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Graphene/nylon 6 composite film with high ductility and ultraviolet-proof property and preparation method of graphene/nylon 6 composite film

A technology of graphene and ductility, which is applied in the field of graphene/nylon 6 composite film and preparation, can solve the problems of reducing the mechanical strength and ductility of nylon film, unfavorable application, etc., and achieves large-scale production, high ductility, and improved compatibility effect

Active Publication Date: 2017-06-13
HANGZHOU GAOXI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the commonly used anti-ultraviolet additives include silica, zinc oxide, alumina, cerium oxide, etc., which can only meet the requirements of ultraviolet protection when added in a relatively high amount, and this will greatly reduce the mechanical strength and ductility of the nylon film itself. , which is not conducive to practical application

Method used

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  • Graphene/nylon 6 composite film with high ductility and ultraviolet-proof property and preparation method of graphene/nylon 6 composite film
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  • Graphene/nylon 6 composite film with high ductility and ultraviolet-proof property and preparation method of graphene/nylon 6 composite film

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Experimental program
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Effect test

Embodiment 1

[0021] Add 0.05 parts by mass of single-layer graphene with a carbon-to-oxygen ratio of 3.2 and a lateral size of 4 μm and 10 parts by mass of deionized water into 100 parts by mass of caprolactam melt, and stir and mix at a high speed (400 rpm) at 80 ° C to form Dispersion liquid; under the protection of nitrogen, the above dispersion liquid was heated to 250°C in a polycondensation reactor, reacted at 0.7Mpa for 3 hours, and then reacted under vacuum for 4 hours to obtain a polycondensate melt; Water-cooled granulation to obtain graphene / nylon 6 nanocomposites. The obtained graphene / nylon 6 nanocomposite material was added into an extruder together with 0.2 parts by mass of an antioxidant, and melt-cast to obtain a graphene / nylon 6 film with a film thickness of 100 μm. The obtained graphene / nylon 6 film was subjected to a tensile test and an anti-ultraviolet performance test according to national standards, and the experimental results are shown in Attached Table 1.

Embodiment 2

[0023] Add 0.1 parts by mass of single-layer graphene with a carbon-to-oxygen ratio of 3.2 and a lateral size of 4 μm and 10 parts by mass of deionized water into 100 parts by mass of caprolactam melt, and stir and mix at a high speed (400 rpm) at 80 ° C to form Dispersion liquid; under the protection of nitrogen, the above dispersion liquid was heated to 250°C in a polycondensation reactor, reacted at 0.7Mpa for 3 hours, and then reacted under vacuum for 4 hours to obtain a polycondensate melt; Water-cooled granulation to obtain graphene / nylon 6 nanocomposites. The obtained graphene / nylon 6 nanocomposite material was added into an extruder together with 0.2 parts by mass of an antioxidant, and melt-cast to obtain a graphene / nylon 6 film with a film thickness of 200 μm. The resulting graphene / nylon 6 film is a light black film, as figure 1 As shown, its UV absorption curve is shown as image 3 shown. The obtained graphene / nylon 6 film was subjected to a tensile test and an ...

Embodiment 3

[0025] Add 0.3 parts by mass of single-layer graphene with a carbon-to-oxygen ratio of 3.2 and a lateral size of 4 μm and 10 parts by mass of deionized water into 100 parts by mass of caprolactam melt, and stir and mix at a high speed (420 rpm) at 80 ° C to form Dispersion liquid; under the protection of nitrogen, the above dispersion liquid was heated to 265°C in a polycondensation reactor, reacted at 0.6Mpa for 3 hours, and then reacted under vacuum for 4 hours to obtain a polycondensate melt; Water-cooled granulation to obtain graphene / nylon 6 nanocomposites. The obtained graphene / nylon 6 nanocomposite material was added into an extruder together with 0.1 parts by mass of an antioxidant, and melt-cast to obtain a graphene / nylon 6 film with a film thickness of 122 μm. The obtained graphene / nylon 6 film was subjected to a tensile test and an anti-ultraviolet performance test according to national standards, and the experimental results are shown in Attached Table 1.

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Abstract

The invention discloses a graphene / nylon 6 composite film with high ductility and ultraviolet-proof property and a preparation method of the graphene / nylon 6 composite film, belongs to the field of a barrier film material and in particular relates to the graphene / nylon 6 composite film. The graphene / nylon 6 composite film is prepared by fusing a graphene / nylon 6 nano composite material and carrying out curtain coating to form the film; the graphene / nylon 6 nano composite material is obtained by polymerizing modified graphene and caprolactam. According to the graphene / nylon 6 composite film, less graphene oxide (with the content of 0.1 percent to 0.5 percent) is added into the product, so that ultraviolet rays can be effectively absorbed and the requirements of ultraviolet-proof products are met; the composite film also has high ductility. The preparation method is simple, convenient and feasible and is suitable for large-scale production; the content of the added graphene is low and the cost performance is high; the graphene / nylon 6 composite film has the excellent ultraviolet-proof property and can be used for fields including building films, automobile films, packaging materials and the like.

Description

technical field [0001] The invention relates to the field of barrier film materials, in particular to a graphene / nylon 6 composite film with high ductility and UV resistance and a preparation method. Background technique [0002] Ultraviolet light refers to electromagnetic waves with a wavelength between 10-400 nanometers, which can kill bacteria and promote the synthesis of vitamin D in the human body. However, excessive ultraviolet light irradiation can damage the skin of the human body and cause cancer, and it is directly irradiated on the eyes Can cause eye damage. In addition, the irradiation of ultraviolet light on the surface of polymer materials will lead to photodegradation, which will cause the material to lose luster, discoloration, embrittlement and cracks, greatly reducing the strength and service life of the material, especially the polymer-based structure. Materials without effective UV protection are at risk of sudden failure. In recent years, due to the gr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08G69/16C08K9/00C08K3/04
CPCC08G69/16C08J5/18C08J2377/02C08K3/04C08K9/00C08K2201/011C08L2201/08C08L2203/16C08L77/02
Inventor 高超韩燚陈琛杨清刘威李友良陈国贵
Owner HANGZHOU GAOXI TECH CO LTD
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