Junping Wang^1,2, Mingbiao Xu^3,*, Wei Xiao^1,*

Journal of Polymer Materials, Vol.43, No.1, 2026, DOI:10.32604/jpm.2026.077100 - 03 April 2026

Abstract Formulating oil-based drilling fluids (OBDFs) with an ultra-low oil-to-water ratio (OWR ≤ 60:40) presents a formidable stability challenge due to the maximized interfacial area and intensified stress on the interfacial film under high-temperature, high-density conditions. To address this, we engineered a synergistic stabilization system through molecular and colloidal design. A novel hyperbranched polyamide emulsifier (epoxidized soybean oil polyamide) (ESOP), synthesized from epoxidized soybean oil, exhibits superior thermal stability and interfacial activity due to its hyperbranched architecture. Combined with calcium petroleum sulfonate (CPS) and hydrophobic nanosilica (HNs), it enables a high-performance OBDF with an ultra-low OWR… More >

Chin-Wen Liao^1,2,3, En-Shiuh Lin¹, Wei-Lun Huang^4,5,6, I-Chi Wang⁷, Bo-Siang Chen^8,*, Wei-Sho Ho^1,2,9,*

Journal of Polymer Materials, Vol.43, No.1, 2026, DOI:10.32604/jpm.2026.076807 - 03 April 2026

Abstract The demand for extended electric vehicle (EV) range necessitates advanced lightweighting strategies. This study introduces a materials genome approach, augmented by machine learning (ML), for optimizing lightweight composite designs for EVs. A comprehensive materials genome database was developed, encompassing composites based on carbon, glass, and natural fibers. This database systematically records critical parameters such as mechanical properties, density, cost, and environmental impact. Machine learning models, including Random Forest, Support Vector Machines, and Artificial Neural Networks, were employed to construct a predictive system for material performance. Subsequent material composition optimization was performed using a multi-objective genetic More >

Yujie Zhang, Yankai Zhao, Zhuang Zhao, Mengmeng Shan, Bochen Xu, Haoquan Xue, Junxuan Xu, Fan Wu, Qiang He^*

Journal of Polymer Materials, Vol.43, No.1, 2026, DOI:10.32604/jpm.2026.076617 - 03 April 2026

Abstract This study presents a sustainable approach for the valorization of spent coffee grounds (CG) by converting them into carboxylated cellulose nanofibrils (CG-TCNF) via formic acid/hydrogen peroxide pretreatment followed by TEMPO/NaClO/NaClO₂-mediated oxidation. The pretreatment efficiently removed lignin, hemicellulose, and other non-cellulosic components, yielding purified cellulose (CG-C) with high crystallinity (CrI = 84%). Subsequent regioselective oxidation introduced carboxyl groups at the C6 position of cellulose chains, achieving a high carboxylate content of 1.4 mmol/g. The resulting CG-TCNF exhibited a well-dispersed nanofibrillar morphology with an average width of 3.57 nm and a high specific surface area of 265 m²/g. More >

Yifan Wang¹, Xishun Qiu¹, Chao Wu¹, Jiazhao Li¹, Chang Dai¹, Bowen Han¹, Jinhu Hu², Mingliang Ma^1,*, Ye-Tang Pan^2,*

Journal of Polymer Materials, Vol.43, No.1, 2026, DOI:10.32604/jpm.2026.076443 - 03 April 2026

Abstract Polyurea (PUA) is widely valued in protective coatings and structural reinforcement because of its impressive mechanical strength and resistance to corrosion. Its high flammability, together with the poor dispersion that often comes with simply blending in flame retardants, continues to limit its use in demanding environments. To overcome these issues, this study introduces a different approach. We grafted 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) onto the surface of a metal–organic framework (MOF) and then partially amino-functionalized the DOPO layer, ultimately creating an amino-modified DOPO–MOF hybrid. The introduced amino groups can directly react with the isocyanate (–NCO) groups in the… More >

Guoguan Wu^1,2, Baipei Liu^1,3, Dawei Jiang^1,2,*, Haorui Yu¹, Jiayu Fu^1,2, Chengze Yu¹, Hanbin Wang¹, Miaojun Xu^1,2,*, Zijian Wu⁴, Bin Li^1,2,*

Journal of Polymer Materials, Vol.43, No.1, 2026, DOI:10.32604/jpm.2026.075384 - 03 April 2026

Abstract Epoxy resins are extensively employed in the construction, electronics, automotive, and aerospace industries owing to their outstanding mechanical strength, chemical resistance, and electrical insulation. However, their intrinsic flammability, poor wear resistance, and hydrophilicity significantly restrict broader applications. To address these challenges, a novel multifunctional coating (CEOS-DOPO-PDMS) has been designed and fabricated via an NP-GLIDE approach. The system integrates 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) as a reactive phosphorus-based flame retardant, epoxy-terminated polydimethylsiloxane (EP-PDMS) as a hydrophobic segment, and cycloaliphatic epoxy-functionalized oligosiloxanes (CEOS) as a cross-linking co-reactant. The resulting CEOS-DOPO-PDMS hybrid precursor was blended with bisphenol A diglycidyl ether (DGEBA)… More > Graphic Abstract

Sultan Binalrimal^1,*, Abdullah M. Alshehri², Mohammed Mustafa^2,*, Ali Robaian Alqahtani², Rasha Alharthi³, Basil Almutairi⁴

Journal of Polymer Materials, Vol.43, No.1, 2026, DOI:10.32604/jpm.2026.075142 - 03 April 2026

Abstract Composite resin restorations are routinely exposed to acidic and chromogenic beverages that may alter their surface integrity over time. This in-vitro study evaluated the surface roughness behavior of two universal single-shade (Unishade) composites and two conventional multi-shade composites following immersion in commonly consumed staining solutions and assessed whether repolishing could restore smoothness after degradation. A total of 120 standardized disc specimens were fabricated and allocated to four material groups, with each group subdivided into distilled water, cola, and coffee immersion subgroups. Surface roughness was recorded at baseline, after one week, after one month, and following a… More >

T. Subash^1,*, M. Sekar², R. Selvabharathi³

Journal of Polymer Materials, Vol.43, No.1, 2026, DOI:10.32604/jpm.2026.075026 - 03 April 2026

Abstract The two distinct types of composite materials (5% to 10%) were developed using recycled polyvinyl alcohol fiber (RPA), silicon nitride fiber (SN), and reduced carbon nanoparticles (RCN). Enhanced microstructural properties and mechanical strength were attained through the application of the 3-glycidoxypropyltrimethoxysilane coupling method. The combination of the resin-like properties of RPA-SN fiber resulted in the formation of robust outer strength and a high bonding structure. RPA-RCN composite materials with a weight percentage of 10% exhibited a tensile strength of 42 MPa. In contrast, RPA-SN-RCN composite materials containing 5% to 10% demonstrated enhanced tensile, bending, and… More >

Peng Gong¹, Tingzheng Yan¹, Kang Yang², Yumei Yue^2,*, Shude Ji^2,*, Lin Ma³, Yilun Wu¹

Journal of Polymer Materials, Vol.43, No.1, 2026, DOI:10.32604/jpm.2025.074794 - 03 April 2026

Abstract To comprehensively explore the impact of binder content on the mechanical properties of the Polymer bonded explosive (PBX) substitute material (Polymer-bonded Analogue Explosive (PAE)—it is renowned for its outstanding high-temperature resistance, exceptional mechanical properties, excellent chemical stability, and superior electrical insulation), a series of experiments are meticulously carried out. The dynamic and static mechanical properties, along with the microstructure of PAE, are precisely measured through the Split Hopkinson Pressure Bar (SHPB) test, static compression tests, and Scanning Electron Microscopy (SEM). The dynamic performance test outcomes clearly indicate that both the binder content (2%, 4%, 6%)… More >

Kuok Ho Daniel Tang^*

Journal of Polymer Materials, Vol.43, No.1, 2026, DOI:10.32604/jpm.2025.074391 - 03 April 2026

Abstract Biobased biodegradable plastics have gained increasing attention as sustainable alternatives to petroleum-based materials in food packaging, offering biodegradability, renewability, and reduced environmental impact. This review adopts a narrative review approach, integrating studies published between 2015 and 2025 from major databases to critically evaluate the recent advances, feasibility, and limitations of biobased biodegradable plastics in food packaging. Literature was thematically analyzed by material type and functional enhancement to assess their feasibility and limitations for sustainable packaging applications. Recent advances have focused on enhancing their mechanical, barrier, and functional properties through polymer blending, nanoparticle reinforcement, and incorporation… More >

Edja Florentin Assanvo^1,*, N’Dri N’Guessan Gervais Ziabo¹, Kohi Alfred Kouame², David Boa¹

Journal of Polymer Materials, Vol.43, No.1, 2026, DOI:10.32604/jpm.2026.073634 - 03 April 2026

Abstract This study aims to synthesise, characterise and evaluate the performance characteristics of packaging films based on biodegradable natural resources incorporated with nanoparticles. Particularly, it is focused on the valorisation of the fibers from the underexploited Lonchocarpus cyanescens plant from West Africa as raw renewable lignocellulose biomass material source for the production of carboxymethylcellulose (CMC). To this end, biodegradable films were prepared from CMC derived from the fibers of the Lonchocarpus cyanescens plant, and collagen. In order to improve the properties of these films, in particular their mechanical and humidity resistance and their ability to fight microbes, silver… More >