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Influence of Using Blended Attapulgite Clay and Calcium Carbonate as Filler on the Paper Strength Property
  
DOI：10.11980/j.issn.0254-508X.2013.02.003
Key Words:attapulgite clay  calcium carbonate  blending filler  papermaking
Fund Project:国家自然科学基金资助项目(Grant No.21174046, 51174096)。
Author NameAffiliation
韩　群 淮阴工学院江苏省凹土资源利用重点实验室，江苏淮安，223003 
刘　莉 淮阴工学院江苏省凹土资源利用重点实验室，江苏淮安，223003 
芮源隆 淮阴工学院江苏省凹土资源利用重点实验室，江苏淮安，223003 
吴　剑 淮阴工学院江苏省凹土资源利用重点实验室，江苏淮安，223003 
金叶玲 淮阴工学院江苏省凹土资源利用重点实验室，江苏淮安，223003 
陈　静* 淮阴工学院江苏省凹土资源利用重点实验室，江苏淮安，223003 
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Abstract:The effect of using blended attapulgite clay, calcium carbonate, talc and wollastonite as filler on the paper strength property was studied. The results showed that the paper strength property improved significantly when using blended filler instead of using single filler, practically the blended filled of attapulgite clay and calcium carbonate improved the strength property evidently. Tensile index of the paper adding 10% blended filler in which the ratio of attapulgite clay and calcium carbonate was 1∶2 was 65.6% higher than that of using calcium carbonate only, and 56.9% higher than that of only using attapulgite clay. Particle analysis and SEM observation indicated that the compact effect of blended fillers with different particle size and morphological features was one of reasons of strength property improvement; another reason was ascribe to the high length/diameter ratio and easy hydration of attapulgite clay.
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