Polymers

A Nomex aramid paper honeycomb sandwich structure is the core material of the main load-bearing structures in aviation. Macroscopic full-scale refined modeling faces the problems of large mesh quantity and high calculation cost. Homogenization equivalence is the core path to achieve its efficient simulation design. Most of the existing mature equivalent models are based on the ideal assumption th…

The immobilization of photocatalysts onto biodegradable polymeric supports has emerged as an effective strategy to overcome catalyst recovery limitations associated with conventional slurry photocatalytic systems. In this study, chitosan/TiO2 composite beads with different chitosan properties and TiO2 loadings were synthesized and evaluated for the photocatalytic removal of Reactive Black 5 (RB5)…

Atmospheric carbon dioxide (CO2) has reached an unprecedented 430 ppm, warming the planet by 50% compared with pre-industrial times and prompting a search for a quick and effective solution to control CO2 emissions. As a robust, renewable, biodegradable, and sustainable material, nanocellulose can serve as a strong support for many active molecules. Nanocellulose, whether in suspension, aerogel, …

Color instability in anterior composite restorations remains a primary cause for clinical replacement. While pre-polymerization thermal modification is increasingly utilized in daily practice, its precise impact on phase-specific and long-term optical resistance against continuous thermal aging and aggressive dietary staining remains unclarified. This in vitro study evaluated the impact of pre-po…

Reuse of industrial wastewater contributes to the conservation of freshwater resources and the implementation of the principles of the circular economy. In this study, the cyclic performance of a flat-sheet polyamide reverse osmosis membrane (PA-RO) for the advanced treatment of wastewater from a poultry slaughterhouse, pretreated by dissolved air flotation (DAF), was evaluated. The membrane was …

Stereocomplexes derived from natural polylactides are an important class of renewable plastics. Although neat polylactides generally exhibit low elongation at break and low Young’s modulus, stereocomplex formation significantly enhances their thermal resistance and stiffness (rather than toughness), dimensional stability, and controlled degradability, compared with simple polylactides. Consequent…

High-performance thermoplastics are gaining increasing attention for space applications. However, the extreme lunar environment requires multifunctional materials that combine electrical conductivity for electrostatic charge dissipation with low thermal conductivity for thermal insulation. One promising strategy to achieve this balance is through conductive polymer nanocomposites with controlled …

The need to enhance both the mechanical and the thermal insulation performance of alkali-activated mortars has stimulated interest in natural fiber-based reinforcement strategies, particularly for sustainability-driven design and low-carbon construction. This study explores the combined effect of natural kapok fiber, petroleum coke (PC) and waste tire rubber powder (WTRP) on the mechanical, therm…

In 2025, the oil and fat industry of the Republic of Kazakhstan showed steady growth, strengthening the country’s position as a major producer and exporter of vegetable oils. However, the production process generates large amounts of waste (up to 100 tons per day), and its recycling is an important part of the oil and fat industry’s economy. High-temperature processing of plant waste has proven t…

Polyphenylene sulfide (PPS) is a high-performance thermoplastic engineering material known for its excellent chemical resistance, thermal stability, and flame retardancy. In this work, the interfacial mechanical behavior of short-cut Kevlar fiber-reinforced PPS composites was systematically investigated by all-atom molecular dynamics (MD) simulations. By constructing a full-atom interface model b…

The study presents a sustainable, metal-free tanning system based on 2-chloro-4,6-dimethoxy-1,3,5-triazine (CDMT) and N-methylmorpholine (NMM), which stabilizes collagen through a zero-length crosslinking mechanism. Reactive triazine intermediates, generated in situ, selectively activate collagen carboxyl groups, forming active esters that subsequently react with amine functionalities to form ami…

Poly(ethylene terephthalate) (PET) waste management faces challenges as mechanical recycling limitations become apparent under strict EU regulations. This review critically evaluates PET glycolysis as a vital chemical recycling method, focusing on overcoming barriers to industrial implementation. While systematizing knowledge on reaction mechanisms and parameters, a significant research gap is id…

Hydroxypropyl cellulose (HPC) is extensively utilized as a binder and in controlled-release matrices, yet its production predominantly relies on high-purity α-cellulose derived from wood or cotton, which subjects supply chains to sustainability issues and fluctuations in feedstock prices. Annually, sugarcane bagasse, estimated at approximately 490–600 million tons annualy, presents a scalable, re…

The corrosion-protection performance of zinc oxide-hybrid polymeric coatings is traditionally attributed to the individual contributions of their constituent phases. This study reveals that the calcination temperature of zinc oxide (ZnO) filler is a critical, previously overlooked processing parameter that dictates not only filler crystallinity but also the collective synergistic failure mechanis…

In this study, a two-step electrodeposition strategy was proposed to fabricate an eco-friendly superhydrophobic polyaniline (PANI)/silane composite coating on mild steel for corrosion protection. The first step consists of creating a pure PANI adherent coating using a cyclic voltammetry technique and the second step consists of realizing superhydrophobic features using electrodeposition in mixed …

Sericin, a silk-derived protein recovered as a by-product of the textile industry, is a renewable biomacromolecule with considerable potential for sustainable material development. Chemical modification represents an effective strategy for its valorization. In this study, acetylation using acetyl chloride (AcCl) was selected as a model reaction to systematically investigate the reactivity of seri…

The development of 3D scaffolds that enable the reliable evaluation of cell migration remains a critical challenge in tissue engineering and wound-healing-related research. In this work, 3D scaffolds based on Chitosan/Collagen/Poly(lactic-co-glycolic acid) (PLGA)/Hydroxyapatite (HAp) nanoparticles are presented as a promising approach to studying the migration of the 3T3 cell line. The electrospi…

The design of biomass-derived polymer electrolytes with integrated multifunctionality represents a key strategy for sustainable energy storage devices. Here, we report a fully biomass-derived dual-network hydrogel electrolyte fabricated by combining Pectin (PC) and Chitosan (CTS), two naturally abundant polysaccharides. The Pectin/Chitosan dual-network hydrogel electrolyte (PC/CTS) forms a robust…

Fused deposition modeling (FDM) of polylactic acid (PLA) is plagued by dimensional inaccuracies—thermal shrinkage, warpage, and geometric distortion—that restrict its application in high-precision manufacturing. Blending thermoplastic polyurethane (TPU) with PLA enhances toughness, yet the coupled effects of blend ratio and printing parameters on dimensional accuracy remain unclear. This study es…

Lead-free polymer nanocomposites have attracted considerable attention as sustainable alternatives for ionizing radiation shielding. In this study, unsaturated polyester resin (UPR) nanocomposites containing hydrothermally synthesized Bi2WO6 nanoparticles (2.5–10 wt.%) were fabricated, and their gamma-ray shielding performance was evaluated experimentally and theoretically. The structural and mor…