加速和自然风化对阻燃工业木材复合材料的影响

IF 1.9 4区工程技术 Q2 ENGINEERING, MULTIDISCIPLINARY

Journal of Fire Sciences Pub Date : 2022-08-27 DOI:10.1177/07349041221102059

G. Fontaine, V. Marchetti, S. Bourbigot

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引用次数: 1

摘要

本研究显示了老化对户外使用的阻燃聚氯乙烯-木材复合覆层的防火性能的影响。对两组复合木覆层元件进行了检查：一组在暴露于室外的条件下自然老化1年，另一组经过人工加速老化。利用光学显微镜、电子探针显微分析和27Al的固态核磁共振研究了材料老化后性能的变化、化合物的分布和铝环境。本研究揭示了不同老化程序对复合材料物理化学改性的影响。此外，在老化后，通过锥形量热法评估了两组复合材料的燃烧行为作为火灾暴露时间的函数。然后，用单一燃烧项目对天然老化复合材料进行了更大规模的评价。结果令人惊讶地表明，无论老化如何，这些木材复合材料的防火性能都没有受到影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Effects of accelerated and natural weathering on fire-retarded industrial wood composite

This study shows the impact of aging on the fire behavior of a fire-retarded polyvinyl chloride wood composite cladding intended for outdoor use. Two sets of composite wood cladding elements were examined: one aged naturally under exposed outdoors conditions for 1 year and the second, which underwent artificial accelerated aging. Optical microscopy, electron probe micro-analysis, and solid-state nuclear magnetic resonance of 27Al were used to investigate changes in the material properties after aging, distribution of chemical compounds, and aluminum environment. This study reveals the impact of different aging procedures on the physicochemical modifications of the composite material. In addition, after aging, the fire behavior of the two sets of composites as a function of fire exposure time was evaluated by cone calorimetry. Then, the natural aged composite was evaluated on a larger scale with the single burning item. The results surprisingly demonstrate that whatever the aging, the fire behavior of these wood composite was not affected.

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来源期刊

Journal of Fire Sciences 工程技术-材料科学：综合

CiteScore

4.00

自引率

0.00%

发文量

审稿时长

2.5 months

期刊介绍： The Journal of Fire Sciences is a leading journal for the reporting of significant fundamental and applied research that brings understanding of fire chemistry and fire physics to fire safety. Its content is aimed toward the prevention and mitigation of the adverse effects of fires involving combustible materials, as well as development of new tools to better address fire safety needs. The Journal of Fire Sciences covers experimental or theoretical studies of fire initiation and growth, flame retardant chemistry, fire physics relative to material behavior, fire containment, fire threat to people and the environment and fire safety engineering. This journal is a member of the Committee on Publication Ethics (COPE).