Synthesis and characterization of soft polyurethane for pressure ulcer prevention
A series of super-soft polyurethanes was prepared by synthesizing lightly crosslinked polyurethane with low isocyanate:hydroxyl ([NCO]:[OH]) molar ratios. The starting materials were polymeric isocyanate (pMDI), polypropylene glycol (PPG), and 1,1,1-tris(hydroxymethyl)propane (TMP). The effects of t...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-08-01
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| Series: | Polymer Testing |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0142941822001581 |
| _version_ | 1811243285612593152 |
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| author | Pornlada Pongmuksuwan Wanlop Harnnarongchai |
| author_facet | Pornlada Pongmuksuwan Wanlop Harnnarongchai |
| author_sort | Pornlada Pongmuksuwan |
| collection | DOAJ |
| description | A series of super-soft polyurethanes was prepared by synthesizing lightly crosslinked polyurethane with low isocyanate:hydroxyl ([NCO]:[OH]) molar ratios. The starting materials were polymeric isocyanate (pMDI), polypropylene glycol (PPG), and 1,1,1-tris(hydroxymethyl)propane (TMP). The effects of the [NCO]:[OH] molar ratio and concentrations of the crosslinking agent TMP on the crosslink density and the thermal, dynamic-mechanical, and mechanical properties of the polyurethanes were determined. In addition, TMP generates chemical and physical crosslinks within polyurethane; therefore, data calculated using the Flory-Rehner equation and the rubber elasticity were compared. The success of the reaction between pMDI and PPG was confirmed using Fourier-transform infrared spectroscopy. The synthesized polyurethanes exhibited a mixing phase between soft and hard segments. The addition of TMP increased the crosslinking density, resulting in increased glass transition temperature, tensile properties, and hardness; however, the pressure distribution was suppressed. The synthesized polyurethane showed effective properties for pressure ulcer relief applications. |
| first_indexed | 2024-04-12T14:04:47Z |
| format | Article |
| id | doaj.art-e03f90484c8b40d4af0f8720bf88f696 |
| institution | Directory Open Access Journal |
| issn | 0142-9418 |
| language | English |
| last_indexed | 2024-04-12T14:04:47Z |
| publishDate | 2022-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Polymer Testing |
| spelling | doaj.art-e03f90484c8b40d4af0f8720bf88f6962022-12-22T03:30:07ZengElsevierPolymer Testing0142-94182022-08-01112107634Synthesis and characterization of soft polyurethane for pressure ulcer preventionPornlada Pongmuksuwan0Wanlop Harnnarongchai1Department of Materials and Production Technology Engineering, Faculty of Engineering, King Mongkut's University of Technology North Bangkok, Bangkok, 10800, ThailandCorresponding author.; Department of Materials and Production Technology Engineering, Faculty of Engineering, King Mongkut's University of Technology North Bangkok, Bangkok, 10800, ThailandA series of super-soft polyurethanes was prepared by synthesizing lightly crosslinked polyurethane with low isocyanate:hydroxyl ([NCO]:[OH]) molar ratios. The starting materials were polymeric isocyanate (pMDI), polypropylene glycol (PPG), and 1,1,1-tris(hydroxymethyl)propane (TMP). The effects of the [NCO]:[OH] molar ratio and concentrations of the crosslinking agent TMP on the crosslink density and the thermal, dynamic-mechanical, and mechanical properties of the polyurethanes were determined. In addition, TMP generates chemical and physical crosslinks within polyurethane; therefore, data calculated using the Flory-Rehner equation and the rubber elasticity were compared. The success of the reaction between pMDI and PPG was confirmed using Fourier-transform infrared spectroscopy. The synthesized polyurethanes exhibited a mixing phase between soft and hard segments. The addition of TMP increased the crosslinking density, resulting in increased glass transition temperature, tensile properties, and hardness; however, the pressure distribution was suppressed. The synthesized polyurethane showed effective properties for pressure ulcer relief applications.http://www.sciencedirect.com/science/article/pii/S0142941822001581PolyurethanePressure ulcer preventionDynamic mechanical analysis |
| spellingShingle | Pornlada Pongmuksuwan Wanlop Harnnarongchai Synthesis and characterization of soft polyurethane for pressure ulcer prevention Polymer Testing Polyurethane Pressure ulcer prevention Dynamic mechanical analysis |
| title | Synthesis and characterization of soft polyurethane for pressure ulcer prevention |
| title_full | Synthesis and characterization of soft polyurethane for pressure ulcer prevention |
| title_fullStr | Synthesis and characterization of soft polyurethane for pressure ulcer prevention |
| title_full_unstemmed | Synthesis and characterization of soft polyurethane for pressure ulcer prevention |
| title_short | Synthesis and characterization of soft polyurethane for pressure ulcer prevention |
| title_sort | synthesis and characterization of soft polyurethane for pressure ulcer prevention |
| topic | Polyurethane Pressure ulcer prevention Dynamic mechanical analysis |
| url | http://www.sciencedirect.com/science/article/pii/S0142941822001581 |
| work_keys_str_mv | AT pornladapongmuksuwan synthesisandcharacterizationofsoftpolyurethaneforpressureulcerprevention AT wanlopharnnarongchai synthesisandcharacterizationofsoftpolyurethaneforpressureulcerprevention |