INDUSTRIAL CROPS AND PRODUCTS
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2026
·
IF 6.4
Chunping Wang,Qi Zhang,Yan Lu,Tong Liu,Le Wang,Yuhan Li,Siyu Zhao,Bin Li,Lili Fu,Yangbing Wen
Cellulose nanofibers effectively stabilized the aqueous boron nitride dispersion. • BN thermally conductive network was constructed within the substrate. • The BN thermally conductive network significantly boosts raw material pyrolysis. • The thermally conductive network can reduce residual glycerin by 29.32%. • The thermally conductive network can reduce residual nicotine by 74.24%. Traditional paper-based materials suffer from low heat transfer efficiency, severely limiting the uniform and efficient generation of aerosols in heated tobacco products (HTPs). This study utilized cellulose nanofibers (CNFs) to surface-activate highly thermally conductive hexagonal boron nitride (BN) and uniformly dispersed it in a paper-based reconstituted tobacco (RT) substrate, successfully constructing a continuous heat transfer network. The composite substrate exhibits excellent out-of-plane thermal conductivity (0.1559 W/(m·K)) and an extremely fast transient thermal response rate (13 °C/s). Distributed activation energy model (DAEM) kinetics further confirmed that this optimized thermal conductivity architecture significantly reduces the apparent mass-loss activation energy during the thermal conversion process. Mass spectrometry results showed that, compared to the control group, the relative EIC peak areas (reflecting the relative release intensities) of glycerol and nicotine increased to 134.50 ± 0.68% and 158.38 ± 0.25%, respectively. More importantly, it achieved exceptionally good puff-by-puff release consistency, reducing the coefficients of variation (CV) of glycerol and nicotine release to 13.7 ± 0.39% and 21.11 ± 0.65%, respectively. Crucially, this work demonstrates a high-value industrial application of crop-derived nanocellulose, highlighting its tremendous potential in engineering advanced, bio-based functional composites for thermal management. Download: Download high-res image (276KB) Download: Download full-size image
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Asia-Pacific Journal of Chemical Engineering
·
2026
·
IF 1.7
Shanjun Xu,Bing Xia,Penghang Yan,Deqing Kong,Dong Li
Metal corrosion causes significant economic losses and safety hazards, underscoring the urgent need for effective, environmentally friendly corrosion inhibitors. In this study, an organic–inorganic composite inhibitor, chitosan–glucose–BN (CS–GL–BN) was developed to protect Q235 mild steel in a 3.5-wt% NaCl solution. The inhibitor was synthesized by first reacting chitosan (CS) with glucose (GL) via a Schiff base reaction between the amino group of CS and the aldehyde group of GL, followed by the incorporation of hydroxylated boron nitride (OH-BN). Electrochemical measurements demonstrated an inhibition efficiency of 89.8% at 200 ppm after 72 h immersion, which was markedly higher than those of pure CS (64.3%) and the CS–GL intermediate (75.8%). The water contact angle on the steel substrate increased to 91.1°, indicating enhanced hydrophobicity, while the surface roughness was reduced to 0.694 μm (compared with 5.318 μm for bare steel). These combined surface modifications effectively hindered the penetration of corrosive agents. Molecular modeling studies further revealed that the N/O heteroatoms contributed to strong adsorption, thereby significantly blocking the access of corrosive species. This work presents a synergistic strategy in which CS is functionalized with a long-chain molecule (GL) and integrated with BN to form a hybrid corrosion inhibitor that exhibits high efficiency and improved sustainability.
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PROGRESS IN ORGANIC COATINGS
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2026
·
IF 7.9
Chaoyu Liu,Ying Li,Yushi Ding,Xiaocong Zhu,Shiyu Yuan,Yongtao Huang,Chuanbo Hu
To address the challenge of insufficient long-term protective performance in waterborne epoxy coatings (WEP) due to curing defects, this study successfully synthesized a ternary nanocomposite filler, BTA@OH-BN/PANI (BTP), through a chemical oxidation polymerization process. Hydroxylated hexagonal boron nitride (OH-BN) was employed as a functional scaffold, onto which the corrosion inhibitor benzotriazole (BTA) was loaded via a solution impregnation method. Camphorsulfonic acid-doped polyaniline (CSA-PANI) was then coated onto the surface using in situ polymerization. FT-IR, XPS, and FE-SEM characterization confirmed strong interfacial coupling between the components and the successful formation of the core-shell structure. Electrochemical impedance spectroscopy (EIS) results revealed that the BTP filler significantly improves coating performance through a multidimensional synergistic effect, including physical shielding, active repair, and interfacial passivation. At the scratch defect site, due to the responsive release of BTA and the passivation induced by PANI, the charge transfer resistance ( R ct ) increased from an initial value of 13,200 Ω·cm 2 to 25,600 Ω·cm 2 within 24 h, demonstrating significant active impedance recovery. After a 90-day immersion in a 3.5% NaCl solution, the BTP-WEP substrate retained its bright metallic lustre. This study provides a solid theoretical and experimental foundation for the development of high-performance, synergistic active, and environmentally friendly marine anti-corrosion coatings.
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CHEMICAL ENGINEERING JOURNAL
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2026
·
IF 12.5
Huanhuan Fan,Guilin Wu,Shiyang Shao,Peng Xiao,Binchun Liu,Yinghua Deng,Zhong Zhao,Jize Liu,Guangming Cai
A smart textile integrating bimodal sensing with flame retardancy and thermal insulation for harsh condition servicing. • The thermal insulation barrier protects functional components, enabling bimodal signaling capability at high temperatures. • A machine learning-assisted rescue system with precise motion recognition and visual-assisted guidannce was developed. Multimodal sensors have attracted considerable attention due to their great potential in complex scenarios. However, achieving the synergistic integration of multimodal sensing in flexible intelligent textiles while which could maintain functional response under harsh conditions remains a formidable challenge. Herein, a fiber-scale integration strategy based on coaxial wet spinning is proposed to fabricate a bimodal core-sheath fiber (denoted as PLMOB) featuring integrated flame-retardant thermal insulation, long afterglow luminescence, and self-powered sensing. By constructing a synergistic thermal insulation barrier of hexagonal boron nitride (h-BN) and silicon dioxide (SiO 2 ) in the sheath, the thermal conductivity is reduced to 61.28 mW·m −1 ·K −1 . Owing to the thermal insulation effect and the response performances of functional contents, the fiber maintains stable conductivity and persistent blue afterglow emission (>1200 s). Through embroidery process, PLMOB fibers are integrated into firefighting garment, enabling visual guidance. Furthermore, we developed a machine learning-based system which is capable of realizing accurate recognition of limb movements (97% accuracy) and luminescence. This work offers a promising strategy for next-generation intelligent textiles in fire scenarios. Download: Download high-res image (400KB) Download: Download full-size image
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Gels
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2026
·Vol. 12
·期 7
·644
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IF 6.4
Mengjia Feng,Chaoyue Zhao,Wenbo Li,Xinfeng Lv,Zichen Cui,Jianzeng Guo,Mai Hao
Silicone gel (SG) is widely used as a soft encapsulation material for high-voltage power devices because of its excellent flexibility, thermal stability, and electrical insulation. However, its intrinsically low thermal conductivity and susceptibility to partial discharge (PD) at triple-junction interfaces restrict long-term operational reliability. In this study, polydopamine-modified hexagonal boron nitride (P-BN) was introduced into silicone gel to construct thermally conductive and electrically insulating composites. The SG/P-BN composites exhibited reduced filler agglomeration and a more continuous filler–matrix morphology than the corresponding SG/BN composites, while the model-extrapolated trap analysis suggested composition-dependent changes in the higher energy charge trapping states of the P-BN-containing composites. As a result, the SG/P-BN composites exhibited enhanced thermal stability, reduced coefficient of thermal expansion, and improved heat-transfer capability, with thermal conductivity increasing from 0.183 W/m·K for pristine SG to 0.25 W/m·K. The composite containing 2 wt% P-BN showed the best insulation performance, with breakdown strength increasing from 24.05 to 28.45 kV/mm at 25 °C and from 19.59 to 24.71 kV/mm at 150 °C. Under a simplified triple-junction laboratory configuration, the PD inception voltage increased from approximately 3.1 kV for pristine SG to 4.1 kV for SG/P-BN2, accompanied by fewer high-amplitude discharges. This work demonstrates improved material-level thermal conductivity and electrical insulation performance of P-BN-containing silicone gel composites under the investigated laboratory conditions.
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JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
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2026
·
IF 7.1
Jianfeng Hu,Hailin Liu,Gary Histand
Novel dual‑mode cooling synergy：Thermosensitive microcapsule‑triggered dissolution heat absorption coupled with passive evaporative cooling. • Fast, on‑demand response: PNVCL shell collapse at ~38 °C enables rapid heat uptake during thermal shock. • h‑BN network for rapid heat transport: Bypasses the thermal conduction bottleneck of polymer shells in traditional PCM microcapsules. • Multifunctional integration: Self‑healing, high stretchability, strong adhesion, and moisture absorption in one material. Efficient cooling materials are essential for the reliable operation of high-power devices. Herein, a multifunctional composite hydrogel (PBTPB) is fabricated by integrating PNVCL@NH 4 Cl thermosensitive microcapsules and an h-BN thermal conduction network into a polyvinyl alcohol/borax/tannic acid (PVA/borax/TA) matrix. The h-BN network enhances thermal conductivity by providing rapid heat transport pathways. Upon reaching a critical temperature, the microcapsules release NH 4 Cl, whose dissolution actively absorbs heat, while continuous water evaporation from the hydrogel contributes to passive cooling. Experimental results show that PBTPB exhibits excellent heat dissipation performance. In simulated chip cooling tests, a temperature plateau (61–67 °C) lasting 1170 s is achieved, significantly delaying chip overheating. In hot water cooling experiments, the PBTPB-covered test tube reaches a final temperature 14 °C lower than that under natural cooling. Moreover, PBTPB possesses outstanding mechanical properties (elongation at break: 1163%), rapid self-healing (91% efficiency within 10 min), and strong interfacial adhesion (3.2 kPa to copper), ensuring close contact with heat sources and long-term reliability. Thus, this composite hydrogel holds great promise for cooling applications. Download: Download high-res image (127KB) Download: Download full-size image
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Journal of Inorganic and Organometallic Polymers and Materials
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2026
·
IF 6
Yue Yanling,Huang Bingyue,Liu Deyu,Wu Shaoyuan,Hu Jinghan,Ming Shiyi,Guan Xingyu,Zhang Yi,Wang Kui,Huang Weijiang,Yan Wei
Hexagonal boron nitride (h-BN) is inherently hydrophobic and lacks active functional groups on its surface. In this study, we modified h-BN with phytic acid and chitosan to create BN@PA-CS particles. These particles integrated into an aqueous polyurethane (WPU) matrix, along with the DIDOPO flame retardant, to form the WPU/BN@PA-CS/DIDOPO nanocomposite. We investigated the composite’s flame retardancy, thermal stability, rheological properties, and mechanical properties. The results demonstrated that BN@PA-CS and DIDOPO exhibit a significant synergistic effect in both gas and condensed phases for flame retardancy. When the mass fractions of BN@PA-CS and DIDOPO were 2 wt% and 7 wt% relative to WPU matrix, the optimal formulation WPU/BN@PA-CS2/DIDOPO7 achieved a UL-94 V-0 rating and increased the limiting oxygen index (LOI) to 24.2%. Additionally, the peak heat release rate (pHRR) and total heat release (THR) decreased by 49.3% and 66.1%, respectively, compared to pure WPU. Rheological and mechanical measurements indicated that the formulation WPU/BN@PA-CS2/DIDOPO7 exhibited a compatible combination of tensile stiffness, ductile toughness, and melt flow behaviour relative to other composite groups.Therefore, the DIDOPO/BN@PA-CS composite strategy provides experimental observations and mechanistic speculation for developing high-performance flame-retardant polyurethane composites, optimizing synergistic effects at specific ratios to enhance flame retardancy and mechanical properties. Graphical
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FirePhysChem
·
2026
·
IF 5.1
Qianyuan Yi,Xi He,Dandan Ji,Ao He,Chunlin Chen,Jinpeng Shen,Zhaoqian Li,Bo Wu,Chonghua Pei
NC/BNNSs composites with BNNSs addition ranging from 0 wt% to 0.4 wt% were prepared by 3D printing. The microstructure, combustion performance and mechanical properties of NC/BNNSs composites were characterized using field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), atomic force microscopy (AFM), and X-ray photoelectron spectroscopy (XPS), differential scanning calorimeter (DSC), high-speed photography, bomb calorimeter and tensile strength testing. Results show that BNNSs have a diameter ranging from 20–350 nm and a thickness of 2.6 nm. The morphology of NC/BNNSs composites is regular, and there is no obvious interface between the internal layers. With the increase of BNNSs content in the NC/BNNSs composites, its initial thermal decomposition and exothermic peak temperature gradually decrease. Compared with pure NC, the activation energy of NC/BNNSs is significantly reduced after adding BNNSs. The minimum activation energy was observed for 0.1% BNNSs, with a value of 173.3 kJ·mol⁻¹, which is a decrease of ∼123 kJ·mol⁻¹ compared to that of NC. The maximum combustion rate of NC/BNNSs with 0.2% BNNSs was 12.7 mm·s⁻¹, which increased by 3.4 mm·s⁻¹ compared with the combustion rate of NC (9.3 mm·s⁻¹). The heat of combustion gradually decreases, while the tensile strength gradually increases.
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Small
·
2026
·
IF 11.8
Xingmei He,Chao Jiang,Yingchun Long,Hao Yang,Na Wang,Fuxin Liang
Passive radiative cooling is promising for meeting refrigeration needs and addressing global energy challenges. However, conventional radiative coolers with static cooling properties suffer from limited performance under thermal shock and heat accumulation. Herein, an intelligent passive radiative cooling material combining highly efficient radiative thermal dissipation and dynamic thermal buffering was fabricated via a scalable one-pot strategy. A ternary PMMA/LA/BN porous composite was fabricated via an inverse Pickering emulsion template stabilized by self-assembly of amphiphilic Janus particles at the oil–water interface, and the porous framework effectively reflects solar radiation. Moreover, BN nanosheets serve as optical scattering centers, enhancing solar reflectivity, while lauric acid (LA) serves as a phase change component, and their synergistic integration endows the composite with high radiative cooling efficiency and dynamic thermal regulation capability. The porous composite exhibits a reflectivity of 95.1% in the solar spectral band (0.3–2.5 µm) and an emissivity of 96.5% in the atmospheric window band (8–13 µm). Meanwhile, the incorporation of LA effectively suppressed drastic fluctuations and demonstrated thermal shock mitigation capability. This porous composite, with synergistic radiative cooling and phase change thermal buffering, provides a strategy for developing adaptive thermal management materials in complex real-world environments.
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ACS Nano
·
2026
·
IF 17.3
Wang Lin,Wei Jingjiang,Wu Xiaoqian,Wang Zheng,Liu Yin,Tang Jiexin,Jiang Yanna,Xie Hao,Wang Weimin,Wang Hao,Ping Hang,Fu Zhengyi
The continuous miniaturization and increasing power density
of
modern electronic devices have led to severe localized heat accumulation,
posing significant challenges to device performance, reliability,
and lifespan. Passive radiative cooling offers a promising, energy-free
solution for thermal management. However, most reported radiative
cooling materials are mechanically fragile films, lacking the structural
stability required for long-term integration with electronic devices.
Inspired by the brick-and-mortar architecture of natural nacre structures,
we report a nacre-mimetic bulk boron nitride (BN) composite that combines
efficient radiative cooling with high mechanical strength. The composite
is fabricated via a pressure-driven, water-molecule-assisted orientation
and interfacial coupling strategy, in which sodium alginate (SA)-assisted
BN dispersion and Ca 2+ ionic cross-linking enable highly
ordered BN nanosheet alignment and strong interfacial bonding during
laminated hot pressing, resulting in a nacre-like hierarchical structure.
The resulting BN–SA composite exhibits a flexural strength
of 78.3 MPa and fracture toughness of 2.48 MPa·m 1/2 , alongside outstanding optical properties including high solar reflectance
( R = 89.7%) and mid-infrared emissivity (84.5%).
Consequently, net radiative cooling power reached 140.1 W·m –2 at night, lowering outdoor temperatures by 12.5 ° C.
This work provides a bio-inspired strategy for constructing mechanically
robust radiative cooling materials, offering a viable solution for
thermal management in high-heat-flux electronic devices.
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POLYMER COMPOSITES
·
2026
·
IF 4.9
Jie Chen,Qingjun Ding,Gai Zhao,Huafeng Li,Lin Yang,Guoqing Wang
Polyimide (PI)-based tribological composites containing carbon fiber (CF), molybdenum disulfide (MoS 2 ), and other solid lubricants have been extensively studied. However, the role of hexagonal boron nitride (h-BN) in regulating interfacial interactions and wear mechanisms in PI/CF/MoS 2 systems remains insufficiently understood. In this study, the effects of h-BN incorporation on the mechanical and tribological behaviors of PI/CF/MoS 2 composites were systematically investigated through experimental characterization combined with molecular dynamics (MD) simulations. The results revealed that h-BN addition improved hardness while reducing tensile strength and ductility due to the enhanced interfacial restriction and increased stress concentration. The tribological performance exhibited a non-monotonic dependence on h-BN content, with the optimal performance achieved at 5 wt.% h-BN. Scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS) analyses suggested that an appropriate h-BN content facilitated the formation of a relatively continuous transfer film, whereas excessive h-BN promoted filler agglomeration and interfacial degradation, leading to accelerated wear. Furthermore, MD simulations suggested that the reduced molecular mobility and fractional free volume at the optimal h-BN content were consistent with enhanced interfacial stability. The combined experimental and simulation results provide qualitative insights into the role of h-BN in regulating filler dispersion, interfacial interactions, and molecular chain dynamics. These findings establish a structure–property relationship for designing high-performance multi-filler PI-based tribological composites. Highlights Hexagonal boron nitride improves the hardness but reduces tensile strength. Friction and wear are minimized at 5 wt.% hexagonal boron nitride loading. Excess hexagonal boron nitride triggers agglomeration and abrasive wear. Molecular dynamics simulations corroborate experimental wear mechanisms.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Ruojia Ji,Yunhe Gong,Hongbin Yu,Xinhong Wang,Weichao Qin
The regulation of photoexcited charge carrier transfer behavior can substantially enhancing the photocatalytic performance of materials. In this study, a heterojunction photocatalyst, featuring cyano-modified carbon nitride tubes (Cy-CNT) and boron nitride (BN) nanosheets, was synthesized using a thermal condensation method. Characterization results and theoretical calculations revealed that the presence of cyano groups and unique C–N–B bonds in Cy-CNT/BN endowed it with excellent photocatalytic performance. The cyano modification induced the redistribution of charge density within the molecule and resulted in the formation of a locally uneven electronic configuration, which attenuated photogenerated electron-hole pair recombination. As an electron transfer bridge, the C–N–B bond established an interfacial transfer channel to promote electron migration and electron-hole pair separation. Consequently, the production of •O 2 − and 1 O 2 by Cy-CNT/BN was substantially enhanced by factors of 7.7 and 1.5, respectively, compared with those generated by the pristine carbon nitride tube (CNT). Ciprofloxacin was thus efficiently degraded by Cy-CNT/BN, and the kinetic constant (0.034 min −1 ) was 2.7 and 1.6 times that of CNT and Cy-CNT, respectively. Meanwhile, a floating photocatalyst was prepared by loading Cy-CNT/BN on polyurethane sponge, and the results indicated that this floating photocatalyst had good practicality in the remediation of antibiotic-contaminated surface water. The life cycle assessment results showed that, compared with CNT and Cy-CNT, Cy-CNT/BN exhibited minimum environmental impacts and had a reduced environmental burden. This paper presents a new strategy for charge carrier regulation of carbon nitride-based photocatalysts, which may promote the development of antibiotic-contaminated water remediation technology.
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