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Drying method of polyglycolide warp knitted support net for artificial skin

A technology of polyglycolide and artificial skin, which is applied in the direction of drying solid materials, heating to dry solid materials, and non-heating to dry solid materials, etc., which can solve the problems of loss of mechanical properties and achieve the effect of maintaining tensile fracture strength

Active Publication Date: 2022-06-21
HAIXI NEW TEXTILE MATERIAL OF JINJIANG IND TECH ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With high temperature treatment, the moisture and solvent contained in polyglycolide warp knitted support net can be completely removed, but high temperature and oxygen and water vapor in the air can easily lead to rapid degradation of polyglycolide, and its mechanical properties are seriously lost

Method used

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  • Drying method of polyglycolide warp knitted support net for artificial skin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The present embodiment provides a drying method for a polyglycolide warp-knitted support web for artificial skin, which specifically includes pre-drying, deep drying and fabric stress relaxation in sequence.

[0026] The pre-drying process is: placing the cleaned and dried polyglycolide warp knitted support mesh in a vacuum drying box A, the vacuum drying box A is connected with a water circulation vacuum pump, the temperature of the vacuum drying box A is set to 25 ° C, and the water circulation is turned on at the same time. The vacuum pump continues to run, so that the polyglycolide warp knitted support mesh is dried for 1 hour under the condition of vacuum degree of 390Pa, then the water circulation vacuum pump is turned off, and air is slowly introduced to make the vacuum drying box A return to normal pressure.

[0027] The steps of the deep drying process are:

[0028] (1) Take out the polyglycolide warp-knitted support net from vacuum drying oven A, place it in v...

Embodiment 2

[0036] The present embodiment provides a drying method for a polyglycolide warp-knitted support web for artificial skin, which specifically includes pre-drying, deep drying and fabric stress relaxation in sequence.

[0037] The pre-drying process is: placing the cleaned and dried polyglycolide warp knitted support net in a vacuum drying box A, the vacuum drying box A is connected with a water circulation vacuum pump, the temperature of the vacuum drying box A is set to 30 ° C, and the water circulation is turned on at the same time. The vacuum pump continues to run, so that the polyglycolide warp knitted support mesh is dried for 1.5 hours under the condition of vacuum degree of 350Pa, then the water circulation vacuum pump is turned off, and air is slowly introduced to make the vacuum drying box A return to normal pressure.

[0038] The steps of the deep drying process are:

[0039] (1) Take out the polyglycolide warp-knitted support net from the vacuum drying oven A, and pla...

Embodiment 3

[0047] The present embodiment provides a drying method for a polyglycolide warp-knitted support web for artificial skin, which specifically includes pre-drying, deep drying and fabric stress relaxation in sequence.

[0048] The pre-drying process is as follows: place the cleaned and dried polyglycolide warp knitted support mesh in a vacuum drying box A, the vacuum drying box A is connected with a water circulation vacuum pump, the temperature of the vacuum drying box A is set to 28 ° C, and the water circulation is turned on at the same time. The vacuum pump continues to run, so that the polyglycolide warp knitted support mesh is dried for 1.8 hours under the condition of vacuum degree of 380Pa, then the water circulation vacuum pump is turned off, and air is slowly introduced to make the vacuum drying box A return to normal pressure.

[0049] The steps of the deep drying process are:

[0050] (1) The polyglycolide warp-knitted support net is taken out from the vacuum drying b...

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Abstract

The invention relates to a drying method for a polyglycolide warp-knitted support net for artificial skin, specifically performing pre-drying, deep drying and fabric stress relaxation successively. The present invention can completely remove the moisture in the polyglycolide warp-knitted support net and the solvent remaining in the cleaning process, and can effectively maintain the properties of the polyglycolide warp-knitted support net such as tensile breaking strength, pore diameter, and grammage, It is of great significance for the application of polyglycolide warp knitted support net in the field of medical artificial skin.

Description

technical field [0001] The invention belongs to the technical field of new biomedical textile materials, and in particular relates to a drying method for a polyglycolide warp-knitted support net for artificial skin. Background technique [0002] Polyglycolide warp knitted support net is prepared by polyglycolide yarn through the processes of winding, warping, weaving, shaping, cleaning, etc., and has broad application prospects in medical artificial skin and other fields. However, after the polyglycolide warp knitted support net is cleaned, the residual moisture (mainly including free water and bound water) and solvent (mainly the solvent used for cleaning the oil and dust on the polyglycolide warp knitted support net) Harder to remove completely. Residual moisture and solvent can accelerate the degradation of the polyglycolide warp knitted support mesh, which has a great impact on its mechanical properties and application in artificial skin. With high temperature treatmen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F26B1/00F26B3/04F26B5/04F26B7/00
CPCF26B1/00F26B3/04F26B5/045F26B7/00F26B21/14F26B13/00
Inventor 郑小佳郑云波朱晓鑫吴维炜
Owner HAIXI NEW TEXTILE MATERIAL OF JINJIANG IND TECH ACAD
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