Polyvinyl alcohol/chitosan nano fiber film dressing containing nano silver and preparation thereof

A nanofiber membrane and chitosan nanotechnology, which can be used in fiber processing, medical science, textiles and papermaking, etc., can solve the problems of sponge dressings with small specific surface area, small porosity, wound cell adhesion and growth promotion, etc. , to achieve the effects of reducing shedding and agglomeration, improving stability, and simple preparation process
CN104511045AActive Publication Date: 2015-04-15WUYI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
WUYI UNIV
Publication Date
2015-04-15

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Abstract

The invention relates to a polyvinyl alcohol / chitosan nano fiber film dressing containing nano silver and preparation thereof. The nano fiber film dressing is prepared by the following steps: taking a mixture of polyvinyl alcohol and chitosan as the base material, then mixing nano silver into the polyvinyl alcohol / chitosan nano fiber film through an electrostatic spinning technology, and finally adding glutaraldehyde to crosslink the nano fiber film so as to obtain the target product. The obtained dressing has the characteristics that the preparation technology is simple; a wet environment can be achieved for promoting wound healing; and the dressing has an antiseptic function.
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Description

technical field

[0001] The invention relates to a biomedical textile, in particular to a nano silver-containing polyvinyl alcohol / chitosan nanofiber membrane dressing and its preparation. Background technique

[0002] In 1962, British Professor Winter proposed the theory of moist therapy, and confirmed that compared with the dry wound environment exposed to the air, the moist environment formed after the application of moist and permeable medical dressings can promote the formation of epithelium and accelerate wound healing. heal. Since then, various wet dressings have emerged, and studies have shown that ideal medical dressings should have the following functions: ① absorb wound exudate, keep the wound moist, and prevent loss of body fluids and moisture; ② resist bacterial invasion and prevent infection ; ③ Promote the adhesion and growth of granulation and epithelial tissue.

[0003] In order to maintain the wettability of the wound, many water-soluble polymer materials ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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