Preparation method of antibacterial mildew-proof polypropylene

Abstract

The invention discloses a preparation method of antibacterial and mildew-proof polypropylene, which comprises the following steps: synthesizing borneol and monomethyl fumarate into a composite antibacterial agent with antibacterial and mildew-proof characteristics by utilizing hydrolysis of cyanuric chloride, and grafting the antibacterial agent onto a polypropylene non-woven fabric by utilizing active groups such as hydroxyl and amino on chitosan as an intermediate bridge, so as to prepare the antibacterial and mildew-proof polypropylene. An antibacterial experiment proves that the antibacterial mildew-proof polypropylene disclosed by the invention has more than 99% of antibacterial effect on staphylococcus aureus, escherichia coli, pseudomonas aeruginosa, candida albicans and the like, and also has relatively strong anti-adhesion performance on aspergillus niger.

Description

technical field [0001] The invention relates to the field of polypropylene non-woven products, in particular to a preparation method of antibacterial and mildew-proof polypropylene. Background technique [0002] Polypropylene non-woven fabric, also known as polypropylene fiber, is a synthetic fiber obtained from isotactic polypropylene by melt spinning, and is also one of the four commonly used synthetic fibers in the world. Simple process, low product price, high strength, light relative density, colorless, odorless, non-toxic, heat resistance, electrical insulation, high-strength mechanical properties and many other excellent properties make it widely used in clothing, decorative materials, In the fields of construction, food packaging, pharmaceutical packaging, agriculture, forestry and fishery, medical and health, as polypropylene plays an increasingly important role in daily life, the industry has higher requirements for its performance, especially in the fields of pack...

AI Technical Summary

Problems solved by technology

[0004]Application No. 202011606761.3 Patent "An Antibacterial Polypropylene Non-woven Fabric and Its Preparation Method" Grafted quaternary on the surface of polypropylene by graft modification Ammonium salts and chitosan antibacterial agents improve the antibacterial performance of polypropylene, but although its antibacterial performance has reached more than 90%, it has not yet reached the super antibacterial performance of more than 99%. The patent application number 201910225042.8 "a straw polypropylene composite Materials and their preparation methods", using physical melt blending method to mix antibacterial agent and polypropylene raw materials together, and then extruding and granulating to prepare antibacterial polypropylene material, its antibacterial performance can reach 95% and above, but the antibacterial performance is not It has a stronger antibacterial performance of more than 99%, and the cost will increase because the amount of antibacterial agent used in the method of use will increase. The patent "long-lasting antibacterial polypropylene non-woven fabric and its preparation method" with application number 201911207640.9 uses the method of graft modification Antibacterial agents such as borneol, chitosan, and alkyl glucosamine are grafted onto polypropylene to obtain polypropylene products with excellent antibacterial properties, but the experiments of the present invention show that they have poor antibacterial properties against fungus Candida albicans

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