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| AKD Sizing Efficiency of Paper Filled with Causticizing Calcium Carbonate |
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| DOI：10.11980/j.issn.0254-508X.2014.09.002 |
| Key Words:causticizing calcium carbonate sizing efficiency AKD filler |
| Fund Project:本课题得到“十二五”国家科技支撑项目（2012BAD23B0201）、陕西科技大学研究基金（BJ12-16）及陕西省科技厅重点实验室项目的资助。 |
| Author Name | Affiliation | | 刘 羚1 | 1.陕西科技大学轻工与能源学院,陕西西安,710021 | | 王 建1,2 | 1.陕西科技大学轻工与能源学院,陕西西安,710021
2.陕西省造纸技术及特种纸品开发重点实验室,陕西西安,710021 | | 羿克庆1 | 1.陕西科技大学轻工与能源学院,陕西西安,710021 | | 王权科3 | 3.河南漯河银鸽实业投资股份有限公司,河南漯河,462000 |
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| Abstract:Causticizing calcium carbonate (CCC) known as white clay, can be used to replace precipitated calcium carbonate(PCC) as paper filler, which is of benefit to save resources and prevent secondary pollution. However, compared with the PCC, CCC can deteriorate the sizing efficiency of alkyl ketene dimer(AKD), thereby the application of the CCC was limited. This paper studied the reason of lower sizing efficiency of AKD when CCC was used as a filler. The results showed that the greater amounts of AKD adsorbed by CCC caused the lower AKD sizing efficiency. The irregular CCC with higher BET surface area and BJH pore volume resulted in higher adsorption. On the contrary, the spindle like or needle like CCC had lower BET surface area and BJH pore volume, and its adsorption amount of AKD was low, so the AKD sizing efficiency in the paper filled with those CCC was higher. |
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