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Annealing Treatment Assisted Amylase Hydrolysis for Preparation of Surface Sizing Starch and Its Impact on Mechanical Properties of Paper
Received:March 28, 2024  
DOI：10.11980/j.issn.0254-508X.2024.11.010
Key Words:corn starch  annealing treatment  amylase hydrolysis  surface sizing starch  mechanical property
Fund Project:浙江景兴纸业股份有限公司校企合作项目。
Author NameAffiliationPostcode
WU Zikun Tianjin Key Lab of Pulp and Paper， Tianjin University of Science & Technology， Tianjin， 300457
State Key Lab of Biobased Fiber Manufacturing Technology， Tianjin University of Science & Technology， Tianjin， 300457 		300457
LIU Liqin* Tianjin Key Lab of Pulp and Paper， Tianjin University of Science & Technology， Tianjin， 300457
State Key Lab of Biobased Fiber Manufacturing Technology， Tianjin University of Science & Technology， Tianjin， 300457 		300457
LU Bin Zhejiang Jingxing Paper Co.， Ltd.， Pinghu， Zhejiang Province， 314214 314214
CHENG Zhengbai Zhejiang Jingxing Paper Co.， Ltd.， Pinghu， Zhejiang Province， 314214 314214
LYU Xiaofeng Zhejiang Jingxing Paper Co.， Ltd.， Pinghu， Zhejiang Province， 314214 314214
CAO Haibing Zhejiang Jingxing Paper Co.， Ltd.， Pinghu， Zhejiang Province， 314214 314214
AN Xingye* Tianjin Key Lab of Pulp and Paper， Tianjin University of Science & Technology， Tianjin， 300457
State Key Lab of Biobased Fiber Manufacturing Technology， Tianjin University of Science & Technology， Tianjin， 300457 		300457
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Abstract:In this study， corn starch was first subjected to the annealing treatment， and then the surface-sized starch was prepared by amylase hydrolysis method. This study specifically discussed the physicochemical properties of modified starch and its impact on the mechanical properties of paper. The results showed that annealing treatment could significantly regulate the content of amylose and the crystalline structure of starch. Compared with corn starch， the surface-sized starch prepared from annealed 75% moisture content，60 ℃ for 24 h could effectively improve the mechanical property of paper， with a maximum increase of approximately 3.7% in ring crush index， 10.5% in transverse tensile index， 3.4% in longitudinal tensile index， and 10% in burst index. The innovative research results provided a deep understanding of the enhanced mechanism of surface-sized starch on the mechanical properties of paper in terms of short-range order， which provided theoretical basis and technical support for the preparation of surface-sized starch assisted by annealing treatment.
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