Polymer blends and composites play crucial roles across aerospace, automotive, energy and structural applications, yet their long-term performance governed by complex time‐dependent properties and performance. Existing reviews often isolate chemical aging, mechanical behavior or characterization techniques, leaving a gap in understanding how molecular‐scale changes translate into macroscopic property loss. This review provides an integrated, mechanism‐driven synthesis of time‐dependent behavior in polymers, linking degradation chemistry, morphology evolution and property deterioration. We critically examine physical aging, photo‐oxidation, hydrolysis, viscoelastic relaxation, interfacial decay in composites and the role of environmental stressors. Quantitative trends from the literature are consolidated to clarify how mechanical strength, elongation, thermal transitions, dielectric response, and optical performance evolve. We also evaluate advanced analytical methods, including DMA, dielectric spectroscopy, thermally stimulated depolarization current and nanoscale dielectric tools that reveal molecular mobility and relaxation phenomena. Finally, we outline design guidelines and future directions, emphasizing predictive modeling, nanofiller‐based stabilization and the development of sustainable, long‐life polymer systems.
Polydimethylsiloxane (PDMS) is a widely used elastomer owing to its flexibility, optical clarity, ease of processing, and biocompatibility. However, its application in high‐performance systems is often limited by poor mechanical strength, modest thermal endurance, and high gas permeability. Recent advances in additiv...
S. Mandal, Rahul Kumar, Deepak Kumar et al.· Polymer Engineering & Sc...· 0 citations
Polybenzoxazines (PBz) represent a versatile class of high-performance thermosetting polymers that have attracted significant attention for advanced composite applications due to their unique combination of properties including high glass transition temperatures, low polymerization shrinkage, excellent thermal stabilit...
S. Asrafali, T. Periyasamy, Jaewoong Lee· Polymers· 0 citations
Fiber–matrix interface engineering plays a decisive role in determining the mechanical performance of fiber-reinforced polymer composites (FRPCs). Despite extensive research on surface modification strategies, translating improvements in interfacial properties into reliable structural performance remains a major challe...
M. Noman, N. Amor, Musaddaq Azeem et al.· Polymers· 3 citations
To overcome the challenges in understanding the complex curing and interfacial mechanisms of epoxy asphalt for high‐performance pavements, this study investigated performance evolution through the lens of interfacial energy. Unlike conventional research focusing on post‐cured properties, a high‐temperature pendant...
Li’er Chen, Feng-Lei Zhang, Hongzhou Zhu et al.· Journal of Applied Polymer S...· 0 citations
The advancement of stretchable organic photovoltaics is hindered by a fundamental trade-off between high optoelectronic performance and mechanical durability, in particular, a challenge rooted in the complex microstructure of conjugated polymers and their blends. This review addresses a critical literature gap on the m...
Meng-Yuan Gao, Jun-Jiang Wu, Yanhou Geng et al.· Advances in Materials· 0 citations
Elastomers are a class of polymers known for their elasticity and resilience, widely used in various industries. However, their application is limited by insufficient mechanical performance, including low stiffness, poor wear resistance and barrier properties. Therefore, elastomers are typically reinforced with fille...
Vihanga Kularatne, N. Dutta, Nevena Todorova et al.· Advanced Composites and Hybr...· 0 citations
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