{"created":"2023-06-19T11:42:11.200026+00:00","id":11281,"links":{},"metadata":{"_buckets":{"deposit":"57cbea6c-6665-45e0-99a4-fab43a42b390"},"_deposit":{"created_by":16,"id":"11281","owners":[16],"pid":{"revision_id":0,"type":"depid","value":"11281"},"status":"published"},"_oai":{"id":"oai:mie-u.repo.nii.ac.jp:00011281","sets":["420:686:705:715"]},"author_link":[],"item_7_alternative_title_19":{"attribute_name":"その他の言語のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"稲ワラを用いた生分解可能なバイオマスボードの開発及びその強度に関する研究","subitem_alternative_title_language":"ja"}]},"item_7_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2016-09-21","bibliographicIssueDateType":"Issued"}}]},"item_7_date_granted_59":{"attribute_name":"学位授与年月日","attribute_value_mlt":[{"subitem_dategranted":"2016-09-21"}]},"item_7_degree_grantor_57":{"attribute_name":"学位授与機関","attribute_value_mlt":[{"subitem_degreegrantor":[{"subitem_degreegrantor_name":"三重大学"}],"subitem_degreegrantor_identifier":[{"subitem_degreegrantor_identifier_name":"14101","subitem_degreegrantor_identifier_scheme":"kakenhi"}]}]},"item_7_degree_name_56":{"attribute_name":"学位名","attribute_value_mlt":[{"subitem_degreename":"博士(学術)"}]},"item_7_description_14":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_7_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"With the rapid development of global economy, the supply of timber has been unable to meet the demand of economic development. At the same time, the rapid development of the economy led to oil and other fossil energy crisis, and plastics products are popular used in common life, which brought a very bad result called \"\"the white pollution\"\". It is serious harmful for human’s health and natural environment. Therefore, composite materials with high performance, multi-function, and high added value, more and more eagerly need for human life and social development. Biomass material means that it is produced by renewable raw materials, which is the product of plant photosynthesis with carbon dioxide, and it can be degraded into water and carbon dioxide by microbial or light, or through the compost for fertilizer as natural polymers. Crop straw is considered as one kind of excellent biomass materials sources. At present, crop straws is faced the phenomenon with high yield, low utilization rate. But if it can be made into biomass board and could be used for agriculture, packaging industry, construction industry to replace wood products and plastic products. It is not only can ease the timber supply pressure, but also relieve the oil and other fossil energy supply pressure, and reduce plastic pollution to the environment, of course, the crop straws resources are more efficiently utilized. The research is based on the conception of sustainable development and circular economic, refers to describe the process of make an environment-friendly, complete degradation of biomass material from the agricultural waste rice straw as raw material. There are two methods to produce the biomass board: physical and chemical methods. This study adopted the physical method. The making process of biomass board was cutting, soaking, refining, forming and drying. The making method as follow; At first, the rice straw was cut into small chips about 20mm by an ordinary cutter. Secondly, the chips were immersed water for 96 hours at room temperature. Then, the mixture of rice straw chips and water was refined by an electric refining device for 10 minutes. The fourth process was forming and drying. A compression mold was made into square with dimensions of 100 mm in length, 100 mm in width, 40 mm in depth for forming and drying. The whole forming and drying process took 2 hours and the experimental condition was 5 kinds of pressures from 2MPa to 8MPa and the drying temperature was 110℃. Finally, the rice straw pulp was made into a board which was named biomass board. 2 pieces of biomass boards were made under every experimental condition. As a result, 10 pieces of biomass boards were made successfully under 5 kinds of experimental conditions. In addition, the densities and moisture contents of biomass boards were measured. The density was in the range of 0.785g/cm3～0.849g/cm3. The moisture content was in the range of 5.25%～7.16%. In order to investigate the appliance scope of biomass board, experiments measured mechanical properties which were three-point bending test and tensile test were carried out in this study. The experimental results show that the rupture stress of bending test was in the range of 9.73MPa～20.28MPa and the rupture stress of tensile test was in the range of 6.43MPa～10.89MPa. The results of this study showed that the biomass board was made successfully using the proposed method without any chemical adhesives or chemical reagents and the biomass board had enough mechanical strength. And then, this study further explored the heating temperature influence of the strength of the biomass board. The experimental condition was that the pressure was the same of 5MPa but the heating temperatures were 110℃、130℃、150℃、170℃、190℃. The results of this study showed that the densities were in the range of 0.83 g/cm3～0.91 g/cm3 , the moisture contents were in the range of 3.78%～7.00%, the rupture stresses of bending test were in the range of 13.35MPa～19.62MPa and the rupture stresses of tensile test were in the range of 3.00MPa～17.22MPa. The results indicated that heating temperature affected the strength of the biomass board. The rupture stress increased with the increase of heating temperature. In addition, the effect of different fiber length on mechanical properties of biomass board was investigated. The fiber length was 3 kinds which were 0mm