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Graphene/nylon 6 composite film with high ductility and UV resistance and preparation method thereof

A graphene and ductility technology, 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. Compatibility effect

Active Publication Date: 2019-06-21
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 UV resistance and preparation method thereof
  • Graphene/nylon 6 composite film with high ductility and UV resistance and preparation method thereof
  • Graphene/nylon 6 composite film with high ductility and UV resistance and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Add 0.05 parts by mass of a single-layer graphene with a lateral size of 4 μm with a carbon-oxygen ratio of 3.2 and 10 parts by mass of deionized water into 100 parts by mass of the 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 is heated in a polycondensation reactor to 250°C, reacted at 0.7Mpa for 3 hours, and then reacted under vacuum for 4 hours to obtain a polycondensate melt; then the polymer melt is subjected to The graphene / nylon 6 nanocomposite material is obtained by water cooling and granulation. The obtained graphene / nylon 6 nanocomposite material was added to an extruder together with 0.2 parts by mass of 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 tested for tensile test and anti-ultraviolet performance in accordance with national standards. The experimental re...

Embodiment 2

[0023] 0.1 parts by mass of a single-layer graphene with a lateral size of 4 μm with a carbon-oxygen ratio of 3.2 and 10 parts by mass of deionized water were added to 100 parts by mass of the caprolactam melt, and stirred and mixed at a high speed (400 rpm) at 80°C. Dispersion liquid; Under the protection of nitrogen, the above dispersion liquid is heated in a polycondensation reactor to 250°C, reacted at 0.7Mpa for 3 hours, and then reacted under vacuum for 4 hours to obtain a polycondensate melt; then the polymer melt is subjected to The graphene / nylon 6 nanocomposite material is obtained by water cooling and granulation. The obtained graphene / nylon 6 nanocomposite material is added to 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, such as figure 1 As shown, the UV absorption curve is as image 3 Shown. The obtained grap...

Embodiment 3

[0025] Add 0.3 parts by mass of a single-layer graphene with a lateral size of 4 μm with a carbon-oxygen ratio of 3.2 and 10 parts by mass of deionized water into 100 parts by mass of the caprolactam melt, and stir and mix them at a high speed (420 rpm) at 80°C. Dispersion; Under the protection of nitrogen, the above dispersion is 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; then the polymer melt is subjected to The graphene / nylon 6 nanocomposite material is obtained by water cooling and granulation. The obtained graphene / nylon 6 nanocomposite was added to the extruder together with 0.1 parts by mass of 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 tested for tensile test and anti-ultraviolet performance in accordance with national standards. The experimental results are shown in Table ...

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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 can cause damage to the human skin and cause cancer, and it can be directly irradiated to the eyes Can cause eye damage. In addition, ultraviolet light irradiated on the surface of polymer materials will cause the appearance of photodegradation, which will make the material lose luster, discoloration, embrittlement and cracking, greatly reducing the strength and service life of the material, especially the structure with polymer as the main body If the material is not effective for UV protection, there is a risk of sudden failure. In recent y...

Claims

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Application Information

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Patent Type & Authority Patents(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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