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Method for preparing high-strength antibacterial oil-water separation type material through cold plasma pretreatment

A technology of cold plasma and oil-water separation, which is applied in fiber treatment, physical treatment, biochemical fiber treatment, etc. It can solve the problems of insufficient research and achieve the effects of uniform distribution, large application prospects, and enhanced adhesion

Inactive Publication Date: 2017-02-08
NORTHEAST FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the current research on antibacterial oil-water separation materials is not deep enough, and in the actual application process, there are still many problems in this material.

Method used

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  • Method for preparing high-strength antibacterial oil-water separation type material through cold plasma pretreatment
  • Method for preparing high-strength antibacterial oil-water separation type material through cold plasma pretreatment

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Embodiment

[0032] Embodiment: The cold plasma pretreatment method of this embodiment prepares high-strength antibacterial oil-water separation type material, comprising the following steps:

[0033] 1. Preparation of silver-loaded silica:

[0034] The silicon dioxide particles with a particle diameter of 200nm and a mass fraction of 0.4%, a silver nitrate aqueous solution with a concentration of 0.3g / mL as a volume fraction of 10%, and an aqueous solution of sodium citrate with a concentration of 50g / mL as a volume fraction of 1% were successively added to ethanol: In a solvent with a water volume ratio of 1:1, stir magnetically at room temperature for 2 hours, wash with centrifuge and alcohol, and then calcine after vacuum drying (placed in a muffle furnace, temperature programmed at a rate of 10°C per minute, under nitrogen protection at 500 ℃ calcined for 3 hours), cooled, and continued to grind for 0.5 hours;

[0035] 2. Cold plasma pretreatment of substrate:

[0036] The substrate...

specific Embodiment approach 2

[0042] Specific embodiment two: the difference between this embodiment and specific embodiment one is step four, fix the base material, slowly move the spray gun, keep the distance between it and the spray gun at 20cm, and the spraying pressure is 100kPa: first spray the second treatment liquid on the base The surface of the substrate, 3 times with an interval of 10 seconds, and then placed at room temperature for 2 hours; then spray the third treatment solution on the surface of the substrate, 3 times with an interval of 10 seconds, and dry at room temperature.

specific Embodiment approach 3

[0043] Embodiment 3: The difference between this embodiment and Embodiment 1 is that in step 2, the gas introduced is argon.

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Abstract

The invention discloses a method for preparing a high-strength antibacterial oil-water separation type material through cold plasma pretreatment, and belongs to the technical field of functional materials. The method comprises the following steps of the preparation of silver-loaded silica particles, the cold plasma pretreatment of a base material, the preparation of a sprayed treating fluid, the spraying of the treating fluid, the preparation of a hydrophobic modifying fluid and treatment, and finally, the obtaining of the high-strength antibacterial oil-water separation type material. The silver-loaded silica particles prepared by the method are stable in sizes and are uniform in distribution; a contact proportion between nano silver on the surface of a fiber of the base material and a harmful bacterium is increased; a product is enabled to obtain an optimal antibacterial effect; a sizing agent on the surface of the fiber of the base material is effectively removed through plasma treatment; the fiber is roughened; the cohesiveness between the fiber and a resin adhesive is enhanced; due to the existence of the resin adhesive, the distribution of the sliver-loaded silica particles on the surface of the fiber of the base material is fixed; the sliver-loaded silica particles are enabled to be difficult to fall off; the antibacterial effects of the sliver-loaded silica particles are sufficiently exerted; a finally made product has an excellent oil-water separation effect, and has a wider application prospect in the fields of medical treatment, oil-water treatment and the like in the future.

Description

technical field [0001] The invention relates to a method for preparing an antibacterial oil-water separation material, in particular to a method for preparing a high-strength antibacterial oil-water separation material through cold plasma pretreatment, and belongs to the technical field of functional materials. Background technique [0002] At present, the types of antibacterial agents include organic antibacterial agents, organometallic antibacterial agents, compound antibacterial agents, nano-metal antibacterial agents, and inorganic powder-supported metal antibacterial agents. Among them, silver-loaded silica has become a hotspot of widespread concern and application. As we all know, the current synthesis technology of silica particles tends to be mature. Due to its effective mesoporous structure and hydroxyl groups on the surface, it has become an excellent carrier for inorganic materials to carry silver for slow-release antibacterial. At present, silver-loaded silica i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/83D06M15/55D06M15/564D06M10/02D06M13/513D06B1/02D21H21/36D06M101/06
CPCD06M11/83D06B1/02D06M10/025D06M13/513D06M15/55D06M15/564D06M16/00D06M2101/06D21H21/36
Inventor 李坚张明包文慧张文博王成毓
Owner NORTHEAST FORESTRY UNIVERSITY
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