Nano antibacterial material preparation method

A technology of nanometer antibacterial materials and inorganic nanomaterials, which is applied in the field of preparation of nanometer antibacterial materials, can solve the problems such as the reduction of material hardness, toughness and tear strength, the influence of long-term use performance of materials, and the inability to maintain for a long time, so as to achieve excellent antibacterial properties, The effect of broad market use value and long service life

Inactive Publication Date: 2018-09-11
HEBEI JIASHICHENG ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Not only is the work cumbersome and increases costs, but it cannot be maintained for a long time
[0003] Existing antibacterial materials cannot be widely used in some fields with high antibacterial requirements. Although some antibacterial agents have been added to materials in the prior art, their antibacterial properties are poor, especially for common Escherichia coli and The an

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0025] Example 1

[0026] A preparation method of nano antibacterial material includes the following preparation steps:

[0027] a. Mix the polyester polyol and polyether polyol into the reactor, heat and stir at 150°C, reduce the temperature to 50°C after 10 minutes, and perform dehydration treatment for 40 minutes to obtain material one;

[0028] b. Add anti-blocking agent, organic antibacterial agent and inorganic antibacterial agent to material one and mix well, vacuumize to -0.1MPa under heating at 90°C, then cool to 75°C for dehydration treatment for 2h, and then introduce into internal mixer and add The catalyst is subjected to a banbury reaction for 4 hours to obtain material two;

[0029] c. Mix the nano-silver-zinc composite material, surfactant and deionized water into the mixer, grind and stir for 5 hours, then add inorganic nano-materials and inorganic fillers and stir evenly to obtain material three;

[0030] d. Mix material two and material three and add isocyanate, chai...

Example Embodiment

[0040] Example 2

[0041] A preparation method of nano antibacterial material includes the following preparation steps:

[0042] a. Mix the polyester polyol and polyether polyol into the reactor, heat and stir at 120°C, reduce the temperature to 40°C after 10 minutes, and perform dehydration treatment for 40 minutes to obtain material one;

[0043] b. Add anti-blocking agent, organic antibacterial agent and inorganic antibacterial agent to material one and mix them evenly, vacuumize to -0.1MPa under heating at 90°C, then reduce the temperature to 65°C for dehydration treatment for 1h, and then import into the internal mixer and add The catalyst is subjected to a banbury reaction for 4 hours to obtain material two;

[0044] c. Mix the nano-silver-zinc composite material, surfactant and deionized water into the mixer, grind and stir for 3 hours, then add inorganic nano-materials and inorganic fillers and stir evenly to obtain material three;

[0045] d. Mix material two and material thre...

Example Embodiment

[0055] Example 3

[0056] A preparation method of nano antibacterial material includes the following preparation steps:

[0057] a. Mix the polyester polyol and polyether polyol into the reactor, heat and stir at 150°C, reduce the temperature to 50°C after 15 minutes, and perform dehydration treatment for 50 minutes to obtain material one;

[0058] b. Add anti-blocking agent, organic antibacterial agent and inorganic antibacterial agent to material one and mix well, vacuumize to -0.1MPa under heating at 95℃, then cool to 75℃ for dehydration treatment for 2h, and then import it into the internal mixer and add The catalyst is subjected to a banbury reaction for 6 hours to obtain material two;

[0059] c. Mix the nano-silver-zinc composite material, surfactant and deionized water into the mixer, grind and stir for 5 hours, then add inorganic nano-materials and inorganic fillers and stir evenly to obtain material three;

[0060] d. Mix material two and material three and add isocyanate, ch...

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PUM

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Abstract

The invention provides a nano antibacterial material preparation method which comprises the following steps: a, mixing polyester polyol and polyether polyol and adding into a reaction kettle to be heated and stirring and cooling to perform dewatering treatment to obtain a first material; b, adding an anti-blocking agent, an organic antibacterial agent and an inorganic antibacterial agent into thefirst material, heating and vacuumizing, then cooling and performing dewatering treatment, guiding into an internal mixer, adding an additive and smelting to obtain a second material; c, mixing a nanosilver zinc composite material, a surface active agent and deionized water and guiding into a material mixing machine and then adding an inorganic nano material and inorganic filler to obtain a thirdmaterial; d, mixing the second material and the third material, adding isocyanate, a chain extender and a lubricant, stirring by utilizing a magnetic stirrer, then guiding into a twin-screw extruderand extrusion molding under the vacuum condition. The prepared nano antibacterial material disclosed by the invention has the advantages of better processability and mechanical property, excellent antibacterial performance, greenness, environmental friendliness and long service life.

Description

technical field [0001] The invention belongs to the technical field of antibacterial materials, and in particular relates to a preparation method of nano antibacterial materials. Background technique [0002] With the acceleration of the pace of modern life and the increase of population mobility, bacteria adhering to and growing on various surfaces, especially medical, sanitation, and public event venues, pose an increasing threat to people's health. In order to kill these bacteria, in addition to frequent cleaning and cleaning methods for items, there are also methods such as using various disinfectants or performing high temperature, high pressure or ultraviolet light, microwave irradiation and other methods for disinfection and sterilization. Not only work is loaded down with trivial details, increases cost, and can't keep for a long time. [0003] Existing antibacterial materials cannot be widely used in some fields with high antibacterial requirements. Although some a...

Claims

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Application Information

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IPC IPC(8): C08L75/08C08L75/06C08L75/04C08L91/06C08L39/06C08K13/02C08K5/20C08K3/36C08K5/19C08K3/22C08K5/3432C08G18/66C08G18/48C08G18/42C08G18/44
CPCC08L75/08C08G18/4018C08G18/4238C08G18/4277C08G18/44C08G18/4808C08G18/4812C08K2003/2227C08K2003/2231C08K2003/2272C08K2201/011C08K2201/014C08L75/04C08L75/06C08L2205/03C08L91/06C08K13/02C08K5/20C08K3/36C08K5/19C08K3/22C08L39/06C08K5/3432
Inventor 白莉莉
Owner HEBEI JIASHICHENG ENERGY TECH CO LTD
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