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首页> 美国卫生研究院文献>ACS Omega >Thermal Stability Pyrolysis Behavior and Fire-RetardantPerformance of Melamine Cyanurate@Poly(cyclotriphosphazene-co-44′-sulfonyl diphenol) Hybrid Nanosheet-ContainingPolyamide 6 Composites
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Thermal Stability Pyrolysis Behavior and Fire-RetardantPerformance of Melamine Cyanurate@Poly(cyclotriphosphazene-co-44′-sulfonyl diphenol) Hybrid Nanosheet-ContainingPolyamide 6 Composites

机译：热稳定性热解行为和阻燃性三聚氰胺三聚氰胺@聚（环三磷腈-co-44-磺酰基双酚）杂化纳米片的性能聚酰胺6复合材料

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摘要

A novel halogen-free highly cross-linked supramolecular poly(cyclotriphosphazene-co-4,4′-sulfonyl diphenol) (PZS)-functionalized melamine cyanurate (MCA) (MCA@PZS) hybrid nanosheet fire-retardant (FR) was synthesized and thoroughly characterized using scanning electron microscopy, Fourier-transform infrared (FTIR), X-ray diffraction, and X-ray photoelectron spectroscopy analyses. The polyamide 6 (PA6) composites comprising MCA, PZS, and the MCA@PZS hybrids were prepared via the melt-blending technique. The thermogravimetric analysis combined with FTIR and mass spectroscopy revealed that during thermal degradation, the PA6/MCA@PZS composites released less toxic gases and small organic volatile compounds than the neat PA6 and composites containing MCA or PZS solely. Moreover, compared to neat PA6, the PA6 composite with a 5 wt % MCA@PZS hybrid exhibited enhanced fire retardation properties, with a 29.4 and 32.1% decrease in the peak heat and total heat release rates, respectively. Besides, the PA6 composites with MCA@PZS-5% content achieved a V-0 rating in the UL-94 test. Finally, based on the obtained results from gaseous and condensed phases, the possible mechanism responsible forimproved FR properties of the PA6/MCA@PZS composites was proposed.
机译：合成了一种新型的无卤高交联超分子聚（环三磷腈-co-4,4'-磺酰基双酚）（PZS）-官能化的三聚氰胺氰尿酸酯（MCA）（MCA @ PZS）杂化纳米片阻燃剂（FR），使用扫描电子显微镜，傅立叶变换红外（FTIR），X射线衍射和X射线光电子能谱分析对其进行了彻底的表征。通过熔融共混技术制备了包含MCA，PZS和MCA @ PZS杂化物的聚酰胺6（PA6）复合材料。热重分析结合FTIR和质谱分析表明，在热降解过程中，PA6 / MCA @ PZS复合材料释放的毒性气体和有机挥发性化合物少于纯PA6和仅包含MCA或PZS的复合材料。此外，与纯PA6相比，具有5 wt％MCA @ PZS杂化物的PA6复合材料表现出增强的阻燃性，峰值热和总放热率分别降低了29.4％和32.1％。此外，MCA @ PZS-5％含量的PA6复合材料在UL-94测试中达到V-0等级。最后，基于从气相和冷凝相获得的结果，可能的原因是提出了改善PA6 / MCA @ PZS复合材料的阻燃性能。

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