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Preparation method and application of hydrophilic nano modified filter element

A nano-modification and filter element technology, which is applied in separation methods, chemical instruments and methods, fixed filter element filters, etc., can solve problems affecting the quality of grinding processing, odor and deterioration of working fluid, etc., to ensure the quality of processing accuracy, The effect of eliminating black odor and prolonging the service life

Active Publication Date: 2020-04-17
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The grinding fluid is mixed with impurities such as metal shavings, abrasives, oxides, and grease during use, and some high-end grinding fluids require extremely high precision, and the introduction of impurities will affect the quality of the grinding process; the grinding fluid also contains Oxide and oil stains, with the increase of ambient temperature, grinding fluid temperature and processing cycle time, the working fluid will stink and deteriorate

Method used

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  • Preparation method and application of hydrophilic nano modified filter element
  • Preparation method and application of hydrophilic nano modified filter element
  • Preparation method and application of hydrophilic nano modified filter element

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1 Preparation of hydrophilic nano-modified filter element

[0034] The filter element 8 is obtained by impregnating a polypropylene or nylon bag with Si / Ti nano-modified functional polymer emulsion for 4-6 minutes, and curing and cross-linking at 60-80° C. / 45 minutes.

[0035] The preparation process of the Si / Ti nano-modified functional polymer emulsion is as follows:

[0036] (1) Preparation of modified silica sol: Weigh 100mL of deionized water into the reactor, stir at a low speed, add ammonia water dropwise at room temperature to adjust the pH to 10-14, adjust the speed to 800-1000r / min, add ethyl orthosilicate evenly Mixed solution of 25-30mL ester and 50-70mL ethanol, drop it in 2-3h, keep stirring for 10-13h; drop into the mixed solution (0.6-1.5g 2-acrylamide-2-methylpropanesulfonic acid, acrylamide 0.4-0.8g, deionized water 20mL), stirring continuously for 6-10h to obtain modified silica sol;

[0037] (2) Preparation of composite nano-water disper...

Embodiment 2

[0043] Example 2 Application of hydrophilic nano-modified filter element

[0044] A kind of hydrophilic nano modified filter element grinding fluid purification equipment, such as Figure 1-2 As shown, it includes feed inlet 1, lower barrel 2, auger 3, upper barrel 5, drainage conduit 6, upper discharge main pipe 7, filter element 8, upper cover 9, upper drainage conduit 11, bracket 16 and pressure gauge 17;

[0045] A material cylinder is installed on the support 16; the material cylinder is composed of an upper material cylinder 5 and a lower material cylinder 2 connected to each other, and a connected drainage conduit 6 is provided between the upper material cylinder 5 and the lower material cylinder 2; The upper cover 9 is provided on the top of the barrel 5; the upper cover 9 is also provided with an upper drainage conduit 11 and a pressure gauge 17; a filter element 8 is arranged inside the upper barrel 5, and the filter element 8 is installed on the upper discharge mai...

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Abstract

The invention relates to a preparation method and application of a hydrophilic nano modified filter element and belongs to the technical field of waste liquid treatment and mechanical separation. Thehydrophilic nano modified filter element is obtained by dipping a polypropylene or nylon bag for 4-6 min by adopting a Si / Ti nano modified functional polymer emulsion and carrying out curing and crosslinking treatment for 45 min at 60-80 DEG C. The hydrophilic nano modified filter element prepared by the method provided by the invention has a wide application range and a good filtering effect. A physical method is adopted, and mixed impurities such as metal chips, grinding materials, oxides and grease are separated from grinding fluid through a hydrophilic nano modified filter element technology and a comprehensive integration technology, so that the aims of eliminating black-odor in the processing and production process, ensuring the processing precision and quality, prolonging the service life, saving the cost, recycling resources, saving energy and reducing emission for clean production can be achieved.

Description

technical field [0001] The invention relates to a preparation method and application of a hydrophilic nano-modified filter element, belonging to the technical fields of waste liquid treatment and mechanical separation. Background technique [0002] Machining, wafer processing and other industries are inseparable from grinding fluid, and the commonly used working fluid is water-based emulsion. The grinding fluid is mixed with impurities such as metal shavings, abrasives, oxides, and grease during use, and some high-end grinding fluids require extremely high precision, and the introduction of impurities will affect the quality of the grinding process; the grinding fluid also contains Oxide and oil stains, as the ambient temperature, grinding fluid temperature and processing cycle time increase, the working fluid will stink and deteriorate. How to effectively remove impurities such as metal shavings, oil, and oxides, so that the grinding fluid is clean and recycled for a long ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/79D06M11/46D06M15/356C08F220/20C08F220/06C08F220/14C08F220/18C08F220/58C08F230/08B01D29/11B01D39/08C10M175/00D06M101/20D06M101/34
CPCB01D29/111B01D39/083B01D2239/0421B01D2239/10C08F220/06C08F220/18C08F220/20C08F220/58C08F230/08C10M175/0058D06M11/46D06M11/79D06M15/3568D06M2101/20D06M2101/34
Inventor 姚伯龙强光初强红岩冯晓军范世龙
Owner JIANGNAN UNIV