Publications by authors named "P Luengrojanakul"
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.
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
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.
Article Synopsis
- Laser-induced graphene (LIG) is usually made from polyimide, but its flexible nature limits its use in certain applications; polybenzoxazine is being investigated as an alternative substrate despite its brittleness and lower thermal stability.
- The study aims to improve the properties of polybenzoxazine by combining it with polyimide, enhancing factors like toughness, char residue, and thermal stability, and further analyzing the resultant LIG's electrical resistivity and structural features.
- The research yielded LIG with better electrical properties and structure compared to traditional polybenzoxazine, achieving impressive results with optimal laser settings, and validated a quadratic model to describe the production process effectively.
Shape-memory carbon fiber (CF) polymer composites reinforced with graphene nanoplatelets (GnPs) as a filler based on a bio-based V-fa/ECO copolymer were prepared at different graphene GnPs and CF mass fractions using the hand lay-up and hot-pressing methods. The obtained composite specimens were subjected to flexural, dynamic mechanical, and shape-memory analyses. The obtained results revealed that the flexural strength and modulus were improved by the addition of the GnPs and CF due to the improvement in the interfacial adhesion and fiber reinforcement with up to 3 wt.
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