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A kind of thermosetting machine air filter paper and preparation method thereof

A machine air filter paper, thermosetting technology, applied in filter paper, separation methods, chemical instruments and methods, etc., can solve the problems of large coating amount of resin layer, medium fluid passing, filtration efficiency, and thickness that affect the filter paper. The pore space is large, the effect of improving the fluid passage of the medium and reducing the thickness of the paper

Active Publication Date: 2017-06-20
杭州特种纸业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are also defects: since there are resin layers on both sides of the filter paper, and the coating amount of the resin layer is relatively large, resulting in a thicker thickness, which seriously affects the medium fluid permeability and filtration efficiency of the filter paper.

Method used

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  • A kind of thermosetting machine air filter paper and preparation method thereof
  • A kind of thermosetting machine air filter paper and preparation method thereof
  • A kind of thermosetting machine air filter paper and preparation method thereof

Examples

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Effect test

Embodiment 1

[0034] Such as figure 1 As shown, a thermosetting machine air filter paper includes an upper filter layer 1, a lower filter layer 2, and a phenolic resin layer 3 attached to the upper surface of the upper filter layer and the lower surface of the lower filter layer.

[0035] Wherein, the thickness of the upper filter layer is 0.13-0.14mm, and the thickness of the lower filter layer is 0.18-0.19mm.

[0036] A preparation method of thermosetting machine air filter paper, carried out according to the following steps:

[0037] a. Preparation of the base paper for the upper filter layer: 30 parts of mercerized fiber, 15 parts of sisal fiber, and 15 parts of horn gourd fiber are mixed and beaten, the concentration of the slurry is 2.2wt%, and the degree of beating until the slurry is 13° After SR, refining is carried out until the degree of beating is 18°SR, and slurry a is obtained; 1 part of ethylene glycol diglycidyl ether is added to the slurry a, and the slurry b is obtained a...

Embodiment 2

[0044] A thermosetting machine air filter paper comprises an upper filter layer, a lower filter layer and a phenolic resin layer attached to the upper surface of the upper filter layer and the lower surface of the lower filter layer.

[0045] Wherein, the thickness of the upper filter layer is 0.10-0.11 mm, and the thickness of the lower filter layer is 0.18-0.19 mm.

[0046] A preparation method of thermosetting machine air filter paper, carried out according to the following steps:

[0047] a. Preparation of the base paper for the upper filter layer: 20 parts of mercerized fiber, 10 parts of sisal fiber, and 10 parts of horn gourd fiber are mixed and beaten, the concentration of the slurry is 1.9wt%, and the degree of beating until the slurry is 12° After SR, refine the pulp again until the degree of beating is 16°SR to obtain slurry a; add 0.5 parts of ethylene glycol diglycidyl ether to the slurry a, and stir evenly to obtain slurry b; Add 0.2 parts of sodium hexametaphos...

Embodiment 3

[0054] A thermosetting machine air filter paper comprises an upper filter layer, a lower filter layer and a phenolic resin layer attached to the upper surface of the upper filter layer and the lower surface of the lower filter layer.

[0055] Wherein, the thickness of the upper filter layer is 0.15-0.16mm, and the thickness of the lower filter layer is 0.19-0.20mm.

[0056] A preparation method of thermosetting machine air filter paper, carried out according to the following steps:

[0057] a. Preparation of the base paper for the upper filter layer: 40 parts of mercerized fiber, 20 parts of sisal fiber, and 20 parts of horn gourd fiber are mixed and beaten, the concentration of the slurry is 2.5wt%, and the degree of beating until the slurry is 14° After SR, refine the pulp again until the degree of beating is 20°SR to obtain slurry a; add 1.5 parts of ethylene glycol diglycidyl ether to the slurry a, and stir evenly to obtain slurry b; Add 0.4 parts of sodium hexametaphosph...

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Abstract

The invention relates to the technical field of filter paper and discloses thermosetting engine oil and air filter paper and a preparation method thereof. The thermosetting engine oil and air filter paper comprises an upper filter layer, a lower filter layer and resin layers arranged on the upper surface of the upper filter layer and the lower surface of the lower filter layer, wherein the upper filter layer is prepared from raw materials in parts by mass as follows: 20-40 parts of mercerized fibers, 10-20 parts of sisal fibers, 10-20 parts of calotropis gigantea fibers, 0.5-1.5 parts of ethylene glycol diglycidyl ether, 0.2-0.4 parts of a dispersant and a required amount of water; the lower filter layer is prepared from raw materials in parts by mass as follows: 50-70 parts of broadleaf wood fibers, 1-3 parts of titanium dioxide aerogel particles, 1-3 parts of beta-cyclodextrin, 0.5-1.5 parts of carboxymethyl cellulose, 0.5-1.5 parts of ethylene glycol diglycidyl ether and a required amount of water. According to the thermosetting engine oil and air filter paper, the consumption and the thickness of the resin layers are reduced and the medium fluid permeability and filtering efficiency of paper are improved on the basis that the water resistance, the oil resistance and the breaking resistance of paper are guaranteed.

Description

technical field [0001] The invention relates to the technical field of filter paper preparation, in particular to a thermosetting machine air filter paper and a preparation method thereof. Background technique [0002] Machine air filter paper is a key component in the base filter and air filter, which determines the performance of the two filters. Machine air filter paper usually includes a paper filter layer made of ordinary wood pulp as the main component. Because ordinary wood pulp fibers are finer and tighter, the machine air filter paper made generally has high tightness, Low filtration efficiency, short life, etc., and as machine air filter paper, it needs to adapt to both air and high temperature oil environments at the same time, and its performance indicators are more demanding. At this stage, machine air filter paper still generally has curability, water resistance, and oil resistance. Poor performance, not high temperature resistant and not environmentally frien...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H27/08D21H19/84D21H11/12D21H17/69D21H17/06D21H21/08D21H11/00D21H19/24C01G23/053C01G23/08
CPCC01G23/053C01G23/08D21H11/00D21H11/12D21H17/06D21H17/25D21H17/28D21H17/69D21H17/74D21H19/24D21H19/84D21H21/08D21H27/08
Inventor 吴安波
Owner 杭州特种纸业有限公司