PET (polyethylene terephthalate)-based electromagnetic shielding composite and preparation method thereof

A technology of polyethylene terephthalate and composite materials is applied in the field of preparation of polymer-based nanocomposite materials to achieve the effect of excellent electromagnetic shielding performance

Inactive Publication Date: 2013-08-14
JIAXING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • PET (polyethylene terephthalate)-based electromagnetic shielding composite and preparation method thereof
  • PET (polyethylene terephthalate)-based electromagnetic shielding composite and preparation method thereof

Examples

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Embodiment 1

[0020] 1) Reductive exfoliation of graphite oxide into graphene at 1000°C for 0.5 min. The obtained graphene has a thickness of 0.35-10 nm and a diameter of 5-10 μm.

[0021] 2) In 10mL0.1mM FeCl 3 Add 0.15M PVP to the ethylene glycol solution, stir until the PVP is completely dissolved, then add 10mL 0.1M AgNO dropwise 3 solution, stirred for 10 minutes. Then the mixed solution was transferred to a hydrothermal synthesis reactor and reacted at 160° C. for 2 hours. Natural cooling, that is, silver nanowires with a diameter of 40-50 nm and a length of 20-50 μm are obtained.

[0022] 3) take by weighing step 1) 0.05 gram of graphene gained, take by weighing 0.05 gram of silver nanowire of step 2) gained, take by weighing PET100 gram, join in the twin-screw extruder and mix together, the work of twin-screw extruder The temperature is 280 degrees Celsius, and the rotation speed is 100 rpm. Then, after extruding and granulating, the materials are re-added to the twin-screw ext...

Embodiment 2

[0025] 1) Reductive exfoliation of graphite oxide into graphene at 600°C for 3 minutes. The obtained graphene has a thickness of 5-20 nm and a diameter of 10-20 μm.

[0026] 2) In 200mL0.1mM FeCl 3 Add 0.15M PVP to the ethylene glycol solution, stir until the PVP is completely dissolved, then add 200mL 0.1M AgNO dropwise 3 solution, stirred for 20 minutes. Then the mixed solution was transferred to a hydrothermal synthesis reactor and reacted at 160° C. for 3 hours. Cool naturally to obtain silver nanowires with a diameter of 80-100 nm and a length of 10-30 μm.

[0027] 3) take by weighing step 1) 2 grams of graphene gained, take by weighing step 2) 2 grams of silver nanowires gained, take by weighing PET100 grams, join in the twin-screw extruder and mix together, the work of twin-screw extruder The temperature is 300 degrees Celsius, and the rotation speed is 300 rpm. Then, after extruding and granulating, the materials are re-added to the twin-screw extruder for mixing....

Embodiment 3

[0030] 1) Reductive exfoliation of graphite oxide into graphene at 800°C for 2 minutes. The obtained graphene has a thickness of 1-10 nm and a diameter of 5-15 μm.

[0031] 2) In 400mL0.1mM FeCl 3 Add 0.15M PVP to the ethylene glycol solution, stir until the PVP is completely dissolved, then add 400mL 0.1M AgNO dropwise 3 solution, stirred for 20 minutes. Then the mixed solution was transferred to a hydrothermal synthesis reactor and reacted at 160° C. for 4 hours. Cool naturally to obtain silver nanowires with a diameter of 80-100 nm and a length of 10-30 μm.

[0032] 3) take by weighing step 1) 3 grams of graphene gained, take by weighing step 2) 4 grams of silver nanowires gained, take by weighing PET100 grams, join in the twin-screw extruder and mix together, the work of the twin-screw extruder The temperature is 300 degrees Celsius, and the rotation speed is 300 rpm. Then, after extruding and granulating, the materials are re-added to the twin-screw extruder for mixi...

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Abstract

The invention relates to a PET (polyethylene terephthalate)-based electromagnetic shielding composite and a preparation method thereof. The composite comprises a PET matrix material and nanometer inorganic filler uniformly dispersed in the PET matrix material. The composite is characterized in that the composite nanometer inorganic filler consists of graphene which is 0.35-20nm in thickness and 1-20mu m in diameter and silver nanowires which are 40-500nm in diameter and 5-50mu m in length. The PET-based electromagnetic shielding composite has favorable electromagnetic shielding performance, has excellent electromagnetic shielding performance and stable performance compared with the common anti-radiation fabric and can substitute for the traditional anti-radiation fabric. The PET-based electromagnetic shielding composite is suitable for manufacturing of anti-radiation clothes.

Description

technical field [0001] The invention belongs to the field of preparation of polymer-based nanocomposite materials, in particular to a graphene / silver nanowire / PET nanocomposite material and a preparation method thereof. Background technique [0002] Along with the rapid development of the electronics industry, electronic products such as various household appliances, office computers, instruments and equipment have been widely popularized and applied. However, while their work brings great convenience to people, it also releases a large amount of electromagnetic radiation, which endangers people's health. Studies have shown that if people are exposed to strong electromagnetic field radiation for a long time, it will lead to abnormal cell state and cell function, which will lead to neurasthenia, nervous dysfunction, endocrine disorders, and even induce cancer. Therefore, the protection and control of electromagnetic pollution has been increasingly concerned and valued by peo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08K3/04C08K7/06C08K3/08
Inventor 薛元沈小军党蕊琼颜志勇敖利民邓丹
Owner JIAXING UNIV
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