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Study on Preparing Technology of LCD Glass Spacer Paper
  
DOI：10.11980/j.issn.0254-508X.2017.10.003
Key Words:beating degree  air permeability  wet web strength  debonding agent
Fund Project:本课题由陕西科技大学学术带头人团队基金项目（2013XSD25）资助。
Author NameAffiliation
徐永建 陕西科技大学轻工科学与工程学院，陕西省造纸技术及特种纸品开发重点实验室，轻化工程国家级实验教学示范中心，陕西西安，710021 
刘芬芬 陕西科技大学轻工科学与工程学院，陕西省造纸技术及特种纸品开发重点实验室，轻化工程国家级实验教学示范中心，陕西西安，710021 
赵　伟 陕西科技大学轻工科学与工程学院，陕西省造纸技术及特种纸品开发重点实验室，轻化工程国家级实验教学示范中心，陕西西安，710021 
李　坚 陕西科技大学轻工科学与工程学院，陕西省造纸技术及特种纸品开发重点实验室，轻化工程国家级实验教学示范中心，陕西西安，710021 
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Abstract:Air permeability is an important index of LCD glass spacer paper. The contradiction among the beating degree of fibers, wet web strength and air permeability affect the preparing of LCD glass spacer paper, in order to improve the air permeability of LCD glass spacer paper without sacrificing the wet web strength, the influences of fiber type, beating degree and loading amount of debonding agent on the wet web strength and air permeability of paper were investigated. The experimental results showed that the wet web strength of LCD glass spacer paper could be effectively improved and the air permeability of paper could be ensured by improving the beating degree of the fibers and adding the debonding agent. When softwood pulp with beating degree of 33°SR and hardwood pulp with beating degree of 22°SR were mixed in the proportion ratio of 20∶80 and used as the raw material and adding 0.50% of debonding agent in papermaking, the wet web strength of LCD glass spacer paper was 0.83 kN/m and the air permeability of paper was 162.6 μm/Pa·s, which met the requirements of LCD glass spacer paper in terms of wet web strength and air permeability of paper．
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