Characterisation of Materials Burning by a Cone Calorimeter： 1 Pure Polymers

The burning of several thermally thin polymers such as polyethylene, polypropylene, polystyrene, polymethyI methacrylate, poly 4-methyl 1-pentene and starch and thermally thick polymers such as polymethyl methacrylate and plywood has been conducted in a cone calorimeter. The three main heat release...

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Bibliographic Details
Published in:材料科学与工程：中英文A版 2012 (2), p.174-182
Main Author: JozefRychly Lyda Rychla Katarina Csomorova
Format: Article
Language:Chinese
Subjects:
材料特性
点火时间
热释放率
燃烧热
聚合物
聚甲基丙烯酸甲酯
聚苯乙烯
锥形量热仪
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Summary:The burning of several thermally thin polymers such as polyethylene, polypropylene, polystyrene, polymethyI methacrylate, poly 4-methyl 1-pentene and starch and thermally thick polymers such as polymethyl methacrylate and plywood has been conducted in a cone calorimeter. The three main heat release rate patterns after the ignition were observed, namely 1） the steady increase almost to the flame out 2） stationary burning and 3） immediate decay from the maximum that are typical for 1） polyolefins and polystyrene 2） polymethyl methacylate 3） polysaccharide materials. In the latter case glowing of the formed char due to the better approach of oxygen to the surface was superposed with the decay before the flame extinction. Nonisothermal thermogravimetry runs in air were shown to be related to time to ignition in cone calorimeter experiments.
ISSN:2161-6213