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

Mingyan He^1,2, Jiayu Fu^1,2, Fangyu Guo^1,2, Dawei Jiang^1,2,*, Ting Yang^1,2, Miaojun Xu^1,2,*, Zijian Wu³, Bin Li^1,2,*

Journal of Polymer Materials, Vol.43, No.1, 2026, DOI:10.32604/jpm.2026.075379 - 03 April 2026

Abstract Phenolic resins are widely used in thermal protection, yet achieving simultaneous improvement in thermal stability and mechanical strength remains challenging. In this work, a vinyl-modified silicone resin (VMTQ) was synthesized and incorporated into a boron phenolic resin (BPF) matrix. Three composite ceramic fillers, Al₂O₃–SiO₂–ZrO₂ (ASZ), Al₂O₃–SiO₂–TiO₂ (AST), and Al₂O₃–SiO₂–MgO (ASM), were further introduced to construct a multi-oxide synergistic reinforcement system. Thermogravimetric analysis shows that the maximum decomposition rate decreases by 0.2–0.3%·min⁻¹, while the ASM/V3/BPF-3 composite exhibits a 74.53% increase in char yield at 800°C and a 163.3°C increase in initial decomposition temperature, confirming its significantly enhanced thermal More >

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 >

Awanda Wira Anggini^1,2, Rita Kartika Sari^1,*, Dede Hermawan¹, Muhammad Iqbal Maulana², Wahyu Hidayat³, Bora Jeong⁴, Muhammad Adly Rahandi Lubis^2,5,*

Journal of Renewable Materials, Vol.14, No.3, 2026, DOI:10.32604/jrm.2025.02025-0114 - 25 March 2026

Abstract Recent advancements in developing tannin-based non-isocyanate polyurethane (NIPU) resins have unlocked new possibilities for sustainable and eco-friendly wood adhesives. Unlike conventional polyurethane, NIPUs eliminate hazardous isocyanates, offering safer alternatives for industrial applications. Tannin, a naturally occurring polyphenolic compound, plays a pivotal role in enhancing these resins’ fire-resistance and super-hydrophobic properties. This review highlights key developments in synthesizing tannin-based NIPU, focusing on various polymerization techniques such as polyaddition, polycondensation, ring-opening polymerization, and rearrangement. These strategies contribute to improved mechanical strength, thermal stability, and resistance to water absorption. Recent studies demonstrate that tannin-based NIPU adhesives meet or… More > Graphic Abstract

Priscilla Yamilhet Montes-Orona¹, Mercedes Georgina Ramírez-Aragón², Isaela Villalpando-De La Torre³, Urbano Nava-Camberos¹, Jared Ceniceros-García¹, José Luis García-Hernández^1,*

Phyton-International Journal of Experimental Botany, Vol.95, No.2, 2026, DOI:10.32604/phyton.2026.074379 - 28 February 2026

Abstract Mexican oregano (Lippia graveolens Kunth) is an aromatic species of high culinary and medicinal relevance. In Mexico, more than 40 taxa with characteristic aroma and flavor are commercially recognized as oregano, with L. graveolens being the most widely distributed and economically important. Despite its relevance, few domesticated or semi-domesticated cultivars exist, and wild populations remain the main source of raw material, raising concerns regarding sustainability and quality standardization. The essential oil and oleoresins of L. graveolens possess recognized bioactivity, including antioxidant, antifungal, antibacterial, and anti-inflammatory properties, largely attributed to phenolic compounds such as thymol and carvacrol. Given the… More >

Jia Liu, Yuwu Zhang^*

The International Conference on Computational & Experimental Engineering and Sciences, Vol.33, No.2, pp. 1-1, 2025, DOI:10.32604/icces.2025.011553

Abstract The rigidity of the resin matrix is a critical factor affecting the impact resistance of composites [1]. However, the intrinsic relationship between resin matrix rigidity and ballistic performance remains insufficiently understood. To reveal the influence mechanisms of resin matrix rigidity on ballistic performance, this study compares the ballistic limits of PBO-140, PBO-200, Aramid III, and Aramid II fiber reinforced composites with resin matrices of different rigidities (epoxy resin, PX90, and PX30) through ballistic impact tests. The experimental results show that, the ballistic limit of composites with PX90 resin is higher than that of composites with… More >

Minjie Li¹, Wanhao Shi¹, Dingqian Yang², Manman Yuan², Jiabao Du², Xuandong Liu^1,*

Energy Engineering, Vol.122, No.10, pp. 4297-4312, 2025, DOI:10.32604/ee.2025.066337 - 30 September 2025

Abstract In Xinjiang, China, Oil-immersed paper bushings used in reactors are highly susceptible to discharge breakdown faults due to drastic fluctuations in environmental and oil temperatures. To mitigate this problem, oil-free and explosion-proof epoxy resin-impregnated paper (ERIP) bushings are recommended as replacements. This study develops a multi-physics(electric-thermal-fluid) coupling model for 750 kV high voltage reactors ERIP bushings. The model aims to comprehensively assess their thermal and electrical performance under extreme ambient temperatures ranging from −40°C to 90°C and oil temperatures varying from −10°C to 90°C. The results demonstrate that the bushing temperature rises consistently with increases… More >

Zhenzhou Wang¹, Rui Luo¹, Wenqing Yang¹, Seng Hua Lee^2,*, Wei Chen Lum³, Longjiang Liu⁴, Xiaojian Zhou¹, Jun Zhang^1,*

Journal of Renewable Materials, Vol.13, No.6, pp. 1229-1249, 2025, DOI:10.32604/jrm.2025.02024-0073 - 23 June 2025

Abstract Highly flame-retardant bio-based composites were prepared in this study. Firstly, glucose-citric acid (GC) resin was synthesized through the interaction of glucose and citric acid derived from agricultural and forestry sources. Polyvinyl alcohol (PVA) served as a toughening agent, whereas walnut shell powder (WSP) functioned as a filler in the formulation of a thermosetting bio-based GC-PVA-WSP (GCPW) composite with GC resin. The findings demonstrated that boric acid increased the limited oxygen index (LOI) value of GCPW to 33%, while simultaneously diminishing its total smoke production (TSP) by 99.9%, and achieving a flame retardant index (FRI) of More > Graphic Abstract

Aiga Ivdre^*, Ralfs Pomilovskis, Arnis Abolins

Journal of Renewable Materials, Vol.13, No.2, pp. 349-361, 2025, DOI:10.32604/jrm.2024.056820 - 20 February 2025

Abstract Studies on the use of renewable materials for various applications, including polymers, have gained momentum due to global climate change and the push towards a circular economy. In this study, polymer resins were developed through Michael 1,4-addition. The precursors were synthesized from tall oil-based acetoacetates derived from epoxidized tall oil fatty acids or their methyl esters. Two different epoxidation methods were employed: enzymatic epoxidation of tall oil fatty acids and ion-exchange resin epoxidation of tall oil fatty acid methyl esters. Following oxirane opening and transesterification with trimethylolpropane, further esterification or transesterification was carried out to… More >

Kristine Meile^1,*, Martins Romanovskis^1,2, Thomas Nicol³, Neil Hindle³, Aivars Zhurinsh¹

Journal of Renewable Materials, Vol.12, No.12, pp. 2135-2152, 2024, DOI:10.32604/jrm.2024.056775 - 20 December 2024

Abstract Fast pyrolysis of pre-treated birch wood in a super-heated steam environment produces a condensate rich in anhydrosugars. With the objective to obtain several product streams from this condensate, the possibility of extracting additional chemical species is explored, thus promoting the development of a pyrolysis-based biorefinery. In this work, the extraction and recovery of pyrolytic phenols from birch wood pyrolysis condensate was studied using ion exchange resins. With an aim to achieve effective phenol recovery, while obtaining high purity levoglucosan, basic ion exchange resins, both in OH⁻ and Cl⁻ form, as well as polystyrene-divinyl resins without functional… More > Graphic Abstract