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Thermomechanical properties of polyurethane-shape memory polymer foam

Tobushi, H. / Okumura, K. / Endo, M. / Hayashi, S.

The thermomechanical properties of polyurethane-shape memory polymer foam were investigated by the compressive tests. The results are summarized as follows. (1) The material contracts uniformly in the axial direction with the ratio of lateral strain to axial strain 0.4 in the early stage, but about 0.15 thereafter. (2) The deformation resistance is large at low temperature and at high strain rate. (3) In the case of thermomechanical loading, strain is recovered at temperatures in the vicinity of T_g. The rate of strain recovery is 99%. The rate of strain fixity is 100%.

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Thermomechanical properties of polyurethane-shape memory polymer foam

Tobushi, H. / Okumura, K. / Endo, M. / Hayashi, S.

The thermomechanical properties of polyurethane-shape memory polymer foam were investigated by the compressive tests. The results are summarized as follows. (1) The material contracts uniformly in the axial direction with the ratio of lateral strain to axial strain 0.4 in the early stage, but about 0.15 thereafter. (2) The deformation resistance is large at low temperature and at high strain rate. (3) In the case of thermomechanical loading, strain is recovered at temperatures in the vicinity of T_g. The rate of strain recovery is 99%. The rate of strain fixity is 100%.

Thermomechanical properties of polyurethane-shape memory polymer foam

Tobushi, H. / Okumura, K. / Endo, M. / Hayashi, S.

The thermomechanical properties of polyurethane-shape memory polymer foam were investigated by the compressive tests. The results are summarized as follows. (1) The material contracts uniformly in the axial direction with the ratio of lateral strain to axial strain 0.4 in the early stage, but about 0.15 thereafter. (2) The deformation resistance is large at low temperature and at high strain rate. (3) In the case of thermomechanical loading, strain is recovered at temperatures in the vicinity of T_g. The rate of strain recovery is 99%. The rate of strain fixity is 100%.

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Title:

Thermomechanical properties of polyurethane-shape memory polymer foam

Contributors:

Tobushi, H. (author) / Okumura, K. (author) / Endo, M. (author) / Hayashi, S. (author)

Published in:

Journal of Intelligent Material Systems and Structures ; 12 ; 283-287

Publication date:

2001

Size:

5 Seiten, 4 Quellen

ISSN:

DOI:

https://doi.org/10.1106/FNSX-AP9V-QP1R-NMWV

Type of media:

Article (Journal)

Type of material:

Print

Language:

English

Keywords:

Polyurethan , Formgedächtniseffekt , Glasbildung , Kunststoffschaum , thermomechanische Eigenschaft , Glasübergang

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