2007 Fiscal Year Final Research Report Summary
Nanostructure control and functioning expression of sugar derivatives / clay composite materials
| Project/Area Number |
18550139
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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 |
Environmental chemistry
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| Research Institution | Kyoto University |
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Principal Investigator |
YOSHIOKA Mariko Kyoto University, Graduate School of Agriculture, Lecturer (30220594)
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| Co-Investigator(Kenkyū-buntansha) |
NISHIO Yoshiyuki Kyoto University, Graduate School of Agriculture, Professor (00156043)
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| Project Period (FY) |
2006 – 2007
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| Keywords | methyl-α-D-glucoside / hydroxypropyl sucrose / lignocellulose / organically modified clay / liquefaction / limiting density / polyurethane foam / nanocomposite |
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| Research Abstract |
Nanocomposite type polyols have been prepared from metyl-α-D-glucoside or hydroxypropyl sucrose dissolved within cyclic esters (ε-caprolactone, L-lactide) in which organically modified clays of 2〜5wt% amounts were pre-existed. By using them polyurethane foams have been made and characterized their densities, compression characteristics, DMA (compression mode) characteristics and all the rest. Nano-dispersion of clays resulted in upgrading of solid state properties, especially characteristics at low temperatures, and at the same time, deterioration in weathering resistance. For instance, the limiting density for compression testing was increase in value by the nano-dispersion of clays. From the above investigation, innovative betterment in the liquefaction of lignocellulosics was achieved. For the liquefied products thus obtained, nano-composite formation with clays and the functional capabilities of the products have been investigated. Nano-dispersion of certain clays within the compos
… More
ites was confirmed by X-ray diffraction studies as well as their increase in liquid viscosities. From the DMA measurement on the prepared polyurethane foams, advancement of physical properties, especially modulus of rigidity, and thermal resistance were observed. And from the SEM observation, uniformity of cell structure of the foams said to be attained by the clay nano-addition. For the certain clays, their simple addition into the liquefied lignocellulosic products was sufficient to attain their complete layer separation, realizing nanocomposite formations. Synthetic hectorite, one of the unmodified clays, was found to belong to an example of them. From DSC measurement, acceleration of three dimensional curing of phenol-liquefied biomass was found by the addition of clays and the extent of the acceleration of curing depended on the attainment degree of the clay's nano-dispersion. It was found that betterment of products was achieved by nano-addition of clays, and depending on the conditions of treatments the nano-dispersed clay acted as a catalyst for the deterioration reaction of the products. Less
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[Presentation] Plant biomass/Plastics composite materials2007
Author(s)
Mariko, Yoshioka
Organizer
The 3rd workshop and environment seminar 2007, Research and Development Center of Bamboo Resource
Place of Presentation
Kyotanabe Campus, Doshisya University, Kyotanabe
Year and Date
2007-06-03
Description
「研究成果報告書概要(欧文)」より
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[Presentation] Plant biomass/Polymer composite materials2007
Author(s)
Mariko, Yoshioka
Organizer
The 2nd periodic meeting of the wood-plastic composite materials committee, Wood Technological Association of Japan, Wood Composite Hall, Research Institute for Sustainable Humanosphere
Place of Presentation
Kyoto University, Uji
Year and Date
2007-02-23
Description
「研究成果報告書概要(欧文)」より
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[Presentation] Plant biomass/Plastics composite materials2007
Author(s)
Mariko, Yoshioka
Organizer
The 211th ordinary meeting of the composite materials committee, The Society of Materials Science, Japan
Place of Presentation
Osaka satellite, Doshisya University, Osaka
Year and Date
2007-01-19
Description
「研究成果報告書概要(欧文)」より
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[Presentation] Plant biomass/Plastics composite materials2006
Author(s)
Mariko, Yoshioka
Organizer
The 1st workshop of recycling technology and products for expediting Law on Promoting Green Purchasing, The Ecomaterials Forum, The Society of Non-Traditional Technology
Place of Presentation
Kanto industry - academia - government collaboration center, Nationai Institute of Advanced Industrial Science and Technology, Tokyo
Year and Date
2006-08-25
Description
「研究成果報告書概要(欧文)」より
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