成形加工
Online ISSN : 1883-7417
Print ISSN : 0915-4027
ISSN-L : 0915-4027
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22 巻, 5 号
選択された号の論文の17件中1～17を表示しています
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目次
巻頭言
解説：東北・北海道支部特集
AWPP 2009 in マレーシア報告
技術報告
日本の大学・試験・研究機関の研究 : 174
会議・見本市だより
知りたい・見たい・訪ねたい　成形加工の元気な仲間
論文
  • シルク織物複合材料の成形品特性におよぼすセリシンの効果
    木村 照夫, 井野 晴洋, 花田 功治, 香取 重尊
    2010 年 22 巻 5 号 p. 251-258
    発行日: 2010年
    公開日: 2010/09/23
    DOIhttps://doi.org/10.4325/seikeikakou.22.251
    ジャーナル フリー
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    Recent, attention has been given to shift from glass fibers and carbon fibers to natural fibers for FRP composites for the goal of protecting the environment. This paper concerned with the application of silk fabric for composite materials. Polypropylene (PP) was used for the matrix material and the silk fabric composites were molded using a compression molding method. Especially, the effect of sericin on mechanical behaviors of composite materials was discussed. Good adhesion between silk and PP was obtained by removing the sericin existing around the fibroin. The tensile modulus of composite decreased with decreasing the sericin because of the flexibility of silk fibers without sericin. In particular, the higher Izod impact value was obtained for the composites containing the silk fibers without sericin.
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  • PPの燃焼特性におよぼす難燃剤およびタルクの分布状態の影響
    清野 充, 野村 学, 松原 重義, 小滝 雅也, 濵田 泰以
    2010 年 22 巻 5 号 p. 259-265
    発行日: 2010年
    公開日: 2010/09/23
    DOIhttps://doi.org/10.4325/seikeikakou.22.259
    ジャーナル フリー
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    Flammability of polymer is a phenomenon of oxidation reaction at near surface of products. Distribution of filler and flame-retardant at surface of products is thought to influence the flammability. So model samples that have various distributions of flame-retardant and filler, were made by using high-speed sandwich injection moldings. In this study, two types of flame-retardant, bromine type and phosphorous type, were used. The model sample which had high flame-retardant content in surface layer and high filler content in core layer, had good flammability and mechanical properties. Especially, phosphorous flame-retardant showed superior effect in that small amount of flame-retardant achieved same flammability as flame-retardant PP without filler. Control of distribution of flame-retardant and filler by using high-speed sandwich injection molding is cost-effective method with low flame-retardant addition.
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