Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method of polyamide nano compound packaging material high in bacterium resistance

A composite packaging material and composite material technology are applied in the field of preparation of polyamide nanocomposite packaging materials, which can solve the problems of poor antibacterial performance and poor barrier properties, and achieve the improvement of antibacterial properties, waterproof and gas barrier properties, uniformity, good Compatibility effect

Active Publication Date: 2017-08-29
SUZHOU ANTEK INDAL
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Polyamide molecules contain strong polar amide groups, which have better barrier properties to gases and are widely used in packaging materials. However, the commonly used polyamide packaging materials have poor barrier properties to polar small molecules and other substances, and are antibacterial. poor performance

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of polyamide nano compound packaging material high in bacterium resistance
  • Preparation method of polyamide nano compound packaging material high in bacterium resistance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A preparation method of a highly antibacterial polyamide composite packaging material, comprising the following steps:

[0027] (1) Mix and stir polyvinylpyrrolidone and absolute ethanol evenly, transfer to a three-necked flask, add triethylamine dropwise to the reaction system under 300r / min magnetic stirring, after the dropwise addition, slowly add tetrabutyl titanate For ester, heat up to 70°C, and continuously feed nitrogen with water into the reaction system, reflux for 5h under magnetic stirring at 300r / min, cool to room temperature after the reaction, and obtain dispersion A; among them, polyvinylpyrrolidone, anhydrous The dosage ratio of ethanol, triethylamine and tetrabutyl titanate is 1g: 100mL: 1mL: 2mL;

[0028] (2) Add deionized water to the dispersion A in the three-necked flask, stir and mix evenly, pass nitrogen gas for 30 minutes in advance, then raise the temperature to 70°C, add styrene monomer and initiator to the mixed dispersion in turn, and mix we...

Embodiment 2

[0031] A preparation method of a highly antibacterial polyamide composite packaging material, comprising the following steps:

[0032] (1) Mix and stir polyvinylpyrrolidone and absolute ethanol evenly, transfer to a three-necked flask, add triethylamine dropwise to the reaction system under 600r / min magnetic stirring, after the dropwise addition, slowly add tetrabutyl titanate For ester, heat up to 70°C, and continuously feed nitrogen with water into the reaction system, reflux for 10h under magnetic stirring at 600r / min, cool to room temperature after the reaction, and obtain dispersion A; among them, polyvinylpyrrolidone, anhydrous The dosage ratio of ethanol, triethylamine and tetrabutyl titanate is 1g: 100mL: 3mL: 2mL;

[0033] (2) Add deionized water to the dispersion A in the three-necked flask, stir and mix evenly, pass nitrogen gas for 30 minutes in advance, then raise the temperature to 70°C, add styrene monomer and initiator to the mixed dispersion in turn, and mix w...

Embodiment 3

[0036] A preparation method of a highly antibacterial polyamide composite packaging material, comprising the following steps:

[0037](1) Mix and stir polyvinylpyrrolidone and absolute ethanol evenly, transfer to a three-necked flask, add triethylamine dropwise to the reaction system under 400r / min magnetic stirring, after the dropwise addition, slowly add tetrabutyl titanate For ester, heat up to 70°C, and continuously feed nitrogen with water into the reaction system, reflux for 6h under magnetic stirring at 400r / min, cool to room temperature after the reaction, and obtain dispersion A; among them, polyvinylpyrrolidone, anhydrous The dosage ratio of ethanol, triethylamine and tetrabutyl titanate is 1g: 100mL: 1.5mL: 2mL;

[0038] (2) Add deionized water to the dispersion A in the three-necked flask, stir and mix evenly, pass nitrogen gas for 30 minutes in advance, then raise the temperature to 70°C, add styrene monomer and initiator to the mixed dispersion in turn, and mix w...

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
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a preparation method of a polyamide nano compound packaging material high in bacterium resistance. The preparation method includes: adding polyvinyl pyrrolidone into a system for preparing nano titanium oxide, allowing tetrabutyl titanate to be slowly hydrolyzed under the action of nitrogen with water and the catalyzing of triethylamine to generate nanoscale grains, directly adding styrene monomers and an initiator into the stock solution of the grains to perform polymerization to allow the styrene monomers to polymerize on the surfaces of the nano grains under the action of the polyvinyl pyrrolidone on the surfaces of the nano grains, and performing low-temperature sintering to obtain core-shell-structured polystyrene-nano titanium oxide; kneading the polystyrene-nano titanium oxide with polyamide, plasticizer, a coupling agent and an antioxidant, using a double-screw extruder to perform extrusion granulation, cooling, drying, and pulling up and forming to obtain the polyamide nano compound packaging material. The polyamide nano compound packaging material is good in stability, nontoxic, environmentally friendly and low in preparation cost and has certain bacterium resistance, waterproof performance and gas barrier performance.

Description

Technical field: [0001] The invention relates to the field of plastic packaging, in particular to a preparation method of a highly antibacterial polyamide nanocomposite packaging material. Background technique: [0002] Plastic is a new type of polymer material industrialized in the early 21st century. It has been less than 100 years since it came out. In the competition, it has shown strong vitality, and it has penetrated into industry, agriculture, and national defense. All aspects of scientific research and other fields have become an indispensable material in modern human life, and plastic products have also been widely used and developed rapidly in the field of packaging. Now, among the various applications of plastic products, plastic packaging materials rank first. [0003] Polyamide molecules contain strong polar amide groups, which have better barrier properties to gases and are widely used in packaging materials. However, the commonly used polyamide packaging mat...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/00C08K13/06C08K9/10C08K3/22
CPCC08K3/22C08K9/10C08K13/06C08K2003/2241C08K2201/011C08L77/00
Inventor 包伟强
Owner SUZHOU ANTEK INDAL
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com