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Preparation method of high-efficiency and low-resistance fully synthetic fiber air filter material

An air filter material and synthetic fiber technology, which is applied in the field of preparation of high-efficiency and low-resistance full-synthetic fiber air filter materials to achieve the effects of low surface filtration resistance, good blowback effect, and avoidance of delamination

Active Publication Date: 2022-08-09
SHANDONG RENFENG SPECIAL MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: to overcome the deficiencies of the prior art, to provide a preparation method of high-efficiency and low-resistance full-synthetic fiber air filter material, the design of which is scientific and reasonable, and the obtained air filter material not only ensures long life and economical Use requirements, and can ensure the accuracy requirements for any road conditions, while avoiding the problem of poor moisture resistance and easy deformation of traditional wood pulp paper, avoiding the risk of delamination of composite materials, and has the advantages of low resistance and high efficiency

Method used

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  • Preparation method of high-efficiency and low-resistance fully synthetic fiber air filter material
  • Preparation method of high-efficiency and low-resistance fully synthetic fiber air filter material

Examples

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Comparison scheme
Effect test

Embodiment 1

[0031] A preparation method of a high-efficiency and low-resistance fully synthetic fiber air filter material, comprising the following steps:

[0032] (1) Pulping: To disperse polyester fiber and glass fiber by a hydraulic pulper, first disperse 1.5D polyester fiber and 0.6D polyester fiber for 5 minutes; add glass fiber to disperse for 1 minute, and then add 0.3D polyester fiber to disperse 2min, finally add skin-core structure bi-component polyester fiber for 1min dispersion, the final mass concentration of fiber in water is controlled at 7%; the dispersion water is 30% pure water + 70% clean water;

[0033] The pulping includes the following raw materials in parts by mass:

[0034] 27 parts of 3D polyester fiber, 23 parts of 0.6D polyester fiber, 2 parts of glass fiber with a tap degree of 50°SR; 15 parts of bicomponent polyester fiber with sheath-core structure; 7 parts of 0.3D polyester fiber.

[0035] (2) Forming: the mixed slurry suspension obtained in step (1) is sen...

Embodiment 2

[0040] A preparation method of a high-efficiency and low-resistance fully synthetic fiber air filter material, comprising the following steps:

[0041] (1) Pulping: To disperse polyester fiber and glass fiber by a hydraulic pulper, first disperse 1.5D polyester fiber and 0.6D polyester fiber for 5 minutes; add glass fiber to disperse for 1 minute, and then add 0.3D polyester fiber to disperse 2min, and finally add skin-core structure bi-component polyester fiber for 1min dispersion, the final mass concentration of fiber in water is controlled at 7-12%; the dispersion water is 30% pure water + 70% clean water;

[0042] The pulping includes the following raw materials in parts by mass:

[0043] 32 parts of 3D polyester fiber, 18 parts of 0.6D polyester fiber, 5 parts of glass fiber with a tap degree of 60°SR; 10 parts of bicomponent polyester fiber with sheath-core structure; 13 parts of 0.3D polyester fiber.

[0044] (2) Forming: the mixed slurry suspension obtained in step (1...

Embodiment 3

[0049] A preparation method of a high-efficiency and low-resistance fully synthetic fiber air filter material, comprising the following steps:

[0050] (1) Pulping: To disperse polyester fiber and glass fiber by a hydraulic pulper, first disperse 1.5D polyester fiber and 0.6D polyester fiber for 5 minutes; add glass fiber to disperse for 1 minute, and then add 0.3D polyester fiber to disperse 2min, and finally add skin-core structure bi-component polyester fiber for 1min dispersion, the final mass concentration of fiber in water is controlled at 7-12%; the dispersion water is 30% pure water + 70% clean water;

[0051] The pulping includes the following raw materials in parts by mass:

[0052] 30 parts of 3D polyester fiber, 21 parts of 0.6D polyester fiber, 3 parts of glass fiber with a tap of 55°SR; 12 parts of bicomponent polyester fiber with sheath-core structure; 11 parts of 0.3D polyester fiber.

[0053] (2) Forming: the mixed slurry suspension obtained in step (1) is se...

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Abstract

The invention relates to a preparation method of a high-efficiency and low-resistance full synthetic fiber air filter material, and belongs to the technical field of automobile air filter materials. The present invention includes: (1) first dispersing 1.5D polyester fiber and 0.6D polyester fiber; adding glass fiber to disperse, then adding 0.3D polyester fiber to disperse, and finally adding skin-core structure bicomponent polyester fiber to disperse; ( 2) The mixed slurry suspension is sent to the slanting screen paper machine, the pulp is clothed in a single layer, and the paper is integrally formed to obtain the base paper sheet; (3) The base paper sheet is dried; (4) The acrylic resin glue is used for gluing ; (5) Dry curl. The design of the invention is scientific and reasonable, and the air filter material prepared by the invention not only ensures the economical use requirement of long life, but also ensures the accuracy requirement applicable to any road conditions. The risk of delamination of composite materials has the advantages of low resistance and high efficiency.

Description

technical field [0001] The invention relates to a preparation method of a high-efficiency and low-resistance full synthetic fiber air filter material, and belongs to the technical field of automobile air filter materials. Background technique [0002] Filter paper is the key material of the filter, and air filter paper has high requirements for air intake resistance, filtration accuracy and service life. The traditional process of wood pulp paper or wood pulp plus polyester fiber can only reach F7 level in filtration accuracy. At the same time, the air intake resistance is large, and it is more sensitive to the environment. The weather in the south is humid and rainy, which will cause the filter element to absorb moisture and then The resistance increases and the fuel consumption increases. [0003] At present, some manufacturers promote nano-paper. Using wood pulp paper as the skeleton and coating the surface with PVDF or PTFE material, the purpose of high precision and lo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H27/08D21H13/24D21H13/40D21H15/02D21H19/20D21F11/14
CPCD21H27/08D21H13/24D21H13/40D21H15/02D21H19/20D21F11/14Y02A50/2351
Inventor 葛龙宋佃凤徐汝义李亚丽
Owner SHANDONG RENFENG SPECIAL MATERIALS