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Porous organic filter and preparation method thereof

A filter and organic technology, applied in the field of porous organic filter and its preparation, can solve the problems of complex process, pollution, large quantity, etc., and achieve the effect of simple process, simplified process and reduced dosage

Active Publication Date: 2019-01-18
XIANNING NANBO PHOTOELECTRIC GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can produce microporous products with small thickness and small pore size, but a large amount of diluent is required in the production process. Diluents generally include solvents such as paraffin, diphenyl ether, and decahydronaphthalene, which easily cause pollution problems
The melt stretching method also requires a diluent, and the process is more complicated

Method used

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  • Porous organic filter and preparation method thereof
  • Porous organic filter and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 1. Preparation of Modifier Solution

[0030] According to the mass ratio, deionized water: WD-20 silicone coupling agent = 20:1 for mixing. Stir on a magnetic stirrer for about 1 h. The obtained modifier solution was used for later use.

[0031] 2. Modification of 400 mesh UHMWPE powder

[0032] Mix according to the ratio of 400-mesh UHMWPE powder:modifier solution=5:1, and stir with a mixer for more than 0.5h to ensure that the 400-mesh UHMWPE powder can be completely wrapped by the silicone coupling agent solution. After the stirring is completed, the modified UHMWPE powder is dried in an oven at 70°C for 5 hours. A completely dried modified UHMWPE powder is obtained.

[0033] 3. Mold pretreatment

[0034] Paste a layer of polytetrafluoroethylene film with a thickness of less than 0.3mm inside the Fe mold to act as a release agent and a release agent to avoid the impact of the metal mold on the performance of the UHMWPE powder. After pretreatment, the molds are ...

Embodiment 2

[0042] 1. Preparation of modifier solution

[0043] According to the mass ratio, deionized water: WD-60 silicone coupling agent = 50: 1 for mixing. Stir on a magnetic stirrer for about 1 h. The obtained modifier solution was used for later use.

[0044] 2. Modification of 400 mesh UHMWPE powder

[0045] Mix according to the ratio of 400-mesh UHMWPE powder:modifier solution=4:1, and stir with a mixer for more than 0.5h to ensure that the 400-mesh UHMWPE powder can be completely covered by the silicone coupling agent solution. After the stirring is completed, the modified UHMWPE powder is dried in an oven at 70°C for 5 hours. A completely dried modified UHMWPE powder is obtained.

[0046] 3. Mold pretreatment

[0047] Paste a layer of polytetrafluoroethylene film with a thickness of less than 0.3mm inside the Fe mold to act as a release agent and a release agent to avoid the impact of the metal mold on the performance of the UHMWPE powder. After pretreatment, the molds are...

Embodiment 3

[0055] 1. Preparation of modifier solution

[0056] According to the mass ratio, deionized water: WD-70 silicone coupling agent = 40: 1 for mixing. Stir on a magnetic stirrer for about 1 h. The obtained modifier solution was used for later use.

[0057] 2. Modification of 400 mesh UHMWPE powder

[0058] Mix according to the ratio of 400-mesh UHMWPE powder:modifier solution=6:1, and stir with a mixer for more than 0.5h to ensure that the 400-mesh UHMWPE powder can be completely wrapped by the silicone coupling agent solution. After the stirring is completed, the modified UHMWPE powder is dried in an oven at 70°C for 5 hours. A completely dried modified UHMWPE powder is obtained.

[0059] 3. Mold pretreatment

[0060] Paste a layer of polytetrafluoroethylene film with a thickness of less than 0.3mm inside the Fe mold to act as a release agent and a release agent to avoid the impact of the metal mold on the performance of the UHMWPE powder. After pretreatment, the molds are...

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Abstract

The invention discloses a porous organic filter and a preparation method thereof. The porous organic filter comprises two flat plates of which upper parts are provided with grooves, wherein the two flat plates are oppositely spliced; a spliced groove is positioned between the two flat plates; four sides of the two flat plates are packaged; a groove part is embedded into an exhaust pipe; when the grooves of the flat plate are placed upward, ultra-high molecular weight polyethylene with different particle sizes is sequentially distributed with powder to form a microporous filtration layer, a mesoporous filter layer and a macroporous filter layer; the grooves are positioned in the maicroporous filtration layer. The preparation method comprises the following steps: carrying out modifying treatment on the ultra-high molecular weight polyethylene of the microporous filtration layer in advance; then distributing powder in a die by using the ultra-high molecular weight polyethylene with the different particle sizes according to the needs; carrying out heat treatment and then demolding to obtain organic plates with grooves; finally, packaging the two plates with the grooves to form a wholeand embedding the whole into the exhaust pipe to obtain a suction filtration type filter. The filter disclosed by the invention can intercept particles with the sizes of 5 mum or above and has a greater flux.

Description

technical field [0001] The invention relates to the field of organic microporous filtration, in particular to a porous organic filter and a preparation method thereof. Background technique [0002] With the development of society, the types, demand and output of glass have been increasing year by year, among which the demand and output of electronic glass have the fastest growth. However, in the production process of electronic glass, various waste water will be generated directly or indirectly, among which the glass grinding waste water is the most processed. Grinding wastewater mainly includes glass shavings, grinding wheel shavings, cutting fluid and water. It can be seen from the process characteristics that the particle size of the solid phase particles in the grinding wastewater is between 5 and 250 µm. The existing process for treating grinding wastewater mainly relies on deposition, and the purification speed is slow and the effect is not good. [0003] The organi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D71/26B01D67/00B01D61/14C02F1/44C02F103/12
CPCB01D61/147B01D67/0002B01D67/0004B01D71/26C02F1/444C02F2103/12
Inventor 熊圣安贺有乐宋占财王洪
Owner XIANNING NANBO PHOTOELECTRIC GLASS CO LTD
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