Nickel ammonium phosphate and reduced graphene oxide two‐dimensional hybrid material for improving the fire safety and mechanical properties of poly(vinyl chloride),Polymer International

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Nickel ammonium phosphate and reduced graphene oxide two‐dimensional hybrid material for improving the fire safety and mechanical properties of poly(vinyl chloride)
Polymer International ( IF 2.9 ) Pub Date : 2020-06-14 , DOI: 10.1002/pi.6066
Jiahe Li ₁ , Weihua Meng ₁ , Weihong Wu ₂ , Zhaoxi Zhou ₁ , Weiwei Zhang ₁ , Pingan Song ₃ , Jianzhong Xu ₁ , Hongqiang Qu ₁

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In this study, a hybrid material with band‐shaped nickel ammonium phosphate monohydrate (NiNH₄PO₄.H₂O) (ANP) and reduced graphene oxide (RGO) was devised by the one‐pot method. This material is a novel, efficient and non‐halogen flame retardant and smoke suppressant. Based on the characterization results, a crystal growth and thermal decomposition process of ANP is proposed, which proves that it has flame retardancy and smoke suppression in the gas phase and condensed phase. When the amount of ANP/RGO was 15 phr (per hundred parts of resin), the total smoke production, peak smoke production rate, total heat release and peak heat release rate of poly(vinyl chloride) (PVC) composite were 49.76%, 59.46%, 47.48% and 69.94% lower respectively than those of pure PVC. Meanwhile, the tensile strength of the PVC composite increased by 6.74%. The results show that ANP/RGO improves the fire safety performance, smoke suppression and mechanical properties of PVC composites. The significant improvement in fire safety performance is mainly attributed to the dilution of combustible gases with ammonia and water generated by the decomposition of ANP/RGO during combustion, and the phosphide in the condensed phase made the residual char crosslinked and denser to protect the substrate more effectively. © 2020 Society of Chemical Industry

中文翻译：

磷酸镍铵和还原性氧化石墨烯二维杂化材料，用于改善聚氯乙烯的防火安全性和机械性能

在这项研究中，带状磷酸镍铵一水合物（NiNH ₄ PO ₄ .H ₂O）（ANP）和还原氧化石墨烯（RGO）是通过一锅法设计的。这种材料是一种新颖，高效且无卤素的阻燃剂和抑烟剂。根据表征结果，提出了ANP的晶体生长和热分解过程，证明了ANP在气相和凝聚相中具有阻燃性和抑烟性。当ANP / RGO的量为15 phr（按树脂的每100份计）时，聚氯乙烯（PVC）复合材料的总烟气产生量，峰值烟气产生率，总热量释放和峰值热量释放率是49.76％，比纯PVC分别降低59.46％，47.48％和69.94％。同时，PVC复合材料的拉伸强度提高了6.74％。结果表明，ANP / RGO改善了消防安全性能，PVC复合材料的抑烟性和机械性能。消防安全性能的显着提高主要归因于ANP / RGO燃烧过程中分解产生的氨和水稀释了可燃气体，并且冷凝相中的磷使残留的碳交联且致密，从而可以更好地保护基材有效。©2020化学工业协会

更新日期：2020-06-14

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