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A kind of filter material capable of releasing ecological negative ions and preparation method thereof

A filter material and negative ion technology, which is applied in the field of filter material that can release ecological negative ions and its preparation, can solve the problem of inability to remove tiny dust in the air, and achieve stable and reliable product quality, high release rate, and high release efficiency.

Active Publication Date: 2022-07-12
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current filter materials are limited to rough filtration of the air, and cannot remove tiny dust in the air, as well as organic pollutants such as formaldehyde in the air.

Method used

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  • A kind of filter material capable of releasing ecological negative ions and preparation method thereof
  • A kind of filter material capable of releasing ecological negative ions and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0040] The preparation method of the filter material comprises the following steps:

[0041] 1) Add the negative ion powder, inorganic dispersant and deionized water to a wet high-speed mill for high-speed grinding for 0.5-5 hours to obtain a stable dispersion containing nano-negative ion powder with a particle size of 10-100 nm.

[0042] Among them, the inorganic dispersant is:

[0043] One or several mixtures of silicates or polyacrylic acids, the concentration in the dispersion is 0.1-3.0wt%;

[0044] Or one or more mixtures of alkali metal phosphates; the concentration in the dispersion is 0.1-3.0wt%;

[0045] Or several mixtures of silicates and alkali metal phosphates, and the concentration in the dispersion is 0.1-3.0 wt%.

[0046] The silicates are selected from water glass, KH-550, KH-560 and KH-570; the polyacrylic acids are selected from polyacrylic acid metal salts; the alkali metal phosphates are selected from sodium tripolyphosphate, Sodium hexametaphosphate a...

Embodiment 1

[0051] A filter material capable of releasing ecological negative ions, the main body of which is an air or water filter substrate of macromolecular material loaded with nano negative ion powder; the nano negative ion powder accounts for 0.3% of the total mass of the filter material. The average amount of ecological negative ions released from the filter material is 5865 / cm 3 .

[0052] Wherein, the filter substrate is PET fiber.

[0053] The components of the nano negative ion powder are selected from tourmaline, opal and silicate minerals, and the ratio is 45:35:20.

[0054] The preparation method of the filter material comprises the following steps:

[0055] 1) Add the negative ion powder, inorganic dispersant and deionized water to a wet high-speed mill for high-speed grinding for 2 hours to obtain a stable dispersion liquid containing nano-negative ion powder with a particle size of about 50 nanometers.

[0056] Among them, the inorganic dispersants are KH-550 and sodi...

Embodiment 2

[0061] A filter material capable of releasing ecological negative ions, the main body of which is an air or water filter substrate of macromolecular material loaded with nano negative ion powder; the nano negative ion powder accounts for 0.5% of the total mass of the filter material. The average amount of ecological negative ions released from the filter material is 8330 / cm 3 .

[0062] Wherein, the filter substrate is PET fiber.

[0063] The components of the nano negative ion powder are selected from tourmaline, opal and silicate minerals, and the ratio is 45:35:20.

[0064] The preparation method of the filter material comprises the following steps:

[0065] 1) Add the negative ion powder, inorganic dispersant and deionized water to a wet high-speed mill for high-speed grinding for 2 hours to obtain a stable dispersion liquid containing nano-negative ion powder with a particle size of about 50 nanometers.

[0066] Among them, the inorganic dispersants are KH-550 and sodi...

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Abstract

The invention relates to the field of filter materials, and discloses a filter material capable of releasing ecological negative ions and a preparation method thereof. The preparation method includes: 1) mixing negative ion powder, inorganic dispersant and deionized water at high speed to obtain a stable dispersion liquid containing nano negative ion powder; 2) adding the stable dispersion liquid to the water-based adhesive, stirring at high speed and emulsifying , to obtain an open-pore water-based adhesive emulsion containing nano anion powder; 3) adopt the intermittent point-spraying water process to carry out multiple dispersed point-spraying water operations on the filter substrate to obtain a filter substrate loaded with nano anion powder; 4) curing the filter substrate to obtain a finished product. The filter material of the invention has high-efficiency solid load performance, the load is not easy to fall off, and the release amount of ecological negative oxygen ions can reach up to 25,000 pieces / cm 2 .

Description

technical field [0001] The invention relates to the field of filter materials, in particular to a filter material capable of releasing ecological negative ions and a preparation method thereof. Background technique [0002] At present, the ventilation filter is mainly made of PP, PET and other fibers into one piece. It has good acid and alkali resistance and corrosion resistance, and has low resistance. It can be cleaned repeatedly, and the economy is relatively high. The long and short fibers and dust particles captured by it are easy to clean, the filtration efficiency is not affected by cleaning, and the impact resistance is very good. It is the first choice for customers. The air-conditioning filter has a concave-convex honeycomb structure, which can be widely used in sewage filtration systems and air filtration. Moreover, the air conditioner filter is easy to clean and has been recognized by the majority of users. All of the above are coarse filters, the main purpose ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D39/14B01D46/00
CPCB01D39/14B01D46/0036B01D2239/10Y02A50/2351
Inventor 万军民
Owner ZHEJIANG SCI-TECH UNIV
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