Composite filter paper for filter and preparation method of composite filter paper

A technology of filter paper and filter layer, which is applied in the field of composite filter paper for filter and its preparation, can solve the problems of poor folding and difficult to meet process requirements, and achieves increased absorption capacity, is conducive to design and installation, and has good air permeability and capacity. The effect of dust rate

Active Publication Date: 2018-04-03
佛山市豹王滤芯制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the shape of filter paper made of synthetic fibers usually has a high degree of straightness and poor foldability, which is difficult to meet the technical requirements of making filter paper into filter elements

Method used

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  • Composite filter paper for filter and preparation method of composite filter paper
  • Composite filter paper for filter and preparation method of composite filter paper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Example 1 Preparation of negatively charged moxa moss mid-length fibers:

[0034] Get moxa moss and carry out ultrafine pulverization to obtain moss moss superfine powder, disperse in 75% ethanol, make the solution that mass concentration is 10%, then add moxa moss: the mass ratio of dimer acid is the ratio of 1:0.2 Polyacid is uniformly dispersed by high-speed mechanical stirring, and then placed in a pressure capillary rheometer at 180°C and 7MPa to flow out naturally, cooled, and the filaments are collected, and the filaments are cut into lengths of 60 μm to obtain negative charges. Modified moxa medium long fiber.

Embodiment 2

[0035] Example 2 Preparation of positively charged moxa short fiber:

[0036] Take moxa and carry out ultrafine pulverization to obtain superfine powder of moxa, disperse it in water to make a solution with a mass concentration of 10%, and then press moxa: the mass ratio of polyamide polyamine epichlorohydrin is 1:0.2 Add polyamide polyamine epichlorohydrin, disperse evenly through high-speed mechanical stirring, then place it in a pressure capillary rheometer at 180°C and 10MPa to flow out naturally, cool, collect filaments, and cut the filaments The length is 10 μm, and the medium-long fibers of positively charged moxa powder are obtained.

Embodiment 3

[0037] Example 3 Preparation of composite filter paper

[0038] (1) Preparation of ash-holding layer: Take 100 parts of corn bio-based fiber, 100 parts of negatively charged moxa moss mid-length fiber, 20 parts of organic flexible fiber, and 10 parts of polycarbodiimide. The mass concentration is 0.3%, and then the impurity is removed, and after being deflagged by a deflaker, the pulp is refined, and finally the pulp is sent to an inclined wire former to form a wet paper, which is dried.

[0039] (2) Preparation of filter layer: take 100 parts of seaweed carbon fiber, 100 parts of positively charged moxa short fiber, 40 parts of ethyl cellulose, 15 parts of aluminum oxide, and 2 parts of cetyltrimethylammonium bromide After mixing, dilute the slurry obtained by beating to a mass concentration of 1%, then remove impurities, and then refine the pulp after being decomposed by a deflagging machine, and finally transport the slurry to an inclined wire former to form wet paper, soak...

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Abstract

The invention relates to composite filter paper for a filter and a preparation method of the composite filter paper. The composite filter paper comprises an ash accommodating layer, a filtration layerand a refined filtration layer, wherein the ash accommodating layer is prepared from raw materials as follows: corn bio-based fiber, polycarbodiimide, organic flexible fiber and negative electricitymodified wormwood powder mid-fiber; the filtration layer is prepared from raw materials as follows: alga carbon fiber, ethyl cellulose, aluminium oxide, hexadecyl trimethyl ammonium bromide and positive electricity modified wormwood powder short fiber; the refined filtration layer is an alkali-free glass fiber layer with acrylic copolymers distributed on the surface. The composite filter paper hashigher air permeability and ash accommodating rate, good water resistance and weather fastness and long service life and is stable at high temperature.

Description

technical field [0001] The invention relates to the technical field of automobile filters, in particular to a composite filter paper for filters and a preparation method thereof. Background technique [0002] The filter is one of the key components to ensure the durability and reliability of the engine. The engine has three filters of air, oil and fuel, generally called "three filters", plus the air conditioning filter, commonly known as "four filters", which are respectively responsible for the lubrication system, the medium of the combustion system, the engine intake system, and the cabin. Filtration of the air circulation system. The air filter is mainly used in pneumatic machinery, internal combustion machinery and other fields. Its function is to provide clean air for these mechanical equipment, so as to prevent these mechanical equipment from inhaling air with impurity particles during work and increasing the probability of abrasion and damage. Automobile engines are...

Claims

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Application Information

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IPC IPC(8): D21H27/08D21H27/30D21H15/10D21H15/06D21H15/12D21H13/50D21H17/26D21H17/67D21H17/11D21H17/37D21H13/40D21H13/24D21H13/22D01F2/00D01F1/10B32B29/00
CPCB32B29/005B32B2307/558B32B2307/724B32B2307/73D01F1/10D01F2/00D21H13/22D21H13/24D21H13/40D21H13/50D21H15/06D21H15/10D21H15/12D21H17/11D21H17/26D21H17/37D21H17/675D21H27/08D21H27/30
Inventor 杨广博莫基
Owner 佛山市豹王滤芯制造有限公司
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