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Improvement of Paper Properties with PCC Modified by Sodium Alginate
  
DOI：10.11980/j.issn.0254-508X.2012.09.004
Key Words:sodium alginate  precipitated calcium carbonate  sizing  tensile strength
Fund Project:本课题为国家自然科学基金资助项目（20976099）和山东省自然科学基金资助项目（ZR2010CM008）。
Author NameAffiliation
丁明曌 山东轻工业学院制浆造纸科学与技术教育部重点实验室，山东济南，250353 
刘温霞 山东轻工业学院制浆造纸科学与技术教育部重点实验室，山东济南，250353 
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Abstract:Adding calcium carbonate fillers in paper products can save energy and cost, improve paper properties, and increase productivities. In this paper, sodium alginate was employed to modify precipitated calcium carbonate(PCC), the sizing performance and tensile property of the papers filled with the modified PCC were investigated. The results indicated that PCC modified by sodium alginate can remarkably enhance the sizing performance and tensile property of PCC filled paper when the conditions are as follows: the mass ratio of sodium alginate to PCC is 1∶140， agitating time is 5 min, and the amount of aluminum salt is 2% on PCC.
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