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Study on the Properties of Waste Paper Fiber/Starch Composite Foam-based on Thermally Expandable Microsphere Foam Material
Received:August 05, 2023  
DOI：10.11980/j.issn.0254-508X.2024.01.012
Key Words:corn starch  waste paper fiber  thermally expandable microsphere  foam material
Fund Project:陕西省科技厅重点研发项目（2021SF-448）；陕西省教育厅重点科研计划项目（20JY051）。
Author NameAffiliationPostcode
ZHANG Xiaolin* Faculty of Printing， Packaging and Digital Media Technology， Xi’an University of Technology，Xi’an， Shaanxi Province， 710048 710048
CHEN Chao Faculty of Printing， Packaging and Digital Media Technology， Xi’an University of Technology，Xi’an， Shaanxi Province， 710048 710048
LI Na Faculty of Printing， Packaging and Digital Media Technology， Xi’an University of Technology，Xi’an， Shaanxi Province， 710048 710048
XIONG Lizhen Faculty of Printing， Packaging and Digital Media Technology， Xi’an University of Technology，Xi’an， Shaanxi Province， 710048 710048
ZHOU Ziang Faculty of Printing， Packaging and Digital Media Technology， Xi’an University of Technology，Xi’an， Shaanxi Province， 710048 710048
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Abstract:In this paper， DPWPF/CS composite foams were prepared by heating baking with corn starch （CS） and digital printing waste paper fiber （DPWPF） as the substrate and thermally expandable microsphere （EHM204） as the blowing agent， and the effects of the DPWPF dosage on various properties of DPWPF/CS composite foams were investigated. The results showed that thermally expandable microspheres could be used as foaming agents in the preparation of DPWPF/CS composite foaming materials， and the addition of appropriate amount of DPWPF could improve the mechanical properties of starch-based foaming materials， and when the dosage of DPWPF was 15% （with respect to the mass of CS）， the prepared foaming materials had the best overall performances， with the density of 0.66 g/cm3， foaming rate of 70%， hardness of 70.00 HC ， elastic specific energy of 14.25×104 J/m3， buffer coefficient of 4.21， and resilience of 95.1%.
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