成果報告書詳細
管理番号20150000000348
タイトル*平成25年度中間年報 非可食性植物由来化学品製造プロセス技術開発 研究開発項目(2)木質系バイオマスから化学品までの一貫製造プロセスの開発 高機能リグノセルロースナノファイバーの一貫製造プロセスと部材化技術開発
公開日2016/4/1
報告書年度2013 - 2013
委託先名国立大学法人京都大学 王子ホールディングス株式会社 日本製紙株式会社 星光PMC株式会社 京都市
プロジェクト番号P13006
部署名電子・材料・ナノテクノロジー部
和文要約
英文要約Development of the technology for the continual production process of
ligno cellulose nanofibers and their applications for the structural members

Summary

The fundamental technology to improve the heat resistance of ligno cellulose nanofibers and dispersibility of ligno cellulose nanofibers in the matrix resins such as Polyamide 6 (PA6), polypropylene resin (PP) has been developed in order to use cellulose nanofibers to reinforce automotive and housing plastic parts.
The project consists of three parts as follows: 1) development of the technology for the isolation of ligno cellulose nanofibers from plant resources such as wood and bamboo; 2) development of the technology for the chemical modification of ligno cellulose nanofibers suitable for PA6 and PP reinforcement; 3) development of the production process of ligno cellulose nanofibers reinforced composites by chemical modification. In parallel, ligno cellulose nanofibers reinforced plastic compounds were prepared to supply to automotive companies as well as housing company, who joined in this project as advisers and supplied their evaluations. The results were as follows.

1. The development of the technology for the isolation of ligno cellulose nanofibers from wood was studied and the improvement of heat resistance was attained.
2. The development of the technology for the chemical modification of ligno cellulose nanofibers suitable for PA6 and PP reinforcement was studied. The reinforcement using chemically modified 10wt% cellulose nanofibers was found to increase Young’s modulus and tensile strength of PA6 by 2.6 times and 2.2 times, respectively. Interestingly, the CTE of PA6 reduced to 25.4 ppm/K by the addition of 10wt% CNF.
3. The development of the production process of ligno cellulose nanofibers reinforced composites was studied. A combination of production process using twin screw extruder and solid-phase shear continuous kneader was studied and found to give less damage to the compound compared to conventional twin screw extruder process.
4. The micro-foaming of chemically treated CNF reinforced PA6 was tried using super critical CO2 method.
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