标题: A Multifunctionalized CO<sub>2</sub>-Fixing Resin Transforms Paper to High-Strength and Flame-Retardant Plastic Substitutes
作者: Chen, JQ (Chen, Junqing); Yang, XX (Yang, Xinxin); Yu, L (Yu, Le); Wang, YH (Wang, Yongheng); Li, JJ (Li, Jingjing); Wu, YY (Wu, Yuying); Qi, LH (Qi, Luhe); Chen, L (Chen, Lu); Huang, J (Huang, Jing); Lu, ZY (Lu, Ziyang); Chen, C (Chen, Chang); Gao, EL (Gao, Enlai); Liu, H (Liu, He); Chen, CJ (Chen, Chaoji)
来源出版物: ADVANCED FUNCTIONAL MATERIALS 卷: 35 期: 32 DOI: 10.1002/adfm.202419554 Early Access Date: JUN 2025 Published Date: 2025 AUG
摘要: In the plastic industry, replacing petrochemical-based polymers with naturally occurring bio-polymers (represented by cellulose), is a very promising route to circumvent the plastic pollution issue. However, the implementation of this is severely hindered by the high water affinity and flammability of such materials. Here, a verstile non-isocyanate polyurethane (NIPU) formulation composed of a CO2-based cyclic carbonate compound, a reactive amino-functionalized silicone oil concurrently capable of providing water-resistance and a flame-retardant moiety is designed. Compositing it with conventional cellulose paper (cellulose macrofiber network, CMN), a nonflammable and mechanically strong cellulose macrofiber network-based biocomposite (CMN-Biocomposite) can be easily obtained via transcarbamoylation reaction. Other than hydrogen bonding interaction among various components of CMN-Biocomposite, the intermolecular bond exchange mechanism between the dynamic carbamate moiety and hydroxyl of the cellulose is also experimentally and computationally determined as the governing factor for the high tensile strength of up to 57.9 MPa. Additionally, benefiting from the dynamic nature of the carbamate bond, the CMN-Biocomposite's processability and biodegradability outperform most petrochemical-based plastics. The superiority of the proposed synthetic strategy in achieving the long-term carbon neutrality goal by CO2 fixation and excellent performance for plastic applications make the CMN-Biocomposite a very promising alternative to conventional plastics.
作者关键词: biodegradability; biocomposite; CO2; flame retardancy; high strength
KeyWords Plus: CELLULOSE; POLYMERIZATION
地址: [Chen, Junqing; Yu, Le; Wu, Yuying; Qi, Luhe; Chen, Lu; Huang, Jing; Lu, Ziyang; Chen, Chaoji] Wuhan Univ, Hubei Prov Engn Res Ctr Emerging Funct Coating Mat, Sch Resource & Environm Sci, Hubei Biomass Resource Chem & Environm Biotechnol, Wuhan 430079, Peoples R China.
[Yang, Xinxin; Li, Jingjing; Liu, He] Chinese Acad Forestry, Inst Chem Ind Forestry Prod, Natl Engn Res Ctr Low Carbon Proc & Utilizat Fores, Nanjing 210042, Peoples R China.
[Wang, Yongheng; Gao, Enlai] Wuhan Univ, Sch Civil Engn, Dept Engn Mech, Wuhan 430072, Hubei, Peoples R China.
[Chen, Chang] Huazhong Agr Univ, State Environm Protect Key Lab Soil Hlth & Green R, Wuhan 430070, Peoples R China.
通讯作者地址: Chen, CJ (通讯作者)，Wuhan Univ, Hubei Prov Engn Res Ctr Emerging Funct Coating Mat, Sch Resource & Environm Sci, Hubei Biomass Resource Chem & Environm Biotechnol, Wuhan 430079, Peoples R China.
Liu, H (通讯作者)，Chinese Acad Forestry, Inst Chem Ind Forestry Prod, Natl Engn Res Ctr Low Carbon Proc & Utilizat Fores, Nanjing 210042, Peoples R China.
Gao, EL (通讯作者)，Wuhan Univ, Sch Civil Engn, Dept Engn Mech, Wuhan 430072, Hubei, Peoples R China.
电子邮件地址: enlaigao@whu.edu.cn; liuheicifp@caf.ac.cn; chenchaojili@whu.edu.cn
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