Nanometer antibacterial sterilizing plastic mother material and preparing method thereof

Abstract

A mother nanoparticle of antibacterial disinfecting plastics is prepared from the TiO2 nanoparticles whose surface is modified by RE aluminate, plastic resin, EVA resin, white mineral oil, titanium white powder, and zinc stearate through proportionally and sequentially mixing, and granulating by extruding out. Its advantage is high antibacterial disinfecting effect.

Description

Technical field [0001] The invention relates to a nano-antibacterial and anti-virus plastic masterbatch, in particular to a nano-TiO 2 Powder nano antibacterial and antivirus plastic masterbatch. The invention also relates to a preparation method of the nano antibacterial and antivirus plastic masterbatch. Background technique [0002] Add nano TiO to plastic 2 It can significantly improve the mechanical properties of plastic materials, and at the same time endow products with certain antibacterial and endotoxin-decomposing functions. Therefore, nano-antibacterial and anti-virus plastics have good application prospects. The existing nano antibacterial and anti-virus plastic materials usually adopt two molding processes, one is to use nano TiO 2 The powder is directly added to the plastic raw material. The process is to simply use liquid paraffin, white mineral oil, etc. for surface bonding treatment, and then directly carry out molding processing; the other is to add nano...

AI Technical Summary

Problems solved by technology

Among the above processing techniques, the first technique is widely used because of its simple operation, but there are problems such as nano-powder agglomeration and uneven dispersion in plastic products; the second technique improves nano-TiO 2 The dispersion of the powder in the product, but because the melting performance of the masterbatch is poor during molding processing, and the melt viscosity after melting is high, the melting speed of the masterbatch is slow and the dispersion in the plastic melt is uneven , resulting in nano-TiO 2 The dispersion uniformity of particles in plastic products is not ideal

During the processing of the above process, due to the uneven dispersion of nano-powder and particle agglomeration, the color difference between different areas on the surface of plastic products and between batches is relatively large. In severe cases, appearance defects such as pitting can be found on the surface, which affects the performance of the product. And grade, at the same time the antibacterial effect and the effect of decomposing endotoxin also decline in varying degrees