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Electrostatic spinning melt blowing composite non-woven material for filtering blood and preparation method of electrostatic spinning melt blowing composite non-woven material

A non-woven material and blood filtration technology, which is applied in the direction of non-woven fabrics, spinning solution preparation, textiles and papermaking, etc., can solve the problems of full utilization of unfavorable filter materials, increase of blood filtration time, and influence on filtration efficiency, and achieve low cost , Low equipment requirements, high blood transfusion safety effect

Inactive Publication Date: 2012-06-20
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 2. Polyester melt-blown nonwoven materials have poor wettability, which is not conducive to the full utilization of filter materials, affects the filtration efficiency and increases the blood filtration time, affecting the actual operation efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] According to the steps of preparation of the spinning solution, electrospinning and vacuum drying of the composite material included in the method for manufacturing the electrospinning melt-blown composite material for blood filtration of the present invention, the following process conditions are adopted:

[0030] (1) Polybutylene terephthalate (PBT) slices were dissolved in TFA and DCM at a volume ratio of 1:1. 2.0 g of PBT chips were weighed and dissolved in a mixture of 5 ml of TFA and 5 ml of DCM to prepare a spinning solution with a mass volume percentage of 20%. After the slices are added to the spinning solvent, a magnetic stirrer is used for stirring. During the stirring process, the solution is sealed with a parafilm, and the stirring time is 12 hours.

[0031] (2) The spinning solution is put into a syringe with a capacity of 10ml, and the distance from the spinning needle to the receiving device is 13cm; the extrusion speed of the spinning solution is 0.8ml / ...

Embodiment 2

[0035] According to the steps of preparation of the spinning solution, electrospinning and vacuum drying of the composite material included in the method for manufacturing the electrospinning melt-blown composite material for blood filtration of the present invention, the following process conditions are adopted:

[0036] (1) Polybutylene terephthalate (PBT) slices were dissolved in TFA and DCM at a volume ratio of 1:1. 2.5g of PBT chips were weighed and dissolved in a mixture of 5ml of TFA and 5ml of DCM to prepare a spinning solution with a mass volume percentage of 25%. After the slices are added to the spinning solvent, a magnetic stirrer is used for stirring. During the stirring process, the solution is sealed with a parafilm, and the stirring time is 12 hours.

[0037] (2) The spinning solution is put into a syringe with a capacity of 10ml. The distance from the spinning needle to the receiving device is 13cm; the extrusion speed of the spinning solution is 1.0ml / h. The ...

Embodiment 3

[0041] According to the steps of preparation of the spinning solution, electrospinning and vacuum drying of the composite material included in the method for manufacturing the electrospinning melt-blown composite material for blood filtration of the present invention, the following process conditions are adopted:

[0042] (1) Polybutylene terephthalate (PBT) slices were dissolved in TFA and DCM at a volume ratio of 1:1. 3.0 g of PBT chips were weighed and dissolved in a mixture of 5 ml of TFA and 5 ml of DCM to prepare a spinning solution with a mass volume percentage of 30%. After the slices are added to the spinning solvent, a magnetic stirrer is used for stirring. During the stirring process, the solution is sealed with a parafilm, and the stirring time is 12 hours.

[0043] (2) The spinning solution is put into a syringe with a capacity of 10ml, and the distance from the spinning needle to the receiving device is 13cm; the extrusion speed of the spinning solution is 1.2ml / ...

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Abstract

The invention relates to an electrostatic spinning melt blowing composite non-woven material for filtering blood and a preparation method of the electrostatic spinning melt blowing composite non-woven material. The electrostatic spinning melt blowing composite non-woven material comprises a melt blowing receiving material and an electrostatic spinning material located on a surface layer; the melt blowing receiving material is made by polyester chips via melt blowing process; and fibers sink down on a receiving plate wrapped by melt blowing materials after being stretched by effects of electric field force so that the electrostatic spinning material is manufactured. The preparation method includes steps: (1) mixing trifluoroacetic acid with dichloromethane, adding the polyester chips into the mixture, and obtaining spinning liquid after dissolving; (2) applying high-voltage positive current on a needle of a syringe, leading a receiving device wrapped with the melt blowing materials to be grounded, carrying out electrostatic spinning by the aid of the spinning liquid obtained from the step (1), and obtaining composite non-woven fabrics; and (3) drying the composite non-woven fabrics in a vacuum manner. The porosity and the specific surface area of the composite non-woven material are high, and removal efficiency of white blood cells in the blood is improved. The preparation method is simple, and is simple and convenient in operation, low in cost and not high in requirements to equipment.

Description

technical field [0001] The invention belongs to the field of composite nonwoven material and its preparation, and in particular relates to an electrospun meltblown composite nonwoven material for blood filtration and a preparation method thereof. Background technique [0002] During the blood transfusion in the hospital, the allogeneic reaction between the white blood cells in the donor's blood and the white blood cell antibodies in the recipient's blood will cause a variety of blood transfusion reactions. Therefore, the blood needs to be filtered before blood transfusion to remove the white blood cells. Studies have shown that compared with centrifugation, washing, and freezing to glycerolization, the filtration method has the highest removal efficiency for white blood cells, and at the same time can efficiently recover red blood cells. Therefore, the filtration method is recognized as the most economical and practical method for white blood cell filtration. . [0003] The...

Claims

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Application Information

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IPC IPC(8): D04H5/08D04H1/435D04H1/728D01D1/02D01D5/00A61M1/34
Inventor 柯勤飞郭莎莎靳向煜王洪李雄
Owner DONGHUA UNIV
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