成果報告書詳細
管理番号20110000001270
タイトル*平成22年度中間年報 サステナブルハイパーコンポジット技術の開発
公開日2011/9/9
報告書年度2010 - 2010
委託先名国立大学法人東京大学 三菱レイヨン株式会社 東洋紡績株式会社 東レ株式会社 株式会社タカギセイコー
プロジェクト番号
部署名電子・材料・ナノテクノロジー部
和文要約和文要約等以下本編抜粋:1. 研究開発の内容及び成果等
研究開発項目(1)「易加工性CFRTP中間基材の開発」
(1)-1「等方性CFRTP中間基材」
(1)-1-1「マトリックス樹脂の開発」
中間基材化工程の安定通過性と、中間目標をクリアする力学特性とを両立したポリプロピレンシートに関し、工業スケールでの供給に目処の立つ処方を確立した。
ラボスケールでは、CFRTPとして性能向上できるポリマーアロイの研究を進め、等方性中間基材としての強度を約10%向上させるPP系樹脂処方を開発した。
英文要約This project aims to reduce the energy consumption of automobiles and other vehicles and help to establish a recycling-oriented society by reducing the weight of such vehicles through the development of composite materials that are highly formable, processable and recyclable utilizing carbon fiber and thermoplastic resins. In FY2010, following four topics were performed.
[1] Development of high-processability CFRTP intermediate substrates; In the 3rd fiscal year of the this project, the development of several principle technologies applied to interfacial adhesion between carbon fiber and thermoplastic resin, uniform dispersibility of discontinuous carbon fiber and impregnation rate of thermoplastic resin resulted in improvement of performance of CFRTP substrates, and by applying such approaches to the new material, this project achieved intermediate targets related to bending strength, uniformity, breaking elongation and so on.
[2] Development of molding technology; Investigation about molding conditions, construction of automated transportation system of preerform mold and process simulation technique using numeric analysis advanced high-speed molding for both of the isotropic CFRTP intermediate substrates using discontinuous carbon fiber and the unidirectional CFRTP intermediate substrates using continuous carbon fiber. And, the intermediate targets for the molding cycle time were achieved for stamping molding and internal pressure molding. Furthermore, the structural basic forming members including some of principle complicated shapes such as ribs were developed and it was shown that the molding technologies and the developed CFRTP materials are greatly applicable for automotive structural body.
[3] Development of joining technology; Various welding equipments were introduced and each joining method for CFRTP was investigated about joining strength, operability and formability. As a result, it was found that the joining surface has some properties required for joining parts of structural members
[4] Development of recycling technology; This project aims to conduct R&D for the improvement of 3R technologies in the life cycle by making use of the properties of the developed CFRTP. The recycling efficiency was investigated by means of comparing the mechanical properties of specimens re-formed by using crushed pieces or offcuts of CFRTP obtained from timber offcuts at molding and virgin specimens. And then, some advanced methods for improving the performance of recycled materials were demonstrated. As for repairing techniques, some basic methods of strengthening broken specimen were devised at the beginning.
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