Toughening Effect and Flame-Retardant Behaviors of Phosphaphenanthrene/Phenylsiloxane Bigroup Macromolecules in Epoxy Thermoset
| Autor: | Shanglin Jin, Lijun Qian, Jianwei Hao, Yong Qiu, Feng Haisheng |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Polymers and Plastics
Chemistry Organic Chemistry Thermosetting polymer Izod impact strength test 02 engineering and technology Epoxy 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Toughening 0104 chemical sciences Inorganic Chemistry Chemical engineering visual_art Materials Chemistry visual_art.visual_art_medium Charring 0210 nano-technology Macromolecule Fire retardant |
| Zdroj: | Macromolecules. 51:9992-10002 |
| ISSN: | 1520-5835 0024-9297 |
| DOI: | 10.1021/acs.macromol.8b02090 |
| Popis: | A series of novel phosphaphenanthrene/phenylsiloxane bigroup macromolecules (DDSi-n) were synthesized and applied to obtain high-performance epoxy thermosets. DDSi-n macromolecules simultaneously enhanced the anti-impact and flame-retardant performance of epoxy thermosets. The impact strength of the DDSi-n-containing thermoset (DDSi-n/EP) was maximally increased by nearly 140% in 8% DDSi-1/EP because of the flexible phenylsiloxane block and the polar phosphaphenanthrene group interacting with matrix in DDSi-n macromolecules. Meanwhile, the evidently elevated anti-ignition and self-extinguishing performance, the suppressed combustion heat, and the enhanced charring capability of DDSi-n/EP were all caused by the flame-retardant group synergistic effect of phosphaphenanthrene and phenylsiloxane groups of DDSi-n macromolecules in thermosets. Compared with the individual phosphaphenanthrene or phenylsiloxane group in monogroup contrasts, the phosphaphenanthrene and phenylsiloxane groups in bigroup DDSi-n macro... |
| Databáze: | OpenAIRE |
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