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Filtering element capable of resisting high temperature and high pressure and manufacturing method of filtering element

A manufacturing method and filter element technology, which is applied in the field of purification filter elements, can solve the problems of low filtration efficiency and unreachable, and achieve the effects of low consumption of consumables, low cost, and simple and reasonable production process

Active Publication Date: 2012-06-27
HANGZHOU DEEFINE FILTRATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the backward production process and related technical barriers, the existing filter elements cannot meet the relevant requirements. Generally, the domestic melt-blown filter element has a maximum pressure resistance of 3 Bar at 20°C and a maximum pressure resistance of only 1.8 at 60°C. Bar, and the filtration efficiency is low, generally 30%-50%

Method used

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  • Filtering element capable of resisting high temperature and high pressure and manufacturing method of filtering element
  • Filtering element capable of resisting high temperature and high pressure and manufacturing method of filtering element
  • Filtering element capable of resisting high temperature and high pressure and manufacturing method of filtering element

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Experimental program
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Effect test

Embodiment 1

[0024] Example 1: 10 parts by weight of polyethylene terephthalate (PET) material was dried at 150°C for 6 hours, 100 parts by weight of polypropylene (PP) material and 3 parts by weight of compatibilizer The maleic anhydride grafted polypropylene (PP-g-MAH) material was dried at 100°C for 3 hours. After drying, mix and heat PP, PET, PP-g-MAH to 270°C-285°C, screw mixer speed 150 r / min, mix for about 15 minutes, keep warm at 220°C-240°C, and use the existing spray Melting production equipment spray melting figure 1 , 2 In the tubular shape shown, during the spinning process, due to extrusion and stretching, the dispersed phase PET forms microfibers in the matrix PP. Since the PET microfibers are formed in situ, the dispersion uniformity is good and the interface effect is large. , generally several hundred nanometers in diameter, and even nanofibers can be obtained.

Embodiment 2

[0025] Embodiment 2: the manufacturing method of the present embodiment is the same as that of embodiment 1, and the only difference is the content of raw materials, and the content of each component in the present embodiment is, polypropylene 100 parts by weight, polyethylene terephthalate 6 parts by weight of the ester, and 2 parts by weight of the compatibilizer maleic anhydride grafted polypropylene.

Embodiment 3

[0026] Embodiment 3: the manufacturing method of the present embodiment is the same as that of embodiment 1, and the only difference is the content of raw materials, and the content of each component in the present embodiment is, polypropylene 100 parts by weight, polyethylene terephthalate 15 parts by weight of the ester, and 3 parts by weight of the compatibilizer maleic anhydride grafted polypropylene.

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Abstract

The invention relates to a filtering element capable of resisting high temperature and high pressure and a manufacturing method of the filtering element, in particular to a purifying filtering element applied to a high-precision electronic electroplating industry and other high-precision industries relating to high temperature and high pressure. The filtering element capable of resisting high temperature and high pressure consists of the following raw material components in parts by weight: 100 parts of polypropylene, 5-15 parts of polyethylene terephthalate, and 1-5 parts of maleic anhydride grafted polypropylene. The filtering element capable of resisting high temperature and high pressure, disclosed by the invention, has the advantages of good filtering efficiency, large filtering flux, stable quality and long service life.

Description

technical field [0001] The invention relates to a filter core resistant to high temperature and high pressure and a manufacturing method thereof, in particular to a purification filter core used in the high-precision electronic electroplating industry and other high-precision industries involving high temperature and high pressure. Background technique [0002] In the printed circuit board industry, filtration of related chemical solutions is required in processes such as electroplating, development, etching and film removal. At present, most domestic enterprises adopt activated carbon plus wire-wound two-stage filtration method or ordinary melt-blown filter core single-stage, for example, the Chinese patent with publication number CN201855607U discloses a kind of electroplating solution with nylon polypropylene synthetic plastic bracket The purification filter element is composed of a filter core tube. The inner core of the filter core tube is made of nylon polypropylene sy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/16
Inventor 王文富张凌霄
Owner HANGZHOU DEEFINE FILTRATION TECH
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