2011 Fiscal Year Final Research Report
Basic Study on the Manufacture of Carbonized Wood Shaving Mat and its Application to Insutation Materials
| Project/Area Number |
21580199
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Wood science
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| Research Institution | Iwate University |
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Principal Investigator |
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| Project Period (FY) |
2009 – 2011
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| Keywords | 環境材料 / 建築構造 / 材料 / 省エネルギー / 断熱性 / 炭化 / 熱伝導率 |
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| Research Abstract |
Good formability was obtained at initial mat densities ranging 200-300 kg/m^3 and at carbonizing tenperatures ranging 400-500℃. Thermal conductivity of carbonized wood shaving mats was measured as a function of initial mat density and carbonizing temperature, and it was found that the minimun thermal conductivity was 25% less than that of wood shaving mats before carbonizing. To investigate the mechanisms behind this better insulation, apparent thermal connductivity of coarse pores which includs the effects of convective and radiative heat transfer was calculated by the use of a mix law of thermal conduction. On the other hand, relationships between carbonization temperature and adsorption ability to formaldehyde and ammonia were examined and then the mechanisms behind the adsorption ability were discussed from surface chemical characteristics and pore sizes.
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