Polymers containing aligned magnetic graphene oxide sheets and methods for their preparation

A technology of orientation arrangement and oxide stone, applied in the polymer field of magnetic graphene oxide sheets, can solve the problems of inability to achieve barrier effect, lack of planar orientation structure, etc., and achieve high strength, tight surface structure, and improved mechanical strength.

Active Publication Date: 2016-08-24
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] However, the current technology, the random dispersion of graphene nanosheets in the polymer, lacks a good planar orientation structure, and still cannot achieve a good barrier effect

Method used

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  • Polymers containing aligned magnetic graphene oxide sheets and methods for their preparation
  • Polymers containing aligned magnetic graphene oxide sheets and methods for their preparation
  • Polymers containing aligned magnetic graphene oxide sheets and methods for their preparation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075] Weigh 10gP 2 o 5 , 10gK 2 S 2 o 8 Mix it in a 250ml beaker, put it into a magnet, and add 150g of 98% H with stirring in an ice bath. 2 SO 4 React until the system is clear, add 400mg of expanded graphite, and stir at 90°C for 4.5h. Cool the system in an ice bath, add 2000g of deionized water while stirring, filter with sand core funnel, wash the solid with deionized water until it is neutral, and dry it in a vacuum oven at 50°C. The amount of the above product is about 500mg, and add it to a three-necked flask In, add 184g weight concentration of 98% H 2 SO 4 To react, add 10g of potassium permanganate under ice bath stirring, react at 50°C for 2h, add 1000g deionized water under ice bath, transfer to a large beaker, add H2O dropwise under stirring 2 o 2 Until the system turns yellow, centrifuge, adjust the final pH value to 7, and dry to obtain graphene oxide;

[0076] Then 0.15g of graphene oxide and 0.05g of montmorillonite with a sheet diameter of 1-20nm ...

Embodiment 2

[0094] Weigh 10gP 2 o 5 , 10gK 2 S 2 o 8 Mix it in a 250ml beaker, put it into a magnet, and add 150g of 98% H with stirring in an ice bath. 2 SO 4 React until the system is clear (if not clear, heat it). Add 400mg of graphite (expanded graphite) and stir at 90°C for 4.5h. Cool the system in an ice bath, add 2000 g of deionized water while stirring, dilute to a certain extent, filter with sand core funnel, wash the solid with deionized water until the filtrate is nearly neutral, and dry in a vacuum oven at 50°C. The amount of above-mentioned product is about 500mg, adds in the there-necked flask, adds 184g weight concentration and is 98% H 2 SO 4 Reaction, slowly add 10g potassium permanganate (K 2 MnO 4 ), reacted at 50°C for 2h. Pour 1000g deionized water into the ice bath, transfer to a large beaker, add H2 dropwise under stirring 2 o 2 Until the system turns yellow, centrifuge, adjust the final pH value to 7, and dry to obtain graphene oxide.

[0095] Then di...

Embodiment 3

[0111] Weigh 10gP 2 o 5 , 10gK 2 S 2 o 8 Mix it in a 250ml beaker, put it into a magnet, and add 150g of 98% H with stirring in an ice bath. 2 SO 4React until the system is clear, add 400mg of expanded graphite, and stir at 90°C for 4.5h. Cool the system in an ice bath, add 2000g of deionized water while stirring, filter with sand core funnel, wash the solid with deionized water until it is neutral, and dry it in a vacuum oven at 50°C. The amount of the above product is about 500mg, and add it to a three-necked flask In, add 184g weight concentration of 98% H 2 SO 4 To react, add 10g of potassium permanganate under ice bath stirring, react at 50°C for 2h, add 1000g deionized water under ice bath, transfer to a large beaker, add H2O dropwise under stirring 2 o 2 Until the system turns yellow, centrifuge, adjust the final pH value to 7, and dry to obtain graphene oxide;

[0112] Then disperse 0.45g of graphene oxide and 0.2g of montmorillonite with a sheet diameter of ...

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Abstract

The invention discloses a polymer containing oriented-arrangement magnetic graphene oxide sheets and a preparation method thereof. The invention is characterized in that the polymer containing oriented-arrangement magnetic graphene oxide sheets is composed of a polymer and oriented-arrangement graft magnetically-functionalized graphene oxide sheets in the polymer. The polymer is applicable to many fields, such as packaging film preparation, various bottle containers / can preparation and the like. The polymer greatly enhances the barrier property for gas, liquid and the like, solves the problem of poor barrier property of the polymer film or container in the prior art, has the high strength of the graphene oxide, can obtain high width / thickness ratio, high specific area and compact surface structure, and has the magnetism of nano Fe3O4 particles, thereby implementing functionalization.

Description

technical field [0001] The invention relates to a polymer containing aligned magnetic graphene oxide sheets and a preparation method thereof. Background technique [0002] With its excellent comprehensive performance, polymer composite materials have been more and more widely used in production and life as a substitute for glass, ceramics and even metal materials. Especially the various packaging applications of plastic products in life (such as: food packaging, pharmaceutical packaging) and the application of liquid and gas storage containers. However, the sealing performance and mechanical properties of general-purpose packaging materials and storage container materials are still difficult to meet the actual use requirements. The waste of resources due to factors such as poor packaging sealing and expensive alternative materials used is as high as 1 billion yuan per year. Therefore, improving the sealing performance and mechanical properties of packaging materials and sto...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08L67/02C08L67/04C08K9/04C08K9/02C08K3/04
CPCC08K3/04C08K9/02C08K9/04C08K2201/01C08L2201/14C08L2203/10C08L2203/16C08L23/06C08L67/02C08L67/04
Inventor 周超陈思浩楼建中陈志昌徐刚杨春宇朱同贺王继虎邢晨晨包一鸣
Owner SHANGHAI UNIV OF ENG SCI
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