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Preparation of Latex-modified GCC and Its Application in High-filler Papers
  
DOI：10.11980/j.issn.0254-508X.2014.06.001
Key Words:ground calcium carbonate  latex-modified  high filler
Author NameAffiliation
苏艳群1,2 1.中国制浆造纸研究院，北京，100102；2.制浆造纸国家工程实验室，北京，100102 
杨　扬1,2 1.中国制浆造纸研究院，北京，100102；2.制浆造纸国家工程实验室，北京，100102 
刘金刚1,2 1.中国制浆造纸研究院，北京，100102；2.制浆造纸国家工程实验室，北京，100102 
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Abstract:The latex-modified GCC was prepared. The properties of the modified GCC, as well as the strength and optical properties of the handsheets loaded with the modified GCC were investigated. The results indicated that over 99% of the latex was firmly and effectively coated on the surface of GCC. After the modification, the brightness of the GCC was slightly lower. Although the average particle size became bigger, the particle size distribution became narrower. Comparing with the unmodified GCC the modified GCC was quite effective in upgrading the strength property of the filled handsheets. In this experiment conditions, the ash content of the handsheets increased to 31.1% from 15.8% when the unmodified GCC filler was replaced by the modified GCC which was prepared with 2.0% latex dosage on the GCC the strength of the handsheets unchanged still.
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