Engineering sulfonated rigid organic particles for fire-safe polycarbonate combining high transparency and enhanced mechanical property
Article
Article Title | Engineering sulfonated rigid organic particles for fire-safe polycarbonate combining high transparency and enhanced mechanical property |
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ERA Journal ID | 3854 |
Article Category | Article |
Authors | Ye, Xiaodi, Sai, Ting, Wang, Bingtao, Li, Juan, Zhang, Chengfeng, Guo, Zhenghong and Huo, Siqi |
Journal Title | Chemical Engineering Journal |
Journal Citation | 516 |
Article Number | 163940 |
Number of Pages | 12 |
Year | 2025 |
Publisher | Elsevier |
Place of Publication | Netherlands |
ISSN | 1385-8947 |
1873-3212 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.cej.2025.163940 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S1385894725047758 |
Abstract | Despite great advances in overcoming the inherent flammability of polycarbonate (PC), it remains highly challenging to achieve a property portfolio of flame retardancy, mechanical properties and transparency. To ameliorate this issue, a sulfonate organic rigid particle (sSANNa) was synthesized by incorporating sodium sulfonate into the acrylonitrile-styrene copolymer (SAN) molecular chain. Only 0.5 wt% sSANNa endowed the resultant PC/0.5sSANNa composite with desired flame-retardancy, including limiting oxygen index (LOI) of 34.0 % and vertical burning (UL-94) V-0 rating, and well-preserved optical properties. The peak heat release rate (PHRR) and total smoke release (TSR) of PC/0.5sSANNa were respectively decreased by 23 % and 15 % compared to pure PC, attributing to the organic sulfonates promoting the formation of a denser char layer during combustion. Meanwhile, PC/0.5sSANNa showed an enhanced notch impact strength reaching 76.9 kJ·m−2 due to the craze induction mechanism of sSANNa and improved interfacial interaction between PC matrix and sSANNa. This work establishes a promising design strategy for creating transparent, flame-resistant yet tough PC composites by integrating sulfonate and organic rigid particles, expecting to broaden the high-tech applications of PC (e.g. transparent fireproofing board, covers for unmanned vehicles and architectural lighting equipment). |
Keywords | Polycarbonate; Rigid particle; Organic sulfonate; Flame retardancy |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 401609. Polymers and plastics |
Byline Affiliations | NingboTech University, China |
Zhejiang Sci-Tech University, China | |
School of Engineering | |
Centre for Future Materials |
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