Shape Memory Behavior and Self-Healing Effects of Dynamically Vulcanized TPU/ENR Thermoplastic Elastomeric Blends

S, Aiswarya; Banerjee, Shib Shankar

doi:10.1021/acsapm.3c02280

Cited by 3 publications

(1 citation statement)

References 64 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, this reliance on external forces hinders the practical application of SHPs. An effective strategy to overcome this obstacle is to exploit the shape memory effect (SME) to promote repair. , …”

Section: Introductionmentioning

confidence: 99%

Self-Healing Polymers Coupling Shape Memory Effect

Xu,

Ping,

Gong

et al. 2024

Langmuir

View full text Add to dashboard Cite

In recent years, shape memory polymers (SMPs) and self-healing polymers (SHPs) have been research hotspots in the field of smart polymers owing to their unique stimulus response mechanisms. Previous research on SHPs has primarily focused on contact repair. However, in instances where substantial cracks occur during practical use, autonomous closure becomes challenging, impeding effective repair. By integration of the shape memory effect (SME) with SHPs, physical wound closure can be achieved via the SME, facilitating subsequent chemical/physical repair processes and enhancing self-healing effectiveness. This article reviews key findings from previous research on shape memory-assisted self-healing (SMASH) materials and addresses the challenges and opportunities for future investigation.

show abstract

Section: Introductionmentioning

confidence: 99%

Self-Healing Polymers Coupling Shape Memory Effect

Xu,

Ping,

Gong

et al. 2024

Langmuir

View full text Add to dashboard Cite

show abstract

Functional and ultrastretchable thermoplastic elastomeric materials: Influence of carbon dots on fluorescence, dielectric and mechanical properties

Shrikhande,

Rana,

Molla

et al. 2024

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

Carbon dots (CDs) are an interesting nanomaterial due to their tunable photoluminescence and other functional properties. Herein, by introducing amine‐functionalized CDs nanoparticles onto macromolecular chains of maleic anhydride grafted styrene‐ethylene‐butylene‐styrene (SEBS‐g‐MA) via a possible ring‐opening reaction of anhydride with amine, a mechanically robust and ultrastretchable thermoplastic elastomeric materials with fluorescence and dielectric functionality was developed. The amine‐functionalized CDs nanoparticles were synthesized from pyrene precursor by hydrothermal treatment. The transmission electron micrograph, Raman, Fourier transform infrared, and x‐ray photoelectron spectra confirmed the formation of highly crystalline graphitized structure of the CDs nanoparticles. Fluorescence and UV–Vis spectroscopy were used to evaluate the optical properties of the developed materials. The developed CDs/SEBS‐g‐MA nanocomposites exhibited strong intense green fluorescence compared with the pure SEBS‐g‐MA film. The thermal stability of the developed nanocomposites was improved by an increase of the Tmax by about 18°C. In addition, the developed composite showed high stretchability (strain at break ~1000%), good mechanical strength, and dielectric properties (room temperature dielectric constant ~5.2). The enhanced dielectric property of the developed composites may be due to the space charge accumulation and induced interfacial polarization at the filler–matrix interface.

show abstract

Reactive compatibilization of zinc dimethacrylate on dynamically vulcanized thermoplastic polyurethane/silicone rubber blends

Li,

Tang

2024

Polymer Engineering & Sci

View full text Add to dashboard Cite

Thermoplastic polyurethane (TPU)/silicone rubber (SR) thermoplastic vulcanizates (TPVs) are considering to be a promising material for smart wearable technologies due to its low temperature and high temperature resistance and biological affinity. However, the poor compatibility between TPU and SR phases limits its practical application. In this paper, TPU/SR TPVs were prepared through dynamic vulcanization and zinc dimethacrylate (ZDMA) was used to improve the interface between TPU and SR phases. FTIR results and theoretical calculation showed that complex reactions including the graft‐polymerization of ZDMA occurred onto the main chains of TPU and SR in the presence of peroxides to form a strong interface and improve the compatibility. Dynamic mechanical analysis implied the difference of glass transition temperature of the two phases reduced from 86.4 to 67.3°C with the addition of 5 wt% of ZDMA compared to original TPVs. Scanning electron microscope showed that with the addition of 5 wt% ZDMA, the crosslinked SR phase formed a network structure when TPU phase was etched with dimethyl sulfoxide. By adding 5 wt% of ZDMA, the torques during mixing, tensile strength, and tear stress of TPVs were improved by 150%, 273%, and 217% respectively, compared to the TPVs without ZDMA.Highlights The compatibility between TPU and SR was improved by adding ZDMA. The mechanism for ZDMA enhancing the interface of TPU/SR TPVs was discussed. The addition of ZDMA improves the mechanical properties of TPU/SR TPVs. An appropriate loading of ZDMA used for TPU/SR TPVs was discussed.

show abstract

Shape Memory Behavior and Self-Healing Effects of Dynamically Vulcanized TPU/ENR Thermoplastic Elastomeric Blends

Cited by 3 publications

References 64 publications

Self-Healing Polymers Coupling Shape Memory Effect

Self-Healing Polymers Coupling Shape Memory Effect

Functional and ultrastretchable thermoplastic elastomeric materials: Influence of carbon dots on fluorescence, dielectric and mechanical properties

Reactive compatibilization of zinc dimethacrylate on dynamically vulcanized thermoplastic polyurethane/silicone rubber blends

Contact Info

Product

Resources

About