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Effect of Chloroform Modification on Strength Properties of the Aramid Paper
  
DOI：10.11980/j.issn.0254-508X.2011.11.008
Key Words:aramid fiber  chloroform solution  modification  strength properties  mechanism
Author NameAffiliation
张素风2 1.陕西科技大学造纸工程学院,陕西省造纸技术及特种纸品开发重点实验室, 陕西西安，710021 
朱光云2 1.陕西科技大学造纸工程学院,陕西省造纸技术及特种纸品开发重点实验室, 陕西西安，710021 
刘　文1 2.广东省造纸研究所,广东广州，510300 
张美云2 1.陕西科技大学造纸工程学院,陕西省造纸技术及特种纸品开发重点实验室, 陕西西安，710021 
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Abstract:The optimum parameters of chloroform modification were obtained via orthogonal experiments: aramid fibrids were modified by saturated chloroform solution in 11.10% ethanol solution for 25min, and washed twice by deionized water, then mixed with non-modified aramid fiber to make sheets. After the modification under this condition, the paper tensile strength index increased by 65.5%. The mechanism was analyzed by using IR and XPS, the results indicated that some carbonyl groups and amino groups were converted into hydroxyl groups after modification, which increased bonding force between fibers and improved strength properties of the aramid paper.
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