An antibacterial polypropylene composition and its preparation method and application

Abstract

The invention provides an antibacterial polypropylene compound which is prepared from the following raw materials in parts by weight: 100 parts of polypropylene resin, 15-30 parts of filling agent, 0.5-1.2 part of antibacterial agent, 3-8 parts of toughening agent, 0.2-0.5 part of coupling agent and 0.1-0.3 part of anti-oxidizing agent, wherein nanometer talcum powder is used as the filling agent; a silver-loaded antibacterial agent based on modified attapulgite is used as the antibacterial agent; styrene-itaconic acid-acrylic copolymer is used as the toughening agent; 3-aminopropyl triethoxy silane is used as the coupling agent; a mixture of antioxidant 1010 and antioxidant 618 mixed at the mass ratio of 1:1 is used as the anti-oxidizing agent. The antibacterial polypropylene compound and the preparation method thereof have the advantages of excellent dispersity, uniform grain size distribution, high stability and low preparation cost in the manner of using the modified attapulgite for preparing the silver-loaded antibacterial agent; the antibacterial polypropylene compound can be used for preparing a dinning chair for children; the anti-microbial rate of the prepared dinning chair for children for three bacteria, namely, escherichia coli, mold and staphylococcus aureus, can reach up to 98% or above.

Description

technical field [0001] The invention belongs to the field of antibacterial plastic preparation, and in particular relates to an antibacterial polypropylene composition, a preparation method and application thereof. Background technique [0002] In recent years, with the improvement of people's living standards and the increasing awareness of health and hygiene, antibacterial requirements have been put forward for plastic products, especially daily necessities related to children's hygiene and safety, such as children's dining chairs and toys. Polypropylene is one of the most widely used varieties of general-purpose plastics, and its antibacterial modification has always been a research hotspot in the field of antibacterial. [0003] The preparation of the antibacterial polypropylene composition is mainly realized by adding a certain amount of antibacterial agent in the polypropylene granulation process. There are many types of antibacterial agents, mainly including inorgani...

AI Technical Summary

Problems solved by technology

Organic antibacterial agents have the advantages of fast antibacterial speed and wide range, but they also have disadvantages such as poor heat resistance, easy leakage, not resistant to washing, short service life, high toxicity, and harmful to human body after long-term use.