Casein-based dual-network antibacterial composite hydrogel material and preparation method thereof

A composite hydrogel and casein technology is applied in the field of polymer biomaterial preparation, which can solve the problems of easy mildew and spoilage, poor antibacterial performance, etc., and achieve the effects of excellent hygienic performance, stable performance and wide application prospects.
CN112126084AActive Publication Date: 2020-12-25SHAANXI UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHAANXI UNIV OF SCI & TECH
Publication Date
2020-12-25

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Abstract

The invention discloses a casein-based dual-network antibacterial composite hydrogel material and a preparation method thereof. The preparation method includes the steps that: casein serves as a basematerial, zinc oxide nanoparticles are introduced, casein dispersion liquid and the zinc oxide nanoparticles are evenly mixed through physical blending; metal ions are used as a cross-linking agent topromote the casein to be complexed and cross-linked in a self-crosslinking structure to form a double-network structure; part of the zinc oxide nanoparticles are coated and dispersed in hydrogel in the form of an antibacterial agent, and the casein-based double-network antibacterial composite hydrogel is obtained through UV photocuring. The casein-based dual-network composite hydrogel is obtainedby utilizing the advantages of unique amphipathy, good swelling property, wide source, low price and the like of the casein, and has the advantages of high reaction rate and stable structure. According to the prepared casein-based dual-network composite hydrogel, nanoparticles are uniformly dispersed and effectively cross-linked between casein micelles, so that the hydrogel is green and environment-friendly, has stable performance and has antibacterial property.
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Description

technical field

[0001] The invention belongs to the technical field of polymer biomaterial preparation, and in particular relates to a casein-based double-network antibacterial composite hydrogel material and a preparation method thereof. Background technique

[0002] Hydrogels are water-soluble polymers with three-dimensional networks capable of trapping large amounts of water within their structures. The porous structure of hydrogels makes them excellent materials for protection and transportation. Hydrogels have the following characteristics: (1) Water-swellable, cross-linked polymers. (2) Hydrophilic, absorbing water up to thousands of times its own weight. (3) Three-dimensional network structure, insoluble in water. (4) Ability to perceive small external stimuli. Hydrogel properties depend on polymer concentration, degree of crosslinking, temperature, pH, aging and salt concentration.

[0003] Casein is a kind of globular protein that can be completely biodegradabl...

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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