ACS Applied Polymer Materials
·
2026
·
IF 5.2
Shengyu Chen,Chao Shi,Xinyu Tan,Xiaobo Chen,Xiongbo Yang,Yulong Qiao,Guiguang Qi,Yonghua Zhang,Sang Ba,Zhixue Ma
As cooling energy demand keeps rising, passive daytime radiative cooling (PDRC) is emerging as a strong alternative to conventional air-conditioning. It is imperative to ensure that the functionality of radiative cooling polymer films encompasses self-cleaning properties and UV durability to facilitate their extensive and long-term practical applications in outdoor settings subjected to prolonged sun exposure. Functional antiultraviolet radiative cooling films with the superhydrophobic characteristics of “rose petal effect” and “lotus effect” by regulating the mass of K2Ti6O13 (PT) fibers and SiO2 particles are prepared and studied in this work. The film of the lotus effect (LP film) displayed a maximum water contact angle (WCA) of 161° and a water sliding angle (WSA) of 6.3°, while the film of the rose petal effect (RP film) exhibited a similar WCA of 155° and an extremely large WSA exceeding 180°. The reflectivities of the RP film and LP film at 0.4–0.9 μm are 93.2 and 96.1%, respectively, while their corresponding emissivity values in the band of 8–13 μm are measured as 99.48 and 99.53%. Compared to the uncoated Al sheet, the RP film and LP film demonstrate a maximum temperature reduction of up to 11.9 and 12 °C, respectively, at an outdoor test. The most advantageous aspect is that the solar reflectance of the RP/LP film remained virtually unaltered even after undergoing 600 h of continuous UV exposure, demonstrating its exceptional ability to absorb high-energy UV photons and convert them into less harmful heat. This work provides a complete approach to boosting the outdoor performance of polymer-based PDRC materials by adding self-cleaning and UV durability.
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DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Shiqi Hong,Yongqiang Lan,Yanhong Zhang,Bingbing Fu,Ping Peng
Inspired by natural biomineralization, high-performance pervaporative desulfurization membranes were engineered through a one-step synthesis strategy. Cysteamine served as both an inducer and catalyst, steering the deposition of silica (SiO 2 ) onto graphene oxide (GO) nanosheets that were pre-dispersed in a polydimethylsiloxane (PDMS) matrix. The Fourier transform infrared spectroscopy and x-ray diffraction results demonstrated that in situ-formed SiO 2 was attached firmly onto the GO sheets. The scanning electron microscopy results showed that the GO/SiO 2 fillers were uniformly dispersed in the PDMS matrix. The incorporation of GO/SiO 2 within the lipophilic PDMS matrix markedly enhanced the desulfurization performance of the resultant biomineralized membranes. The fabricated membranes were evaluated for the separation of thiophene from an n -octane/thiophene mixture by pervaporation. It was demonstrated that the membrane displayed high selectivity towards thiophene. The sulfur enrichment factor reached a maximum of 6.30 for the biomineralized membrane containing 0.3 wt% GO, accompanied by a permeation flux of 6973 g m −2 h −1 in a 1312 ppm thiophene/ n -octane mixture at 303 K. The desulfurization performance of the biomineralized membranes maintained practically constant over 168 consecutive hours, displaying long-term stability. This facile one-step strategy offers a readily scalable route to fabricate high-performance pervaporative membranes for deep gasoline desulfurization.
研究领域:
材料科学
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化学工程
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膜技术
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环境修复
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石油炼制
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DOI
高影响因子
Nanomaterials
·
2019
·Vol. 9
·期 12
·1704
·
IF 4.034
Yu Ji,Yufeng Xing,Xuequan Li,Li-Hua Shao
A dual-stimuli responsive soft actuator based on the three-dimensional (3D) porous carbon nanotube (CNT) sponge and its composite with polydimethylsiloxane (PDMS) was developed, which can realize both electrothermal and electrochemical actuation. The bimorph actuator exhibited a bending curvature of 0.32 cm−1·W−1under electrothermal stimulation on land. The displacement of the electrochemical actuator could reach 4 mm under a 5 V applied voltage in liquid. The dual-responsive actuator has demonstrated the applications on multi-functional amphibious soft robots as a crawling robot like an inchworm, a gripper to grasp and transport the cargo and an underwater robot kicking a ball. Our study presents the versatility of the CNT sponge-based actuator, which can be used both on land and in water.
研究领域:
软体机器人
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智能材料
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纳米复合材料
·
电活性聚合物
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2020
·
IF 10.652
Gang Jian,Qingzhen Meng,Yong Jiao,Liang Feng,Hui Shao,Fengwei Wang,Fang Meng
Electrophoretic deposition is employed to deposit flower-like TiO 2 (F-TiO 2 ) particles onto stainless steel textiles to obtain a Fe@F-TiO 2 /PDMS hybrid textile as the negative tribo-material. The electrophoresis process enables adjustable deposit amounts and three-dimensional and uniform deposits of flower TiO 2 . The textile triboelectric nanogenerators (tTENGs) fabricated from the Fe@F-TiO 2 /PDMS hybrid textile working in conjunction with cotton and silk exhibit excellent performances. The tTENG generates a voltage of 120 V, a current of 25 μA and an output power of 0.85 W m −2 with the cotton and 110 V, 30 μA and 1.05 W m −2 with the silk. The flower-like TiO 2 is significant for the high performance of the tTENG, being attributed to the tailored surface and improved permittivity. Wearable tTENGs exhibit good durability after 8,000 cycles and power 58 light emitting diodes. By utilizing the worn tTENG, real-time biomechanical energy harvesting is realized; furthermore, a wireless communication via infrared rays is achieved, confirmed by the successfully receiving of the wireless signal and lighting up of the indicator LED. This work demonstrates high-performance hybrid textiles prepared by electrophoretic deposition and tTENGs for applications in wearable real-time energy harvesters and wireless communication units.
研究领域:
材料科学
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能源技术
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DOI
高影响因子
REACTIVE & FUNCTIONAL POLYMERS
·
2024
·
IF 4.5
Jianfu Wang,Yi Lin,Wei Bing,Huichao Jin,Jie Zhao,Limei Tian
Superhydrophobic materials can solve the problem of oil pollution in water resources. In this paper, superhydrophobic PDMS-SiO 2 with macro-micro-nano multi-level structures was prepared by impregnation method. The superhydrophobic PDMS-SiO 2 material has good physical and chemical stability, and retains its superhydrophobicity after sandpaper abrasion, tape peeling, water immersion, acid or alkali immersion, and high temperature baking. The superhydrophobic PDMS-SiO 2 material has a high oil-water separation efficiency, with the highest oil-water separation efficiency reaching more than 99%, and the oil-water separation efficiency of different oils all exceeding 96%. The preparation of superhydrophobic PDMS-SiO 2 material is simple, inexpensive and environmentally friendly, which can achieve fast and large-area preparation, with good engineering application prospects.
研究领域:
材料科学
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环境科学
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DOI
高影响因子
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
·
2021
·
IF 4.016
Xingyi Wu,Yijie Dai,Chen Fu,Xiaobo Zhu,Wenhua Gu,Daying Sun,Wen Wu,Xiaodong Huang,Zhongxiang Shen
Sheet resistance is one of the essential properties of thin films, and the change of it under different conditions is the basis of various sensor designs. However, the contact resistances between the thin-film materials and the metal electrodes can seriously affect the sensing accuracy. Due to various material properties, the contact resistances are usually difficult to be managed or reduced, and even nonlinear Schottky barriers can form in some cases. A modified four-terminal method is proposed to eliminate the impact of contact resistances through simple resistance measurements and algebraic calculations, which can be easily integrated into sensors and accurately measure the sheet resistances/resistivities of thin films of different materials under different conditions. The carbon black/polydimethylsiloxane (CB/PDMS) thin film is taken as an example for demonstration of the method. The applications for pressure-sensitive and temperature-sensitive resistance measurement are also demonstrated.
研究领域:
材料科学
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传感器技术
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DOI
高影响因子
NPG Asia Materials
·
2022
·Vol. 14
·期 1
·1-9
·
IF 10.761
Xiong Fangyihan,Zhang Liyun,Xu Lei,Zhao Huan,Lan Jianyang,Ji Chenhao,Chen Linfeng,Xia Fan
Directed transport of a small amount of water is a basic issue and has attracted extensive attention due to its importance in a wide range of applications, such as water collection, microfluidics, printing, bioanalysis, and microchemical reactions. Various strategies based on constructing a surface tension gradient or Laplace pressure gradient have been developed to realize directional water transport. Typically, electrostatic forces and magnetic fields are utilized to achieve high-speed water transport on open superhydrophobic surfaces. However, these methods suffer from water evaporation or contamination. Here, we report a magnetic superhydrophobic tubular PDMS actuator for directional water transport. The actuator deformed under an applied external magnetic field and actuated the water droplet to transport along the moving direction of the magnet. The water transport velocity reached 16.1 cm/s. In addition, as the inner surface of the actuator is superhydrophobic, the water droplet showed weak interactions with the surface and presented negligible mass loss during the transport process. The results of this work may inspire new design of actuators for directional water transport with high speeds.
研究领域:
材料科学
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流体力学
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生物工程
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DOI
高影响因子
RSC Advances
·
2018
·Vol. 8
·期 73
·41956-41965
·
IF 2.936
Jingxian Huang,Wenwei Huang,Yin Chen,Yu Shrike Zhang,Jinshuang Zhong,Yan Li,Jianhua Zhou
In this work, we present a novel class of uniform eccentric magnetic microcapsules based on polydimethylsiloxane (PDMS) for magnetic resonance imaging (MRI)-guided local injection and pH-regulated drug release. The microcapsules contained magnetic nanoparticles in their PDMS shells, which allowed them to be easily tracked by MRI during administration. Besides, they showed pH-dependent drug release profiles due to dissolution of the embedded magnetic nanoparticles in acidic solutions. Moreover, by tuning the mass fraction of the magnetic nanoparticles, we could further regulate the release rate of drug molecules from them. As a demonstration, we investigated the delivery of cis-platinum using the microcapsules through an in vitro cell test, which confirmed the pH-controlled release of the drug in phantom tissues. Our study suggests that this type of eccentric magnetic microcapsules could be simultaneously employed as a potential imaging contrast and a smart drug delivery system, holding great potential for guided local therapy.
研究领域:
生物医学工程
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材料科学
·
医学影像
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DOI
PubMed
高影响因子
POLYMER
·
2025
·
IF 4.5
Hongtao Shan,Jiaxin He,Xueting Cao,Yingying Yan,Jianjun Zhou,Hong Huo
Physical blending with elastomers is a promising approach to improve the mechanical performance of conjugated polymers (CPs) without reducing their electrical performance, which is essential for stretchable flexible electronic devices. However, the effects of the properties of elastomers on the mechanical and electrical performance of CP/elastomer blend films remain unclear. Here, a stretchable semiconductor composite is systematically investigated, which is achieved by blending the brittle poly [4-(4,4-dihexadecyl-4H-cyclopenta [1,2-b:5,4-b′]dithiophen-2-yl)-alt-[1,2,5]thia-diazolo [3,4-c] pyridine] (PCDTPT) semiconductor with the thermosetting elastomer poly (dimethylsiloxane) (PDMS) containing different cross-linker contents. The cross-linker content affects the curing process of PDMS, thereby influencing the morphology and vertical phase separation structure of the PCDTPT/PDMS blend films and ultimately affecting their performance. By carefully modulating the properties of PDMS, a considerable phase separation structure, along with a network of small-sized nanofibers exhibiting long conjugation lengths or high backbone planarization, was obtained, resulting in blend films with electrical conductivity and crack onset strain (COS) values that are 2.7 times and 12.3 times greater than those of pure PCDTPT, respectively. Our findings demonstrate that precise control of cross-linker content serves as an effective strategy for modulating doping efficiency and achieving optimal performance of PCDTPT/PDMS blends. This work emphasizes the importance of the properties of elastomers on the performance of CP/elastomer blend films and provides valuable insights into appropriate elastomer selection for stretchable semiconducting thin films that simultaneously possess excellent mechanical and electrical properties.
研究领域:
材料科学
·
电子工程
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DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2024
·
IF 8.1
Yan-Mei Zhang,Wen-Wen Xie,Xiao-Xue Hu,Xin-Ru Chen,Heng Mao,Li-Hao Xu,Xin-Yu Shi,Tao Wang,Ying-Nan Feng,Zhi-Ping Zhao
Bioethanol has garnered widespread attention as a potential substitute for traditional fossil fuels. Focusing on the treatment of bioethanol fermentation exhaust is crucial for optimizing bioethanol recovery and achieving carbon dioxide (CO 2 ) purification. This study successfully achieved the large-scale synthesis of zeolitic imidazolate framework-8 (LSZIF-8), which was then incorporated into polydimethylsiloxane (PDMS) to fabricate large-area ZIF-8/PDMS/PVDF mixed matrix membranes (MMMs) for bioethanol recovery from fermentation exhaust via vapor permeation (VP) processes. The ZIF-8/PDMS/PVDF MMMs exhibited a 1.5-time increase in ethanol permeability and selectivity improved by 1.7 times compared to the PDMS/PVDF membrane. The mass transport behavior of ethanol and CO 2 molecules within the membrane, as well as examining the interactions between different components was systematically explored. It delves into the disparities in separation performance between PDMS/PVDF membrane and ZIF-8/PDMS/PVDF MMMs with nitrogen (N 2 ), water vapor as the third component. Notably, high-quality LSZIF-8 crystals serves as a crucial source of raw materials for the continuous preparation of high-performance MMMs, addressing the limitation of traditional nanoparticle fillers in terms of scalability for production. This study paving new avenues for purifying fermentation exhaust and recovering bioethanol, while simultaneously present significant potential for industrial applications.
研究领域:
材料科学
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环境科学
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生物能源
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产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2023
·
IF 8.2
Wenwen Guo,Shun Chen,Fuwei Liang,Liping Jin,Chenpeng Ji,Ping Zhang,Bin Fei
Cellulosic aerogels (CNF) are considered naturally available thermal insulating materials as substitutes for conventional polymeric aerogels owing to their extensive sources, low density, low thermal conductivity , sustainability and biodegradability . However, cellulosic aerogels suffer from high flammability and hygroscopicity . In this work, a novel P/N-containing flame retardant (TPMPAT) was synthesized to modify cellulosic aerogels to improve their anti-flammability. TPMPAT/CNF aerogels were further modified by polydimethylsiloxane (PDMS) to enhance the water-proof characteristics. Although the addition of TPMPAT and/or PDMS slightly increased the density and thermal conductivity of the composite aerogels, those values were still comparable to the commercial polymeric aerogels. Compared with pure CNF aerogel, the cellulose aerogel modified by TPMPAT and/or PDMS had higher T -10% , T -50% and T max , which indicated that the modified cellulose aerogels have better thermal stability . TPMPAT modification made CNF aerogels highly hydrophilic, while TPMPAT/CNF aerogel modified by PDMS became a highly hydrophobic material with a water contact angle (WCA) of 142°. Pure CNF aerogel burned rapidly after ignition, showing a low limiting oxygen index (LOI) of 23.0% and no UL-94 grade. In contrast, both TPMPAT/CNF-30% and PDMS-TPMPAT/CNF-30% showed self-extinction behaviors with a UL-94 V-0 grade, implying high fire resistance. Combined with high anti-flammability and hydrophobicity , the ultra-light-weight cellulosic aerogels show great potential for thermal insulation applications.
研究领域:
材料科学
·
化学工程
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF ELECTRONIC MATERIALS
·
2025
·
IF 2.5
Chen Haodong,Wang Jinfei,Zhao Zichao,Lei Yucan,Shu Fan,Chen Quanfang
Porous structures such as the dielectric layer have been identified as an effective way to enhance the performance of capacitive tactile sensors and aerogels as three-dimensional structured materials with high porosity and excellent mechanical properties, which have been shown to have the potential to further improve the overall performance of capacitive sensors. However, the inherent low compressive modulus of elastic aerogels limits their functionality, especially when subjected to larger pressure ranges, posing a challenge for extending the working pressure range of aerogel-based sensors. In this work, we combined graphene oxide (GO) with cellulose nanofibers (CNF) and polydimethylsiloxane (PDMS) to form a composite aerogel as the dielectric layer in a capacitive tactile sensor, aiming to overcome the inherent shortcomings associated with conventional aerogels. The results demonstrated that the composite aerogels preserved high porosity and exhibited superior elastic properties to significantly enhance the overall performance of the tactile sensor. The sensor exhibits a sensitivity of up to 1.7 kPa −1 , within a working range of 80 kPa, together with a rapid response time of 46 ms and a relaxation time of 92 ms. Additionally, the sensor featured an ultra-low detection limit of 30 Pa and maintained excellent stability under continuous load cycles. The performance and the flexibility of the sensor fit well for tactile perception and wearable detection applications.
研究领域:
材料科学
·
传感器技术
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）