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Impact of Debonding Agent on the Fluff Pulp and Its Working Mechanism
  
DOI：10.11980/j.issn.0254-508X.2013.11.004
Key Words:debonding agent  fluff pulp  SEM  fluff pulp performance
Fund Project:本课题受国家自然科学基金项目(31170559)、陕西科技大学学科带头人培育计划项目(20876092)资助。
Author NameAffiliation
徐永建1 1.陕西科技大学轻工与能源学院，陕西省造纸技术及特种纸品开发重点实验室，陕西西安，710021 
王　倩1 1.陕西科技大学轻工与能源学院，陕西省造纸技术及特种纸品开发重点实验室，陕西西安，710021 
王　皎1 1.陕西科技大学轻工与能源学院，陕西省造纸技术及特种纸品开发重点实验室，陕西西安，710021 
朱振峰2 2.陕西科技大学材料科学与工程博士后流动站，陕西西安，710021 
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Abstract:The impact of debonding agent on the fluff pulp and its working mechanism were studied by using SEM to observe the debonding agent on the surface of fibers. The results showed that the burst index of the fluff pulp board was 0.59 kPa·m2/g, the density was 0.51 g/cm3 and dry filling ability was 24.7 cm3/g, and the burst index and absorbing time of fluff pulp decreased by 30.6% and 44.7% respectively when adding 2.58% of debonding agent, these properties were very similar to that of the imported product. The data of absorbing time 2.1 s and absorbance amount 8.0 g/g were as the same as the national superior product specification. The observation of SEM showed that twining between the fibers decreased at certain extent as debonding agents were on the rough surface of the fibers. On the other hand, the fiber bundle was covered by debonding agents, which could increase the distance between the fibers and prejudiced the forming of hydrogen bond. The bonding force between the fibers decreased, the fluffing energy of the pulp could be adjusted.
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