Flame-retardant and efficient air filter paper

An air filter paper, high-efficiency technology, applied in the direction of filter paper, filtration separation, membrane filter, etc., can solve the problems of drop, flame retardant blocking performance, easy moisture absorption of flame retardant paper, etc., to achieve excellent filtration performance, flame retardant performance Good, not easy to absorb moisture effect

Inactive Publication Date: 2020-06-09
SHANDONG RENFENG SPECIAL MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing production of flame-retardant paper on the market is easy to absorb moisture, and there is also the problem that the flame retardant blocks the surface of the paper and causes performance degradation.

Method used

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  • Flame-retardant and efficient air filter paper
  • Flame-retardant and efficient air filter paper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] see Figure 1-2 , The present invention provides a technical solution: a flame-retardant high-efficiency air filter paper, comprising: a base paper sheet 1 and a flame-retardant emulsion 5 .

[0035] Wherein, the flame retardant emulsion 5 includes phenolic resin glue 2 , hydrosol film forming 3 and flame retardant 4 .

[0036] Further, the phenolic resin glue 2 improves the dust holding capacity compared with normal hydrosol film formation.

[0037] Further, the hydrosol film forming 3 provides the required strength for paper forming and certain water resistance.

[0038] Further, flame retardant 4 provides paper flame retardancy.

[0039] Wherein, the flame retardant emulsion 5 is coated on the surface of the base paper sheet 1 .

[0040] Wherein, the phenolic resin glue 2 forms a three-dimensional structure on the surface of the base paper sheet 1 .

[0041] Further, the retention of dust holding capacity is greatly improved.

Embodiment 2

[0043] see figure 2 , the present invention provides a technical solution: a method for preparing flame-retardant and efficient air filter paper, comprising the following steps:

[0044] S1. Pulp preparation: choose hardwood pulp 10% + softwood pulp 65% + polyester fiber 20% + glass fiber 5% raw materials, the addition of polyester fiber and glass fiber can greatly improve performance and service life;

[0045] S2. Pulping: During the pulping process, the wood pulp raw material is crushed by a pulper. The crushing time is 30 minutes, and the concentration is controlled at 7.2%. Then the polyester fiber raw material and the glass fiber raw material are dispersed in the hydraulic pulper. Time 2min;

[0046] S3. Flow delivery system: the wood pulp passes through the deflaker, and the stepped tooth disc deflaker is selected. Without feeding the knife, the polyester fiber and glass fiber also pass through the deflaker to make them more fully dispersed;

[0047] S4. Forming: Send...

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PUM

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Abstract

The invention discloses flame-retardant and efficient air filter paper, which comprises a raw paper sheet, a flame retardant emulsion; wherein the flame-retardant emulsion comprises phenolic resin glue, a hydrosol film and a flame retardant; wherein the flame-retardant emulsion is coated on the surface of a raw paper sheet; the invention can provide a production mode of the flame-retardant filterpaper, has the advantages of favorable flame retardancy, excellent filter performance and environment friendliness, can continuously and effectively keep flame retardancy, is not easy to absorb moisture, and retains higher dust holding performance.

Description

technical field [0001] The invention relates to the technical field of automobile filter paper, in particular to a flame-retardant and high-efficiency air filter paper. Background technique [0002] Cars are becoming more and more common now, and they are also an indispensable means of transportation for travel, but the safety hazards that follow are also unavoidable. With the continuous improvement of national standards, the requirements for environmental protection, safety and lifespan of automotive materials are also increasing. The higher the flame retardant performance requirements for automobile filter paper, the greater the benefit to its use safety and life. [0003] However, the existing production of flame-retardant paper on the market is easy to absorb moisture, and there is also the problem that the flame-retardants block the surface of the paper and cause performance degradation. Contents of the invention [0004] The object of the present invention is to pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/08D21H11/00D21H13/40D21H13/24D21H21/34D21H21/16D21H17/48D21H17/66B01D39/16
CPCB01D39/16B01D2239/04B01D2239/0407B01D2239/10D21H11/00D21H13/24D21H13/40D21H17/48D21H17/66D21H21/16D21H21/34D21H27/08
Inventor 葛龙宋佃凤
Owner SHANDONG RENFENG SPECIAL MATERIALS
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