Flame-retardant antibacterial carbonate composition for switch of fixed electric apparatus and manufacturing method thereof

A technology for electrical devices and compositions, which is applied in the field of flame-retardant and antibacterial carbonate compositions for fixed electrical device switches. Effect of strong antibacterial activity, good impact resistance and mechanical strength

Inactive Publication Date: 2011-11-23
ZHEJIANG EXPO NEW MATERIALS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The Chinese invention patent food-grade antibacterial polycarbonate plastic and its manufacturing method with the publication number CN 1454932A discloses a material prepared from polycarbonate and inorganic nano-antibacterial agent, but the material has no flame retardancy and does not meet GB2099. 1-2008 glow wire flame retardant requirements, need to improve its flame retardant performance, especially for thin-walled products

Method used

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  • Flame-retardant antibacterial carbonate composition for switch of fixed electric apparatus and manufacturing method thereof
  • Flame-retardant antibacterial carbonate composition for switch of fixed electric apparatus and manufacturing method thereof
  • Flame-retardant antibacterial carbonate composition for switch of fixed electric apparatus and manufacturing method thereof

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Embodiment Construction

[0018] See Example 1 and Example 2 in Table 1.

[0019] After drying the polycarbonate (PC) at 120°C for 4 hours, add the flame retardant, flame retardant synergist, and antibacterial agent to the high-speed mixer and stir for 5 minutes to mix it evenly to obtain a mixture. Put the above mixture into the double In the main feeding hopper of the screw extruder, the pellets are obtained through extrusion, drawing, cooling and pelletizing of the twin-screw extruder, that is, high flame-retardant and antibacterial polycarbonate. The working temperature of the twin-screw extruder can be 250-290° C., the screw speed is 150-400 RPM, and the length-to-diameter ratio (L / D) is 1:40.

[0020] The above-mentioned pellets were dried in an ordinary oven at 120°C for 4 hours, and then a test sample was prepared by an injection molding machine in accordance with the requirements of the ISO plastic testing standard.

[0021] The raw materials used in the embodiments of the present invention a...

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Abstract

The invention provides a flame-retardant antibacterial carbonate composition for a switch of a fixed electric apparatus. The flame-retardant antibacterial carbonate composition for the switch of the fixed electric apparatus is characterized by comprising the following raw materials in parts by weight according to proportion: 50-90 parts of polycarbonate, 0.5-10 parts of antibacterial agent, 0.01-10 parts of flame retardant and 0.01-5 parts of flame retardant synergist. Compared with the prior art, the composition provided by the invention not only has a stronger antibacterial activity and a good flame retardancy, but also has good impact resistance and mechanical strength; the composition is more suitable for thin-walled switches of the fixed electric apparatuses for home uses and similar applications and the composition is safe and antibacterial. Meanwhile, the composition provided by the invention has the advantages of simple product processing technology and wider application range, and satisfies the general trend of the social development.

Description

technical field [0001] The invention relates to a flame-retardant and antibacterial polycarbonate material, in particular to a flame-retardant and antibacterial carbonate composition for a switch of a fixed electrical device and a preparation method thereof. Background technique [0002] With the rapid development of my country's economy, the application of engineering plastics in the electrical and electronic industry has grown rapidly. Household and similar fixed electrical device switches, commonly known as wall switches, belong to building electrical appliances. They are essential for connecting power sources and electrical equipment, and are widely used in homes and public places. The domestic wall switch industry has developed very fast in the past 10 years, with an average annual growth rate of more than 20%, and the development prospect is very promising. [0003] Wall switches are widely used, and their safety performance is directly related to the safety of people...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L27/18C08K3/22
Inventor 秦学涛
Owner ZHEJIANG EXPO NEW MATERIALS CO LTD
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