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Glass-fiber air filter paper containing carbon nanometer materials and preparing method thereof

A technology of air filter paper and carbon nanomaterials, applied in the field of materials, can solve the problems of carbon nanomaterials easy to fall off and powder, inconvenient production and use process, and harsh method conditions, so as to ensure antibacterial efficiency and durability, and not easy to fall off The effect of powder dropping and simple preparation method

Active Publication Date: 2016-08-17
KUNMING NATAI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, since the diameter of carbon nanomaterials is at the nanometer level, while the diameter of ordinary air filter materials is at the micron level, the size difference between the two is too large, and it is difficult to directly apply carbon nanomaterials to air filtration
At present, the method of combining the two is mainly solution deposition and vapor phase growth. The carbon nanomaterials are directly deposited on the air filter paper by the differential pressure filtration method, which is easy to operate. Leakage from these voids penetrates the paper, resulting in low retention of carbon nanomaterials on the paper, wasting raw materials
The force between carbon nanomaterials and glass fiber, the main raw material of air filter paper, is very small, and it is directly trapped on the paper by differential pressure filtration. Carbon nanomaterials are easy to fall off and powder, which is very inconvenient in the process of production and use, and may even become Secondary pollution source
The vapor phase growth method is to directly grow carbon nanomaterials on the surface of porous materials. The conditions of this method are harsh, and the area of ​​the prepared membrane is very small, which is not conducive to industrialization.

Method used

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  • Glass-fiber air filter paper containing carbon nanometer materials and preparing method thereof
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  • Glass-fiber air filter paper containing carbon nanometer materials and preparing method thereof

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Embodiment 1

[0033] A preparation method of glass fiber air filter paper containing carbon nanomaterials, comprising the following steps:

[0034] (1) Add carbon nanotubes with a diameter of 50 to 80 nm into an aqueous solution of sodium lauryl sulfate with a concentration of 0.5 g / L, and ultrasonically disperse them at 1000 W for 5 minutes, so that the mass fraction of carbon nanotubes is 0.2%. carbon nanomaterial dispersion;

[0035] (2) After mixing glass fibers with a diameter of 6.5 μm and glass wool fibers with a diameter of 0.1 to 2 μm at a mass ratio of 1:4, add water and acid to adjust the pH value to 3, and disperse at a speed of 2000 rpm for 10 minutes Then add the polyoxyethylene aqueous solution that is 1g / L the polyoxyethylene aqueous solution that is configured into by the polyoxyethylene that molecular weight is 6,000,000 with water, is configured into the glass fiber material dispersion that the mass fraction summation of glass fiber and glass wool fiber is 0.05%, wherein ...

Embodiment 2

[0039] A preparation method of glass fiber air filter paper containing carbon nanomaterials, comprising the following steps:

[0040] (1) Add carbon nanotubes with a diameter of 1 to 20 nm into an aqueous solution of sodium alkane sulfonate with a concentration of 1 g / L, and ultrasonically disperse them at 1000 W for 5 minutes to form a carbon nanotube with a mass fraction of 0.05%. Carbon nanomaterial dispersion;

[0041](2) After mixing glass fibers with a diameter of 15 μm and glass wool fibers with a diameter of 0.05 to 0.5 μm at a mass ratio of 1:1, add water and acid to adjust the pH value to 3, and disperse at a speed of 2000 rpm for 10 minutes Then add the polyacrylamide aqueous solution that is 1g / L by the polyacrylamide that molecular weight is 100,000 to add water to configure, and the mass fraction summation that is configured into glass fiber and glass wool fiber is the glass fiber material dispersion liquid of 0.05%, wherein , the addition of polyacrylamide aque...

Embodiment 3

[0045] A preparation method of glass fiber air filter paper containing carbon nanomaterials, comprising the following steps:

[0046] (1) Add carbon nanofibers with a diameter of 80 to 100nm into an aqueous solution of sodium dodecylbenzenesulfonate at a concentration of 0.1g / L, and disperse them ultrasonically for 5 minutes at 1000W to configure the mass fraction of carbon nanofibers 0.5% carbon nanomaterial dispersion;

[0047] (2) After mixing glass fibers with a diameter of 25 μm and glass wool fibers with a diameter of 0.5 to 2 μm at a mass ratio of 1:2, add water and acid to adjust the pH value to 3, and decompose and disperse at a speed of 2000 rpm for 10 minutes; then add A polyacrylamide aqueous solution with a concentration of 1 g / L prepared by adding water to a polyacrylamide with a molecular weight of 10 million is prepared as a glass fiber material dispersion with a total mass fraction of glass fibers and glass wool fibers of 0.01%, wherein polypropylene The addi...

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Abstract

The invention relates to glass-fiber air filter paper containing carbon nanometer materials and a preparing method thereof. The preparing method includes the following steps that 1, the carbon nanometer materials are added into an anion-dispersing-agent water solution, the mixture is subjected to ultrasonic dispersion, and carbon-nanometer-material dispersion liquid is prepared; 2, glass fiber materials are added into water, acid is added, the pH value is adjusted to 2.5 to 3.5, then the mixture is dispersed, then a stabilizer water solution is added, and glass-fiber-material dispersion liquid is prepared; 3, the carbon-nanometer-material dispersion liquid and the glass-fiber-material dispersion liquid are mixed to be even and fed to a forming device to be sucked, then forming wet paper is obtained, sizing and drying are carried out, and the glass-fiber air filter paper is obtained. The glass-fiber air filter paper containing the carbon nanometer materials prepared with the method is of a functional double-layer structure, and is applied to the field of air filter paper, air resistance is small, filter efficiency is high, powder falling is avoided, and the excellent antimicrobial performance is achieved.

Description

technical field [0001] The invention relates to the field of materials, in particular to a glass fiber air filter paper containing carbon nanomaterials and a preparation method thereof. Background technique [0002] The smaller the fiber diameter of the filter material, the smaller the particle size for removing particles in the air, and the higher the filtration efficiency. Compared with traditional fibers, nanoscale materials exhibit better filtration performance. Carbon nanomaterials have small nanoscale diameter, huge specific surface area, excellent adsorption performance, and super mechanical properties, which make them have good application prospects in the field of air filtration. At present, industrial production of carbon nanomaterials has been realized, and the products of carbon nanomaterials are relatively cheap, and the length is getting longer and longer, which provides direct conditions for the application of carbon nanomaterials in the field of air filtrati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/08D21H13/40D21H13/50D21H21/08D21H21/14
CPCD21H13/40D21H13/50D21H21/08D21H21/14D21H27/08
Inventor 胡庭维肖辉刘铸吴立群
Owner KUNMING NATAI TECH CO LTD
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