ACS Sustainable Chemistry & Engineering
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2018
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IF 6.14
Huan Wang,Wensheng Lin,Xueqing Qiu,Fangbao Fu,Ruisheng Zhong,Weifeng Liu,Dongjie Yang
In this work, lignin-decorated ZnO composite was prepared via an in situ synthesis method using industrial alkali lignin (AL). First, the AL was modified by quaternization to prepare quaternized alkali lignin (QAL). The microstructure and optical properties of the QAL/ZnO composite were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and UV–vis and photoluminescence (PL) spectroscopy. These results showed that the prepared QAL/ZnO composite possessed a flowerlike structure and showed excellent synergistic UV-absorbent properties. Interestingly, the anti-UV performance and mechanical properties of polyurethane (PU) were significantly improved when it was blended with the resulting QAL/ZnO. In comparison with pure PU film, the UV transmittance of the PU film was rapidly reduced. Furthermore, the tensile strength and elongation at break of PU film blended with QAL/ZnO were significantly improved, which was due to good compatibility between QAL/ZnO and PU matrix. Results of this work provide a significant and practical approach for the high value-added utilization of lignin as a functional material.
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高影响因子
POLYMER DEGRADATION AND STABILITY
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2026
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IF 8.1
Jingwei Zhao,Junchen Liu,Shufan Song,Wanfu Wang,Shibing Sun,Wufei Tang,Xiaodong Jin
A UV-cured P/N/Si hybrid network enables durable flame retardancy in RPUF. • Organic–inorganic crosslinking suppresses water-induced coating deterioration. • The coating retains a UL-94 V-0 rating after 14 d of water immersion. • Flame retardancy persists after 31 d, with an LOI of 26.0%. • The hybrid network delays thermal degradation and promotes stable char. To improve the fire safety of rigid polyurethane foam (RPUF), a phosphonic-acid-containing reactive monomer (TP) was synthesized and used with phytic acid to prepare a UV-cured flame-retardant coating (TA). TA increased the limiting oxygen index (LOI) of RPUF from 19.0% to 55.0%, achieved a UL-94 V-0 rating, and reduced the peak heat release rate by 83.0%. However, TA exhibited poor water resistance: after only 0.5 h of water immersion, its mass loss reached 64.7%, the LOI sharply decreased to 22.3%, and the V-0 rating was lost. To improve durability, polyurethane acrylate, pentaerythritol triacrylate, and SiO 2 were introduced to construct an organic–inorganic hybrid network. The optimized P 3 P 27 S 3 T 4 coating exhibited an initial LOI of 44.5% and, after 0.5 h of immersion, retained an LOI of 33.3% and a V-0 rating with only 16.2% mass loss. It maintained a V-0 rating after 14 d and an LOI of 26.0% after 31 d. Moreover, its maximum mass-loss-rate temperature and residue at 800 °C reached 423.22 °C and 30.98 wt%, respectively. These results demonstrate that the hybrid network substantially improves water resistance while maintaining effective flame retardancy and thermal stability.
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高影响因子
COMPOSITES PART B-ENGINEERING
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2018
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IF 4.92
Nadia Taloub,Abdelkhalek Henniche,Li Liu,Jun Li,Nahla Rahoui,Mohammad Hegazy,Yudong Huang
The pursuit of improving the performance of rigid-rod polymeric fibers using a new inorganic nano-materials and efficient methods is very attractive topic. The combination of the unusual properties of both materials could definitely produce an outstanding final product. Herein, we proposed a simple grafting method of a graphene-like titanium carbides Ti 3 C 2 (OH) 2 nanosheets (MXene) onto PIPD surface via covalent bond by using (3-Aminopropyl) triethoxysilane (APTES) as a bridging agent. The surface morphology and element compositions of PIPD fiber before and after grafting were characterized, and the effect of such treatment on the mechanical properties was also evaluated. The IFSS of the PIPD-Ti 3 C 2 (OH) 2 was highly increased by 61.54% because of the significant improvement the fiber/epoxy interaction and surface wettability . Though the tensile strength (TS) was slightly decreased by only 5%. Furthermore, the experiment results showed a great enhancement of UV and hydrothermal aging resistance of the grafted fibers comparing with untreated ones by 33% and 25% respectively.
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高影响因子
Nanoscale Horizons
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2018
·Vol. 4
·期 2
·452-456
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IF 9.391
Yong Zhang,Wenxin Xu,Xiaojie Xu,Wei Yang,Siyuan Li,Jiaxin Chen,Xiaosheng Fang
It has always been a challenge to prepare self-powered ultraviolet photodetectors (UV PDs) utilizing a green, facile and low-cost method. Here, we provide such an approach for fabricating self-powered photodetectors based on Te nanowire/TiO2 nanoparticle (NP) and Te nanowire/ZnO nanoparticle (NP) heterojunctions. It is noteworthy that such devices were prepared via simply brushing non-toxic solution-processed Te nanowires and commercial TiO2 and ZnO nanoparticles onto paper. The as-obtained UV PDs can work under zero bias due to photovoltaic effects from the Te/TiO2 and Te/ZnO heterojunctions. This study not only presents high-performance UV PDs, but also provides a general and effective method for developing environmentally-friendly and energy-efficient optoelectronic devices for practical applications. The concept of employing daily-use brushes and recyclable paper provides a facile way to fabricate green low-cost PDs.
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高影响因子
ACS Applied Nano Materials
·
2024
·
IF 5.3
Renjie Jin,Jinsong Liu,Shiwei Chen,Hongde Wang,Changsheng Niu,Xuehua Zhang,Chao Wu,Haizheng Hu,Kai Chen,Daoyou Guo,Shunli Wang
Solar-blind ultraviolet (UV) photodetectors play a critical role in ultraviolet communication and monitoring, effectively reducing false alarm rates and improving the accuracy of detection systems across various settings, which has garnered significant attention. Due to its exceptional solar-blind photon absorption coefficient, extremely stable structure, and ultrawide bandgap (4.5–4.9 eV), Ga2O3 has recently been identified as a desirable material for solar-blind UV photodetectors. Heterojunctions can separate photogenerated electron–hole pairs and their absorption edges can be controlled by selecting semiconductors with appropriate bandgaps, making them an important technology for light detection. In this work, a self-powered solar-blind UV photodetector has been fabricated using a mechanically separated β-Ga2O3/Lu2O3 core–shell microwire heterostructure. Our device demonstrates excellent solar-blind UV discriminability with self-powered photodetection, the device exhibits a responsivity of 38.8 mA/W, a detectivity of 1.22 × 1012 Jones, a switching ratio of 1.43 × 103, and a decay rate under UV irradiation of 62 ms, benefiting from both photovoltaic and photoconductive effects. Due to the high dielectric constant of Lu2O3 thin films at the nanoscale, enables more effective modulation of internal electric fields within heterojunction structures, thereby enhancing the response speed and sensitivity of photodetectors. The application of self-powered photodetectors in solar-blind communication systems has achieved promising results, which provides a viable strategy for Ga2O3-based high-performance self-powered photodetectors.
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高影响因子
ADVANCED FUNCTIONAL MATERIALS
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2026
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IF 19.9
Xiaolong Huang,Lei Zhang,Yilin Ma,Tianyu Lan,Chuyin Shao,Weixiang Sun,Taolin Sun,Zhen Tong,Tao Wang
Spectrally selective transmission of solar radiation is vital to balance energy efficiency, visual comfort, and UV protection in the human environment. Thermochromic materials regulate solar spectral transmission through temperature-dependent optical transitions, but their single thermal responsiveness limits precise spectral control, leading to inefficient utilization of light and insufficient UV protection. To overcome these limitations, we implement a dual-responsive strategy that synergizes photochromic and thermochromic mechanisms by developing a nanocomposite organohydrogel integrating photochromic perovskite nanosheets and a thermochromic poly( N -isopropylacrylamide-co-acrylamide) network in a water-glycerol matrix, forming a photo/thermal dual-responsive smart window (PTSW). Acrylamide and glycerol synergistically enhance dimensional stability and environmental tolerance, ensuring reliable performance under diverse climatic conditions. The perovskite nanosheets efficiently absorb and scatter UV light, blocking UV transmittance greatly while maintaining high visible transparency. The PTSW with a 1 mm-thick gel layer exhibits pronounced solar modulation, reducing indoor temperature by up to 17.3°C relative to double glazing in outdoor experiments, and achieves ∼20% simulated annual energy savings in high-irradiance regions. Climatic wind-tunnel experiments further confirm the PTSW's excellent weather adaptability and cycling durability. This dual-responsive smart window establishes a general pathway for intelligent selective solar-spectrum management, UV protection, and sustainable thermal regulation toward carbon-neutral building technologies.
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产品关联
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高影响因子
PROGRESS IN ORGANIC COATINGS
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2026
·
IF 7.9
Dan Qiu,Yuan Yuan,Tianyi Xu,Hui Liu,Quanqin Peng,Bin Wang,Yuewen Huang
Epoxy-functional silicone resins are promising reactive modifiers for transparent hard coatings. However, their synthesis often faces challenges such as ring-opening of epoxy groups under acidic conditions or insufficient siloxane condensation. In this work, a weak base-catalyzed hydrolytic condensation method was developed to synthesize a series of soluble epoxy-functional MDQ and MTQ silicone resins, containing M/D/Q and M/T/Q siloxane units, respectively, with tunable molecular weight. K 2 CO 3 was used as a mild catalyst to promote Si-O-Si network formation while preserving epoxy functionalities. The obtained silicone resins were introduced into a tetra-armed epoxy-functionalized phenylsiloxane (BBE-Ep 4 Si, BE) to fabricate transparent coatings through epoxy-anhydride curing. The incorporation of epoxy-functional silicone resins significantly improved the thermal stability and surface hardness of the coatings. The optimized coating exhibited the best overall performance, with a pencil hardness of 8H, an adhesion grade of 5B, a transmittance of 95.8% at 550 nm, a low surface energy of 27.92 mN m −1 , and good anti-contamination and easy-cleaning properties. After 96 h of UV aging, the coating still maintained high visible-light transmittance of 92.3% at 550 nm and good hydrophobicity with a water contact angle of 99.5°. The optimized coating shows potential as a transparent protective layer for next-generation optoelectronic devices, including foldable displays, touch panels, and cover windows.
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高影响因子
CRYSTAL GROWTH & DESIGN
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2026
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IF 3.6
Yujie Wei,Ying Lv
Single-phase white phosphors are highly desirable for achieving stable white light-emitting diodes (w-LEDs). In this work, a series of Ce3+-, Tb3+-, and Sm3+-doped as well as codoped Ca3LuAl3B4O15 (CLAB) phosphors were successfully synthesized, and white light was achieved by tuning relative doping concentrations. The phase structure, morphology, and optical properties were systematically investigated using X-ray diffraction (XRD), scanning electron microscopy (SEM), and photoluminescence spectroscopy. Energy transfer from the parity-allowed Ce3+ ions to the parity-forbidden Tb3+ and Sm3+ ions was confirmed through spectral analysis and comparison. Under 342 nm excitation, the optimized CLAB:1%Ce3+,2.5%Sm3+,10%Tb3+ phosphor exhibits warm-white-light emission originating from three activators. In addition, the phosphor retains 71% and 42% of its initial emission intensity at 450 and 600 K, respectively, demonstrating the good thermal stability of the phosphor. By combining the optimized CLAB:1%Ce3+,2.5%Sm3+,10%Tb3+ phosphor with a commercial 340 nm ultraviolet (UV) chip, a warm w-LED was fabricated, exhibiting CIE chromaticity coordinates of (0.3631, 0.3625), a correlated color temperature (CCT) of 4419 K, and a color rendering index (CRI) of 93. This study offers a newly designed single-phase white phosphor for high-quality warm w-LEDs.
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高影响因子
Materials Today Chemistry
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2026
·
IF 7.4
Yu-Ting Huang,Gui-Xiang Liu,Hui-Min Yuan,Rui Huang,Shuangquan Liao
Stimuli-responsive flsuorochromic smart elastomers have substantial potential for intelligent information storage, anticounterfeiting and encryption applications, and flexible actuation applications. However, traditional fluorochromic elastomers have inherent limitations, including poor reprocessability, limited mechanical properties, and low crosslinking efficiency. To address these issues, we designed an ultraviolet (UV)-responsive biobased elastomer using epoxidized natural rubber (ENR) as the matrix and 9-anthracenecarboxylic acid (9-ACA) as a green photo-crosslinking precursor and a reinforcing component, without the need for additional catalysts. Under 365 nm UV irradiation, the anthracene rings in 9-ACA underwent [4 + 4] photocycloaddition, forming a high-density crosslinked network. This process increased the crosslinking density to 1.37 × 10 −4 mol/cm 3 , and strain-induced crystallization further enhanced the mechanical properties, with tensile strength and fracture energy reaching 8.49 MPa and 11.48 kJ/m 2 , respectively. Conversely, 254 nm UV irradiation caused dimer de-crosslinking, enabling reversible regulation of fluorescence (quenched under 365 nm and recovered under 254 nm) and shape-memory function. Compared with traditional diacid-crosslinked systems, the proposed UV-induced system demonstrated higher crosslinking efficiency and superior reprocessability (76.27% strength retention). Furthermore, information encryption simulations revealed reversible “hiding–reading–erasing” cycles. This study provides a feasible strategy for developing high-performance, sustainable smart elastomers, consistent with green material development goals.
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高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
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2026
·
IF 3.1
Qiaozhang She,Zhendong Hu,Qixi Zheng,Fanghui Lei,Yuxin Wu
The limited compatibility between lignin and hydrophilic polysaccharide–polymer matrices restricts the development of high-performance bio-based packaging films. Here, we propose a green strategy that incorporates solvent-fractionated alkaline lignin (F-AL) into konjac glucomannan (KGM)/polyvinyl alcohol (PVA) films through citric acid (CA)-mediated ester crosslinking. Fractionation using acetone/water enriched phenolic hydroxyl groups and reduced molecular weight, thereby enhancing lignin reactivity toward CA and improving its dispersion in the PVA/KGM matrix. FTIR and SEM analyses confirmed the formation of a denser crosslinked network and markedly improved interfacial compatibility. As a result, the optimized PKFAL6 film exhibited high tensile strength (40.27 MPa), a 54.8% reduction in water vapor permeability, and a low swelling ratio (112.47%). The enriched phenolic structure of F-AL imparted strong antioxidant activity (up to 85.6% DPPH scavenging) and excellent UV-blocking ability (91.4% UVB; 58.9% UVA). Soil-burial tests revealed a two-stage degradation behavior, with slower early-stage mass loss due to antimicrobial effects and accelerated degradation after network cleavage. These results demonstrate that lignin fractionation is an effective strategy for creating sustainable films with enhanced soil degradation performance and improved functional properties for active packaging.
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高影响因子
POLYMER DEGRADATION AND STABILITY
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2026
·
IF 8.1
Fang-Ling Li,Wan-Meng Song,Bo Jiang,Ying-Jun Xu,Bin Zhao,Yun Liu
The modified viscose fibers show durable flame retardancy. • They also exhibit significantly enhanced ultraviolet resistance. • A phosphorus-nitrogen synergy promotes char formation. • The modification retains mechanical strength and whiteness. • This offers a cleaner route for multifunctional fibers. Viscose fiber is inherently highly flammable, and conventional post-finishing flame-retardant treatments often suffer from limited washing durability. To overcome these drawbacks, a triazole-containing cyclotriphosphazene derivative (HTDA) was synthesized and incorporated to fabricate flame-retardant viscose fiber as a multifunctional additive via blend wet spinning. This incorporation does not impair spinnability, and the resulting fibers simultaneously achieve durable flame retardancy and markedly enhanced ultraviolet resistance. At an HTDA loading of 20 wt.%, the limiting oxygen index reaches 30.4% and remains as high as 30.3% even after 50 laundering cycles, evidencing excellent wash durability. Cone calorimetry further confirms outstanding fire safety: compared with neat viscose fiber, the modified fiber shows a 42% reduction in peak heat release rate and a 39% decrease in total heat release. In addition, the ultraviolet protection factor significantly increases from 11 to 68, while the retention of single-fiber breaking strength exceeds 80%, meeting the basic requirements for textile applications. Mechanistic investigations reveal that HTDA acts through a phosphorus–nitrogen synergistic pathway in both the condensed and gaseous phases, promoting char formation and effectively suppressing combustion. Overall, this work provides a sulfur-free, post-finishing-free strategy for producing multifunctional high-performance viscose fibers with durable flame retardancy and enhanced UV protection.
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高影响因子
PROGRESS IN ORGANIC COATINGS
·
2026
·
IF 7.9
Yiming Liu,Guangyue Zou,Peihai Chen,Guangjun Pan,Chunhong Zhang,Lijia Liu,Yawen Liu,Chao Wang
UV-curable SAP coating achieves 98.2% scratch healing at 25 °C within 4 h. • SAP-C exhibited transmittance > 91%, haze < 1%, Grade 0 adhesion, and hardness 2H. • SAP-C combines flexible chains, dynamic disulfide bonds, and dense hydrogen bonds. • Both Dynamic bonds and flexible chains are essential for RT self-healing of coating. • SAP-C with a low T g is the dominant factor for its RT self-healing. The rapid development of flexible optoelectronic devices has increased demand for protective coatings that combine optical transparency, mechanical durability, strong substrate adhesion, and autonomous self-healing at room temperature (RT). To address this challenge, we designed a flexible polypropylene glycol-based dual-dynamic oligomer (SAP) containing reversible disulfide bonds and hydrogen-bonding units, together with three structurally distinct control networks (BDP-C, SAT-C, and SPIH-C) that served as boundary-condition probes to systematically vary dynamic bond exchange, crosslinking density, and segmental rigidity. SAP-C exhibited a low glass transition temperature (T g = 6.68 °C), a characteristic stress-relaxation time (τ) of 29.4 s at 25 °C, and a scratch-closure efficiency of 98.2% within 4 h at RT. Comparative results showed that rapid local network relaxation alone does not guarantee macroscopic self-healing: although SPIH-C exhibited a shorter τ than SAP-C, its scratch-healing performance was poorer, whereas the excessive crosslinking density of SAT-C strongly suppressed network rearrangement and healing. These findings distinguish local stress dissipation from long-range interfacial reconstruction and indicate that efficient RT self-healing requires dynamic exchange sites coupled with sufficient segmental mobility to enable effective re-contact and reconstruction of the damaged interfaces. Meanwhile, SAP-C achieved an optical transmittance ≥ 91%, a haze ≤ 1%, Grade 0 adhesion to both PET and glass, 2H pencil hardness, and a Taber abrasion loss of only 12.1 mg after 500 cycles. This study establishes a structure–network rearrangement–macroscopic healing relationship in UV-curable coatings, providing a mechanistic basis for designing transparent protective coatings with autonomous RT self-healing capability. Download: Download high-res image (240KB) Download: Download full-size image
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危险品化学品经营许可证（带存储）