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Antibacterial polyurethane foam material and preparation method and application thereof

A technology of polyurethane foam and polyester polyol, applied in application, surgery, surgical adhesives, etc., can solve the problems of high cost and unsatisfactory effect, and achieve low biotoxicity, long-term stable antibacterial, and biocompatibility Good results

Inactive Publication Date: 2021-11-05
BEIJING UNIV OF CHEM TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to solve the technical problems of high cost and unsatisfactory effect of existing nasal cavity hemostatic materials, and provide a nasal cavity hemostatic sponge with not only good mechanical properties, liquid absorption ability and other basic properties, but also a controllable degradation performance Antibacterial polyurethane foam material with stable antibacterial effect and its preparation method and application

Method used

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  • Antibacterial polyurethane foam material and preparation method and application thereof
  • Antibacterial polyurethane foam material and preparation method and application thereof
  • Antibacterial polyurethane foam material and preparation method and application thereof

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Embodiment 1

[0038] The preparation method of antibacterial polyurethane nasal cavity hemostatic material:

[0039] S1. Preparation of quaternized chitosan: Weigh 10g of chitosan, add 150ml of 20% concentration of epoxypropyl dimethyl dodecyl ammonium chloride solution, heat to 80°C for constant temperature reaction for 12h, wash and dry Process to obtain powdery quaternized chitosan QCS-12.

[0040] S2, mix 70g polyethylene glycol (molecular weight 1000) and 30g polycaprolactone diol (molecular weight 1000) after removing water, add the aqueous solution of QCS-12, catalyst (stannous octoate and triethylenediamine), Foam stabilizer L-580 is stirred at 500r / min for 1-2min and then the temperature of the material is kept to 50°C.

[0041]S3. Then, add 15g of isophorone diisocyanate to the mixture under stirring at 3000r / min, stir for 10-60s, pour it into a mold, foam at room temperature, and ripen at 80°C for 1h after the foam is debonded , and finally aged at room temperature for 7 days t...

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Abstract

The invention relates to an antibacterial polyurethane foam material and a preparation method and application thereof, solves the technical problems of high cost and non-ideal effect of the existing nasal cavity hemostatic material, and provides the antibacterial polyurethane foam material. The antibacterial effective component in the antibacterial polyurethane foam material is long side chain quaternized chitosan with 12 carbons on the side chain. The invention also provides a preparation method and application thereof. The material can be used in the field of antibacterial materials.

Description

technical field [0001] The invention relates to a polyurethane foam material and its preparation method and application, in particular to an antibacterial polyurethane foam material and its preparation method and application. Background technique [0002] Nasal diseases such as chronic sinusitis, nasal polyps, and nasal septum are common diseases in otolaryngology. About 500,000 nasal endoscopic surgeries are performed in the United States every year to treat such diseases. Along with the improvement of our country's economic growth and living standards, more and more people use nasal endoscopic surgery to treat rhinological diseases. Since postoperative nasal packing and hemostasis is the key point of successful nasal endoscopic surgery, the effectiveness of nasal hemostatic materials, the comfort of use, postoperative infection and postoperative removal are often the focus of attention. [0003] The early hemostatic materials for the nasal cavity were mainly Vaseline gauz...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/64A61L24/00A61L24/04A61L24/08C08G101/00
CPCC08G18/6484A61L24/08A61L24/046A61L24/0036A61L24/0015A61L24/0042A61L24/001A61L2400/04A61L2300/404A61L2300/236C08G2110/0083C08G2230/00C08L5/08C08L71/02C08L75/04
Inventor 丁雪佳丛文龙宋长统徐福建姚振勇徐乐
Owner BEIJING UNIV OF CHEM TECH
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