纸张干燥特性曲线影响因素实验研究

陈晓彬; 王宇航; 何耀辉; 董云渊; 郑启富; 李继庚; 刘焕彬

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Experimental Study on Influence Factors of Paper Drying Characteristic Curve

DOI：10.11981/j.issn.1000-6842.2019.03.50

Key Words:paper drying; drying characteristic curve; influence factors

Fund Project:浙江省自然科学基金/青年基金项目（LQ18B060003）；广东省绿色化学产品技术重点实验室开放基金资助项目（GC201809）。

Author Name	Affiliation
CHEN Xiaobin^*	College of Chemical and Material Engineering， Quzhou University， Quzhou， Zhejiang Province， 324000 State Key Lab of Pulp and Paper Engineering， South China University of Technology， Guangzhou， Guangdong Province， 510640
WANG Yuhang	College of Chemical and Material Engineering， Quzhou University， Quzhou， Zhejiang Province， 324000
HE Yaohui	College of Chemical and Material Engineering， Quzhou University， Quzhou， Zhejiang Province， 324000
DONG Yunyuan	College of Chemical and Material Engineering， Quzhou University， Quzhou， Zhejiang Province， 324000
ZHENG Qifu	College of Chemical and Material Engineering， Quzhou University， Quzhou， Zhejiang Province， 324000
LI Jigeng	State Key Lab of Pulp and Paper Engineering， South China University of Technology， Guangzhou， Guangdong Province， 510640
LIU Huanbin	State Key Lab of Pulp and Paper Engineering， South China University of Technology， Guangzhou， Guangdong Province， 510640

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Abstract:

The effects of fiber material， paper basis weight， pulp beating degree， pressing pressure and drying temperature on paper drying characteristic curve were researched in the study. The experimental results showed that: different fiber material and pulp beating degree had little influence on the paper drying characteristic curve， but pulp beating degree affected the initial moisture content of paper drying， the higher pulp beating degree， the higher the initial moisture content was. Paper basis weight had obvious influence on paper drying characteristic curve because of its positive corrilation with paper thickness， the greater the paper basis weight， the harder it was to dry. Pressing pressure not only affected the paper initial moisture content， but also accelerated the drying process. The possible reason was that after the paper was pressed， part of the capillary water which is difficult to dry changed to free water which is easy to dry. Because of the coupling process of heat and mass transfer in paper drying， the higher drying temperature， the greater heat and mass transfer power， and the easier drying occurs．

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