A kind of high flame-retardant glass fiber air filter paper and preparation method thereof

A technology of air filter paper and glass fiber, applied in the direction of filter paper, synthetic cellulose/non-cellulose material pulp/paper, filter separation, etc., can solve the problem of glass fiber air filter paper losing its air filtration function, incapable of flame retardancy, and accelerating fire and other problems, to achieve high strength, uniform and fine gaps, and good filtering effect

Active Publication Date: 2016-03-30
CHONGQING ZAISHENG TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional glass fiber air filter paper uses polymer materials as bonding and reinforcing agents, but most polymer materials are easy to burn in the air. When a fire occurs in the working environment of glass fiber air filter paper, ordinary glass fiber air filter paper will not only Can not be flame retardant, but will accelerate the spread of fire
When the polymer material used as a bonding and reinforcing agent is ignited, the entire glass fiber air filter paper will lose its air filtering function, resulting in more serious consequences

Method used

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  • A kind of high flame-retardant glass fiber air filter paper and preparation method thereof

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Effect test

Embodiment 1

[0023] This embodiment prepares the method for high flame-retardant glass fiber air filter paper, comprises the following steps:

[0024] (1) Raw material preparation: Select the non-alkali glass fiber cotton with a diameter of 7-9 μm and the non-alkali glass fiber cotton with a diameter of 0.3-0.4 μm according to the mass ratio of 1:4;

[0025] (2) Dispersed pulping: Add the raw materials selected in step (1) into the beater and disperse for 25 minutes, then add clear water to make the slurry mass concentration 2.2%, then add sulfuric acid solution to adjust the slurry pH=3.8;

[0026] (3) Wet forming: Dilute the slurry obtained in step (2) to a mass concentration of 0.2% and perform slag removal treatment, then transport the slurry to an inclined wire former to form wet paper;

[0027] (4) Spraying sizing material: the wet paper obtained in step (3) is sprayed with glue, and the sprayed bonding sizing material is a mixture of acrylic acid emulsion and halogen-free organic ph...

Embodiment 2

[0031] This embodiment prepares the method for high flame-retardant glass fiber air filter paper, comprises the following steps:

[0032] (1) Raw material preparation: select the non-alkali glass fiber cotton with a diameter of 7-9 μm and the non-alkali glass fiber cotton with a diameter of 0.3-0.4 μm according to the mass ratio of 1:3.8;

[0033] (2) Dispersed pulping: Add the raw materials selected in step (1) into a beater for beating and disperse for 25 minutes, then add clear water to make the slurry mass concentration 2.5%, then add sulfuric acid solution to adjust the slurry pH=4.0;

[0034] (3) Wet forming: Dilute the slurry obtained in step (2) to a mass concentration of 0.3% and perform slag removal treatment, then transport the slurry to an inclined wire former to form wet paper;

[0035] (4) Spraying sizing material: the wet paper obtained in step (3) is sprayed and processed, and the sprayed bonding sizing material is a mixture of acrylic acid emulsion and organic...

Embodiment 3

[0039] This embodiment prepares the method for high flame-retardant glass fiber air filter paper, comprises the following steps:

[0040] (1) Raw material preparation: Select the non-alkali glass fiber cotton with a diameter of 7-9 μm and the non-alkali glass fiber cotton with a diameter of 0.3-0.4 μm according to the mass ratio of 1:4.2;

[0041] (2) Dispersed pulping: Add the raw materials selected in step (1) into a beater for beating and disperse for 25 minutes, then add clear water to make the slurry mass concentration 2.0%, then add sulfuric acid solution to adjust the slurry pH=3.5;

[0042] (3) Wet forming: Dilute the slurry obtained in step (2) to a mass concentration of 0.1% and perform slag removal treatment, then transport the slurry to an inclined wire former to form wet paper;

[0043] (4) glue spraying: step (3) gained wet paper is carried out glue spraying treatment, and the glue sprayed is acrylic acid emulsion and organic phosphate mixture;

[0044] (5) Suct...

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Abstract

The invention discloses a piece of high flame retardancy glass fiber air filtering paper which is prepared from alkali-free glass fiber cotton with the diameter being 7-9 micrometers, alkali-free glass fiber cotton with the diameter being 0.3-0.4 micrometer, and a binding material, wherein the mass ratio of the alkali-free glass fiber cotton with the diameter being 7-9 micrometers to the alkali-free glass fiber cotton with the diameter being 0.3-0.4 micrometer is 1:(3.8-4.2); the binding material is a mixture of acrylic emulsion and a halogen-free organic phosphate fire retardant. The invention further discloses a preparation method of the high flame retardancy glass fiber air filtering paper. The preparation method comprises the following steps of firstly, pulping to disperse the raw materials so as to obtain pulp, subsequently gluing wet paper, removing moisture in the wet paper, and finally drying so as to obtain a product. The glass fiber air filtering paper is smooth and uniform in surface, and good in flame retardant property.

Description

technical field [0001] The invention belongs to the field of air filter paper, and relates to a highly flame-retardant glass fiber air filter paper and a method for manufacturing the filter paper. Background technique [0002] Glass fiber air filter paper has excellent mechanical properties, heat resistance and corrosion resistance, and is widely used in aviation, aerospace, electronics, machinery, chemical and other fields. Conventional glass fiber air filter paper uses polymer materials as bonding and reinforcing agents, but most polymer materials are easy to burn in the air. When a fire occurs in the working environment of glass fiber air filter paper, ordinary glass fiber air filter paper will not only It cannot be flame retardant, but will accelerate the spread of fire. When the polymer material used as bonding and reinforcing agent is ignited, the whole glass fiber air filter paper will lose its air filtering function, which will lead to more serious consequences. C...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H27/08D21H13/40
Inventor 秦大江郭茂
Owner CHONGQING ZAISHENG TECH CORP
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