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Weather lights in the Ore Mountains

Lew Tolstoy would have had his true joy at this sight, and the picturesque winter landscape would surely have inspired him in the work of his epochal works. But neither Anna Karenina nor Father Frost found the way up to the Fichtelberg. Because today we do not show you a recording from Russia, but we take you on a trip to the Ore Mountains in Saxony.

The Ore Mountains are a mountain range in Saxony and Bohemia. The Fichtelberg near Oberwiesenthal is the highest mountain in Saxony, at around 1,214 metres. The spa town of Oberwiesenthal in the Pöhlbach valley is the highest town in Germany.

合成具有良好催化碳化能力的功能化磷酸锆（F-ZrP），并将其与N-烷氧基受阻胺（NOR）结合制成阻燃PP。该组合物显示出高阻燃效率。

当NOR，F -ZrP和聚磷酸铵的含量分别为0.2％，4.95％和14.85％时，阻燃剂PP达到极限氧指数为36.0％并且达到UL-94 V-0等级。同时，最高放热率，平均放热率，总放热，峰值烟产生率和总烟量分别下降了95.6％，90.6％，73.3％，93.5％和80.6％。

功能化的ZrP纳米片与N-烷氧基受阻胺的协同作用显着提高聚丙烯的防火性

N-烷氧基受阻胺（NOR）与功能化的ZrP纳米片的协同作用实现了无卤阻燃PP的高效率。当NOR，F-ZrP和APP的含量分别为0.2 wt％，4.95wt％和14.85wt％时，PP的LOI从18.0％增加到36.0％，UL-94等级从NR增加到V -0个评分。

此外，PHRR，AV-HRR，THR，PSPR和TSP分别下降了95.6％，90.6％，73.3％，93.5％和80.6％。该机理表明，F-ZrP通过界面碳化在膨胀型炭层中形成了封闭的微米级炭笼。在炭笼中，NOR产生的硝酰基自由基有效地淬灭了PP热解产生的活性自由基，并诱导了它们的环化反应。捕获的环状化合物被F-ZrP纳米片捕获并催化成石墨化的结晶炭，形成稳定而致密的炭层，以保护聚合物免于燃烧。自由基猝灭和催化碳化机理的协同作用为实现高效无卤阻燃聚合物提供了一种新途径。