Antibacterial transparent polystyrene material and preparation method thereof

Abstract

The invention discloses an antibacterial transparent polystyrene material and a preparation method thereof. The material is composed of the following raw materials by weight percent: 96 to 98 percent of polystyrene, 1 to 3 percent of TiO2 / ZnO composite antibacterial particles, 0.2 to 1 percent of coupling agent, 0.2 to 1 percent of dispersing agent, and 0.1 to 1 percent of antioxidant. The preparation method of the antibacterial transparent polystyrene material is as follows: premixing the components except polystyrene with a high-speed mixer; placing the mixed materials and the polystyrene into the high-speed mixer for mixing; and finally, melting and extruding the mixed materials through a double-screw extruding machine, and cooling and prilling to obtain the polystyrene material. According to the invention, the polystyrene material has an excellent antibacterial property and a good transparency, and the influence on the original mechanical property of matrix resin is tiny, so that the polystyrene material has a wide application prospect.

Description

Technical field [0001] The invention relates to an antibacterial transparent polystyrene material and a preparation method thereof, and belongs to the field of polymer modification and processing. Background technique [0002] As one of the five general plastics, polystyrene (PS) has the advantages of light weight, low price, good dimensional stability and electrical properties, transparent products, and easy processing and molding. It is widely used in automobiles, household appliances, instrument housings, and children's toys. , Office supplies, sports equipment, packaging and other fields. However, polystyrene products are easily contaminated by microorganisms during processing, production, transportation, storage and use, which will cause certain harm to people's health. With the continuous improvement of people's living standards and health awareness, the antibacterial properties of polystyrene are increasingly required, especially when used as daily necessities and childre...

AI Technical Summary

Problems solved by technology

For example, Chinese patent CN 101659773A discloses a nano-TiO 2 -polystyrene microsphere composite and its preparation method, yet its preparation process includes nano-TiO 2 Modification and preparation of polystyrene microspheres and TiO 2 Adsorbed on the surface of polystyrene microspheres, it is difficult to produce on a large scale

In addition, due to nano-TiO 2 The bactericidal performance of the antimicrobial is mainly due to the use of sunlight and the ultraviolet light in the lighting lamp to excite electrons to make transitions, and the utilization rate of light is not high, especially in the environment where light is lacking, its antibacterial effect is weak, so it needs to be modified and optimization

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