A kind of biological glass fiber-modified polyester composite dressing and preparation method thereof

A glass fiber, modified polyester technology, applied in glass manufacturing equipment, manufacturing tools, bandages, etc., can solve problems such as unsuitable use, dipping of surrounding skin, slowness, etc., to improve uniformity and strength, and good biocompatibility , the effect of good biological activity

Active Publication Date: 2020-04-03
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these products still have some defects: for example, hydrogel hydrogels are mostly hydrophobic, which is not conducive to cell adhesion and growth, and can easily cause maceration of the surrounding skin; alginate dressings have a lot of exudate and form deep fistulas , it is not easy to remove the residual dressing, and it is not suitable for those who are allergic to alginate; most foam dressings are opaque, it is difficult to observe the state of the wound, and the production cost and process technology are relatively complicated
[0003] The research on dressings based on bioglass is also booming. Taking (publication number 103893811A) as an example, this patent is based on the excellent performance of borate bioglass and the glass dressing prepared after chitosan compounding. Although it has good biological Compatibility, but the chitosan contained in this product needs to be degraded by enzymes in the human body, and it is a relatively slow process that does not match the skin formation process, so the biodegradation performance needs to be improved

Method used

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  • A kind of biological glass fiber-modified polyester composite dressing and preparation method thereof
  • A kind of biological glass fiber-modified polyester composite dressing and preparation method thereof
  • A kind of biological glass fiber-modified polyester composite dressing and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] (1) Preparation of borate glass fiber:

[0067] Prepare the molar ratio of each composition as Na 2 O:K 2 O:MgO:CaO:B 2 o 3 :SiO2 2 :P 2 o 5 :SrO=6:8:8:22:18X:(54-18X):2:6 borate glass fiber, X=1, weigh the ingredients according to Table 1 and mix them evenly, add them into the crucible and heat to melt, The melting temperature is 1400°C, and the melting homogenization time is 2 hours. In the molten state, after the molten glass flows out, use air at 25°C and an air pressure of 2.0MPa to spray the molten glass vertically to naturally cool the biological glass fiber in cotton state with a diameter of 50nm-50μm and a length of 1mm-10cm.

[0068] Table 1

[0069] components mass (g) Na 2 CO 3

4.323 K 2 CO 3

11.275 MgCO 3 ~3Mg(OH) 3 ~5H 2 o

7.924 CaCO 3

16.330 SrCO 3

9.032 h 3 BO 3

23.378 SiO 2

22.055 NaH 2 PO 4 ~2H 2 o

6.363

[0070] (2) Disperse the borat...

Embodiment 2

[0086] (1) Preparation of borate glass fiber:

[0087] Prepare the molar ratio of each composition as

[0088] Na 2 O:K 2 O:MgO:CaO:B 2 o 3 :SiO2 2 :P 2 o 5 :SrO:Ag 2 O=6:8:8:22:18X:(54-18X):2:6:1 borate glass fiber, X=2, Ag 2The doping amount of O accounts for 1wt% of the total mass. The ingredients are weighed according to Table 2 and mixed evenly. After adding to the crucible, heat and melt. The melting temperature is 1250 ° C, and the melting and homogenization time is 2 hours. In the molten state, after the molten glass flows out, use air at 25°C and an air pressure of 2.0MPa to spray the molten glass vertically to naturally cool the biological glass fiber in cotton state with a diameter of 50nm-50μm and a length of 1mm-10cm.

[0089] Table 2

[0090] components mass (g) Na 2 CO 3

3.871 K 2 CO 3

10.096 MgCO 3 ~3Mg(OH) 3 ~5H 2 o

7.096 CaCO 3

14.624 SrCO 3

8.088 h 3 BO 3

41.871 S...

Embodiment 3

[0108] (1) Preparation of borate glass fiber:

[0109] Prepare the molar ratio of each composition as Na 2 O:K 2 O:MgO:CaO:B 2 o 3 :SiO2 2 :P 2 o 5 :SrO=6:8:8:22:18X:(54-18X):2:6 borate glass fiber, X=1, weigh the ingredients according to Table 1 and mix them evenly, add them into the crucible and heat to melt, The melting temperature is 1400°C, and the melting homogenization time is 2 hours. In the molten state, after the molten glass flows out, use air at 25°C and an air pressure of 2.0MPa to spray the molten glass vertically to naturally cool the biological glass fiber in cotton state with a diameter of 50nm-50μm and a length of 1mm-10cm.

[0110] table 3

[0111]

[0112]

[0113] (2) Disperse the borate biological glass fiber:

[0114] (2-1) Preparation of dispersant:

[0115] Select the dispersant component (isoamyl acetate CH) that makes the surface potential value of the borate biological glass fiber minimum (i.e. the minimum absolute value) in the pres...

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Abstract

The invention belongs to the technical field of biological materials and provides a biological glass fiber-modified polyester composite dressing and a preparation method thereof. The composite dressing obtained by the method at least comprises a modified polyester binder and borate bio-glass fibers. The modified polyester binder is a tetraethoxysilane-modified polyester binder. The composite dressing obtained by the preparation method has good biocompatibility, biological activity and biodegradability, reduces the patient pain caused by dressing exchange, stimulates the blood vessel regeneration around the wound, promotes the rapid healing of the wound and can also be used as a carrier for various types of functional ions and lipid-soluble drug carriers. The preparation method is simple and realizes a low cost.

Description

technical field [0001] The invention belongs to the technical field of biological materials, in particular to a biological glass fiber-modified polyester composite dressing and a preparation method thereof. Background technique [0002] With the development of society, geological disasters and armed conflicts occur frequently all over the world. These natural disasters and man-made disasters have led to a gradual increase in the types of wounds faced by human beings; at the same time, due to the aging trend of the world population, diabetic ulcers and varicose ulcers rate of growth. Therefore, the care of the related ulcer class wounds caused by these reasons has become a hygienic issue that has received increasing attention. As a covering for wounds, medical dressings can replace damaged skin to act as a temporary barrier during wound healing, avoid or control wound infection, and provide an environment conducive to wound healing. With the in-depth research on the cases a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61L26/00C03B37/012
CPCA61L26/0061A61L26/009A61L26/0095C03B37/01277C08L67/04
Inventor 黄文旵王德平周萘汤悦庞力斌
Owner TONGJI UNIV
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