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Method for preparing antibiosis ABS products

A technology of ABS resin and products, which is applied in the field of preparation of antibacterial polymer materials, can solve the problems of serious agglomeration, grayish yellow color, uneven dispersion of ultrafine antibacterial agents, etc., and achieve good antibacterial effect and uniform distribution

Inactive Publication Date: 2005-01-12
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The antibacterial ABS made by adding antibacterial agents to ABS has the effect of inhibiting and killing bacteria, but the existing adding methods tend to make the color of ABS products grayish yellow, and the ultrafine antibacterial agents are unevenly dispersed in ABS and agglomerated seriously

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] In 1 kg of nano-SiO 2 Add 10 kilograms of water to make a suspension, add 5 liters of an aqueous solution containing 47 grams of silver nitrate under high-speed stirring, add dropwise 5 liters of an aqueous solution containing 16 grams of sodium chloride under stirring, and then stir for 30 minutes to obtain an antibacterial suspension. Mix 0.7 liters of n-butyl titanate, 1.2 liters of ethanol, and 0.1 liters of glacial acetic acid, stir for 1 hour, and add dropwise to the above antibacterial suspension at 80°C. After aging and drying at 120°C, an inorganic antibacterial powder with a particle diameter of 0.2 microns was obtained.

[0014] 100 grams of the above-mentioned inorganic antibacterial powders were milled for 4 hours by a three-roller ball mill, and 100 grams of polymethyl methacrylate (PMMA) was added for ball milling for 1 hour to obtain a particle size of 3.5 microns of antibacterial composite micropowder.

[0015] Get 250 grams of the above-mentioned anti...

Embodiment 2

[0017] 80 grams of inorganic antibacterial powders prepared in Example 1 were milled for 2 hours through a planetary ball mill, and 120 grams of polymethyl methacrylate (PMMA) was added for ball milling for 0.5 hour to obtain a particle diameter of 3 microns of antibacterial composite micropowder.

[0018] Get 300 grams of the above-mentioned antibacterial composite micropowders that have been dried, and blend with 10 kilograms of acrylonitrile-butadiene-styrene terpolymer ABS on a double-roller chain opener to obtain an antibacterial ABS profile. According to the QB / T 2591-2003 standard, the antibacterial rate against Escherichia coli (ATCC 25922) is 99.99%.

Embodiment 3

[0020] 120 grams of inorganic antibacterial powders prepared in Example 1 were milled for 2 hours through a planetary ball mill, and 80 grams of polymethyl methacrylate (PMMA) was added for ball milling for 0.5 hour to obtain a particle diameter of 3.5 microns of antibacterial composite micropowder.

[0021] Get 200 grams of the above-mentioned antibacterial composite micropowders that have been dried, and blend with 10 kilograms of acrylonitrile-butadiene-styrene terpolymer ABS on a double-roller chain opener to obtain an antibacterial ABS profile. According to the QB / T 2591-2003 standard, the antibacterial rate against Escherichia coli (ATCC 25922) is 99.99%.

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Abstract

A process for preparing antibiotic ABS product includes bal-grinding inorganic antibiotic powder containing nanosilicon dioxide and silver chloride as well as cladded by titanium dioxide with polymethyl methyl acrylate for obtaining inorganic antibiotic composite micropowder, adding prepared composite micropowder into ABS resin for producing antibiotic high polymer product through mixing and processing.

Description

technical field [0001] The invention relates to a preparation method of an antibacterial polymer material, more specifically, relates to a preparation method of an antibacterial ABS product. Background technique [0002] Before the present invention, the method for preparing antibacterial polymer materials is to directly add antibacterial agents to polymer materials, or make antibacterial agents into polymer antibacterial masterbatches and then add them to polymer materials. The antibacterial agent is directly added to the polymer material. Due to the small amount of addition and poor compatibility, the addition is uneven and the dispersion is not good. Screw extrusion, slicing and other processes. In recent years, there are many patents on the preparation methods of inorganic antibacterial agents and antibacterial polymer materials, but in the process of using the existing antibacterial polymer materials, the products are easy to change color; whe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K3/08C08L33/12C08L55/02
Inventor 王相田孟庆飞宋兴福于建国
Owner EAST CHINA UNIV OF SCI & TECH
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