著者

中島 江梨香 上野 智永 市野 良一 武田 邦彦

出版者

公益社団法人 高分子学会

雑誌

高分子論文集 (ISSN:03862186)

巻号頁・発行日

vol.71, no.4, pp.159-168, 2014-04-25 (Released:2014-04-25)

参考文献数

34

被引用文献数

2

---

高分子材料の欠点である燃焼性を克服するために,高分子材料の熱分解と燃焼性について研究を行ってきた.高分子化合物の熱分解は,主鎖のランダムな分解,あるいは高分子鎖の末端で三量体などの化合物を生成する場合,解重合が起きる場合がある.本報では,ランダム開裂とともに末端の特定部位からの開裂が同時に起こる,ポリプロピレンとポリスチレンについて熱分解と燃焼性の関係性を研究した.熱分解生成物ばかりではなく,高分子材料の分子量が大きな影響を与えることを見いだした.分子量の違いによって燃焼状態が異なり,分子量の高い試料と低い試料では熱分解後の分子量分布の変化が異なること,特定の燃焼条件下ではある特定の分子量において燃焼しないということが明らかになった.ポリオレフィン類およびポリスチレンのように社会で大量に使用されているプラスチックにおいて,構造的に燃焼しないものが発見されたことは今後安心安全な社会の進展に大きく寄与する.

著者

武田 邦彦 橋本 淳 棚橋 満

出版者

一般社団法人 資源・素材学会

雑誌

資源と素材 (ISSN:09161740)

巻号頁・発行日

vol.120, no.3, pp.139-145, 2004 (Released:2006-04-15)

参考文献数

52

---

Resource saving is thought to be one of the concepts and the acts necessary for environmental preservation. However, resource saving and its effect were examined and discussed from historical, regional, value and ethical viewpoints. From a historical viewpoint, the conversion from a society that used mainly sustainable resources to a society that uses non-sustainable resources was considered. From a regional viewpoint, Japan as a special region where there are little non-sustainable resources and a lot of consumption was taken up, and the influence of monopoly of worldwide resources by Europe and the United States was considered. In addition, in terms of value, the size of the overall gain of the acquisition of resources between generations was considered, and from an ethical viewpoint, the North-South problem was mainly analyzed. Also, regarding the conversion between resources, as the first approximation, the possibility of converting a general material into energy such as oil was shown, and the examination was advanced based on this. And then, it was pointed out that resource had not been saved in terms of the construction of a sustainable society even in the Edo period when resource had generally been maintained.

著者

武田 邦彦

出版者

コンパス社

雑誌

バウンダリ- (ISSN:09162402)

巻号頁・発行日

vol.19, no.3, pp.16-23, 2003-03

著者

吉田 真悟 橋本 淳 棚橋 満 行本 正雄 武田 邦彦

出版者

社団法人日本材料学会

雑誌

学術講演会講演論文集

巻号頁・発行日

vol.54, pp.436-437, 2005-05-20

著者

坂本 健太郎 遠藤 小太郎 行本 正雄 武田 邦彦

出版者

一般社団法人日本機械学会

雑誌

日本機械学會論文集. B編 = Transactions of the Japan Society of Mechanical Engineers. B (ISSN:03875016)

巻号頁・発行日

vol.72, no.722, pp.2338-2345, 2006-10-25

参考文献数

24

---

The amount of woody biomass resources in Aichi Prefecture and Toyone Village was estimated on the basis of theoretical and actual production efficiencies. Five factors should be considered at the steady production of reduced carbon from carbon dioxide by sunlight in woods. The ratio of leaf to forest area, the reflection of sunlight on leaf surface, the conversion efficiency from the light energy, efficiency of optical system, and of dark reaction are 0.70, 0.82, 0.24, 0.31, and 0.92 respectively. On the other hand, four factors are in the timber production stage. The energy consumption loss for the daily life of woods, the waste at the forest, the thinner woods to main cutting production, and the thinning are 0.50, 0.47, 0.435, 0.44, respectively. The total efficiency was calculated and the result was 0.0023. Furthermore, near fiscal year 2000, primary energy consumption in Aichi Prefecture is 1.48×10^9 GJ/year, so it is 2200 times than the present production amount and 300 times the best theoretical production amount.