Influence of processing conditions on the microstructure and properties of shape memory polyurethane membranes
Abstract
Solution-cast films of shape memory polyurethane are investigated by Fourier trans form infrared spectroscopy, differential scanning calorimetry, dynamic mechanical anal ysis, tensile properties, water vapor permeability, and shape memory effect tests. Samples cast at higher temperatures contain more hard segments in the crystalline state and better water vapor permeability than samples cast at lower temperatures. The change in water vapor permeability of shape memory polyurethane films with respect to temperature follows an S-shaped curve, and increases abruptly at T s , the shape memory temperature of the soft segment. The higher the modulus ratio at two specified temperatures before and after T s , the better the shape memory behavior of shape memory polyurethane.
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Best shape recoverabilities were obtained for samples cast at 120 °C.
“The SM properties were compared in bending tests; the best shape recoverabilities were obtained for samples casted at 120 °C.”
From Review on the Functional Determinants and Durability of Shape Memory Polymers (2010) · cites this paper as [167]
Cites
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Two-way shape memory polymer with “switch–spring” composition by interpenetrating polymer network
Wu, Y., Hu, J., Han, J., Zhu, Y., Huang, H., Li, J., & Tang, B. (2014) · J. Mater. Chem. A · doi:10.1039/c4ta03640a · Cited by 144 · see citing works
Self-citationReview on the Functional Determinants and Durability of Shape Memory Polymers
Pretsch, T. (2010) · Polymers · doi:10.3390/polym2030120 · Cited by 138 · see citing works
- Authors
- Hu, J. L., Zeng, Y. M., & Yan, H. J.
- Affiliations
- Hong Kong Polytechnic University (HK)
- Donghua University (CN)
- Venue
- Textile Research Journal
- Publisher
- SAGE Publications
- Published
- 2003-02
- Volume
- 73
- Issue
- 2
- Pages
- 172-178
- ISSN
- 0040-5175 (ISSN-L)
- 1746-7748
- OpenAlex
- W2130000502
- Cited by
- 43
- References
- 7
- Citations by year
- 2024: 1 · 2021: 3 · 2020: 2 · 2019: 3 · 2018: 1 · 2017: 1 · 2016: 2 · 2015: 1 · 2014: 2 · 2013: 2 · 2012: 5
- FWCI
- 1.95
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Textile Research Journal (publishedVersion)
- PolyU Institutional Research Archive (Hong Kong Polytechnic University) (submittedVersion)
- Funders
- Mitsubishi Heavy Industries
- Hong Kong Polytechnic University
- Topics
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer composites and self-healing
- Physical Sciences › Engineering › Mechanical Engineering › Advanced Materials and Mechanics
- Physical Sciences › Materials Science › Polymers and Plastics › Polymer crystallization and properties
- Keywords
- shape memory polyurethane, polyurethane membranes, water vapor permeability, shape memory effect, modulus ratio, tensile properties, microstructure
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