Bacterial cellulose/emu oil composite membrane and preparation method thereof

A technology of bacterial cellulose film and bacterial cellulose, which is applied in the field of bacterial cellulose/emu oil composite film and its preparation, can solve the problem that hydrophobic emu oil is difficult to compound completely, and achieve good biocompatibility, method simple effect

Active Publication Date: 2020-01-31
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that it is difficult to complete the composite of hydrophobic emu oil and hydrophilic materials, the invention provides a bacterial cellulose / emu oil composite membrane and its preparation method

Method used

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  • Bacterial cellulose/emu oil composite membrane and preparation method thereof
  • Bacterial cellulose/emu oil composite membrane and preparation method thereof
  • Bacterial cellulose/emu oil composite membrane and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0029] After the emu oil is liquefied at 40-60°C, it is slowly dropped into the emulsifier cetyltrimethylammonium bromide solution, and the mass ratio of the emu oil to the emu oil is 0.1:5, 40-60 Stir and emulsify at ℃ to obtain a stable and uniform emu oil emulsion, then place the bacterial cellulose membrane in the emulsion to fully soak, stir and mix at 40-60℃, take out the mixed bacterial cellulose membrane, wash it with water, and remove the residual emulsion on the surface Freeze-dried for 12 hours to prepare bacterial cellulose / emu oil composite film.

Embodiment 2

[0031] After the emu oil is liquefied at 40-60°C, it is slowly dropped into the emulsifier cetyltrimethylammonium bromide solution, and the mass ratio of the emu oil to the emu oil is 0.9:5, 40-60 Stir and emulsify at ℃ to obtain a stable and uniform emu oil emulsion, then place the bacterial cellulose membrane in the emulsion to fully soak, stir and mix at 40-60℃, take out the mixed bacterial cellulose membrane, wash it with water, and remove the residual emulsion on the surface Freeze-dried to prepare bacterial cellulose / emu oil composite film.

Embodiment 3

[0033] After the emu oil is liquefied at 40-60°C, it is slowly dropped into the emulsifier cetyltrimethylammonium bromide solution, and the mass ratio of the emu oil to the emu oil is 2:5, 40-60 Stir and emulsify at ℃ to obtain a stable and uniform emu oil emulsion, then place the bacterial cellulose membrane in the emulsion to fully soak, stir and mix at 40-60℃, take out the mixed bacterial cellulose membrane, wash it with water, and remove the residual emulsion on the surface Freeze-dried to prepare bacterial cellulose / emu oil composite film.

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Abstract

The invention discloses a bacterial cellulose / emu oil composite membrane and a preparation method thereof. The composite membrane is formed by mixing bacterial cellulose and emu oil, and the emu oil in the composite membrane is uniformly dispersed in a bacterial cellulose nanofiber matrix. Hexadecyl trimethyl ammonium bromide is used as an emulsifier, the emu oil is emulsified and then is mixed with the bacterial cellulose, and the emu oil serves as a strengthening material and a bacteriostatic material for the mechanical property of the cellulose membrane in the composite membrane; the thickness, the mechanical strength, the bacteriostatic effect and other properties of the composite membrane are regulated and controlled by controlling the mass ratio of the emulsifier to the emu oil to be(0.1-2):5 and the soaking time and temperature of the bacterial cellulose in the emu oil emulsion. The method is simple, and the prepared composite membrane has good biocompatibility and can be usedas an antibacterial material applied to the fields of tissue engineering, biosensor coating materials, cosmetics, skin care products, medical dressings and the like.

Description

technical field [0001] The invention relates to a bacterial cellulose / emu oil composite film and a preparation method thereof, belonging to the technical field of antibacterial materials. Background technique [0002] Bacterial cellulose (BC) is a high-performance microbial synthetic material produced by bacteria such as Acetobacter genus. Compared with plant cellulose, it has no accompanying organisms such as lignin, pectin and hemifiber, and has high crystallinity. (up to 95%, plant cellulose is 65%) and high degree of polymerization (DP value 2000-8000), its elastic modulus is several times to dozens of times higher than that of ordinary plant fibers, and its tensile strength is high. In addition, the unique properties of bacterial cellulose such as high biocompatibility, adaptability and good biodegradability make it widely used in the fields of biomedicine, tissue engineering, food and textiles. [0003] Emu oil is extracted from the fat sac on the back of the emu. It ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/00C08L1/02
CPCC08J7/00C08J2301/02C08J2491/00
Inventor 孙东平胡颖孙汴京张衡陈啸陈春涛
Owner NANJING UNIV OF SCI & TECH
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