Design and synthesis of bactericidal block copolymer for preparing durably antibacterial PA6 fibre

Micro & nano letters

article

Shanshan Yin¹  Xin Zhang¹  Yang Meng¹  Juanjuan Su¹  Jian Han¹ 

[1] Zhejiang Provincial Key Laboratory of Industrial Textile Materials & Manufacturing Technology, College of Materials and Textiles, Zhejiang Sci-Tech University

关键词: microorganisms;    pyrolysis;    melt spinning;    polymer fibres;    polymer blends;    contact angle;    antibacterial activity;    polymerisation;    durability;    biotechnology;    polymer fibres;    antibacterial properties;    4-vinyl pyridine;    fluorine-containing monomers;    acrylic acid monomers;    quaternary ammonium salt polymer;    antibacterial composite fibre;    water contact angle;    Nylon 6 matrix;    pure PA6 fibre;    antibacterial material;    bactericidal block copolymer;    antibacterial PA6 fibre;    E;    coli;    S;    aureus;    temperature 302.0 degC;    time 24.0 hour;    time 7.0 d;   

DOI  :  10.1049/mnl.2019.0327

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

Polymer fibres are widely used in various materials in contact with the human body. As bacterial contamination may lead to the emergence of disease, it is necessary to provide fibres with durably antibacterial properties. In this work, based on 4-vinyl pyridine, fluorine-containing monomers and acrylic acid monomers, new quaternary ammonium salt polymer containing fluorine (NP) were prepared by solution polymerisation, and then the antibacterial composite fibre was prepared by melt spinning of the NP (9 wt%) and Nylon 6 fibre (PA6). The structure and properties of NP and composite fibres were characterised, respectively. The results indicated that the water contact angle of NP reached 104°, the pyrolysis temperature was 302°C, and the interface interaction between NP and PA6 was good, which could achieve more uniform dispersion in Nylon 6 matrix. In addition, the composite fibre decreased obviously the number of colony-forming units within 24 h (the bactericidal rate was 99.99% against E. coli and 99.81% against S. aureus ) compared with pure PA6 fibre. The composite fibre was a good durably antibacterial material, which could still inactivate over 96% inoculated E. coli and S. aureus after washing 7 days.

【 授权许可】

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