Antibacterial engineering plastic and its preparing method

A technology of engineering plastics and antibacterial agents, applied in the field of polymer materials, to achieve the effect of simple preparation process and excellent physical and mechanical properties

Inactive Publication Date: 2007-11-14
SHENZHEN KEJU NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Mix 0.3% antibacterial agent by weight and 0.5% EBS diffusing powder in a plastic container, then mix PC 60.9%, ABS 26%, PC / ABS compatibilizer 3% and white oil 1% in another plastic container Evenly, then put the mixed antibacterial agent and plastic particles and B338 8%, 1010 0.2%, 168 0.1% into the high-speed mixer, and continue to mix at room temperature for 4 minutes. Afterwards, the mixed materials are put into the hopper of the twin-screw extruder, melted and blended, extruded and granulated to form a composite material. Among them, the temperature settings of each heating zone of the screw are: zone 1 temperature: 220°C, zone 2: 230°C, zone 3: 230°C, zone 4: 220°C, head: 225°C, residence time 1-2min, pressure is 15MPa.

Embodiment 2

[0032] Mix 0.3% by weight of antibacterial agent and 0.5% of EBS diffusion powder in a plastic container, then mix PC 91.9% and white oil 1% in another plastic container, then mix the antibacterial agent and plastic particles with Put C223A 6%, 1010 0.2%, and 168 0.1% into the high-speed mixer, and continue mixing at room temperature for 4 minutes. Afterwards, the mixed materials are put into the hopper of the twin-screw extruder, melted and blended, extruded and granulated to form a composite material. Among them, the temperature settings of each heating zone of the screw are: zone 1 temperature: 235°C, zone 2: 240°C, zone 3: 240°C, zone 4: 230°C, head: 235°C, residence time 1-2min, pressure is 15MPa.

Embodiment 3

[0034] Mix 0.5% by weight of antibacterial agent and 0.5% of EBS diffusion powder in a plastic container, then mix PC 91.7% and white oil 1% in another plastic container, then mix the antibacterial agent and plastic particles with Put C223A 6%, 1010 0.2%, and 168 0.1% into the high-speed mixer, and continue mixing at room temperature for 4 minutes. Afterwards, the mixed materials are put into the hopper of the twin-screw extruder, melted and blended, extruded and granulated to form a composite material. Among them, the temperature settings of each heating zone of the screw are: zone 1 temperature: 235°C, zone 2: 240°C, zone 3: 240°C, zone 4: 230°C, head: 235°C, residence time 1-2min, pressure is 15MPa.

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Abstract

The invention discloses an antibacterial engineering plastics and preparation methods, its composition by weight ratio (%):Engineering Plastics 83-92% ; antimicrobial agent 0.3-1%; toughener 6-10%; dispersant 0.5-1% white oil 0.5- 2% ;antioxidant 0.2-0.6% and other additives 0.1-3 %.The invention using engineering plastics PC, PC / ABS alloy as the mainstay and high temperature processing can be added containing silver ion antimicrobial agent, plasticizer, antioxidants and other chemicals, by melt blending, extrusion and granulation. The function of these engineering plastics is to maintain lasting antibacterial, keep a good performance of the materials' physical and mechanical and have a simply process. The process of manufacturing the antibacterial engineering plastics have some steps as following.First of all, raw materials will be mixed according to the above ratio, and then enter the plastic extrusion machine, the temperature controlled at 220 -250 degree C and then granuled to get the antibacterial engineering plastics.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to an antibacterial engineering plastic and a preparation method thereof. Background technique [0002] PC (polycarbonate) is a kind of polymer containing carbonate in the molecular chain. It is one of the five general-purpose engineering plastics. Its output and consumption are second only to nylon engineering plastics, ranking second. PC / ABS (polycarbonate / acrylonitrile-styrene-butadiene copolymer) alloy is the main variety of PC alloy and an important engineering plastic alloy. PC / ABS alloy is the world's largest commercial polymer alloy. Modified PC has excellent comprehensive performance and is widely used in the fields of automobile industry, electronic and electrical industry, machinery industry and so on. [0003] Although PC materials and their alloys are widely used, with the continuous improvement of people's living standards, people's requirements for materia...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L55/02C08K5/524B29C47/40B29C47/92C08K3/08B29C48/04B29C48/92
CPCB29C47/92B29C48/92B29C2948/92704B29C48/04B29C2948/92895
Inventor 徐东贺永李红敏
Owner SHENZHEN KEJU NEW MATERIAL
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