Editorial：Development of High-Performance Resin Matrix Composites-Volume Ⅱ

Chengyong Zheng¹Shaozhu Liu²Yang Liu¹Wenying Hui³Hongwei Lv¹He Bai⁴Jie Wang¹Xiangdong Liu^5*Wenliang Li⁶KH Leong⁷

• ¹Pipe China West Pipeline Company, Urumqi, China
• ²Pipe China North Pipeline Company, Langfang, China
• ³Pipe China Gansu Pipeline Company, Lanzhou, China
• ⁴Shanxi Oil & Gas Transmission Branch of Pipe China Northwest Pipeline Company, Xinzhou, China
• ⁵Changchun Institute of Applied Chemistry, Chinese Academy of Sciences (CAS), Changchun, China
• ⁶Military Veterinary Institute,AMMS, Changchun, China
• ⁷University of Adelaide, Adelaide, Australia

The field of materials science is undergoing a transformative shift toward designing materials that integrate functionality, sustainability, and mechanical robustness. In the Research Topic "Development of High-Performance Resin Matrix Composites-Volume Ⅱ", four articles are presented and featured in this collection exemplify this trend, addressing critical challenges in (1) wide-band shielding, (2) self-healing polymers,(3) recyclable thermosets, and (4) interfacial engineering for composites.These research efforts collectively push the boundaries of material performance while prioritizing environmental responsibility and practical applications. The increasing demand for advanced protective materials in extreme environments, particularly in aerospace and military applications, has driven significant research into multifunctional polymer composites.Exposured to intense solar radiation, including ultraviolet (UV), visible, and near-infrared wavelengths, structural materials could be degraded, and the lifespan of critical systems will be reduced. Traditional light-shielding materials have some limitations, such as narrow-spectrum protection, poor mechanical performance, or excessive weight. Poly(vinylidene fluoride) (PVDF), a fluoropolymer with excellent chemical stability and processability, has emerged as a promising matrix for such applications.However, achieving simultaneous broadband light blocking, high whiteness (for thermal reflectivity), and enhanced mechanical properties remains a challenge, necessitating innovative filler design and interfacial engineering.The development of PVDF composite films with broad-spectrum light shielding capabilities represents a significant advancement in protective materials. By integrating polydopamine (PDA) modified CsxWO₃ (CsxWO₃@PDA) and TiO₂, Fu et al. found that the synergistic filler design could help the composites achieve whiteness levels above 74 and transmittance less than 5% across 200-2500 nm, with near-zero transmittance below 1750 nm. This approach not only enhanced solar radiation blocking but also improved tensile strength by 14.8% through hydrogen bonding-mediated interfacial compatibility. Such materials hold promise for aerospace envelope systems and inflatable structures, where UV resistance and mechanical durability are paramount. The growing emphasis on sustainable engineering has spurred significant interest in bio-based polymers as alternatives to conventional petroleum-derived materials. Traditional self-healing polymers often rely on synthetic petrochemical feedstocks, raising concerns over environmental impact and long-term resource availability. Additionally, there are always high energy input (e.g., heat or UV light) required to trigger repair, which limited their applicability in biomedical or infrastructure settings where mild, autonomous healing is preferred.Vanillin, a lignin-derived compound, offers a renewable and chemically versatile platform for designing dynamic polymers, but balancing mechanical robustness with efficient self-repair at physiologically relevant temperatures remains a challenge.To address these limitations, Fu et al. fabricated vanillin-based polyurethanes (VPUs) that integrated dynamic imine bonds and hydrogenbonded networks, enabling rapid, body-temperature-activated healing without sacrificing performance. VPUs incorporating imine bonds could recover 98% of their original stress within 20 min at 36°C, enabled by hydrogen bond-mediated segmental mobility and microphase separation .The study showed that adjusting hard segment content (32.3-53.3%) could tune both mechanical strength (up to 29.1 MPa) and healing efficiency, offering a blueprint for bioresorbable implants and self-repairing infrastructure materials. This work bridges the gap between sustainability and functionality, as vanillin-derived components reduce reliance on petrochemical feedstocks. The widespread use of thermoset polymers in high-performance industries-such as aerospace, automotive, and wind energy-has long been hindered by their inherent irreversibility, making them difficult to recycle or reprocess. Conventional epoxy resins, while prized for their mechanical strength and thermal stability, generate significant waste at end-of-life due to permanent crosslinked networks. Recent advances in vitrimer chemistry, which introduce dynamic covalent bonds into thermosets, offer a promising solution by enabling reprocessability without sacrificing performance. However, many vitrimer systems still face trade-offs between recyclability and high-temperature stability, or rely on complex synthesis routes incompatible with industrial-scale production. The pursuit of high-performance composites for aerospace and structural applications has long been constrained by interfacial weaknesses between reinforcing fibers and polymer matrices. Carbon fiber composites, despite their exceptional strength-to-weight ratios, often suffer from suboptimal load transfer due to poor fiber-matrix adhesion, leading to delamination and premature failure under mechanical stress. Traditional sizing agentsprotective coatings applied to fibers during manufacturing-have primarily focused on processing aids rather than interfacial reinforcement. While