A kind of wear-resistant milk protein fiber and its fabric preparation method and application

Abstract

The invention discloses a wear-resistant milk protein fiber, in which casein is grafted on the surface of the polyacrylonitrile fiber, and the casein covers the polyacrylonitrile fiber. The invention discloses a preparation method of the wear-resistant milk protein fiber, which comprises the following steps: adding polyacrylonitrile fiber to an alkaline solution, stirring, filtering, washing until neutral, drying, adding acid halide, heating, keeping warm, washing until Neutral, dry to obtain acid halide polyacrylonitrile; add casein and acid halide polyacrylonitrile into water, grind, add water; adjust pH to 8.5‑9.5 under nitrogen protection and stir; then add ethylene glycol dihydrate under oxygenation state Glycerin ether, ultrasonic treatment, followed by adjusting temperature and stirring, filtering, washing, drying to constant weight, and wet spinning to obtain wear-resistant milk protein fiber. The invention discloses a wear-resistant milk protein fiber fabric. The invention discloses the application of the wear-resistant milk protein fiber fabric as a wound dressing.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to a wear-resistant milk protein fiber and a preparation method thereof, a wear-resistant milk protein fiber fabric, a preparation method and an application thereof. Background technique [0002] Band-aid is the most commonly used surgical drug in people's life. Band-aid, also known as "hemostatic plaster", has the functions of hemostasis and skin protection. It is composed of a long adhesive plaster with a small piece of gauze soaked in medicine attached in the middle. An excellent band-aid should have the advantages of compressing hemostasis, protecting the wound, preventing infection, and promoting healing, and has good mechanical properties. It can be applied to wounds of different shapes to protect the wound from mechanical damage. It should also have good anti-infection ability to reduce wound wounds. Invasion of microorganisms, reducing inflammatory response, non-cytotoxic ...

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Problems solved by technology

[0003] However, the current conventional band-aid has poor air permeability of the adhesive tape, and the water vapor and sweat normally secreted by the human body cannot penetrate the adhesive tape, so it has a soaking effect on the local skin, and the specific performance is that the local skin is wrinkled.

At present, hydrogel dressings have attracted people's attention because they can automatically adjust the humidity of the wound, have the ability to absorb a small amount of exudate, and have the advantages of not sticking to the wound. However, hydrogel dressings have the disadvantage of being easy to erase

[0004] Milk protein fiber is white and is a composite fiber of regenerated protein. It is a new type of textile fiber made from casein separated from milk and polymer compound acrylonitrile through graft copolymerization to form polymer, and then wet spinning process. , it not only has a silky soft luster, soft, slippery and high strength, but also has excellent anti-mildew performance and natural antibacterial function. Using milk protein fiber to prepare wound dressings can not only overcome the existence of hydrogel dressings, which are easy to rub In addition to the disadvantages, it has a certain air permeability, but the milk white fiber has longitudinal hidden stripes, resulting in a high friction coefficient, poor wear resistance, and easy to break. It is easy to break when used to prepare ultra-thin band-aids.

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