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An antibacterial and anti-mildew agent for paper prepared using chitosan modified by nano-TiO_2

ZHAO Yan SU HaiJia TAN TianWei(Beijing Key Laboratory of Bioprocess,Beijing University of Chemical Technology,Beijing,100029,China)  
A novel antibacterial and anti-mildew agent(AAA)was prepared using chitosan modified by nano-TiO2,and the anti-mildew behavior of paper treated with this material was studied under natural illumination.The paper treated with the novel antibacterial and anti-mildew agent showed excellent anti-mildew activity,with the bactericidal ratio of Aspergillus niger reaching 99.99% after 24 h.In addition,the livability of Aspergillus niger on the surface of paper treated with the AAA was studied by the AATCC-100 method,and it was found that Aspergillus niger could not survive on the surface of paper treated with the agent.
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