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Preparation method of glass fiber air filter paper

A technology of glass fiber and air filter paper, applied in the direction of filter paper, separation method, fiber raw material processing, etc., can solve the problems of easy leakage, low strength, large volume and weight, etc., and achieve good high temperature resistance, enhanced tensile strength, and high filtration efficiency effect

Inactive Publication Date: 2016-09-21
威县泰达纸业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, pure glass microfiber filter paper is mostly used in the environment with high temperature at home and abroad. This kind of filter paper does not contain binder, and most of the filter paper manufacturers at home and abroad can produce it. This kind of filter paper without binder Paper has the disadvantages of low strength, which is not conducive to mechanized production, and has a large volume and weight, and is easy to leak.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Glass fiber air filter paper 1 as the filter base layer uses two kinds of borosilicate glass microfibers as the main raw material, mixed with alkali-free continuous glass fiber chopped strands with a diameter of 6 μm and a fiber length of 6 mm and 9 mm, and 1.5:1 mixed polyester and aramid. The slurry is made of rayon organic fiber, and it is stirred and mixed evenly by a high-frequency decomposer. After the forming net is vacuum-formed, the water-soluble acrylic emulsion, water-soluble polyvinyl acetate emulsion and water-soluble phenolic resin emulsion are mixed according to 1.5 in the batching device. : 2.5: 2.5 mix, and dilute 10 times with water, evenly spray the diluted emulsion on the sizing part and vacuum suction, and then dry in a steam dryer at 150°C for 2-3min.

Embodiment 2

[0012] In this embodiment, as the glass fiber air filter paper 1 of the filter base layer, two kinds of borosilicate glass microfibers are used as the main raw material, mixed with alkali-free continuous glass fiber chopped strands with a diameter of 6 μm and a fiber length of 6 mm, and organic fiber aromatics. The slurry is made of lentil chopped fiber, and it is stirred and mixed evenly by a high-frequency debulking machine. After the forming net is vacuum-formed, the water-soluble acrylic emulsion, water-soluble polyvinyl acetate emulsion and water-soluble phenolic resin emulsion are mixed in the batching device according to After mixing 2:3:3, dilute 10 times with water, spray the diluted emulsion evenly on the sizing part and vacuum suction, and then dry it in a steam dryer at 150°C for 2-3 minutes.

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PUM

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Abstract

The invention relates to an air filtration material, in particular to a baffleless high temperature resistant air filter paper and a preparation method thereof. The preparation method consists of: mixing 60%-80% of borosilicate glass fiber, 5%-20% of alkali-free continuous glass fiber chopped yarns, and 5%-8% of organic fiber into a pulp; stirring the pulp evenly by a deflaker, and performing vacuum forming in a forming net to obtain a glass fiber air filtration layer; mixing a water soluble acrylic emulsion, a water soluble polyvinyl acetate solution and a water soluble phenol-formaldehyde resin emulsion according to a volume ratio of 2:8:8, then adding water to dilute the mixture 6-10 times, then sprinkling or leaving the diluted emulsion evenly to the glass fiber air filtration layer, and conducting drying to form a product. Specifically, the mass of the resin layer accounts for 2-8% of that of the glass fiber filter paper, and the water soluble resin layer can tolerate high temperature up to 200-300DEG C.

Description

technical field [0001] The invention relates to an air filter material, and in particular to a high-temperature-resistant air filter paper without a partition and a preparation method thereof. Background technique [0002] Air filter paper is a key component of the air filter element, and its performance determines the effect of the air filter. As the pharmaceutical, medical and health, electronics and other industries have higher and higher requirements for the cleanliness of workshops, higher requirements are put forward for air filters. In particular, ultra-clean ovens or high-temperature air purification equipment and systems required by food, pharmaceutical and other production links have a maximum operating temperature of 350°C, so higher requirements are placed on the temperature resistance of filter paper. At present, pure glass microfiber filter paper is mostly used in the environment with high temperature at home and abroad. This kind of filter paper does not cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H15/12D21H13/40D21H13/26D21H13/24D21H19/12D21H27/08
CPCD21H15/12D21H13/24D21H13/26D21H13/40D21H19/12D21H27/08
Inventor 包玉鑫
Owner 威县泰达纸业有限公司