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Multifunctional meltblown and filter material and its manufacturing method

A melt-blown filter element, multi-functional technology, applied in chemical instruments and methods, separation methods, filtration and separation, etc., can solve the problem of difficulty in uniform distribution of silver-based nano-antibacterial powder, unstable antibacterial effect, and increased production costs, etc. problems, to achieve the effect of good antibacterial performance, good stability and low production cost

Inactive Publication Date: 2008-01-16
上海久洁科技有限公司 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In its production process, high-voltage injection is used, which increases the production cost, and the electrostatic instability of the product caused by the injection brings inconvenience to use. Silver-based nano-antibacterial powder is difficult to achieve in this manufacturing method. Uniform distribution may cause instability of antibacterial effect
In short, the functions of the above-mentioned filter materials and filter elements are only antibacterial and filtering.

Method used

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  • Multifunctional meltblown and filter material and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Antibacterial, chlorine removal filter

[0023] Get 15KG of CYK-302 inorganic silver-carried antibacterial superfine micropowder (purchasing) with an average particle diameter≤0.5 micron, 84KG of fiber-grade polypropylene pellets produced by Shanghai Jinshan Petrochemical, and 1KG of dispersant, with a twin-screw extruder at 180 Mix and melt granulate at ℃ to make antibacterial base material granules.

[0024] Take 5KG of the above-mentioned antibacterial base material granules, 95KG of fiber-grade polypropylene, and 10KG of fine calcium sulfite powder containing one crystal water, and pulverize it with a jet mill until the average particle size is ≤0.5 microns, and weigh it according to the process flow in the attached drawing. Good antibacterial base material granules are mixed with fiber-grade resin granules, placed in melt-blown equipment, and fine calcium sulfite powder is loaded into a device with fine holes at the same time; when the antibacterial base material g...

Embodiment 2

[0027] Antibacterial, activated filter

[0028] Take 20KG of CYK-302 inorganic silver-loaded antibacterial ultrafine powder with an average particle size of ≤0.5 microns, and 80KG of fiber-grade polypropylene pellets produced by Shanghai Jinshan Petrochemical Co., Ltd., and use a twin-screw extruder to melt and granulate at 180°C. Antibacterial base pellets.

[0029] Get antibacterial base material granule 5KG, fiber grade polypropylene 95KG, get high-quality anion powder 6KG, pulverize to average particle size and be no more than 0.5 micron, its manufacturing process is the same as embodiment 1, just receive molding with filter element receiver at last, make antibacterial activation filter material. The filtration accuracy of the filter material is 1 micron, and its antibacterial performance is good. After testing by the Shanghai Institute of Industrial Microbiology according to the GB15979-2002 standard, the results show that the antibacterial rate of Escherichia coli is >9...

Embodiment 3

[0031] Adsorption, removal of heavy metal ions, antibacterial filter

[0032] Take 10KG of CYK-302 inorganic silver-loaded antibacterial ultrafine powder with an average particle size of ≤0.5 microns, 89KG of fiber-grade polypropylene pellets produced by Shanghai Jinshan Petrochemical, and 1KG of dispersant, and mix and melt at 180°C with a twin-screw extruder Granulation to make antibacterial base material granules.

[0033] Get antibacterial base-material particle 10KG, fiber-grade polypropylene 90KG, active carbon 4KG, the artificial zeolite 3KG that particle diameter is no more than 0.5 microns, active carbon and zeolite are fully mixed, are placed in special-purpose device, and manufacturing process is identical with embodiment 1, Made into a filter element, the filter element is not only antibacterial, but also has the function of absorbing and removing metal ions such as iron, copper, lead, and zinc.

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Abstract

The invention discloses a multi-functional melt-blown filter element and the filter material as well as the preparation process, the composition and the ratio (weight percentage) of the filter element and the filter material are: five to ten percent of antibacterial base material particles and ninety to ninety five percent of fiber-grade resin particles are firstly mixed together, and then functional ultrafine powders are added for accounting for five to twenty percent of the final weight of the filter materials or the filter elements. The preparation process is that: the antibacterial base material particles and the fiber-grade resin particles are mixed according to the certain ratio, meanwhile, the functional ultrafine powders are put into the device with fine holes; when the antibacterial base material particles and the fiber-grade resin particles are melt-blown after being mixed evenly, the functional ultrafine powders are sprayed on the fine fiber of the molten state under the heavy pressure air by the plurality of fine holes on the special equipment, and are received by a filter material receiver or a filter element receiver and become shaping. The multi-functional filter material and the filter element of the invention has advantages of multi-functionality, antibacterial property, persistence and good using stability, the preparation process of the invention has advantages of simple art and low production cost.

Description

technical field [0001] The present invention relates to multifunctional filter materials for water purification and other fluid treatment systems, and methods for their manufacture. Background technique [0002] Melt-blown nonwovens are a manufacturing method that obtains extremely fine fibers by direct drawing, and forms a three-dimensional labyrinth structure by self-fusion and entanglement. Compared with nonwovens carded into a web by traditional weaving methods, it has a larger ratio Surface, higher porosity and finer pore size, its excellent filterability is better than ordinary filter materials. At present, melt-blown nonwovens can be designed into a variety of filter materials in the form of filter cloth, cylindrical filter elements, filter bags, etc., for the filtration industry. [0003] But at present, the function of various forms of filter materials is only to filter, which often cannot meet the requirements of use, especially the filter element of the water pur...

Claims

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Application Information

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IPC IPC(8): B01D39/16B29C67/20B29L31/14
Inventor 吴则嘉陈彩通张林春
Owner 上海久洁科技有限公司
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