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A kind of multi-layer spunmelt electret filter material containing energizer and preparation method thereof

A filter material and energy additive technology, applied in the field of multi-layer spunmelt electret filter material and its preparation, can solve the problems of filter material electret difficulty, low product filtration effect, and large filter resistance, so as to improve electrostatic adsorption , Improve the electret effect, low filter resistance effect

Active Publication Date: 2018-01-19
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a multi-layer spunmelt electret filter material containing energizing additives and a preparation method thereof. The present invention solves the difficulty of electret filter materials made in the prior art; The filter resistance is too large, and the charge escapes quickly, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046]Add the energy-enhancing agent and polypropylene into the two feeding hoppers of the granulator respectively, melt and extrude at a temperature of 190°C, cool in a water bath, cut into granules, and then dry to obtain modified polypropylene. The mass ratio of the energizer to the modified polypropylene is 20%, and the energizer is a mixture of zinc stearate, barium stearate and silicon nitride, wherein zinc stearate, barium stearate and nitride The mass ratio of silicon is 50%, 30% and 20% respectively;

[0047] Mix modified polypropylene and conventional polypropylene, the mass ratio of modified polypropylene to the mixture is 30%, feed the mixed raw materials into conventional chemical fiber equipment for spinning, and the length of spinning is 60 mm, and the fineness is 2 denier The polypropylene short fiber that contains energy-enhancing additive; The polypropylene short fiber that will contain energy-enhancing additive and commercially available length is 64 millime...

Embodiment 2

[0052] Add the energy-enhancing agent and polypropylene into the two feeding hoppers of the granulator respectively, melt and extrude at a temperature of 190°C, cool in a water bath, cut into granules, and then dry to obtain modified polypropylene. The mass ratio of the energizer to the modified polypropylene is 20%, and the energizer is a mixture of zinc stearate, barium stearate and silicon nitride, wherein zinc stearate, barium stearate and nitride The mass ratio of silicon is 50%, 30% and 20% respectively;

[0053] Mix modified polypropylene and conventional polypropylene, the mass ratio of modified polypropylene to the mixture is 30%, feed the mixed raw materials into conventional chemical fiber equipment for spinning, and the length of spinning is 55 mm, and the fineness is 2 denier The polypropylene short fiber that contains energy-enhancing additive; The polypropylene short fiber that will contain energy-enhancing additive and commercially available length is 64 millim...

Embodiment 3

[0058] Add the energy-enhancing agent and polypropylene into the two feeding hoppers of the granulator respectively, melt and extrude at a temperature of 190°C, cool in a water bath, cut into granules, and then dry to obtain modified polypropylene. The mass ratio of the energizer to the modified polypropylene is 20%, and the energizer is a mixture of zinc stearate, barium stearate and silicon nitride, wherein zinc stearate, barium stearate and nitride The mass ratio of silicon is 50%, 30% and 20% respectively;

[0059] Mix modified polypropylene and conventional polypropylene, the mass ratio of modified polypropylene to the mixture is 30%, feed the mixed raw materials into conventional chemical fiber equipment for spinning, and the length of spinning is 50 mm, and the fineness is 2 denier The polypropylene staple fiber that contains energizer; The polypropylene staple fiber that contains energizer and commercially available length is 51 millimeters, and fineness is 1.5 denier ...

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Abstract

The invention relates to a multilayered sun-melt electret filtering material containing an energy increasing auxiliary agent and a preparation method thereof. The raw material of the filtering material comprises a plurality of layers of fiber nets; the plurality of layers of fiber nets form a stacked structure and sequentially comprise a spun-bonded fiber net and a pre-needled fiber net or the spun-bonded fiber net, the pre-needled fiber net and the spun-bonded fiber net. The preparation method comprises: after stacking the plurality of layers of fiber nets, carrying out needling reinforcing treatment, baking treatment and corona electret treatment in sequence. The energy increasing auxiliary agent and a specific composite structure are added into the material, so that the product disclosed by the invention has the characteristics of high filtering efficiency, low filtering resistance, long service life and the like.

Description

technical field [0001] The invention belongs to the field of filter materials and preparation thereof, in particular to a multi-layer spunmelt electret filter material containing energy-enhancing additives and a preparation method thereof. Background technique [0002] The rapid development of modern industry has made my country's economy develop rapidly and the living standards of the people have been greatly improved, but the development of industry has brought us serious air pollution problems. The air contains a large amount of harmful gases and fine suspended particles, which cause serious harm to human respiratory tract, cardiovascular system and central nervous system, and directly threaten human health. Therefore, reducing harmful substances in the air is crucial for environmental protection and safeguarding human health. At present, the most economical and effective air filtration method is fiber filtration technology. [0003] Due to the structure of the three-di...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D39/14B01D39/16B01D39/20B32B27/02B32B27/12B32B27/28B32B27/32
CPCB01D39/14B01D39/16B01D39/20B32B5/26B32B2250/24B32B2262/0253B32B2307/552
Inventor 靳向煜张星张海峰刘金鑫刘妙峥吴海波王荣武王洪黄晨刘嘉炜
Owner DONGHUA UNIV
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