Smart polyurethane composites: Magnetic-field-sensitive crosslinked shape-memory polyurethane composites
Smart polymers synthesized from renewable sources are precious because of the environmental pressures of producing polymers from fossil fuels. This study develops a new formulation of polyurethane (PU) from partly renewable resources. PU composites were prepared from castor oil (CO), polyethylene gl...
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| Format: | Article |
| Language: | English |
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Budapest University of Technology and Economics
2023-06-01
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| Series: | eXPRESS Polymer Letters |
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| Online Access: | http://www.expresspolymlett.com/letolt.php?file=EPL-0012312&mi=cd |
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| author | Berna Öztürk Tugce Inan Hüsnü Atakül Fatma Seniha Guner |
| author_facet | Berna Öztürk Tugce Inan Hüsnü Atakül Fatma Seniha Guner |
| author_sort | Berna Öztürk |
| collection | DOAJ |
| description | Smart polymers synthesized from renewable sources are precious because of the environmental pressures of producing polymers from fossil fuels. This study develops a new formulation of polyurethane (PU) from partly renewable resources. PU composites were prepared from castor oil (CO), polyethylene glycol (PEG3000), and hexamethylene diisocyanate (HDI). CO was used as both polyol and crosslinker. Butanediol and/or low molecular weight polyethylene glycol (PEG300) were added to the reaction medium as a chain extender. As a magnetic particle, natural magnetite or carbonyl iron was used in various amounts (0–10%). Fourier transform infrared (FTIR) spectroscopy, differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA), scanning electron microscope (SEM), optical microscope, and goniometer were used to characterize all composites and pure PU. A bending test was applied to investigate the shape fixity and shape recovery ratios of the samples. A range of hydrophilic/hydrophobic PU composites (water contact angle is between 56–87°) having various melting and glass transition temperatures were successfully prepared. A PU composite having a good shape recovery ratio (Rr = 96.1%) in a magnetic field was prepared using 10% magnetite. The PU composites were also thermosensitive. |
| format | Article |
| id | doaj-art-29b05fac4f6344079a7ba3173e64a873 |
| institution | Kabale University |
| issn | 1788-618X |
| language | English |
| publishDate | 2023-06-01 |
| publisher | Budapest University of Technology and Economics |
| record_format | Article |
| series | eXPRESS Polymer Letters |
| spelling | doaj-art-29b05fac4f6344079a7ba3173e64a8732025-08-20T03:29:32ZengBudapest University of Technology and EconomicseXPRESS Polymer Letters1788-618X2023-06-0117666067310.3144/expresspolymlett.2023.48Smart polyurethane composites: Magnetic-field-sensitive crosslinked shape-memory polyurethane compositesBerna ÖztürkTugce InanHüsnü AtakülFatma Seniha GunerSmart polymers synthesized from renewable sources are precious because of the environmental pressures of producing polymers from fossil fuels. This study develops a new formulation of polyurethane (PU) from partly renewable resources. PU composites were prepared from castor oil (CO), polyethylene glycol (PEG3000), and hexamethylene diisocyanate (HDI). CO was used as both polyol and crosslinker. Butanediol and/or low molecular weight polyethylene glycol (PEG300) were added to the reaction medium as a chain extender. As a magnetic particle, natural magnetite or carbonyl iron was used in various amounts (0–10%). Fourier transform infrared (FTIR) spectroscopy, differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA), scanning electron microscope (SEM), optical microscope, and goniometer were used to characterize all composites and pure PU. A bending test was applied to investigate the shape fixity and shape recovery ratios of the samples. A range of hydrophilic/hydrophobic PU composites (water contact angle is between 56–87°) having various melting and glass transition temperatures were successfully prepared. A PU composite having a good shape recovery ratio (Rr = 96.1%) in a magnetic field was prepared using 10% magnetite. The PU composites were also thermosensitive.http://www.expresspolymlett.com/letolt.php?file=EPL-0012312&mi=cdpolymer compositespolyurethanesshape memory polymerrenewable resourcesmagnetic polymers |
| spellingShingle | Berna Öztürk Tugce Inan Hüsnü Atakül Fatma Seniha Guner Smart polyurethane composites: Magnetic-field-sensitive crosslinked shape-memory polyurethane composites eXPRESS Polymer Letters polymer composites polyurethanes shape memory polymer renewable resources magnetic polymers |
| title | Smart polyurethane composites: Magnetic-field-sensitive crosslinked shape-memory polyurethane composites |
| title_full | Smart polyurethane composites: Magnetic-field-sensitive crosslinked shape-memory polyurethane composites |
| title_fullStr | Smart polyurethane composites: Magnetic-field-sensitive crosslinked shape-memory polyurethane composites |
| title_full_unstemmed | Smart polyurethane composites: Magnetic-field-sensitive crosslinked shape-memory polyurethane composites |
| title_short | Smart polyurethane composites: Magnetic-field-sensitive crosslinked shape-memory polyurethane composites |
| title_sort | smart polyurethane composites magnetic field sensitive crosslinked shape memory polyurethane composites |
| topic | polymer composites polyurethanes shape memory polymer renewable resources magnetic polymers |
| url | http://www.expresspolymlett.com/letolt.php?file=EPL-0012312&mi=cd |
| work_keys_str_mv | AT bernaozturk smartpolyurethanecompositesmagneticfieldsensitivecrosslinkedshapememorypolyurethanecomposites AT tugceinan smartpolyurethanecompositesmagneticfieldsensitivecrosslinkedshapememorypolyurethanecomposites AT husnuatakul smartpolyurethanecompositesmagneticfieldsensitivecrosslinkedshapememorypolyurethanecomposites AT fatmasenihaguner smartpolyurethanecompositesmagneticfieldsensitivecrosslinkedshapememorypolyurethanecomposites |