Graphene oxide composite film material, and preparation method and application thereof

A graphene composite, thin film material technology, applied in chemical instruments and methods, synthetic resin layered products, substructures, etc., can solve the problems of poor adhesion, high barrier layer materials, etc., to reduce the number of layers, high Barrier performance, cost reduction effect

Active Publication Date: 2018-01-26
SHENZHEN BEAUTY STAR +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a graphene oxide high-barrier nanocomposite material and its preparation

Method used

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  • Graphene oxide composite film material, and preparation method and application thereof

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Experimental program
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Example Embodiment

[0037] Example 1

[0038] Melt blend 45g of maleic anhydride grafted polypropylene (MAPP) and 5g of graphene oxide (MLGO) in an internal mixer to obtain a composite material MAPP / 10%MLGO with uniformly dispersed graphene oxide at a blending temperature of 120 ℃~140℃, rotation speed is 50 revolutions / min, blending time is 10-15min, granulate after uniform blending;

[0039] 4g of the prepared composite material MAPP / 10%MLGO was smelted in an open mill to form a thin film of 100μm or less, folded in the same direction and then repeatedly smelted, repeated about 5 times, and the smelting temperature was 148°C. Oriented graphene oxide composite film material with a thickness of about 40μm;

[0040] The four films are stacked on top of each other, heated to 120°C in a plate vulcanizer, 10 MPa is added, and maintained for 2 minutes. After cooling, a MAPP / 10% MLGO sheet of about 160 μm is obtained.

Example Embodiment

[0041] Example 2

[0042] Melt blend 45g of maleic anhydride grafted polypropylene (MAPP) and 5g of graphene oxide (MLGO) in an internal mixer to obtain a composite material MAPP / 10%MLGO with uniformly dispersed graphene oxide at a blending temperature of 120 ℃~140℃, rotation speed is 50 revolutions / min, blending time is 10-15min, granulate after uniform blending;

[0043] Take 4g of MAPP and smelt in an open mill to form a film below 100μm, and the smelting temperature is 150°C; use 4g of the prepared composite material MAPP / 10%MLGO in an open mill to form a film below 100μm. Take two 2g of MAPP film and 1g of MAPP / 10%MLGO film and stack them in a "sandwich" structure (MAPP film is the inner and outer layer, and MAPP / 10%MLGO film is the middle layer), and they are formed in an open mill Films below 100μm are folded in the same direction and then repeatedly smelted. Repeat about 10 times, and the smelting temperature is 148℃. The graphene oxide composite film material MAPP / 2%MLGO ...

Example Embodiment

[0045] Example 3

[0046] Melt blend 45g of maleic anhydride grafted polypropylene (MAPP) and 5g of graphene oxide (MLGO) in an internal mixer to obtain a composite material MAPP / 10%MLGO with uniformly dispersed graphene oxide at a blending temperature of 120 ℃~140℃, rotation speed is 50 revolutions / min, blending time is 10-15min, granulate after uniform blending;

[0047] 4g of the prepared composite material MAPP / 10%MLGO is smelted in an open mill to form a thin film of 100μm or less, and then folded in the same direction, the smelting is repeated for about 10 times, and the smelting temperature is 148℃. Oriented graphene oxide composite film material with a thickness of about 40μm;

[0048] The four films are stacked on top of each other, heated to 120°C in a plate vulcanizer, 10 MPa is added, and maintained for 2 minutes. After cooling, a MAPP / 10% MLGO sheet of about 160 μm is obtained.

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Abstract

The invention discloses a graphene oxide composite film material, and a preparation method and an application thereof. The method comprises the following steps: carrying out melt blending on maleic anhydride grafted polypropylene and graphene oxide to obtain a graphene oxide uniformly-dispersed composite material, adding the composite material into an open mill, and carrying out open milling and repeated open milling treatment to prepare the graphene oxide composite film material having fixed orientation. The graphene oxide composite film material has certain orientation, and can effectively prolong the path of small molecules passing through a polymer film, so a graphene oxide composite film has a high barrier performance; and the maleic anhydride grafted polypropylene used as a matrix material is used in the barrier layer of an oil tank, and has good cohesiveness with inner layer polypropylene and outer layer nylon, and is hopeful to substitute a bonding layer, so the layer number ofthe fuel tank is reduced, and the cost is reduced.

Description

technical field [0001] The invention relates to the field of graphene oxide modified materials, in particular to a graphene oxide high-barrier nanocomposite material and its preparation method and application. Background technique [0002] With the continuous improvement of environmental protection and safety requirements, the barrier performance requirements of fuel tanks in various countries are becoming more and more stringent. Since the pure high-density polyethylene single-layer fuel tank can no longer meet the current barrier performance standards, modified high-density polyethylene fuel tanks and multi-layer plastic fuel tanks have emerged. [0003] Existing multi-layer plastic fuel tank materials include: inner layer polypropylene, first adhesive layer, barrier layer ethylene-vinyl alcohol copolymer, second adhesive layer and outer layer of high-strength nylon 6 or Nylon 66. However, the ethylene-vinyl alcohol copolymer used as a barrier layer restricts the develop...

Claims

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Application Information

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IPC IPC(8): C08L51/06C08K3/04B29B7/56B32B27/30B32B27/06B32B27/18B60K15/03
Inventor 陈寿彭晓华罗艺青肖乃玉肖敏孟跃中
Owner SHENZHEN BEAUTY STAR
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