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Method and device for preparing laser-induced graphene-coated conductive glass fiber net

A laser-induced, graphene technology, applied in non-metallic conductors, textiles and papermaking, fiber raw material processing, etc., can solve the problem of inability to kill viruses and bacteria, and no killing effect.

Pending Publication Date: 2021-02-23
CHONGQING INST OF EAST CHINA NORMAL UNIV +6
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the filter material of this type of glass fiber filter can even be applied to high cleanliness environments such as industrial clean rooms, chip workshops, operating rooms, high-end purification and high-end fresh air systems, the insulating properties of glass fibers cannot pass through The method of applying voltage uses large current to kill the attached and passing viruses and bacteria, so it has no killing effect

Method used

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  • Method and device for preparing laser-induced graphene-coated conductive glass fiber net
  • Method and device for preparing laser-induced graphene-coated conductive glass fiber net
  • Method and device for preparing laser-induced graphene-coated conductive glass fiber net

Examples

Experimental program
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Effect test

Embodiment 1

[0044] A flexible PI sheet (or film) and glass fiber paper are used as raw materials for preparing glass fiber paper including carbon precursor materials. Specifically, first cut the flexible PI sheet into the same size as the glass fiber paper, coat the flexible PI sheet with high-performance silicone pressure-sensitive adhesive, and respectively stick the flexible PI sheet on the upper and lower surfaces of the glass fiber paper, And under the condition of 180 ℃, the glass fiber paper coated with PI was prepared. For a schematic diagram of the preparation process, see figure 1 (a).

Embodiment 2

[0046] PI thermoplastic powder and glass fiber paper are used as raw materials for preparing glass fiber paper including carbon precursor materials. Specifically include:

[0047] (1) Preparation of carbon precursor material dispersion: use PI thermoplastic powder as a carbon-containing precursor material to prepare a PI thermoplastic solution, add a dispersant, and perform ultrasonic treatment to obtain a uniform PI carbon precursor material dispersion;

[0048] (2) Coating of glass fiber paper: the prepared PI carbon precursor material dispersion is uniformly coated on the surface of glass fiber paper by a spin coating method, and the coating thickness is 50-100 μm;

[0049] (3) Drying of glass fiber paper including carbon precursor material: place the glass fiber paper coated with PI carbon precursor material dispersion on a drying plate at 100°C for drying treatment to obtain single-sided coated PI Glass fiber paper of carbon precursor material;

[0050] Repeat the above...

Embodiment 3

[0052] Carbon-containing precursor materials such as PI, graphite, glucose, and glass fiber cotton are used as raw materials for preparing glass fiber paper including carbon precursor materials. Specifically include:

[0053] (1) Preparation of carbon precursor material dispersion: use various carbon-containing precursor materials including PI thermoplastic powder, graphite, glucose, etc. to prepare a solution, add a dispersant, and perform ultrasonic treatment to obtain a variety of uniform carbon-containing a dispersion of precursor material;

[0054] (2) Carbon-containing precursor material-glass fiber mixed pulp: fully soak the ultra-fine glass fiber cotton in the carbon precursor material dispersion, and break up the glass fiber cotton through a fiber dissociator to prepare a carbon-containing precursor material- Glass fiber pulp suspension;

[0055] (3) Preparation of glass fiber paper including carbon precursor material: the carbon precursor material-glass fiber mixed...

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Abstract

The invention discloses a method and a device for preparing a laser-induced graphene-coated conductive glass fiber net, and is mainly used for reducing and converting a carbon precursor into grapheneby using a laser-induced graphene coating technology to prepare the laser-induced graphene-coated conductive glass fiber net. According to the laser-induced graphene-coated conductive glass fiber netprepared by the invention, the adsorption performance of the glass fiber net can be improved, and the excellent conductive performance of the conductive glass fiber net is utilized, so that viruses and bacteria attached to and passing through the glass fiber net can be efficiently and quickly killed by applying voltage to two sides of the glass fiber net, and the effects of sterilization and disinfection are achieved. In addition, the prepared conductive glass fiber net can be widely applied to the aspects of heavy metal adsorption, sewage treatment, water quality purification, electrochemicaldeposition, soil remediation, seawater desalination, precious metal extraction, garbage penetrating fluid treatment and the like, and has wide application prospects in the fields of sanitation, epidemic prevention, environment, resources and the like.

Description

technical field [0001] The invention relates to a preparation method and device of a conductive glass fiber net coated with graphene induced by laser. Background technique [0002] How to effectively control the spread and spread of viruses and bacteria in an environment with high concentration of people and poor air mobility is crucial to the prevention and control of any infectious disease, and it can also effectively improve the living and working environment. comfort and health. [0003] Usually, in public places with poor air flow such as office buildings, cinemas, shopping malls, etc., it is easy to spread viruses and bacteria, and even when the air conditioner or ventilation system is turned on because it does not have the killing effect on viruses and bacteria, it is even worse. It is easy to speed up the spread of viruses and bacteria throughout the region and expand the scope of spread. Air purification and filters use glass fiber filter as the filter material, w...

Claims

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Application Information

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IPC IPC(8): D21J3/00D21H19/14D21H13/26D21H17/67
CPCD21J3/00D21H19/14D21H13/26D21H17/67C03C25/12C03C25/44H01B1/06C03C14/00C03C2214/17
Inventor 曾和平杨川胡梦云
Owner CHONGQING INST OF EAST CHINA NORMAL UNIV
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