Preparation method of nanocellulose antibacterial sustained-release film
A technology of nanocellulose and sustained-release film, applied in the field of preparation of nanocellulose antibacterial sustained-release film, can solve the problems such as nano-cellulose antibacterial sustained-release film, which can prolong the storage and preservation time of food and achieve good mechanical properties. and antibacterial slow-release function, the effect of inhibiting the growth of microorganisms
Inactive Publication Date: 2019-01-18
GUANGXI UNIV
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Abstract
The invention discloses a preparation method of a nanocellulose antibacterial sustained-release film. The method comprises the following steps: firstly, weighing 100 parts of nanocellulose colloid, 0.08 part of TEMPO powder and 0.52 part of NaBr powder, and diluting the substances with distilled water until the solid content is 1 percent; adding 0.4 to 4 parts of NaClO solution, adjusting and keeping a pH value of the system to 10, adding absolute ethyl alcohol and enabling the reaction to be ended; then centrifugally washing to obtain nanocellulose oxide; secondly, taking the nanocellulose colloid and a nanocellulose oxide sustained-release control agent, mixing and diluting until the solid content is 1 percent to obtain mixed nanocellulose suspension; thirdly, preparing a nisin solutionwith the concentration of 1 percent, adding the solution into the mixed nanocellulose suspension, and carrying out magnetic stirring to obtain a film forming liquid; fourthly, pouring the film formingliquid into a die and drying to obtain the nanocellulose antibacterial sustained-release film. The antibacterial sustained-release film prepared by the preparation method disclosed by the invention has good mechanical properties and slow release function of an antibacterial agent and can effectively inhibit the growth of microorganisms.
Technology Topic
Biological growthChemistry +9
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PUM
Property | Measurement | Unit |
Diameter | 2.0 ~ 20.0 | nm |
Length | 0.1 ~ 100.0 | µm |
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