Fire behavior of flame retarded sandwich structures containing PET foam cores and epoxy face sheets,Polymer Composites

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Fire behavior of flame retarded sandwich structures containing PET foam cores and epoxy face sheets
Polymer Composites ( IF 4.8 ) Pub Date : 2020-08-21 , DOI: 10.1002/pc.25786
Christian Bethke ₁ , Lais Weber _{2,

3} , Daniela Goedderz _{2,

3} , Tobias Standau ₁ , Manfred Döring ₂ , Volker Altstädt ₁

Affiliation

Within this work, the investigation on interactions of a phosphorus‐containing flame retardant (FR) DEPAl in epoxy face sheets and five different FRs in the PET‐foam core of a sandwich laminate on the fire behavior is focused. Fourteen different combinations of resin face sheets and PET foam cores are produced by vacuum assisted resin infusion (VARI). The combustion behavior of the sandwich laminates is tested by cone calorimetry. The time to ignition is lowered when a FR resin is used while the subsequent burning behavior is mainly influenced by the PET foam core. In order to evaluate the interactions of the flame retardants in the core and face sheet, a total improvement value (TIV) was set up which compares the performance related to the specific FR combinations. The highest TIV value (76%) indicating positive interactions with DEPAl was observed with a 2‐PSMP‐PET core, the lowest value (−2%) with a DEPZn‐PET core.

中文翻译：

包含PET泡沫芯和环氧树脂面板的阻燃夹芯结构的防火性能

在这项工作中，重点研究了环氧面板中含磷的阻燃剂（FR）DEPA1与三明治层压板的PET泡沫芯中的五种不同的FRs之间的相互作用。通过真空辅助树脂灌注（VARI）可生产出树脂面板和PET泡沫芯的14种不同组合。夹心层压板的燃烧行为通过锥形量热法测试。当使用FR树脂时，点火时间减少，而随后的燃烧行为主要受PET泡沫芯的影响。为了评估阻燃剂在纤芯和面板中的相互作用，设置了总改进值（TIV），用于比较与特定FR组合相关的性能。

更新日期：2020-08-21

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