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Effect of Novel filler Fly Ash Based Calcium Silicate(FACS) on Sizing efficiency and the Corresponding Mechanism
  
DOI：10.11980/j.issn.0254-508X.2014.07.001
Key Words:fly ash based calcium silicate  filled paper  adsorption  AKD sizing efficiency
Fund Project:本课题受到国家自然科学基金（No.31170560）及陕西科技大学研究生创新基金的资助。
Author NameAffiliation
郝　宁 陕西科技大学轻工与能源学院，陕西省制浆造纸重点实验室，教育部轻化工助剂化学与技术重点实验室，陕西西安，710021 
张美云 陕西科技大学轻工与能源学院，陕西省制浆造纸重点实验室，教育部轻化工助剂化学与技术重点实验室，陕西西安，710021 
吴　盼 陕西科技大学轻工与能源学院，陕西省制浆造纸重点实验室，教育部轻化工助剂化学与技术重点实验室，陕西西安，710021 
王　建 陕西科技大学轻工与能源学院，陕西省制浆造纸重点实验室，教育部轻化工助剂化学与技术重点实验室，陕西西安，710021 
宋顺喜 陕西科技大学轻工与能源学院，陕西省制浆造纸重点实验室，教育部轻化工助剂化学与技术重点实验室，陕西西安，710021 
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Abstract:Impact of FACS filler on AKD sizing efficiency was compared with PCC and GCC. The sizing mechanism was investigated and the methods to improve sizing efficiency were proposed. Results showed that FACS filler adsorbed much more AKD and the paper filled with FACS had lower sizing efficiency compared with PCC and GCC at the same AKD dosage. We found that the efficiency of sizing could be improved by increasing drying temperature. But the sizing degree reduced slightly when temperature was above 100℃. Fluidity of AKD increased due to the increasing of temperature and the AKD adsorbed by FACS filler overflowed from the pores then flowed onto the surface of fibers, the sizing degree was improved. Using the FACS filler pre-adsorbed with AKD as filler could achieve sizing purpose at the same time. The sizing efficiency could be strengthened by using PAE and CS with dosages of 0.1% and 1% respectrely.
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