Structural Nonlinearity in Polymer and Rubber Materials : Evaluation and Prediction using Nonlinear Probe, Differential Dynamic Modulus
| Project/Area Number |
14350359
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Composite materials/Physical properties
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| Research Institution | Nagaoka University of Technology |
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Principal Investigator |
ISONO Yoshinobu Nagaoka University of Technology, Professor, 工学部, 教授 (30135321)
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| Co-Investigator(Kenkyū-buntansha) |
TAKAHASHI Tsutomu Nagaoka University of Technology, Associate, 工学部, 助教授 (20216732)
KAWAHARA Seiichi Nagaoka University of Technology, Associate, 工学部, 助教授 (00242248)
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| Project Period (FY) |
2002 – 2004
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| Project Status |
Completed (Fiscal Year 2004)
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| Budget Amount *help |
¥13,900,000 (Direct Cost: ¥13,900,000)
Fiscal Year 2004: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 2003: ¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 2002: ¥11,300,000 (Direct Cost: ¥11,300,000)
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| Keywords | polymer / rubber / structural nonlinearity / nonlinear / probe / network structure / dynamic modulus / filler / 非線形プローブ |
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| Research Abstract |
Elucidation of mechanism of nonlinear viscoelasticity in polymer condensed system
In polymer condensed system, intermolecular entanglements are formed due to topological interaction. Nonlinear viscoelasticity in polymer condensed system has been found to be due to disentanglement in chain equilibration process and irreversible change in entanglement network.
2.Elucidation of mechanism of nonlinear viscoelasticity in nanofiller/organic composites
We have found that nonlinear viscoelasticity in nanofiller/organic composites is based on rupture and recovery in nanofiller network from the concurrent measurements of stress relaxation and electric conductivity.
3.Evaluation of modulus of bound rubber in nanofiller/organic composites
We have developed a novel method for evaluation of modulus of bound rubber in nanofiller/organic composites using acoustic techniques, scanning acoustic microscopy and longitudinal wave velocitometry.
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Report
(4 results)
Research Products
(38 results)
