Polymer Composites in Fire

Davies, John S.; Wang, Yong; Wong, P M; Omrane, Alaa; Bourne, N. K.; Thoma, D. J.; Cooley, J. C.; Hauer, Andreas

doi:10.1533/9781845690649.1.3

Cited by 8 publications

(5 citation statements)

References 8 publications

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“…However, the anisotropic nature of composite materials makes these models very complex. They must account for temperature‐dependent thermal properties, internal chemical reactions, material delaminations, and formation of pyrolysis products . Previous work has investigated the effects of in‐plane fiber orientation on reaction‐to‐fire properties, such as unidirectional and quasi‐isotropic, its stacking pattern, and chopped and woven fiber reinforcement .…”

Section: Introductionmentioning

confidence: 99%

“…They must account for temperature-dependent thermal properties, internal chemical reactions, material delaminations, and formation of pyrolysis products. [29][30][31] Previous work has investigated the effects of in-plane fiber orientation on reaction-to-fire properties, such as unidirectional and quasi-isotropic, its stacking pattern, and chopped and woven fiber reinforcement. [32][33][34] However, minimal research into the effects and applications of outof-plane fiber angles has been conducted to date and is, therefore, the focus of this work.The following study investigates the specific effects of out-ofplane fiber angles on the reaction-to-fire characteristics of CFRP…”

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confidence: 99%

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Influence of out‐of‐plane fiber orientation on reaction‐to‐fire properties of carbon fiber reinforced polymer matrix composites

Eibl¹,

Swanson²

2017

Fire and Materials

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Summary This work investigates the influence of the out‐of‐plane orientation of carbon fibers on the reaction‐to‐fire characteristics of polymer matrix composites. A deep insight into combustion processes is gained, which is necessary to fully understand and assess advantages of composites with out‐of‐plane fiber angles. Epoxy‐based Hexply 8552/IM7 specimens with primarily low fiber angles between 0° and 15° are characterized by cone calorimetry. Heat release during fire is greatly affected by the out‐of‐plane fiber angle because of the thermal boundaries created by the fibers. The advancement of the pyrolysis front during fire was determined from peak heat release rates and validated by temperature measurements along the back surface of the panels, representing a novel method of determining position‐dependent pyrolysis migration velocity. These measurements show a transverse shift in pyrolysis front velocity for increasing out‐of‐plane fiber angles. Pyrolysis pathways between the fiber boundaries facilitate faster combustion through the composite thickness, especially for increasing angles from 0° to 15°. It was determined that under the chosen conditions, the pyrolysis front advances approximately 4 times faster when propagating parallel to the fibers than perpendicular.

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Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

Influence of out‐of‐plane fiber orientation on reaction‐to‐fire properties of carbon fiber reinforced polymer matrix composites

Eibl¹,

Swanson²

2017

Fire and Materials

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“…The aim of another research [ 11 ] was to evaluate the mechanical properties of cork-based agglomerates, which may be used as sandwich panel components for lightweight structures. In papers [ 15 , 16 , 17 , 18 , 19 , 20 ], studies on the fire resistance of composite panels were reported. It is a serious issue related to practical application of lightweight ecological fillers, i.e., fire-resistant materials based on e.g., cork-based composites [ 16 ].…”

Section: Introductionmentioning

confidence: 99%

Impact of Different Binders on the Roughness, Adhesion Strength, and Other Properties of Mortars with Expanded Cork

et al. 2018

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The aim of the research that is presented in this paper was to evaluate the physical and mechanical properties of heat-insulating mortars with expanded cork aggregates and different binders. In this work, the measurements of surface roughness and adhesion strength, supported by determination of basic mechanical and physical parameters, such as density, bulk density, open porosity, total porosity, absorbability, thermal conductivity coefficient, compressive strength, flexural strength, and frost resistance of mortars containing expanded oak cork, were performed. The scanning electron microscope (SEM) investigations demonstrated the microstructure, contact zone, and distribution of pores in the heat-insulating mortars containing expanded cork. The results indicated that the addition of expanded cork and different binders in heat-insulating mortars triggers changes in their roughness and adhesion strength. The SEM research confirmed the very good adhesion of the paste to the cork aggregate.

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“…Em termos qualitativos, a reação ao fogo de materiais compósitosé semelhanteà da madeira, ou seja, quando o materialé relativamente fino a queima ocorre rapidamente. Por outro lado, quando o material compósitoé relativamente espesso, forma-se uma camada de proteção que pode prolongar o tempo de integridade estrutural sem perder parte significativa de sua resistência mecânica [14].…”

Section: Introductionunclassified

Response to fire, thermal insulation and acoustic performance of rigid polyurethane agglomerates with addition of natural fiber

Rizzo¹,

Nunes²,

Zeni³

et al. 2015

Sci. cum Ind.

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ResumoO presente trabalho tem como objetivo a reutilização de resíduos de poliuretano rígido na elaboração de compósitos com a adição de fibras de bananeira e de celulose visando a qualificação do desempenho acústico, do isolamento térmico e da reação ao fogo do material com adição de 7% de polisulfona. Aglomerados com 100% de poliuretano e com adição de 20% de fibras de bananeira e ou 20% de celulose foram caracterizados na perda de transmissão sonora e condutividade térmica e a reação ao fogo levando em consideração as variações na granulometria dos sólidos de poliuretano e o tipo de prensagem. Os compósitos com fibras naturais apresentaram menor condutividade térmica, maior isolamento acústico nas médias frequências e a adição de polisulfona retardou o tempo total de queima do material. Palavras-chavePoliuretano, fibras naturais, isolamento de edifícios, reação ao fogo.Fire response, thermal insulation and acoustic performance of rigid polyurethane agglomerates with addition of natural fiber AbstractThis paper aims to reuse rigid polyurethane waste in the preparation of composites with the addition of banana fibers and cellulose in order to qualify the acoustic performance, thermal insulation and reaction to fire the material with the addition of 7% of polysulfone. Agglomerated with 100% of polyurethane and either with 20% of banana fiber or 20% of cellulose were characterized in the sound transmission loss, thermal conductivity and reaction to fire, take into account variations in the granulometry of the solid polyurethane and type of pressing. Natural fiber composites had lower thermal conductivity, higher acoustic insulation in medium frequencies and the addition of polysulfone delayed the total time of firing the material.

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Polymer Composites in Fire

Cited by 8 publications

References 8 publications

Influence of out‐of‐plane fiber orientation on reaction‐to‐fire properties of carbon fiber reinforced polymer matrix composites

Influence of out‐of‐plane fiber orientation on reaction‐to‐fire properties of carbon fiber reinforced polymer matrix composites

Impact of Different Binders on the Roughness, Adhesion Strength, and Other Properties of Mortars with Expanded Cork

Response to fire, thermal insulation and acoustic performance of rigid polyurethane agglomerates with addition of natural fiber

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