C until the quality is constant, and obtain a composite material film.

Embodiment 2

[0016] (1) A preparation method of PVC-GONR composite material film, the steps are as follows: add 50ml of vitriol oil and 0.1g of MWNT in a 150ml three-necked flask, stir for 2 hours until it appears to be a uniform black solution in appearance, in this solution Slowly add 0.3g of KMnO 4 , Stir at room temperature for 1 hour, then heat up to 70°C for 1 hour, pour the reaction solution into 500ml deionized water, centrifuge, and wash with dilute hydrochloric acid solution and deionized water several times to obtain GONR.

[0017] (2) Ultrasonic disperse graphene oxide nanobelts in 5ml deionized water for 30 minutes, and at the same time dissolve 1g PVC in 10ml deionized water, stir at 90°C until dissolved, mix the two solutions, the content of graphene oxide nanobelts was 2 wt%, and then ultrasonicated for 30 minutes to obtain a uniformly mixed composite material solution, and then the uniformly mixed solution was poured on a flat substrate, and dried at 60°C until the mass wa...

Embodiment 3

[0019] (1) A preparation method of PVC-graphene oxide nanoribbon composite film, the steps are as follows: add 50ml of concentrated sulfuric acid and 0.1g of MWNT in a 150ml three-necked flask, stir for 2 hours until it appears to be a uniform black solution in appearance, Slowly add 0.5 g of KMnO to this solution 4 , Stir at room temperature for 1 hour, then heat up to 70°C for 1 hour, pour the reaction solution into 500ml deionized water, centrifuge, and wash with dilute hydrochloric acid solution and deionized water several times to obtain GONR.

[0020] (2) Ultrasonic disperse GONR in 5ml deionized water for 30 minutes, and dissolve 1g PVC in 10ml deionized water at the same time, stir until dissolved at 90°C, mix the two solutions, the content of GONR is 1.5 wt%, and then sonicate Obtain a uniformly mixed composite material solution in 30 minutes, then pour the uniformly mixed solution on a flat substrate, dry at 60°C until the quality is constant, and obtain a composite ...

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PUM

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Abstract

The invention relates to a preparation method of a PVC-GONR composite material thin film. The preparation method comprises the following steps: (1) adding 50 ml of concentrated sulfuric acid and 0.1 g of MWNT in 150 ml of a three-mouth flask, stirring for 2 hours till the appearance looks like a uniform black solution, slowing adding 0.1-0.5 g of KMnO4 in the solution, firstly stirring for 1 hour at a room temperature, then increasing the temperature to 70 DEG C for reaction for 1 hour, pouring reaction liquid into 500 ml of deionized water, performing centrifugal precipitation and washing with a dilute hydrochloric acid solution and deionized water for many times to obtain GONR; (2) performing ultrasonic dispersion on the GONR in 5 ml of deionized water for 30 minutes, simultaneously dissolving 1 g of PVC in 10 ml of deionized water, stirring at a temperature of 90 DEG C till dissolution and mixing two solutions, wherein the content of the GONR is 0.5-2 percent by weight; performing ultrasound for 30 minute to obtain a uniformly-mixed composite material solution, pouring the uniformly-mixed composite material solution on a flat substrate, drying at a temperature of 60 DEG C till the quality is constant and obtaining the composite material thin film. The physical properties of the composite material thin film provided by the invention are greatly improved.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to a preparation method of a PVC-GONR composite film. Background technique [0002] Carbon nanotubes (CNTs) can be seen as cylinders that are curled and seamlessly connected by graphene. According to the number of curled graphene layers, CNTs can be divided into single-walled carbon nanotubes (SWNTs) and multi-walled carbon nanotubes (SWNTs). There are two types of carbon nanotubes (MWNT). Due to their excellent mechanical properties and excellent conductivity, CNTs have aroused widespread interest in the scientific and industrial communities since their discovery. In particular, its extremely high strength and hardness make it an ideal one-dimensional filler for reinforcement of polymer composites. Generally, SWNTs are considered to be more suitable for the reinforcement of polymers because of their smaller size, higher specific surface area, and better crystal stru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08K9/02C08K9/00C08K7/24C08J5/18
CPCC08K9/02C08J5/18C08J2327/06C08K7/24C08K9/00C08K2201/011C08L2203/16
Inventor 孙国志
Owner QINGDAO ZHIXIN BIOLOGICAL TECH CO LTD
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