High-effectively antibiotic polypropylene master batch and preparation thereof

Abstract

The invention relates to a highly efficient antibacterial polypropylene master batch and a preparation method, which are characterized in that the compositions comprise 60 per cent to 84 per cent of polypropylenes, 10 per cent to 30 per cent of antibacterial agents, 5 per cent to 10 per cent of comptatibilizers, 0.1 per cent to 2 per cent of dispersants and 0.1 per cent to 1 per cent of antioxidants in weight percentage. In the preparation method of the invention, the compostions are proportionally mixed in a high speed mixing machine for 2 to 5 minutes and then the obtained granulations are extruded using a screw extruder with a screw rotational speed ranging from 180r / min to 600r / min at a processing temperature ranging from 160 DEG C to 220 DEG C. The invention has the advantages that the invention has good dispersion and compatability, can be blended and injected with a plurality of resins, requires small addition, is characterized by lasting antibacterial effect for 20 years, and is suitable for antibacterial material products for various food apparatuses.

Description

technical field [0001] The invention relates to a high-efficiency antibacterial polypropylene masterbatch and a preparation method thereof. It has long-term antibacterial effect at a relatively low dosage, and can be used to manufacture polyethylene, polypropylene, and polystyrene products with antibacterial properties. It belongs to polymerization The field of material modification technology. technical background [0002] Materials such as polyethylene, polypropylene, polystyrene and styrene-butadiene-acrylonitrile are widely used in refrigerators, air conditioners, various food utensils, cosmetic containers or toy products. With the gradual improvement of people's awareness of health and returning to nature, the cleanliness requirements for these products are also getting higher and higher. Materials such as polyethylene, polypropylene, polystyrene and styrene-butadiene-acrylonitrile are not It has anti-bacterial and anti-mildew effects, but the direct addition of anti-b...

AI Technical Summary

Problems solved by technology

With the gradual improvement of people's awareness of health and returning to nature, the cleanliness requirements for these products are also getting higher and higher. Materials such as polyethylene, polypropylene, polystyrene and styrene-butadiene-acrylonitrile are not It has anti-bacterial and anti-mildew effects, but the direct addition of anti-bacterial powder has the disadvantage of poor dispersion, and the surface of the product has inconsistent anti-bacterial effects