Preparation method of high-strength fluid separation medium

A fluid separation, high-strength technology, applied in the field of filter materials, can solve the problems of reducing the service life of the filter medium, insufficient strength of the filter medium, increasing the energy consumption of the filter equipment, etc. Effect

Active Publication Date: 2022-04-29
CHONGQING ZAISHENG TECH CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the current filter media generally has the problem of insufficient strength, which cannot meet various application conditions.
There are studies to increase the strength by compounding or adding adhesives w

Method used

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  • Preparation method of high-strength fluid separation medium
  • Preparation method of high-strength fluid separation medium
  • Preparation method of high-strength fluid separation medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1 prepares high strength fluid separation medium

[0042] method one:

[0043] 1) get the precursor raw material component of hyperbranched polymer and mix to obtain blend, the precursor raw material of hyperbranched polymer comprises following components:

[0044] A. Skeleton component: one or both selected from aliphatic hyperbranched polyester, aliphatic hyperbranched polyamide, aliphatic hyperbranched polyepoxy resin, aliphatic hyperbranched polyurethane, and hyperbranched polycarbonate;

[0045] B. Resin monomer component: selected from acrylamide, N-methylolacrylamide, glycidyl acrylate, glycidyl methacrylate, styrene, hydroxyethyl methacrylate, acrylic acid, methacrylic acid, One or more of hydroxyethyl acrylate, acrylate, methyl acrylate, methyl methacrylate, butyl acrylate, isooctyl acrylate, and ethyl acrylate.

[0046] C. Reaction auxiliary agent: one or more selected from azobisisobutyronitrile, dibenzoyl peroxide, quaternary ammonium salt of te...

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Abstract

The invention discloses a preparation method of a high-strength fluid separation medium. The preparation method comprises the following steps: 1) mixing precursor raw material components of a hyperbranched polymer to obtain a blend; 2) mixing glass microfibers and other fibers, and uniformly dispersing; (3) taking the fibers dispersed in the step (2), and forming a multi-fiber-layer material of which the pore size is changed from top to bottom by adopting a one-time forming deposition mode or a multi-time forming deposition mode; (4) applying the hyperbranched polymer precursor component blend aqueous solution obtained in the step (1) into the multi-fiber-layer material obtained in the step (3) in a spraying or soaking or capillary migration manner; and 5) crosslinking the material obtained in the step 4) at a high temperature of 120-250 DEG C to form a final product, namely the high-strength fluid separation medium. According to the fluid separation medium prepared by the method disclosed by the invention, three indexes, namely air permeability, transmittance and tensile strength, are balanced, the strength of filter paper is improved while the air permeability is not reduced and the transmittance is not influenced, and the service life of a product is prolonged.

Description

technical field [0001] The invention relates to the technical field of filter materials, in particular to a preparation method of a high-strength fluid separation medium. Background technique [0002] At present, fluid filtration and separation media are widely used in all walks of life. Usually, fluid filtration and separation media are composed of fiber nets. To achieve the purpose of separation or purification. Fluid filtration separation media is currently widely used in various filter elements or filters. [0003] However, the current filter media generally have the problem of insufficient strength and cannot meet various application conditions. There are studies to improve the strength by compounding or adding adhesives without affecting the transmittance, but this method will lead to a decrease in air flow, which will increase the energy consumption of the filter equipment during operation and reduce the service life of the filter medium. [0004] Therefore, there ...

Claims

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Application Information

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IPC IPC(8): B01D39/18C08L33/08C08L33/12C08L33/14C08L67/00C08L83/04C08K5/54
CPCB01D39/18C08L33/08C08L33/12C08L33/068C08L67/00C08L83/04C08K5/54
Inventor 曾影郭茂
Owner CHONGQING ZAISHENG TECH CORP
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