Fabrication of Green Lignin-based Flame Retardants for Enhancing the Thermal and Fire Retardancy Properties of Polypropylene/Wood Composites
| Autor: | Mengbo Qian, Lina Liu, Pingan Song, Shenyuan Fu, Guobo Huang, Youming Yu |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Fabrication General Chemical Engineering chemistry.chemical_element macromolecular substances 02 engineering and technology 010402 general chemistry complex mixtures 01 natural sciences chemistry.chemical_compound Thermal Environmental Chemistry Lignin Thermal stability Composite material Polypropylene Renewable Energy Sustainability and the Environment fungi technology industry and agriculture food and beverages General Chemistry 021001 nanoscience & nanotechnology Nitrogen Copper 0104 chemical sciences chemistry 0210 nano-technology Fire retardant |
| Zdroj: | ACS Sustainable Chemistry & Engineering. 4:2422-2431 |
| ISSN: | 2168-0485 |
| DOI: | 10.1021/acssuschemeng.6b00112 |
| Popis: | Despite growing extensive applications, until now the poor thermal stability and flame retardancy properties of wood–plastic composites (WPC) remain effectively unsolved. Meanwhile, industrial lignin has emerged as a potential component for polymer composites due to many advantages including abundance, rich reactive functional groups, high carbon content and tailored capability for chemical transformations. Herein, we have fabricated one biobased flame retardant based on industrial lignin chemically grafted with phosphorus, nitrogen and copper elements, as the functional additive for the WPC. Compared with unmodified lignin (O-lignin), functionalized lignin (F-lignin) is more effective to improve the thermal stability and flame retardancy of WPC because of presence of the flame retardancy elements (P and N) and the catalytic effect of Cu2+ on the char-formation. The presence of F-lignin not only reduces the heat release rate, total heat release and slows down the combustion process but also decreases tota... |
| Databáze: | OpenAIRE |
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