Chitosan microsphere loaded nano silver antibacterial polypropylene material, composite antibacterial agent and preparation method thereof

Abstract

The invention discloses a chitosan microsphere loaded nano silver antibacterial polypropylene material, a composite antibacterial agent and a preparation method thereof, belonging to the field of polymer material modification. The preparation method of the chitosan microsphere loaded nano silver antibacterial polypropylene material comprises the following steps of: (1) synthesizing a chitosan microsphere / nano silver composite antibacterial agent; and (2) blending the composite antibacterial agent and a polypropylene resin matrix to prepare the antibacterial polypropylene material. The composite antibacterial agent takes chitosan microspheres as carriers, and nano silver is loaded on the chitosan microspheres; and the composite antibacterial agent has the advantages of small dosage, environmental protection, low price, excellent and lasting antibacterial performance and the like, and the antibacterial polypropylene material prepared from the composite antibacterial agent not only has strong antibacterial performance, but also has improved mechanical performance. In addition, the composite antibacterial agent and antibacterial polypropylene material have simple preparation process and easy operation, are suitable for industrial application, and have high economic and social values.

Description

technical field [0001] The invention belongs to the field of polymer material modification, and specifically relates to a chitosan microsphere-loaded nano-silver antibacterial polypropylene material, a composite antibacterial agent and a preparation method thereof. The antibacterial polypropylene can be applied to various fields of production and life. Background technique [0002] Antibacterial materials refer to a new class of functional materials that can kill harmful bacteria or inhibit the growth and reproduction of bacteria. At present, the main objects used as antibacterial materials include textiles, plastics, ceramics, metals, coatings, etc. Among them, antibacterial plastics are more and more popular due to their wide application fields. Household appliances, sanitary ware, Children's toys have become a new development trend, and with the improvement of people's living standards, antibacterial plastics have received unprecedented attention and development. Polypro...

AI Technical Summary

Problems solved by technology

[0005] Based on the above factors, the present invention combines the characteristics of small size of nanomaterials, large specific surface area and high surface energy to provide a preparation method of nanocomposite antibacterial agent, and apply this antibacterial agent in the field of polymer materials. Related work has not yet been done at home and abroad. See the report