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Collagen-g-polymer/Ag multi-hole nano antibacterial film material and preparation method thereof

A collagen, film material technology, applied in the fields of botanical equipment and methods, chemicals for biological control, animal repellants, etc., to achieve the effect of good wetting performance

Inactive Publication Date: 2013-02-20
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in traditional radical polymerization, side reactions such as homopolymerization of monomers inevitably occur due to the different reactivity of monomers.

Method used

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  • Collagen-g-polymer/Ag multi-hole nano antibacterial film material and preparation method thereof
  • Collagen-g-polymer/Ag multi-hole nano antibacterial film material and preparation method thereof
  • Collagen-g-polymer/Ag multi-hole nano antibacterial film material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Step 1, dissolve 4G collagen (beyond) at 96 ml 40 ~ 60 o C in hot water;

[0028] Step 2, add 0.2g styrene monomer to step 1, pass n 2 It

[0029] Step 3, add 0.002g potassium sulfate cause, 60 o C reaction 3hh;

[0030] Step 4, add 4ml 1g / L nitrate solution to step 3 mixing solution,

[0031] Step 5, add sodium sodium reducing agent to step 4 solution;

[0032] Step 6, cool to room temperature, diffuse and solidify it on the slide of the slice;

[0033] Step 7: Use hot water to remove unacceptable collagen and residual potassium sulfate causes in the film;

[0034] Step 8. Place the film 7 in the Thor's extractor, and use acetone solvents to etch the by-products polystyrene microbolis, that is, the porous collagen -g-polymer / AG antibacterial film material, collagen and branches.The rate is 4%, and the wet angle is 76 o The size of AG nanoparticles is 3 ~ 6m.

Embodiment 2

[0036] Step 1, dissolve 1g collagen to 99 ml 40 ~ 60 o C in hot water;

[0037] Step 2, add 1g of ethyl acetate monomer to step 1, pass n 2 It

[0038] Step 3, add 0.01g hydrogen peroxide solution (50%) to step 2 mixing solution as a cause, 80 o C reaction 1h;

[0039] Step 4, add 5ml 1g / L nitrate solution to step 3 mixing solution;

[0040] Step 5: Add potassium borohydride to the solution to the solution 4;

[0041] Step 6, cool to room temperature, diffuse and solidify it on the slide of the slice;

[0042] Step 7, remove unacceptable collagen in the film with hot water;

[0043] Step 8. Place the film 7 in the Thor's extractor, and use acetone solvents to etch by-products polyacin acetate micro-ball, that is, the porous collagen -g-polymer / AG antibacterial film material, collagen connectionThe branch rate is 42%, and the wet angle is 88 o The size of AG nanoparticles is 3 ~ 6m.

Embodiment 3

[0045] Step 1, dissolve 1g collagen to 99ml 40 ~ 60 o C in hot water;

[0046] Step 2, add 0.2g of ethyl chloride monomer to step 1, pass n 2 It

[0047] Step 3, add 0.001g dihydroxyl iodotic acid combined copper potassium in the mixing solution to step 2 as a cause, 100 o C reaction 1h;

[0048] Step 4. Add 1g / L nitrate solution to step 3 mixing solution;

[0049] Step 5: Add aquatic reducing agent to step 4 solution;

[0050] Step 6, cool to room temperature, diffuse and solidify it on the slide of the slice;

[0051] Step 7: Use hot water to remove unacceptable collagen in the film and dihydroxyl iodotic acid combined copper potassium cause;

[0052] Step 8. Place the film 7 in a thin film in the Soe extract, and erode the by-product polyvinyl chloride microspheres with chlorine solvents, that is, the porous collagen -g-polymer / AG antibacterial film material, collagen and branches.The rate is 15%, and the wet angle is 82 o The size of AG nanoparticles is 3 ~ 6m, and its FR-SEM ...

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Abstract

The invention discloses a collagen-g-polymer / Ag multi-hole nano antibacterial film material and a preparation method thereof. The mass ratio of the monomer and the collagen of the material is 0.05-1, the mass concentration of Ag nano particles in a collagen solution is in a range from 15mg / g to 30mg / g, the monomer is one of styrene, vinyl acetate, vinyl chloride or methyl acrylate, sizes of Ag nano particles are in a range from 3nm to 6nm, the hole diameter of the material is in a range from 3nm to 10nm, and the grafting ratio of the collagen is in a range from 4% to 42%. Accordingly, the number of the monomer is changed, a surface active agent which has good compatibility with the collagen is added, and quality factors such as the hole size and the uniformity of a film can be adjusted and controlled. The material has advantages of natural materials and synthetic polymer materials and is worthy of popularization in the field of biological materials.

Description

Technical field [0001] The present invention provides a collagen -g-polymer / AG polymo-nano-antibacterial film material and preparation method, which belongs to the field of material preparation. Background technique [0002] Films with an orderly hole structure are widely used in tissue materials, drug transmission and medical equipment.At present, the main preparation technology of hole materials is a method of water, polymer emulsion particles, surface active agents, and embedded segments.EssenceHowever, in the traditional free radical aggregation, due to the different response activity of the monomer, the aggregation of side reactions such as monomers will inevitably occur.Generally, the structure and quantity of by -products can be controlled by adjusting the aggregation process.Therefore, the use of free radical agglomeration methods will be used to remove the by -product templates to prepare a new research field of a high -molecular pore film material with excellent perform...

Claims

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Application Information

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IPC IPC(8): C08L51/00C08K3/08C08F289/00C08F212/08C08F218/08C08F214/06C08F220/14C08J9/26A01N59/16A01P1/00
Inventor 刘颖刘孝恒姚霞喜汪信杨绪杰陆路德
Owner NANJING UNIV OF SCI & TECH
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