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Biological packaging material and preparation method thereof

A technology of packaging materials and biological fillers, applied in the field of polymers, can solve problems such as the inability to form a bonding interface, poor mechanical properties of reinforced composite materials, and difficult polymer materials to fuse together, so as to facilitate industrial applications, improve interface effects, and improve phase capacitive effect

Inactive Publication Date: 2017-05-31
宁波芸生纺织品科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As a natural protein fiber with excellent mechanical properties, silk has broad application prospects in the field of fiber composite materials, especially in the field of biomaterials; however, the multi-level structure of silk itself, especially the internal nano-sized β -The folded crystalline structure makes it difficult for silk fibers to fuse with polymer materials, and cannot form a compatible bonding interface, resulting in poor mechanical properties of silk reinforced composites

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) Silk fibroin fibers were obtained after tussah silk degumming; the silk fibroin fibers were dissolved in strontium chloride trifluoroacetic acid solution to obtain a silk fibroin solution; then infrared drying was performed to obtain strontium-containing regenerated silk fibroin films; In the presence of ammonium, put the strontium-containing regenerated silk fibroin film into a closed container for mineralization treatment for 38 hours to obtain a mineralized film; crush to obtain a biological filler with a particle size of 0.69-0.75 microns; silk fibroin fiber, strontium chloride , trifluoroacetic acid, and powder in a mass ratio of 1:0.08:49:8; the quality of ammonium carbonate is 58% of the mass of strontium-containing regenerated silk fibroin film;

[0022] (2) Add bisphenol A type cyanate monomer into the reactor, react at 95°C for 12 minutes, add N-methylol acrylamide, raise the temperature to 120°C, add triphenylglycidyl ether methane and α - pinene, reacted...

Embodiment 2

[0025] (1) Castor silk was degummed to obtain silk fibroin fibers; the silk fibroin fibers were dissolved in strontium chloride trifluoroacetic acid solution to obtain a silk fibroin solution; then infrared drying was performed to obtain strontium-containing regenerated silk fibroin films; In the presence of ammonium carbonate, the strontium-containing regenerated silk fibroin film was placed in a closed container for mineralization treatment for 38 hours to obtain a mineralized film; crushed to obtain a biological filler with a particle size of 0.69-0.75 microns; silk fibroin fiber, chlorinated The mass ratio of strontium, trifluoroacetic acid and powder is 1:0.08:49:8; the mass of ammonium carbonate is 58% of the mass of strontium-containing regenerated silk fibroin film;

[0026] (2) Add bisphenol A type cyanate monomer into the reactor, react at 90°C for 10 minutes, add N-methylol acrylamide, heat up to 120°C, add triphenylglycidyl ether methane and α - pinene, reacted for...

Embodiment 3

[0029] (1) silk fibroin fibers are obtained after degumming treatment of silkworm silk; the silk fibroin fibers are dissolved in strontium chloride trifluoroacetic acid solution to obtain a silk fibroin solution; then infrared drying is performed to obtain a strontium-containing regenerated silk fibroin film; In the presence of ammonium carbonate, the strontium-containing regenerated silk fibroin film was placed in a closed container for mineralization treatment for 38 hours to obtain a mineralized film; crushed to obtain a biological filler with a particle size of 0.69-0.75 microns; silk fibroin fiber, chlorine The mass ratio of strontium chloride, trifluoroacetic acid and powder is 1:0.08:49:8; the mass of ammonium carbonate is 58% of the mass of strontium-containing regenerated silk fibroin film;

[0030] (2) Add bisphenol A type cyanate monomer into the reactor, react at 95°C for 10 minutes, add N-methylolacrylamide, raise the temperature to 120°C, add triphenyl glycidyl et...

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Abstract

The invention discloses a biological packaging material and a preparation method thereof. The preparation method comprises the following steps: dissolving silk fibroin fiber into a strontium chloride trifluoroacetic acid solution, and drying to obtain a strontium-containing regenerated silk fibroin membrane; under the existence of ammonium carbonate, putting the strontium-containing regenerated silk fibroin membrane into a closed container, and performing mineralization treatment to obtain a mineralized membrane; pulverizing to obtain biological fillers; adding a bisphenol A type cyanate ester monomer into a reactor, and adding N-hydroxymethyl acrylamide, triphenyl glycidyl ether methane and alpha-pinene to prepare an epoxy prepolymer; mixing the epoxy prepolymer and the biological fillers to obtain active powder; mixing polyethylene, polypropylene, polyethylene glycol(400)dimethacrylate, methylene succinic acid and the active powder uniformly, and performing melting extrusion by a screw rod to prepare olefin particles; preparing to obtain the biological packaging material. According to the biological packaging material prepared by the method, the 24-hour sterilization rate (escherichia coli) is 99 percent or higher, wear resistance reaches 3000 times or more, the oxygen index is 29, and the label adhesive strength is 628.

Description

technical field [0001] The invention belongs to the technical field of macromolecules, and in particular relates to a biological packaging material and a preparation method thereof. Background technique [0002] As a natural protein fiber with excellent mechanical properties, silk has broad application prospects in the field of fiber composite materials, especially in the field of biomaterials; however, the multi-level structure of silk itself, especially the internal nano-sized β -The folded crystalline structure makes it difficult for silk fibers to fuse with polymer materials, and cannot form a compatible bonding interface, resulting in poor mechanical properties of silk reinforced composites. Contents of the invention [0003] The object of the present invention is to provide a biological packaging material and a preparation method thereof, which have excellent biocompatibility and mechanical properties and can be used as food or organ packaging materials. [0004] In...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/12C08L71/02C08L63/00C08L89/00C08K3/26C08K5/092
CPCC08L23/06C08L2205/035C08L2205/08C08L23/12C08L71/02C08L63/00C08L89/00C08K2003/265C08K5/092
Inventor 张定张香会
Owner 宁波芸生纺织品科技有限公司