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Medical efficient bacterium blocking filter material and preparation method thereof

A filter material and high-efficiency technology, applied in separation methods, chemical instruments and methods, filtration and separation, etc., can solve the problems of poor barrier effect, increased risk of cross-infection of medical staff by bacteria, and complicated procedures.

Active Publication Date: 2011-02-16
南通丽洋洁净材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional production of barrier filter materials for medical use often adopts the post-finishing process of the formed materials, the process is complicated and the barrier effect is poor.
It does not play a role in health protection for medical staff, especially for bacteria, patient blood, patient wound cleaning liquid, oral droplets, and virus transmission, which increases the risk of cross-infection of medical staff by bacteria

Method used

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  • Medical efficient bacterium blocking filter material and preparation method thereof
  • Medical efficient bacterium blocking filter material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The melted polyolefin polymer particles with a high melt index of 800 are continuously transported to a spinning die through a metering pump under the action of a continuous DC high-voltage electric field. The electric field voltage is 100kv, and the spinning die is a In the linear direction, there are spinneret holes linearly arranged at an interval of 0.3 mm, the diameter of the spinneret holes is 0.25 mm, and the lateral length of the spinneret die opening is greater than 20 cm. There is a low pressure at 3 cm from the outlet of the spinneret die

[0024] Plasma emission device, when the fiber ejected by the melt from the die mouth is plasma-treated, it falls on the collection device at a distance of 20 cm from the spinning die mouth and cools down and then takes shape in the winding device. Quantitative at 20g / m 2 .

[0025] Test its barrier performance as follows:

[0026] Sample number 1# 2# 3#

[0027] Quantitative (g / M 2 ) 20.1 19.5 20.8

[0028] Thickness...

Embodiment 2

[0036] The melted polyolefin polymer particles with a high melt index of 800 are continuously transported to a spinning die through a metering pump under the action of a continuous DC high-voltage electric field. The electric field voltage is 100kv. In the linear direction, there are spinneret holes linearly arranged at an interval of 0.3 mm, the diameter of the spinneret holes is 0.25 mm, and the lateral length of the spinneret die opening is greater than 20 cm. There is a low-pressure plasma emission device at a distance of 3 cm from the exit of the spinning die. When the fibers ejected from the die are treated with plasma, they fall on the collecting device at a distance of 20 cm from the spinning die and cool down. Formed in the winding device. Quantitative at 25g / m 2 .

[0037] Test its barrier performance as follows:

[0038] Sample number 4# 5# 6#

[0039] Quantitative (g / M 2 ) 24.6 25.3 25.5

[0040] Thickness (mm) 0.8 0.79 0.9

[0041] Transverse breaking stren...

Embodiment 3

[0048] The molten polyolefin polymer particles with a high melt index of 800 are continuously transported to a spinning die through a metering pump under the action of a continuous DC high-voltage electric field. The electric field voltage is 100kv, and the spinning die is equipped with There is a spinneret hole linearly arranged at an interval of 0.3 mm, the diameter of the spinneret hole is 0.25 mm, and the lateral length of the spinneret die is greater than 20 cm. There is a low-pressure plasma emission device at a distance of 3 cm from the exit of the spinning die. When the fibers ejected from the die are treated with plasma, they fall on the collecting device at a distance of 20 cm from the spinning die and cool down. Formed in the winding device. Quantitative at 28g / m 2 .

[0049] Test its barrier performance as follows:

[0050] Sample number 7# 8# 9#

[0051] Quantitative (g / M 2 ) 28.1 27.8 28.8

[0052] Thickness (mm) 1.2 1.1 1.3

[0053] Transverse breaking stre...

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Abstract

The invention discloses a medical efficient bacterium blocking filter material which is prepared by weaving gathered fibers. The invention also discloses a preparation method of the medical efficient bacterium blocking filter material, which comprises the following steps of: melting polyene macromolecular particles with 800-1500 high melt index to obtain a melt, and continuously delivering the melt to a linearly arranged porous fiber jet die orifice under the action of a DC high voltage electric field through a metering pump; leading the jet fibers in a molten state to a receiving device under the action of plasmas through a plasma launch device after leaving the die orifice; and collecting the fibers by a negative pressure forming device, and sticking the gathered fibers to obtain the medical efficient bacterium blocking filter material. The material has the effect of isolating bacteria; meanwhile, because the material is an electric material with polarity, the material has strong absorption performance on bacteria. The material can be used for manufacturing isolation and filter materials in various virus protection isolation cloths, protective masks, protective devices and virus isolation ventilation systems.

Description

technical field [0001] The invention relates to a medical high-efficiency bacteria-blocking filter material and a preparation method thereof. Background technique [0002] The traditional production of barrier filter materials for medical use often adopts post-processing of the formed materials, which has complicated procedures and poor barrier effect. It has no health protection effect on medical staff, especially the transmission of bacteria, patient blood, patient wound cleaning liquid, oral droplets, and viruses, which increases the risk of cross-infection of bacteria by medical staff. Contents of the invention [0003] Purpose of the invention: One purpose of the present invention is to provide a medical high-efficiency bacterial barrier filter material. [0004] Another object of the present invention is to provide a preparation method of the medical high-efficiency bacteria-blocking filter material, which solves the unrealizable preparation method of the prior art....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/16D01D5/00
Inventor 尤祥银杨卫平
Owner 南通丽洋洁净材料有限公司
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