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首页> 外文会议>Proceedings of the fire and materials 2015 conference >PYROLYSIS SIMULATION OF FIBER REINFORCED POLYMER (FRP) COMPOSITES: CHALLENGES OF ZERO-DIMENSIONAL TESTING OF RESIN AND ADDITIVE MIXTURES TO MEASURE KINETIC PARAMETERS
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PYROLYSIS SIMULATION OF FIBER REINFORCED POLYMER (FRP) COMPOSITES: CHALLENGES OF ZERO-DIMENSIONAL TESTING OF RESIN AND ADDITIVE MIXTURES TO MEASURE KINETIC PARAMETERS

机译：纤维增强聚合物（FRP）复合材料的热解模拟：树脂和添加剂混合物零维测试对测量运动学参数的挑战

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Recently the fire protection engineering community has begun using comprehensive pyrolysisrnmodels to analyze the thermal performance of materials. Typically these models assume that eachrncomputational cell decomposes consistent with zero-dimensional (0D) testing: ThermogravimetricrnAnalysis (TGA) and Differential Scanning Calorimetry (DSC). The needed kinetic parameters arerndetermined based on “fitting” of the test results for specific material systems. This approach is limitedrnto a given system and may not be valid for systems that have the same components but in differentrnratios. In an effort to better understand how to determine kinetic parameters of material systems basedrnon characteristics of individual components, this study evaluated an unsaturated polyester (UPE) resinrnand “char forming” alumina trihydrate (ATH) additive mixtures typically used in FRP composites inrn0D testing. TGA and DSC testing of the mixtures shows non 0D (transport) effects based on samplernmorphology and UPE/ATH ratios. To better understand the testing results of the mixtures two simplernideal mixing models are used, one for mass loss rate vs. temperature and one for heat ofrndecomposition vs. mixture ratios. Both mixing models utilize kinetic and heat of decompositionrnparameters determined for the UPE and ATH separately. The nature of the non 0D (transport) and 0Drneffects are discussed as well as how these results affect determination of kinetic parameters needed asrninput for comprehensive pyrolysis models.
机译：最近，消防工程界已经开始使用综合热解模型来分析材料的热性能。通常，这些模型假定每个计算单元的分解都与零维（0D）测试一致：热重分析（TGA）和差示扫描量热法（DSC）。根据特定材料系统的测试结果的“拟合”确定所需的动力学参数。这种方法仅限于给定的系统，并且对于具有相同组件但比例不同的系统可能无效。为了更好地理解如何根据单个组件的特性确定材料系统的动力学参数，本研究评估了FRP复合材料测试中通常使用的不饱和聚酯（UPE）树脂和“成炭”三水合氧化铝（ATH）添加剂混合物。混合物的TGA和DSC测试显示基于样品形态和UPE / ATH比的非0D（运输）效应。为了更好地理解混合物的测试结果，使用了两种简单的理想混合模型，一种用于质量损失率与温度的关系，一种用于热分解与混合物比率的关系。两种混合模型均利用分别为UPE和ATH确定的分解动力学参数和分解热。讨论了非0D（运输）和0Drneffects的性质，以及这些结果如何影响综合热解模型所需的动力学参数的确定。

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    Nicholas Dembsey; Brianna Gillespie; Mary Long; Natalie McMillan; Caitlin Walde;

  • 作者单位

    Worcester Polytechnic Institute, USAWilliam KreyslerKreysler Associates, USA;

    Worcester Polytechnic Institute, USAWilliam KreyslerKreysler Associates, USA;

    Worcester Polytechnic Institute, USAWilliam KreyslerKreysler Associates, USA;

    Worcester Polytechnic Institute, USAWilliam KreyslerKreysler Associates, USA;

    Worcester Polytechnic Institute, USAWilliam KreyslerKreysler Associates, USA;

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  • 正文语种 eng
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