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Study on Preparation and Properties of Polyaniline Cellulose Aerogel from Waste Paper
Received:September 05, 2022  
DOI：10.11980/j.issn.0254-508X.2023.06.003
Key Words:cellulose  polyaniline  aerogel  electromagnetic shielding
Fund Project:制浆造纸科学与技术教育部重点实验室开放基金（项目编号：ZR201901）；生物基材料与绿色造纸国家重点实验室开放基金（项目编号：ZZ20210122）。
Author NameAffiliationPostcode
GAO Shuai State Key Lab of Bio-based Materials and Green Papermaking， Qilu University of Technology （Shandong Academy of Sciences）， Ji’nan， Shandong Province， 250353 250353
LIU Shan* State Key Lab of Bio-based Materials and Green Papermaking， Qilu University of Technology （Shandong Academy of Sciences）， Ji’nan， Shandong Province， 250353
Key Lab of Pulp and Paper Science & Technology of Ministry of Education， Qilu University of Technology （Shandong Academy of Sciences）， Ji’nan， Shandong Province， 250353 		250353
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Abstract:In this study， the waste paper was used as a cellulose source（CEL） and polyaniline（PANI） as a conductive material to prepare PANI aerogel composite by in-situ polymerization. The density of the aerogel was 0.05 g/cm3 and it had electromagnetic shielding properties. The composition， morphology， thermal stability， and electromagnetic parameters of the composite aerogel materials were characterized by infrared spectroscopy （FT-IR）， scanning electron microscopy （SEM）， thermogravimetric analyzer （TG）， and vector network analyzer. The effects of aniline monomer dosage on the electromagnetic shielding properties of composite aerogel were investigated. The results showed that with the increase in aniline monomer dosage， the thermal stability of the composite aerogel was increased. When the monomer dosage of aniline was 30%， the thermal stability of the aerogel was high； when the frequency was 8.2 GHz， the shielding effectiveness （SE） was more than 9.5 dB.
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