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High flame retardancy glass fiber air filtering paper and preparation method thereof

An air filter paper, glass fiber technology, applied in the direction of filter paper, synthetic cellulose/non-cellulose material pulp/paper, filtration and separation, etc., can solve the problem that glass fiber air filter paper loses air filtration function, cannot be flame retardant, and accelerates fire. and other problems, to achieve the effect of high strength, uniform and meticulous voids, and good filtering effect.

Active Publication Date: 2014-02-05
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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  • High flame retardancy glass fiber air filtering paper and preparation method thereof
  • High flame retardancy glass fiber air filtering paper and preparation method thereof

Examples

Experimental program
Comparison scheme
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 7-9um and the non-alkali glass fiber cotton with a diameter of 0.3-0.4um according to the mass ratio of 1:4;

[0025] (2) Dispersion pulping: Add the raw materials selected in step (1) into the beater and disperse for 25 minutes, then add 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) Spray glue: spray glue on the wet paper obtained in step (3), the glue sprayed is a mixture of acrylic emulsion and halogen-free organic phosphate (OP flame retardant);

[0028] (5) Suction dehy...

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 7-9um and the non-alkali glass fiber cotton with a diameter of 0.3-0.4um respectively according to the mass ratio of 1:3.8;

[0033] (2) Dispersion pulping: add the raw materials selected in step (1) into the beater and disperse for 25 minutes, then add 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) Spray glue: spray glue on the wet paper obtained in step (3), the glue sprayed is a mixture of acrylic emulsion and organic phosphate;

[0036] (5) Suction dehydration: perform su...

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 7-9um and the non-alkali glass fiber cotton with a diameter of 0.3-0.4um respectively according to the mass ratio of 1:4.2;

[0041] (2) Dispersion pulping: Add the raw materials selected in step (1) into the beater and disperse for 25 minutes, then add water to make the slurry mass concentration 2.0%, and 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) Spray glue: spray glue on the wet paper obtained in step (3), the glue sprayed is a mixture of acrylic emulsion and organic phosphate;

[0044] (5) Suction dehydration: perfor...

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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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IPC IPC(8): D21H27/08D21H13/40
Inventor 秦大江郭茂
Owner CHONGQING ZAISHENG TECH CORP
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