|タイトル||*平成29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|
|報告書年度||2017 - 2017|
|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 地方独立行政法人京都市産業技術研究所|
|英文要約||Title : Technology Development of Manufacturing Processes for Non-edible Plant-derived Chemicals. / Development of an Integrated Process for Manufacturing Chemical Derived from Woody Plant Resources /The development of production process for high performance lignocellulosic nanofibers and their applications.(FY2013-FY2019) FY2017Annual Report
The fundamental technology to improve the heat resistance of lignocellulose nanofibers and dispersibility of lignocellulose nanofibers in the matrix resins has been developed in order to use cellulose nanofibers to reinforce automotive and housing plastic parts.
The project consists of five parts as follows: 1) development of the technology for the isolation of ligno pulps/cellulose nanofibers from plant resources such as wood; 2) development of the technology for the chemical modification of lignocellulose nanofibers suitable for plastic reinforcement; 3) development of the continual production process of lignocellulose nanofibers reinforced composites; 4) development of the technology for the evaluation of cellulose nanofibers (CNF) size distribution and surface chemical reactivity; 5) development of the technology for the application of lingo cellulose nanofibers reinforced plastics.
1. The technology for the isolation of ligno pulps/CNF from matured part and juvenile part of Japanese cedar was studied. The reinforcing efficiencies of the pulps for PA6 and PP were studied after chemical modification.
2. The chemical modification of lingo CNF suitable for thermoplastic reinforcement was studied. The reinforcement using acetylated 10 wt% cellulose nanofibers was found to increase Young’s modulus and bending strength of PA6 and PP by 2-2.5 times.
3. An integrated production process that simultaneously nanofibrillates chemically modified pulp and uniformly disperses ligno CNF in resins was developed and the test plant (producing capacity: 1 ton/year based on 10wt% CNF content) constructed at RISH, Kyoto University operated to supply to automotive parts companies, housing company and so on who joined in this project as advisers and supplied their evaluations.
4. The development of the production process of ligno CNF reinforced composites with high lignin and high hemicellulose content was studied. A combination of structural control of lignin and chemical modification of hemicellulose resulted in high Young’s modulus and high strength material by compression molding.
5. The micro-foaming of chemically treated CNF reinforced PA6 was tried using super critical N2 method.