著者

濱田 文男

出版者

JAPAN TECHNICAL ASSOCIATION OF THE PULP AND PAPER INDUSTRY

雑誌

紙パ技協誌 (ISSN:0022815X)

巻号頁・発行日

vol.31, no.8, pp.583-589, 1977-08-01 (Released:2009-11-11)

著者

工藤 素 村田 健司 鎌田 悟 濱田 文男

出版者

一般社団法人 プラスチック成形加工学会

雑誌

成形加工 (ISSN:09154027)

巻号頁・発行日

vol.21, no.3, pp.153-160, 2009 (Released:2010-01-06)

参考文献数

14

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In this paper, a new aerial shell made of biodegradable plastics was developed and explosion tests were carried out using 2.5-10 gou-size firework aerial shells at a ground test site in order to observe the fragmentation. The dispersed fragments were then collected and their size and distribution measured. In order to monitor the fragmentation visually, a high-speed camera was used to film the ignition of the bursting charge and the scattering of the shell fragments. The shell fragments became much smaller, because mechanical properties of biodegradable plastics that were added improved polyvinyl alcohol (PVA) and chaff powder (CP). Fibrillation was seen in PBS/PVA/CP, and it seemed effective for mechanical properties. As a result, safer aerial shells which disperse into smaller fragments on explosion were successfully developed.