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Effect of Polyacrylate on the Properties of Paper-based Permeable Materials
Received:March 23, 2021  
DOI：10.11981/j.issn.1000-6842.2021.04.18
Key Words:paper-based permeable material;hydrophobic regulation;polyacrylate;water permeation rate
Fund Project:国家重点研发计划资助项目（2017YFB0308200）。
Author NameAffiliationPostcode
CHI Kai Tianjin Key Laboratory of Pulp ＆ Paper， College of Light Industry Science and Engineering， Tianjin University of Science ＆ Technology， Tianjin， 300457 300457
OU Zhangming Tianjin Key Laboratory of Pulp ＆ Paper， College of Light Industry Science and Engineering， Tianjin University of Science ＆ Technology， Tianjin， 300457 300457
SHI Shuang Tianjin Key Laboratory of Pulp ＆ Paper， College of Light Industry Science and Engineering， Tianjin University of Science ＆ Technology， Tianjin， 300457 300457
WANG Hui Tianjin Key Laboratory of Pulp ＆ Paper， College of Light Industry Science and Engineering， Tianjin University of Science ＆ Technology， Tianjin， 300457 300457
XUE Kui Tianjin Key Laboratory of Pulp ＆ Paper， College of Light Industry Science and Engineering， Tianjin University of Science ＆ Technology， Tianjin， 300457 300457
LIU Zehua Tianjin Key Laboratory of Pulp ＆ Paper， College of Light Industry Science and Engineering， Tianjin University of Science ＆ Technology， Tianjin， 300457 300457
WANG Gaosheng Tianjin Key Laboratory of Pulp ＆ Paper， College of Light Industry Science and Engineering， Tianjin University of Science ＆ Technology， Tianjin， 300457 300457
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Abstract:
      The effects of polyacrylate added to the pulp as hydrophobic regulator on the mechanical properties and permeability of paper-based permeable materials were studied by using waste corrugated box as fiber material. The mechanism of hydrophobic regulator affecting the water permeability was analyzed according to the Washburn equation. The results showed that the appropriate additive amount of hydrophobic regulator can not only enhance the strength of paper-based permeable materials， but also reduce its water permeability. The hydrophobic regulator formed membranous connection on the fiber surface and between the fibers. With the increase in the amount of hydrophobic regulator added， the average pore size and porosity of paper-based permeable materials decrease while the hydrophobic performance increased. Moreover， it was found that the decrease of the average pore size and the enhancement of hydrophobic properties were the main reasons for the decrease of the water permeation rate of paper-based permeable materials.
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