4 results match your criteria: "Chulalongkorn University Bangkok 10330 Thailand Sarawut.R@chula.ac.th.[Affiliation]"
Development of a laser induced graphene (LIG) and polylactic acid (PLA) shape memory polymer composite with simultaneous multi-stimuli response and deformation self-sensing characteristics.
Nanoscale Adv
September 2024
Center of Excellence in Polymeric Materials for Medical Practice Devices, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University Bangkok 10330 Thailand
Article Synopsis
- - This study introduces a new composite material made by integrating laser-induced graphene (LIG) onto a polylactic acid (PLA) substrate, resulting in a shape memory polymer composite (SMPC) that can respond to multiple stimuli and detect its own deformation.
- - LIG was successfully transferred onto the PLA substrate using hot compression, showing good adhesion and optimal electrical properties, which enable temperature control through Joule heating when power is applied.
- - The composite’s ability to react to infrared light and self-sense deformation via changes in electrical resistance provides a simple manufacturing method, paving the way for advanced materials that are both responsive and capable of real-time monitoring without the need for additional components.
Development of a magnified sunlight responsive shape memory bio-composite: effects of titanium nitride (TiN) nanoparticles on a bio-based benzoxazine/epoxy copolymer.
Nanoscale Adv
August 2024
Center of Excellence in Polymeric Materials for Medical Practice Devices, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University Bangkok 10330 Thailand
Article Synopsis
- This study investigated how loading titanium nitride (TiN) nanoparticles into a bio-based benzoxazine/epoxy copolymer affects the performance of the composite, particularly focusing on its shape memory properties under sunlight irradiation.
- Researchers found that varying levels of TiN (from 1 to 7 wt%) improved the light absorbance, thermal stability, and physical properties (visco-elastic and tensile) of the composites, with an optimum performance observed at TiN-5(wt%).
- The composite with the highest TiN loading (TiN-7(wt%)) demonstrated significant enhancements in shape memory performance, achieving a shape fixity ratio of 95% and a recovery time of 38 seconds, showcasing the
Correction: Improvements in properties of polybenzoxazine-based laser-induced graphene (LIG) by alloying with polyimide and modeling of production process.
Nanoscale Adv
July 2024
Center of Excellence in Polymeric Materials for Medical Practice Devices, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University Bangkok 10330 Thailand
Article Synopsis
- - This text is a correction notice for a previously published article, identified by the DOI: 10.1039/D3NA01026K.
- - The correction is likely to address errors or inaccuracies found in the original publication.
- - Readers are encouraged to refer to the corrected version for accurate information and findings.
Development of NIR light-responsive shape memory composites based on bio-benzoxazine/bio-urethane copolymers reinforced with graphene.
Nanoscale Adv
January 2024
Center of Excellence in Polymeric Materials for Medical Practice Devices, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University Bangkok 10330 Thailand
In this work, shape memory polymers (SMPs) were developed from a combination of a bio-based benzoxazine (BZ) monomer and polyurethane prepolymer (PU-prepolymer), both derived from bio-based raw materials. The bio-based BZ monomer (V-fa monomer) was synthesized through a Mannich condensation reaction using vanillin, paraformaldehyde, and furfurylamine. The bio-based PU-prepolymer was obtained by reacting palm oil polyol (MW = 1400 Da) and toluene diisocyanate (TDI).
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