Environment-friendly plastic with antibacterial function and preparation method

• Main Authors: LI YAOFANG, HE HAOTONG, HE WANCHUN, HE YIMAO
• Format: Patent
• Language: Chinese; English
• Published: 26.07.2024
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

The invention relates to the technical field of antibacterial plastics, and discloses an environment-friendly plastic with an antibacterial function and a preparation method thereof.The environment-friendly plastic is prepared from, by weight, 0.5-10 parts of benzimidazolium salt modified starch, 0.2-0.6 part of an antioxidant and 89-99 parts of polyethylene, the benzimidazolium salt modified starch serves as a macromolecular biological antibacterial agent, the heat resistance and hot processing stability of the environment-friendly plastic are better, and the antibacterial function of the environment-friendly plastic is improved; the long-chain alkyl benzimidazolium salt has the advantages that the long-chain alkyl benzimidazolium salt is not easy to thermally decompose and cannot migrate and fall off from a polyethylene matrix in a long-term use process, alkyl cations of the long-chain alkyl benzimidazolium salt structure can interact with anions in bacterial cell membranes, the permeability of the bacteria