JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION
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2020
·Vol. 35
·期 2
·327-334
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IF 0.64
Wang Haiping,Gui Pengce,Zhu Yangqian,Hu Siqian
A novel type of microencapsulated phase change materials (microPCMs) based on 1-tetradecanol (TD) core and silver-coated poly (melamine-urea-formaldehyde) (MUF) shell was successfully synthesized by in situ polymerization method followed by silver reduction. Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy with energy dispersive X-ray spectrometry (SEM/EDS), thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) were used to characterize the chemical structure, morphology and thermal properties of the as-prepared silver-coated microPCMs. FTIR analysis confirmed the successful encapsulation of TD with MUF wall materials. The SEM and EDS results indicated that the prepared silver-coated MUF microPCMs exhibited uniform spherical shape with a perfect silver outer layer. From XRD analysis, the Ag metal dispersed on the surface of microcapsules presented the form of elementary substance. The deposition weight of silver particles on the microcapsule surface increased with increasing the amount of silver nitrate, as indicated by EDS tests. The DSC results indicated that the melting temperature and the melting latent heat of microPCMs modified with 0.7 g of silver nitrate in 150 mL aqueous solution were 39.2 °C and 126.6 J·g −1 , respectively. Supercooling of the microPCMs coated with silver particles was effectively suppressed, compared with that of microPCMs without Ag. Thus, the encapsulation of TD with silver-coated MUF shell developed by this work can be an effective method to prepare the microPCMs with enhanced thermal transfer performance and phase change properties.
研究领域:
材料科学
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化学工程
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产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2021
·Vol. 138
·期 21
·50465
·
IF 3.125
Shuoshuo Wang,Liqiang Yi,Yini Fang,Lina Wang,Juming Yao,Jaromir Marek,Ming Zhang
Recent years, phase change materials (PCMs) with potential to store and transform energy have attracted broad attention, especially in the field of thermal energy storage. However, the instability and leak proneness of PCMs limit their universal application. In this paper, core-shell fibers with 1-tetradecanol (TD) as core and poly(vinylidene fluoride) (PVDF) as shell were prepared via melt coaxial electrospinning method, and for improvement, the dye composed of crystal violet lactone (CVL) and bisphenol A (BPA) was added to the core to endow the fiber the function of reversible thermochromism. During the preparation process, it was found that the addition of NaCl could regulate the fiber morphology and strength its mechanical property. By adjusting the concentration of shell solution and the flow rate of core solution, the high-strength reversible thermochromic fibers were produced when polymer concentration was 24 wt% with a core feed rate of 0.4 ml/h. The latent heat of these fibers is up to 88.71 J/g. Besides, its color can change from blue to white when heated, and the transition temperature is around 38°C. And 100 thermal cycle tests of the fiber showed its strong thermal stability and thermochromic property.
研究领域:
材料科学
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能源存储
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纺织工程
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DOI
高影响因子
Materials Today Communications
·
2024
·
IF 3.7
Yinghao Xu,Yaoqi Huang,Linfeng Li,Muyang Gu,Yuanyuan Li,Xiaomin Cheng
Phase change materials limit practical applications due to their relatively weak thermal conductivity and leakage resistance. The present work focuses on the development of a novel composite PCM (CA-TD/ZnO/EG), which was prepared by adsorbing a binary mixture of n-decanoic acid-tetradecanol (CA-TD) based on the combination of expanded graphite (EG) and zinc oxide (ZnO) nanoparticles. A new support material, ZnO/EG, was assembled by depositing specially shaped ZnO onto the surface of an expanded graphite substrate using an atomic deposition method. In addition to maintaining the porous structure of EG and preventing the leakage of CA-TD, the ZnO/EG reduces the interfacial thermal resistance between the substrate and the PCM molecules, which leads to the maximisation of the thermal conductivity. The prepared CA-TD/ZnO/EG-10 composite has a phase transition temperature of 19.5 °C, a heat of 157.3 J/g, and a thermal conductivity of (6.131 W·m -1 ·K -1 ) improved by 351.7% compared to the CA-TD material. Its faster heat transfer rate is directly reflected in the infrared image, with a small enthalpy change of 1.2% during 200 cycles of heating-cooling, as well as some photothermal conversion capability. The results of this paper can provide prospects for the functional design, modification, and enhancement of composite PCM.
研究领域:
材料科学
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能源工程
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产品关联
DOI
高影响因子
MATERIALS LETTERS
·
2021
·
IF 3.423
Siyin Qin,Huabing Li,Chengzhi Hu
Microencapsulated phase-change materials (MEPCMs) possess promising application in storing energy and protecting environment of biomaterials. However, the MEPCMs have the difficulty of low encapsulation efficiency and irregular shape. In this study, biodegradable chitosan/gelatin co-emulsifier as composite shell was used to encapsulate n -tetradecanol through oil-in-water-in-oil (O/W/O) method, and then crosslinked with glutaraldehyde (GTA). The results reveal that the latent heat and encapsulation efficiency of the microcapsules reach 146.88 J g −1 and 70.94%, respectively. Besides, the prepared microcapsules exhibit great thermal stability and thermal cycling reliability during the phase change process.
研究领域:
材料科学
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能量存储
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环境保护
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生物降解材料
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产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
·
2023
·Vol. 24
·期 10
·9055
·
IF 5.6
Qianli Li,Yi Hou,Pinyin Cao,Ruiye Bi,Songsong Zhu
The treatments generally employed for temporomandibular joint osteoarthritis (TMJOA) involve physical therapy and chemotherapy, etc., whose therapeutic efficacies are impaired by the side effects and suboptimal stimulus responsiveness. Although the intra-articular drug delivery system (DDS) has shown effectiveness in addressing osteoarthritis, there is currently little reported research regarding the use of stimuli-responsive DDS in managing TMJOA. Herein, we prepared a novel near-infrared (NIR) light-sensitive DDS (DS-TD/MPDA) by using mesoporous polydopamine nanospheres (MPDA) as NIR responders and drug carriers; diclofenac sodium (DS) as the anti-inflammatory medication; and 1-tetradecanol (TD) with a phase-inversion temperature of 39 °C as the drug administrator. Upon exposure to 808 nm NIR laser, DS-TD/MPDA could raise the temperature up to the melting point of TD through photothermal conversion, and intelligently trigger DS release. The resultant nanospheres exhibited an excellent photothermal effect and effectively controlled the release of DS through laser irradiation to accommodate the multifunctional therapeutic effect. More importantly, the biological evaluation of DS-TD/MPDA for TMJOA treatment was also performed for the first time. The experiments’ results demonstrated that DS-TD/MPDA displayed a good biocompatibility in vitro and in vivo during metabolism. After injection into the TMJ of rats afflicted with TMJOA induced by unilateral anterior crossbite for 14 days, DS-TD/MPDA could alleviate the deterioration of TMJ cartilage, thus ameliorating osteoarthritis. Therefore, DS-TD/MPDA could be a promising candidate for photothermal-chemotherapy for TMJOA.Keywords:mesoporous polydopamine;drug release system;NIR laser-responsive;controlled release;temporomandibular joint osteoarthritis
研究领域:
药学
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生物医学工程
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骨科
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材料科学
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产品关联
DOI
PubMed
高影响因子
Journal of Energy Storage
·
2025
·
IF 9.8
Haiquan Zhang,Susu He,Bozhou Cao,Qiadong Yao,Fuge Wang,Ning Wang
While significant progress has been made in thermal management materials for conventional environments, the development of phase change materials (PCMs) with robust adaptability for complex operational scenarios remains nascent. This study presents an asymmetric temperature-responsive PCM system engineered through the integration of a poly(butyl methacrylate) (PBMA) polymer network, tetradecanol (TD) phase-change component, and carbon nanotubes (CNTs). Due to terminal hydroxyl groups of TD preferentially crosslink with PBMA's side chains, the composite with M PBMA / M CNTs mass ratio of 14.4:1 enables a temperature-dependent transition from an elastoplastic state at 30 °C to an elastic state at 70 °C (fracture strain of 393 % and fracture stress of 376 kPa). The PBMA/TD/CNTs composite achieves a Δ H value of 98.2 J g −1 , corresponding to 1.046 W m −1 K −1 of the thermal conductivity. Notably, the CNTs dispersed within the melted composite undergo electric field-induced directional alignment, resulting in an increase in its electrical conductivity from 5.0 × 10 −4 S m −1 at 45 °C to 0.2 S m −1 at 125 °C. This asymmetric thermo-responsive mechanism confers the composite with distinctive thermal regulation properties: rapid heat absorption coupled with controlled heat dissipation.
研究领域:
材料科学
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高分子科学
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纳米技术
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热工学
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智能材料
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2024
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IF 13.3
Lu Liu,Yuang Zhang,Yanan Wu,Shufen Zhang,Bingtao Tang
Phase change materials (PCMs) have gained significant interest in personal thermal management technologies owing to high latent heat capacity and isothermal phase transitions. However, achieving simultaneous thermal and wearing comfort remains a formidable challenge due to their solid rigidity and liquid leakage. In this work, a polyetheramine-based conductive phase change film was developed by introducing ion transport network and tetradecanol as phase change components encapsulated within the skeleton network. The film possesses adjustable heat storage density (79.5–163.4 J/g) and exceptional flexibility at room temperature. On the basis of desirable thermal regulation ability and ideal wearability, the film was successfully applied in the personal thermal management field and effectively regulated the human body temperature. Moreover, the film realized human motion sensing and object tactile recognition in real time with construction of the inner ion transport channels. This successful exploration provides a promising and scalable route towards intelligent wearable thermal management.
研究领域:
材料科学
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热工程
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可穿戴技术
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传感器与执行器
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产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2025
·
IF 2.8
Ying Lei,Jianyang Zhang,Haoquan Zhuang,Tao Yin,Pengcheng Lin
High-power consumption causes excessive heat of 5G devices, compromising performance and lifespan. Phase change materials (PCMs) enable passive, constant-temperature thermal management but suffer from leakage and low thermal conductivity, limiting their application. In this work, a strategy of heat transfer enhancement in thermal energy storage gels by size engineering of boron nitride (BN) towards 5G thermal management is proposed. Specifically, tetradecanol (TD), whose thermal storage temperature is close to the thermal management temperature of electronic devices, is selected as the working medium. Based on the van der Waals force and hydrogen bond between TD and styrene-ethylene-butylene-styrene (SEBS), TD@SEBS@BN gels (TSBGs) with suppressed leakage are formed. The enthalpy of the TSBG is as high as 128.12 J g −1 , stably storing heat at around 35.84°C. The synergistic enhancement of heat transfer of TSBGs by large/small-sized BN is studied. An efficient heat transfer network has been established by coupling large-sized BN (average 30 μm) and small-sized BN (average 1 μm). The thermal conductivity of TSBG is increased from 0.304 W m −1 K −1 to a high value of 0.966 W m −1 K −1 (an increase of 317.76%). The efficient thermal management of 5G electronic components is finally realized using TSBGs.
研究领域:
热管理
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材料科学
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电子器件
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纳米技术
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传热
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产品关联
DOI
高影响因子
EUROPEAN POLYMER JOURNAL
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2024
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IF 5.8
Yanan Zhang,Yanling Song,Bijia Wang,Zhiping Mao,Xiaofeng Sui,Liduo Rong,Meixin Zhao,Xueling Feng
Controlled drug release has sparked much attention in the field of drug delivery by prolonging the duration of drug effectiveness and reducing drug toxicity. However, the development of controlled-release drug delivery systems remains a significant challenge, primarily due to inadequate drug compatibility, low biocompatibility, and low response sensitivity of the drug carriers. Herein, an innovative strategy for fabricating multifunctional organohydrogels as drug carrier systems is designed. 1-Tetradecanol/water emulsions, stabilized by cellulose acetoacetate (CAA), are initially prepared. The organohydrogels are fabricated by the ternary enzyme-mediated polymerization of the monomer - containing emulsion. The amphipathy of CAA ensures the stability of emulsions during polymerization, and CAA participates in polymerization as an initiator. Through the reversible crystallization-melting transition of 1-tetradecanol, the drug can be encapsulated in/released from the organohydrogel. Moreover, 1-tetradecanol enhances the bioavailability of water-insoluble drugs without any additional cosolvent. Therefore, biofriendly organohydrogels can serve as ideal dressings with adjustable mechanical properties, effective temperature regulation, and temperature-triggered drug release ability.
研究领域:
材料科学
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药学
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生物医学工程
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产品关联
DOI
高影响因子
Journal of Materials Chemistry B
·
2017
·Vol. 5
·期 27
·5464-5472
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IF 4.543
Zhipeng Zhang,Yun Wang,Shaohui Xu,Yanna Yu,Abid Hussain,Yuanyuan Shen,Shengrong Guo
The design of an ideal drug delivery system with targeted recognition and minimized premature release, especially controlled and specific release that is triggered by endogenous and exogenous dual-stimuli, is a great challenge. A biotin receptor-targeted, near-infrared (NIR) irradiation and redox responsive nano-system has now been developed. The nano-system was constructed by filling the interior of Au nanocages with doxorubicin as a chemotherapy agent trapped in tetradecanol, followed by surface conjugation of biotinylated poly(ethylene glycol)–poly(curcumin-dithiodipropionic acid) (Biotin–PEG–PCDA) as a macromolecular chemosensitizer. Once the nano-system had been delivered into MCF-7/ADR cells by biotin receptor mediated recognition and endocytosis, drug release was triggered by degradation of PCDA via a glutathione induced redox reaction in combination with a solid–liquid change of tetradecanol by photothermal effects under NIR irradiation, which could minimize premature drug release and then maximize the therapeutic efficacy.
研究领域:
癌症治疗
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药物递送
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纳米技术
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材料科学
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生物医学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
MATERIALS LETTERS
·
2020
·
IF 3.204
Bichuan Chi,Yan Yao,Suping Cui,Xiaodong Jin
In this work, the form-stable phase change material (PCM) was prepared by absorbing tetradecanol (TD) into expanded graphite (EG). Then, the obtained TD/EG was coated with graphene oxide (GO) through electrostatic self-assembly to prepare a novel composite PCM (TD/EG-GO). The morphology, phase change and thermal properties of TD/EG-GO were fully discussed. The DSC analysis shows that the TD/EG-GO composite melts at 35.2 °C with latent heat value of 189.5 J/g and freezes at 34.9 °C with latent heat value of 187.9 J/g. The thermal cycling test results reveal that the latent heat of TD/EG-GO composite decrease by less than 1% after 500 thermal cycles, indicating that the structure of GO-coated EG efficiently prevents the leakage of TD. The thermal stability and thermal conductivity of TD/EG-GO composite are also improved compared with that of uncoated TD/EG, demonstrating the multiple benefits of surface coating of GO.
研究领域:
材料科学
·
热能工程
·
能量存储
✓ 已验证
DOI
高影响因子
Journal of Energy Storage
·
2024
·
IF 8.9
Xinyu Zhai,Xudong Xu,Zide Wu,Gai Zhang,Juan Li,Xiaotian Peng,Hao Peng
This study aimed to synthesize a reversible thermochromic membrane (TC-membrane) using nano-encapsulated phase change materials (NEPCMs) for medical dressings, which possess both body temperature monitoring and regulation functionality. N-Octadecane (C 18 ) was chosen as the core material in NEPCMs to facilitate heat absorption. Crystal violet lactone (CVL) Bisphenol A (BPA) and tetradecanol (C 14 H 29 OH) were employed as the thermochromic compound. In addition, polyvinyl alcohol (PVA) and water-based polyurethane (WPU) were used to prepare TC-membrane, and hydroxypropyl methylcellulose (HPC) was used as a modified material to enhance the mechanical properties of TC-membrane. Characterization results revealed that the most optimal color-changing performance was achieved with a mass ratio of CVL to BPA to C 14 H 29 OH at 1:3:50. The TC-membrane exhibited a phase transition enthalpy of 22.6 J/g and 31.9 J/g in solidification and melting progress, respectively, demonstrating excellent heat storage capabilities. The addition of HPC enhanced the mechanical properties, resulting in a 37.1 % increase in tensile strength and a 90.8 % increase in elongation at break. Furthermore, the TC-membrane presented rapid responses to temperature variations, with color changes and recoveries occurring within 1 min. This study demonstrated that NEPCMs have a promising potential future in applications related to wearable temperature sensors, energy storage and thermal regulation applications.
研究领域:
材料科学
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纳米技术
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医疗器械
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热管理
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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）