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Nano bypass filter paper and preparing method thereof

A nano-filter paper technology, applied in the field of filter paper, can solve problems such as low filtration efficiency, high tightness, and short life

Inactive Publication Date: 2016-07-13
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, the existing bypass filter paper is a paper filter layer made of ordinary wood pulp as the main component. However, due to the finer fibers of ordinary wood pulp and high compactness, the bypass filter paper made generally has tightness. High, low filtration efficiency, short life, thick paper, etc.

Method used

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  • Nano bypass filter paper and preparing method thereof
  • Nano bypass filter paper and preparing method thereof
  • Nano bypass filter paper and preparing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0030] A nano bypass filter paper, comprising base paper and melt-blown nonwoven fabric, the base paper, in parts by weight, includes 20 parts of bamboo pulp, 30 parts of asparagus pulp, 30 parts of coniferous wood pulp, and 20 parts of gypsum fiber , 20 parts of glass fiber, 1 part of fibrous binder, 0.2 part of lignin, 2.8 parts of nanocellulose crystals, 2.5 parts of dispersant, and the melt-blown nonwoven fabric, by weight parts, includes polypropylene 80 Parts, 40 parts of polypropylene carbonate, 20 parts of polyethylene glycol, 30 parts of melamine formaldehyde resin.

[0031] The fibrous binder is water-soluble PVA fiber; the dispersant includes anionic polyacrylamide; the polypropylene includes polypropylene plastic master batches and polypropylene modified low-melting plastic master batches, and the described The mass ratio of polypropylene plastic masterbatch to polypropylene modified low melting point plastic masterbatch is 6:4.

[0032] The preparation method of ...

Embodiment 2

[0040] A nano bypass filter paper, comprising base paper and melt-blown nonwoven fabric, the base paper, in parts by weight, includes 40 parts of bamboo pulp, 60 parts of asparagus pulp, 40 parts of coniferous wood pulp, and 20 parts of gypsum fiber , 50 parts of glass fiber, 5 parts of fibrous binder, 3 parts of lignin, 2 parts of nanocellulose crystals, 0.5 part of dispersant, and the melt-blown nonwoven fabric, by weight parts, includes 30 parts of polypropylene Parts, 40 parts of polypropylene carbonate, 30 parts of polyethylene glycol, 10 parts of melamine formaldehyde resin.

[0041] The fibrous binder is Weirong fiber; the dispersant includes polyoxyethylene; the polypropylene includes polypropylene plastic masterbatch and polypropylene modified low-melting plastic masterbatch, and the polypropylene The mass ratio of plastic masterbatch to polypropylene modified low melting point plastic masterbatch is 6:4.

[0042] The preparation method of this nano bypass filter pap...

Embodiment 3

[0050] A nano bypass filter paper, comprising base paper and melt-blown nonwoven fabric, said base paper, in parts by weight, includes 50 parts of bamboo pulp, 50 parts of asparagus pulp, 40 parts of coniferous wood pulp, and 25 parts of gypsum fiber , 40 parts of glass fiber, 10 parts of fibrous binder, 2 parts of lignin, 1 part of nanocellulose crystal, 1 part of dispersant, and the melt-blown nonwoven fabric, in parts by weight, includes polypropylene 60 Parts, 30 parts of polypropylene carbonate, 20 parts of polyethylene glycol, 30 parts of melamine formaldehyde resin.

[0051] The fibrous binder is low-melting polyester; the dispersant includes anionic polyacrylamide; the polypropylene includes polypropylene plastic masterbatch and polypropylene modified low-melting plastic masterbatch, and the The mass ratio of polypropylene plastic masterbatch to polypropylene modified low melting point plastic masterbatch is 6:4.

[0052] The preparation method of this nano bypass fil...

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Abstract

The invention provides nano bypass filter paper.The nano bypass filter paper comprises raw paper and melt-blown non-woven fabric, wherein the raw paper comprises bamboo pulp, herba junci setchuensis pulp, softwood pulp, gypsum fibers, glass fibers, a fibrous binding agent, lignin, nano-crystalline cellulose and a dispersing agent; the melt-blown non-woven fabric comprises polypropylene, polypropylene carbonate, polyethylene glycol and melamino-formaldehyde.All the pulp is treated through an ultrahigh-pressure microjet nano dispersion machine to obtain cellulose nanofibers, and the cellulose nanofibers are harder and lighter than iron and can realize paper sheet light weight when used in the filter paper industry.

Description

technical field [0001] The invention relates to the technical field of filter paper, in particular to a nano bypass filter paper and a preparation method thereof. Background technique [0002] Bypass filter paper is an important component of the oil filter, which is related to the overall performance of the oil filter. However, the existing bypass filter paper is a paper filter layer made of ordinary wood pulp as the main component. However, due to the finer fibers of ordinary wood pulp and high compactness, the bypass filter paper made generally has tightness. High, low filtration efficiency, short life, heavy paper and other shortcomings. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the present invention provides a nano-bypass filter paper, which not only has a high filtering effect, but also has the characteristics of oil, water, high temperature, environmental protection and light weight of the paper. [0004] For realizing the purp...

Claims

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Application Information

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IPC IPC(8): D21H27/08D21H11/12D21H15/02D21H13/40D21H21/08D21H21/14
CPCD21H27/08D21H11/12D21H13/40D21H15/02D21H21/08D21H21/14
Inventor 吴安波
Owner 杭州特种纸业有限公司
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