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Journal articles on the topic 'Thermal conductivity of polymers'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Petran, Anca, Teodora Radu, Monica Dan, and Alexandrina Nan. "Exploiting Enzyme in the Polymer Synthesis for a Remarkable Increase in Thermal Conductivity." International Journal of Molecular Sciences 24, no. 8 (2023): 7606. http://dx.doi.org/10.3390/ijms24087606.

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The interest in polymers with high thermal conductivity increased much because of their inherent properties such as low density, low cost, flexibility, and good chemical resistance. However, it is challenging to engineer plastics with good heat transfer characteristics, processability, and required strength. Improving the degree of the chain alignment and forming a continuous thermal conduction network is expected to enhance thermal conductivity. This research aimed to develop polymers with a high thermal conductivity that can be interesting for several applications. Two polymers, namely poly(

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2

IMDEA, Materials. "Insights into Thermal Conductivity at the MOF-Polymer Interface." ACS Applied Materials & Interfaces 16, no. 41 (2024): 56221–31. https://doi.org/10.1021/acsami.4c08522.

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Understanding the thermal conductivity in metal–organic framework (MOF)-polymer composites is crucial for optimizing their performance in applications involving heat transfer. In this work, several UiO66-polymer composites (where the polymer is either PEG, PVDF, PS, PIM-1, PP, or PMMA) are examined using molecular simulations. Our contribution highlights the interface’s impact on thermal conductivity, observing an overall increasing trend attributable to the synergistic effect of MOF enhancing polymer thermal conductivity. Flexible polymers such as PEG and PVDF exhibit increased co

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Liu, Yu-Rui, and Yan-Fei Xu. "Research progress of polymers with high thermal conductivity." Acta Physica Sinica 71, no. 2 (2022): 023601. http://dx.doi.org/10.7498/aps.71.20211876.

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<sec>Developing thermally conductive polymers is of fundamental interest and technological importance. Common polymers have low thermal conductivities on the order of 0.1 W·m<sup>–1</sup>·K<sup>–1</sup> and thus are regarded as thermal insulators. Compared with the traditional heat conductors (metals and ceramics), polymers have unparalleled combined properties such as light weight, corrosion resistance, electrical insulation and low cost. Turning polymer insulators into heat conductors will provide new opportunities for future thermal management applications. Pol

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4

Krivchikov, A. I., and O. A. Korolyuk. "Empirical universal approach to describing the thermal conductivity of amorphous polymers: Effects of pressure, radiation and the Meyer–Neldel rule." Low Temperature Physics 50, no. 4 (2024): 328–41. http://dx.doi.org/10.1063/10.0025299.

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In this study, we propose and validate a universal temperature-dependent model for characterizing the thermal conductivity of amorphous polymers over a wide temperature range. Our approach captures key features in the thermal conductivity data, including a plateau, an inflection point, and the subsequent increase and saturation with rising temperature. Importantly, this model proves effective not only for pristine amorphous polymers but also for polymers subjected to external influences. We investigate the temperature-dependent thermal conductivity of amorphous polymer materials under various

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5

Smith, Matthew K., Thomas L. Bougher, Kyriaki Kalaitzidou, and Baratunde A. Cola. "Melt-processed P3HT and PE Polymer Nanofiber Thermal Conductivity." MRS Advances 2, no. 58-59 (2017): 3619–26. http://dx.doi.org/10.1557/adv.2017.499.

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ABSTRACT Thermal management is a growing challenge for electronics packaging because of increased heat fluxes and device miniaturization. Thermal interface materials (TIMs) are used in electronic devices to transfer heat between two adjacent surfaces. TIMs need to exhibit high thermal conductivity and must be soft to minimize thermal contact resistance. Polymers, despite their relative softness, suffer from low thermal conductivity (∼0.2 W/m-K). To overcome this challenge, we infiltrate nanoporous anodic aluminum oxide (AAO) templates with molten polymer to fabricate large area arrays of verti

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6

Huang, Congliang, Xin Qian, and Ronggui Yang. "Thermal conductivity of polymers and polymer nanocomposites." Materials Science and Engineering: R: Reports 132 (October 2018): 1–22. http://dx.doi.org/10.1016/j.mser.2018.06.002.

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7

PIORKOWSKA, EWA, and ANDRZEJ GALESKI. "Thermal conductivity of polymers." Polimery 30, no. 04 (1985): 136–41. http://dx.doi.org/10.14314/polimery.1985.136.

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8

Nikolaeva, Е. А., A. N. Timofeev, and K. V. Mikhaylovskiy. "Methods for increasing the thermal conductivity of polymers and polymer composite materials." Informacionno-technologicheskij vestnik 15, no. 1 (2018): 156–68. http://dx.doi.org/10.21499/2409-1650-2018-1-156-168.

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This article summarizes data of research and development in the field of increasing the thermal conductivity of polymers and polymer composite materials by using high thermal conductivity particles and fibers.

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Ng, Serina, and Bjørn Petter Jelle. "Incorporation of Polymers into Calcined Clays as Improved Thermal Insulating Materials for Construction." Advances in Materials Science and Engineering 2017 (2017): 1–6. http://dx.doi.org/10.1155/2017/6478236.

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Calcined clay is a Type Q supplementary cementing material according to EN197-1:2000. It possesses lower thermal conductivity than cement. To further improve its thermal insulation property, polymer-calcined clay complexes (PCCs) were produced in a one-pot synthesis. Two contrasting polymers, polystyrene (PS) and polyethylene glycol (PEG), were employed. The hydrophilicity of the polymers influenced the thermal conductivity of PCC. Hydrophilic PEG entrapped more water molecules on clay layers than the hydrophobic PS, making PEG-PCC more thermally conducting than PS-PCC. Contaminants in calcine

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10

Wang, Fang, Ming-Ding Li, Jun Peng Ma, Xiao-Liang Wang, and Qun-Dong Shen. "Enhancing the thermal conductivity in electrocaloric polymers by structural orientation for collaborative thermal management." Applied Physics Letters 122, no. 14 (2023): 143904. http://dx.doi.org/10.1063/5.0144660.

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Endowing bulk electrocaloric polymers with excellent thermal conductivity is a superior solution to the high-efficient and precise management of tremendous heat from high-power-density electronic devices. Semi-crystalline polymer P(VDF-TrFE-CFE), i.e., poly(vinylidene fluoride-trifluoroethylene-chlorofluoroethylene), has a predominant amorphous phase of randomly entangled chains and abundant interface, leading to localized behavior in phonon heat conduction and thereby low thermal conductivity. To enhance the thermal transport performance, electrocaloric polymer films were mechanically stretch

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11

Jarosinski, Lukasz, Andrzej Rybak, Karolina Gaska, Grzegorz Kmita, Renata Porebska, and Czeslaw Kapusta. "Enhanced thermal conductivity of graphene nanoplatelets epoxy composites." Materials Science-Poland 35, no. 2 (2017): 382–89. http://dx.doi.org/10.1515/msp-2017-0028.

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Abstract Efficient heat dissipation from modern electronic devices is a key issue for their proper performance. An important role in the assembly of electronic devices is played by polymers, due to their simple application and easiness of processing. The thermal conductivity of pure polymers is relatively low and addition of thermally conductive particles into polymer matrix is the method to enhance the overall thermal conductivity of the composite. The aim of the presented work is to examine a possibility of increasing the thermal conductivity of the filled epoxy resin systems, applicable for

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12

Zhao, Weixian, and Run Hu. "Toward high-thermal-conductivity polymers." Matter 4, no. 12 (2021): 3799–801. http://dx.doi.org/10.1016/j.matt.2021.10.029.

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13

Eiermann, K. "Thermal conductivity of high polymers." Journal of Polymer Science Part C: Polymer Symposia 6, no. 1 (2007): 157–65. http://dx.doi.org/10.1002/polc.5070060118.

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14

Dong, Lan, Qing Xi, Dongsheng Chen, et al. "Dimensional crossover of heat conduction in amorphous polyimide nanofibers." National Science Review 5, no. 4 (2018): 500–506. http://dx.doi.org/10.1093/nsr/nwy004.

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ABSTRACT The mechanism of thermal conductivity in amorphous polymers, especially polymer fibers, is unclear in comparison with that in inorganic materials. Here, we report the observation of a crossover of heat conduction behavior from three dimensions to quasi-one dimension in polyimide nanofibers at a given temperature. A theoretical model based on the random walk theory has been proposed to quantitatively describe the interplay between the inter-chain hopping and the intra-chain hopping in nanofibers. This model explains well the diameter dependence of thermal conductivity and also speculat

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15

Aryal, Anil, Adelaide Bradicich, Ethan T. Iverson, et al. "Thermal conductivity of multilayer polymer-nanocomposite thin films." Journal of Applied Physics 132, no. 19 (2022): 195104. http://dx.doi.org/10.1063/5.0102203.

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The development of electrical insulators that are thermally conducting is critical for thermal management applications in many advanced electronics and electrical devices. Here, we synthesized polymer nanocomposite (PNC) films composed of polymers [polyethylenimine, poly(vinylamine), poly(acrylic acid), and poly(ethylene oxide)] and dielectric fillers (montmorillonite clay and hexagonal boron nitride) by layer-by-layer technique. The cross-plane thermal conductivity [Formula: see text] of the film was measured by the 3ω method. The effect of various factors such as film growth, filler type, fi

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Kwon, Yeon-Ju, Jung-Bin Park, Young-Pyo Jeon, Jin-Yong Hong, Ho-Seok Park, and Jea-Uk Lee. "A Review of Polymer Composites Based on Carbon Fillers for Thermal Management Applications: Design, Preparation, and Properties." Polymers 13, no. 8 (2021): 1312. http://dx.doi.org/10.3390/polym13081312.

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With the development of microelectronic devices having miniaturized and integrated electronic components, an efficient thermal management system with lightweight materials, which have outstanding thermal conductivity and processability, is becoming increasingly important. Recently, the use of polymer-based thermal management systems has attracted much interest due to the intrinsic excellent properties of the polymer, such as the high flexibility, low cost, electrical insulation, and excellent processability. However, most polymers possess low thermal conductivity, which limits the thermal mana

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17

Liu, Jian, David Cheng, Wang Pan, Khin Oo, Ty-Liyiah McCrimmon, and Shuang Bai. "Design and Fabrication of Heat Exchangers Using Thermally Conductive Polymer Composite." Applied Mechanics 6, no. 2 (2025): 38. https://doi.org/10.3390/applmech6020038.

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Polymer heat exchangers (HXs) are lightweight and cost-effective due to the affordability of raw polymer materials. However, the inherently low thermal conductivity (TC) of polymers limits their application in HXs. To enhance thermal conductivity polymer composites, two types of diamond powders, with particle sizes of 0.25 µm and 16.7 µm, were used as fillers, while Acrylonitrile Butadiene Styrene (ABS) served as the matrix. Composite polymer samples were fabricated, and their density and thermal conductivity were tested and compared. The results indicate that fillers with larger particle size

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18

Nazarychev, Victor M., and Sergey V. Lyulin. "The Effect of Mechanical Elongation on the Thermal Conductivity of Amorphous and Semicrystalline Thermoplastic Polyimides: Atomistic Simulations." Polymers 15, no. 13 (2023): 2926. http://dx.doi.org/10.3390/polym15132926.

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Over the past few decades, the enhancement of polymer thermal conductivity has attracted considerable attention in the scientific community due to its potential for the development of new thermal interface materials (TIM) for both electronic and electrical devices. The mechanical elongation of polymers may be considered as an appropriate tool for the improvement of heat transport through polymers without the necessary addition of nanofillers. Polyimides (PIs) in particular have some of the best thermal, dielectric, and mechanical properties, as well as radiation and chemical resistance. They c

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19

Morak, Matthias, Philipp Marx, Mario Gschwandl, Peter Filipp Fuchs, Martin Pfost, and Frank Wiesbrock. "Heat Dissipation in Epoxy/Amine-Based Gradient Composites with Alumina Particles: A Critical Evaluation of Thermal Conductivity Measurements." Polymers 10, no. 10 (2018): 1131. http://dx.doi.org/10.3390/polym10101131.

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Abstract: For the design of the next generation of microelectronic packages, thermal management is one of the key aspects and must be met by the development of polymers with enhanced thermal conductivity. While all polymer classes show a very low thermal conductivity, this shortcoming can be compensated for by the addition of fillers, yielding polymer-based composite materials with high thermal conductivity. The inorganic fillers, however, are often available only in submicron- and micron-scaled dimensions and, consequently, can sediment during the curing reaction of the polymer matrix. In thi

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20

Zhang, Bo, Yunmin Liang, Biwei Liu, Wei Liu, and Zhichun Liu. "Enhancing the Thermo-Mechanical Property of Polymer by Weaving and Mixing High Length–Diameter Ratio Filler." Polymers 12, no. 6 (2020): 1255. http://dx.doi.org/10.3390/polym12061255.

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Improving thermo-mechanical characteristics of polymers can efficiently promote their applications in heat exchangers and thermal management. However, a feasible way to enhance the thermo-mechanical property of bulk polymers at low filler content still remains to be explored. Here, we propose mixing high length-diameter ratio filler such as carbon nanotube (CNT), boron nitride (BN) nanotube, and copper (Cu) nanowire, in the woven polymer matrix to meet the purpose. Through molecular dynamics (MD) simulation, the thermal properties of three woven polymers including woven polyethylene (PE), wove

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21

S. Zaki, Noor, and Tawfeeq W. Salih. "THE EFFECT OF CRYSTALLINITY ON THE THERMAL CONDUCTIVITY OF POLYMERS." Journal of Engineering and Sustainable Development 25, Special (2021): 2–25. http://dx.doi.org/10.31272/jeasd.conf.2.2.4.

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The aim of this research is investigating the direct effect of crystallinity of thermoplastic polymers on their thermal conductivity values. The study has included many materials, namely: polyoxymethylene (POM), high-density polyethylene (HDPE), low-density polypropylene (LDPE), polypropylene (PP), polyamide (PA) and polyethylene terephthalate (PET). The degrees of crystallinity ranged from high-values (60-70%), mid-values (30-40%) and low-values (10-20%). The work has done theoretically and experimentally. Theoretical work has used mathematical function extracted from reliable empirical relat

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22

Colonna, Samuele, Daniele Battegazzore, Matteo Eleuteri, Rossella Arrigo, and Alberto Fina. "Properties of Graphene-Related Materials Controlling the Thermal Conductivity of Their Polymer Nanocomposites." Nanomaterials 10, no. 11 (2020): 2167. http://dx.doi.org/10.3390/nano10112167.

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Different types of graphene-related materials (GRM) are industrially available and have been exploited for thermal conductivity enhancement in polymers. These include materials with very different features, in terms of thickness, lateral size and composition, especially concerning the oxygen to carbon ratio and the possible presence of surface functionalization. Due to the variability of GRM properties, the differences in polymer nanocomposites preparation methods and the microstructures obtained, a large scatter of thermal conductivity performance is found in literature. However, detailed cor

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23

Kausar, Ayesha. "Polymeric nanocomposites reinforced with nanowhiskers: Design, development, and emerging applications." Journal of Plastic Film & Sheeting 36, no. 3 (2020): 312–33. http://dx.doi.org/10.1177/8756087919898731.

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This article provides insights into nanowhisker nanofiller particles, different categories of polymer/nanowhisker nanocomposites, and broad span of applications. Nanowhiskers are hierarchical needle-like elementary crystallites, often used as nanofillers in polymers. Cellulose, chitin, zinc oxide, fullerene, and aluminum nitride-based nanowhiskers have been employed in matrices. Inclusion of organic and inorganic nanowhiskers in polymers has enhanced thermal conductivity, electrical conductivity, thermal stability, water resistance, and other physical properties of nanocomposites. Polymer/nano

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24

SATO, Sadao, Takumi SAITO, and Yasushi OYANAGI. "Thermal Conductivity and Thermal Diffusivity of Molten Polymers." Seikei-Kakou 4, no. 1 (1992): 55–61. http://dx.doi.org/10.4325/seikeikakou.4.55.

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25

Suleiman, Bashir M. "Thermal Conductivity and Diffusivity of Polymers." International Journal of Physics: Study and Research 1, no. 1 (2018): 54–58. http://dx.doi.org/10.18689/ijpsr-1000107.

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26

Greig, D. "Low temperature thermal conductivity of polymers." Cryogenics 28, no. 4 (1988): 243–47. http://dx.doi.org/10.1016/0011-2275(88)90008-2.

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27

Sharshira, Essam Mohamed, Ahmed A. Ataalla, Mohamed Hagar, Mohammed Salah, Mariusz Jaremko, and Nader Shehata. "Novel Novolac Phenolic Polymeric Network of Chalcones: Synthesis, Characterization, and Thermal–Electrical Conductivity Investigation." Molecules 27, no. 17 (2022): 5409. http://dx.doi.org/10.3390/molecules27175409.

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A series of novolac phenolic polymeric networks (NPPN) were prepared via an acid-catalyzed polycondensation reaction of formaldehyde with chalcones possessing a p-phenolic OH group. When p-hydroxybenzaldehyde was treated with formaldehyde under the same conditions, a phenolic polymer (PP) was obtained. The resulting polymers were isolated in excellent yields (83–98%). Isolated polymers (NPPN, PP) were characterized using FTIR, TGA, and XRD. The results obtained from the TGA revealed that all prepared phenolic polymers have high thermal stability at high temperatures and can act as thermosettin

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28

Shin, Jungwoo, Jaeuk Sung, Minjee Kang, et al. "Light-triggered thermal conductivity switching in azobenzene polymers." Proceedings of the National Academy of Sciences 116, no. 13 (2019): 5973–78. http://dx.doi.org/10.1073/pnas.1817082116.

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Materials that can be switched between low and high thermal conductivity states would advance the control and conversion of thermal energy. Employing in situ time-domain thermoreflectance (TDTR) and in situ synchrotron X-ray scattering, we report a reversible, light-responsive azobenzene polymer that switches between high (0.35 W m−1K−1) and low thermal conductivity (0.10 W m−1K−1) states. This threefold change in the thermal conductivity is achieved by modulation of chain alignment resulted from the conformational transition between planar (trans) and nonplanar (cis) azobenzene groups under U

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29

Urkimbaeva, Perizat, Bauyrzhan Bakytzhanuly, Yesen Dilmukhambetov, Alua Mamutova та Zarina Kenessova. "Influence of hydrophilic polymers based on polyvinyl alcohol and starch on physiсo-mechanical properties of thermal insulation materials". Chemical Bulletin of Kazakh National University, № 1 (25 березня 2020): 32–38. http://dx.doi.org/10.15328/cb1094.

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Thermal insulating materials based on diatomite with burnable and reinforcing additives modified with synthetic and natural polymers have been developed. A mixture of polyvinyl alcohol and starch was used as modifying polymers. The parameters of linear shrinkage, density, tensile strengths in compression and bending, as well as the coefficient of thermal conductivity of the material were determined depending on the concentration and ratio of polymers. It was established that polymer additives had a positive effect on almost all specified characteristics of thermal insulating materials. For exa

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30

Prasher, Ravi S., Jim Shipley, Suzana Prstic, Paul Koning, and Jin-lin Wang. "Thermal Resistance of Particle Laden Polymeric Thermal Interface Materials." Journal of Heat Transfer 125, no. 6 (2003): 1170–77. http://dx.doi.org/10.1115/1.1621893.

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Particle laden polymers are one of the most prominent thermal interface materials (TIM) used in electronics cooling. Most of the research has primarily dealt with the understanding of the thermal conductivity of these types of TIMs. For thermal design, reduction of the thermal resistance is the end goal. Thermal resistance is not only dependent on the thermal conductivity, but also on the bond line thickness (BLT) of these TIMs. It is not clear which material property(s) of these particle laden TIMs affects the BLT and eventually the thermal resistance. This paper introduces a rheology based s

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31

Lin, Chunbo, and Han Zheng. "Interpretable Machine Learning Strategies for Accurate Prediction of Thermal Conductivity in Polymeric Systems." Advances in Engineering Technology Research 10, no. 1 (2024): 499. http://dx.doi.org/10.56028/aetr.10.1.499.2024.

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Polymers, integral to advancements in high-tech fields, necessitate the study of their thermal conductivity (TC) to enhance material attributes and energy efficiency. The TC of polymers obtained by molecular dynamics (MD) calculations and experimental measurements is slow, and it is difficult to screen polymers with specific TC in a wide range. Existing machine learning (ML) techniques for determining polymer TC suffer from the problems of too large feature space and cannot guarantee very high accuracy. In this work, we leverage TCs from accessible datasets to decode the Simplified Molecular I

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32

OGIHARA, S., M. OKITA, J. SHIMIZU, M. HAYASHIDA, Y. OKABE, and N. TAKEDA. "PMC-27: Experimental Evaluation of Thermal Conductivity of Carbon Fiber Reinforced Plastics(PMC-IV: POLYMERS AND POLYMER MATRIX COMPOSITES)." Proceedings of the JSME Materials and Processing Conference (M&P) 2005 (2005): 42. http://dx.doi.org/10.1299/jsmeintmp.2005.42_5.

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Zhang, Xiao Guang, Ying Jie Ji, Shi Gang Wang, and Qing Lin Hou. "Studies on Thermal Conductivity of MWNTs/EPDM Composites by the Heat Probe Method." Applied Mechanics and Materials 184-185 (June 2012): 1221–25. http://dx.doi.org/10.4028/www.scientific.net/amm.184-185.1221.

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Multi-walled carbon nanotubes (MWNTs) were used as filler to enhance thermal conductivity of Ethylene propylene diene monomer (EPDM) polymers. In order to study the thermal conductivity of the MWNTs/EPDM composites in three different directions, an experiment was conducted by the heat probe method. The results show the general average thermal conductivity of MWNTs/EPDM composites is 0.323 W/m•K，which is significantly higher than EPDM polymers. The maximum difference of thermal conductivity between two directions is 8.7% relative to the general average, indicating obvious anisotropic behavior.

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Zafeiropoulou, Konstantina, Christina Kostagiannakopoulou, Anna Geitona, Xenia Tsilimigkra, George Sotiriadis, and Vassilis Kostopoulos. "On the Multi-Functional Behavior of Graphene-Based Nano-Reinforced Polymers." Materials 14, no. 19 (2021): 5828. http://dx.doi.org/10.3390/ma14195828.

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The objective of the present study is the assessment of the impact performance and the concluded thermal conductivity of epoxy resin reinforced by layered Graphene Nano-Platelets (GNPs). The two types of used GNPs have different average thicknesses, <4 nm for Type 1 and 9–12 nm for Type 2. Graphene-based polymers containing different GNP loading contents (0.5, 1, 5, 10, 15 wt.%) were developed by using the three-roll mill technique. Thermo-mechanical (Tg), impact tests and thermal conductivity measurements were performed to evaluate the effect of GNPs content and type on the final propertie

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Lucyshyn, Thomas, Lara-Vanessa Des Enffans d’Avernas, and Clemens Holzer. "Influence of the Mold Material on the Injection Molding Cycle Time and Warpage Depending on the Polymer Processed." Polymers 13, no. 18 (2021): 3196. http://dx.doi.org/10.3390/polym13183196.

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The thermal properties of the mold influence the cooling situation in the injection molding process. While there are experimental studies investigating the influence of special mold materials, they are limited to few polymers. In this work, an extensive parameter study with the simulation software Autodesk Moldflow Insight was performed to analyze the influence of the polymer itself on the impact of the mold steel on cycle time and warpage. The investigated part was a box with two thickness variations. A conventional mold steel was compared with a steel grade featuring approximately double the

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Ma, Hao, Krystelle Lionti, Teddie P. Magbitang, et al. "Pore-Confined Polymers Enhance the Thermal Conductivity of Polymer Nanocomposites." ACS Macro Letters 11, no. 1 (2021): 116–20. http://dx.doi.org/10.1021/acsmacrolett.1c00703.

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Gulia, Vikas, Savita V. Jatti, Vinay S. Jatti, Shruti Maheshwari, and Nitin S. Solke. "Synthesis and Characterization of Hybrid Polymer Composite: An Experimental Approach." E3S Web of Conferences 455 (2023): 03024. http://dx.doi.org/10.1051/e3sconf/202345503024.

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Hybrid Polymer composites have recently emerged as one of the most important fields for researchers owing to their weight reduction benefits, corrosion resistance, design flexibility, manufacturing developments, multidiscipline applications, and sustainability. There are many types of hybrid polymer composites, one of which is made up of combining natural polymers and synthetic polymers and the other which is made up of combining natural-natural polymers. Hybrid composites also consist of nanocomposites, molecular composites, nanomaterials, and mesoscopic materials. In present study, hybrid po

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38

Ali, Mohamed, Redhwan Almuzaiqer, Hassan Alshehri, Mohammed A. Alanazi, Turki Almudhhi, and Abdullah Nuhait. "New Bound and Hybrid Composite Insulation Materials from Waste Wheat Straw Fibers and Discarded Tea Bags." Buildings 15, no. 14 (2025): 2402. https://doi.org/10.3390/buildings15142402.

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This study utilizes waste wheat straw fibers and discarded tea bags as novel raw materials for developing new thermal insulation and sound absorption composites. Wood adhesive (WA) is used to bind the polymer raw materials. Loose polymers and different composites are experimentally developed in different concentrations. Sound absorption and thermal conductivity coefficients are obtained for the developed boards. Bending moment analysis and the moisture content of the boards are reported in addition to a microstructure analysis of the straw fibers from wheat. The results indicate that as the wh

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Zhi, C. Y., Yoshio Bando, Wenlong L. Wang, Chengchun C. Tang, Hiroaki Kuwahara, and Dmitri Golberg. "Mechanical and Thermal Properties of Polymethyl Methacrylate-BN Nanotube Composites." Journal of Nanomaterials 2008 (2008): 1–5. http://dx.doi.org/10.1155/2008/642036.

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Polymethyl methacrylate (PMMA)-BN nanotube (BNNT) composites were fabricated and their mechanical and thermal properties were analyzed. Using a 1 wt.% BNNTs fraction in a polymer, the elastic modulus of PMMA was increased up to 19%. In addition, thermal stability and glass transition temperature of PMMA were also positively affected. The thermal conductivity of PMMA with BNNT additions increased three times. The resultant BNNT-PMMA composites possess the high electrical breakover voltages. Thus our studies clearly indicate that BNNTs are promising nanofillers for improvement of mechanical and

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Ansari, Reza, and M. B. Keivani. "Polyaniline Conducting Electroactive Polymers Thermal and Environmental Stability Studies." E-Journal of Chemistry 3, no. 4 (2006): 202–17. http://dx.doi.org/10.1155/2006/395391.

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In the current studies, polyaniline (PANi) was prepared both chemical and electrochemically in the presence of different bronsted acids from aqueous solutions. The effect of thermal treatment on electrical conductivity, and thermal stability of the PANi conducting polymers were investigated using 4-point probe and TGA techniques respectively. It was found that polymer prepared by CV method is more thermally stable than those prepared by the other electrochemical techniques. In this paper we have also reviewed some fundamental information about synthesis, general properties, diverse application

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41

Kostagiannakopoulou, C., E. Fiamegkou, G. Sotiriadis, and V. Kostopoulos. "Thermal Conductivity of Carbon Nanoreinforced Epoxy Composites." Journal of Nanomaterials 2016 (2016): 1–12. http://dx.doi.org/10.1155/2016/1847325.

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The present study attempts to investigate the influence of multiwalled carbon nanotubes (MWCNTs) and graphite nanoplatelets (GNPs) on thermal conductivity (TC) of nanoreinforced polymers and nanomodified carbon fiber epoxy composites (CFRPs). Loading levels from 1 to 3% wt. of MWCNTs and from 1 to 15% wt. of GNPs were used. The results indicate that TC of nanofilled epoxy composites increased with the increase of GNP content. Quantitatively, 176% and 48% increase of TC were achieved in nanoreinforced polymers and nanomodified CFRPs, respectively, with the addition of 15% wt. GNPs into the epox

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Ponam and Parshuram Singh. "Synthesis and characterization of PEO and PVDF based polymer electrolytes with Mg(NO₃)₂ ionic salt as ionic conductivity improver." Journal of Physics: Conference Series 2062, no. 1 (2021): 012031. http://dx.doi.org/10.1088/1742-6596/2062/1/012031.

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Abstract The demand for solid polymer electrolytes is increasing continuously because of their better mechanical properties, stability, and strength while compared with liquid or gel electrolytes. However, the polymers are having poor ionic conductivity that can be improved by adding ionic salt during solid electrolyte production. Further, not all the electrolytes are compatible with polymers also the concentration of ionic salt beyond some limit not only decrease the ionic conductivity of solid electrolyte but also decrease the strength as well. In the present work, the mixture of two differe

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Akhtar, Syed Sohail. "An Integrated Approach to Design and Develop High-Performance Polymer-Composite Thermal Interface Material." Polymers 13, no. 5 (2021): 807. http://dx.doi.org/10.3390/polym13050807.

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A computational framework based on novel differential effective medium approximation and mean-field homogenization is used to design high-performance filler-laden polymer thermal interface materials (TIMs). The proposed design strategy has the capability to handle non-dilute filler concentration in the polymer matrix. The effective thermal conductivity of intended thermal interface composites can be tailored in a wide range by varying filler attributes such as size, aspect ratio, orientation, as well as filler–matrix interface with an upper limit imposed by the shear modulus. Serval potential

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Antar, Zied, Hervé Noel, Jean François Feller, Patrick Glouannec, and Khaled Elleuch. "Thermophysical and Radiative Properties of Conductive Biopolymer Composite." Materials Science Forum 714 (March 2012): 115–22. http://dx.doi.org/10.4028/www.scientific.net/msf.714.115.

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Usual plate solar collectors, based on a metal absorber (Cu, Al) selectively coated are technologically very sophisticated, expensive to produce and they are great consumer of fossil raw material. Polymeric materials are considered as a promising alternative for many interesting properties; easy moldability, corrosion resistance, they also offer a significant cost-reduction for solar thermal collectors, and a mass production may thus benefit to a broader utilization of solar energy. Most drawbacks of polymers are their low thermal properties; essentially thermal conductivity coefficient may st

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Privalko, V. P., and N. A. Rekhteta. "Thermal conductivity of polymers under elevated pressures." High Pressure Research 1, no. 5-6 (1989): 377–81. http://dx.doi.org/10.1080/08957958908202500.

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Xu, Xiangfan, Jie Chen, Jun Zhou, and Baowen Li. "Thermal Conductivity of Polymers and Their Nanocomposites." Advanced Materials 30, no. 17 (2018): 1705544. http://dx.doi.org/10.1002/adma.201705544.

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Xu, Hao-Zhe, and Xiang-Fan Xu. "Thermal percolation network in alumina based thermal conductive polymer." Acta Physica Sinica 72, no. 2 (2023): 024401. http://dx.doi.org/10.7498/aps.71.20221400.

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Polymers incorporated with high thermal conductivity fillers have numerous applications in thermal interface materials. Plenty of efforts have been made to improve the thermal conductivity of polymer composite. A possible method is to choose fillers with different morphologies, which can combine the advantages of various fillers. However, owing to the limitations of the effective medium theory as well as lack of researches of thermal percolation, there is still little understanding of the synergistic mechanism of fillers with different morphologies. In order to avoid the coupling effect of dif

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Dong, Lan, Chengpeng Bao, Shiqian Hu, et al. "Coupling Electronic and Phonon Thermal Transport in Poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) Nanofibers." Nanomaterials 12, no. 8 (2022): 1282. http://dx.doi.org/10.3390/nano12081282.

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The thermal transport of Poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) nanofiber is contributed by the electronic component of thermal conduction and the phonon component of thermal conduction. The relationship between the electrical conductivity and thermal conductivity of these conducting polymers is of great interest in thermoelectric energy conversation. In this work, we characterized the axial electrical conductivities and thermal conductivities of the single PEDOT:PSS nanofibers and found that the Lorenz number L is larger than Sommerfeld value L0 at 300 K. In addit

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Chepchurov, Mikhail S., Nikolay S. Lubimyi, Vladimir P. Voronenko, and Daniel R. Adeniyi. "Determination of the Thermal Conductivity of Metal-Polymers." Materials Science Forum 973 (November 2019): 9–14. http://dx.doi.org/10.4028/www.scientific.net/msf.973.9.

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The use of metal-polymers in the manufacture of mold-forming parts allows for the significant reduction in price and time used in manufacturing of parts. Using data on the thermal conductivity of metal-polymers in calculations of the cooling system of molds allows calculating the optimal cycle of obtaining the product. The authors propose a method of determining the coefficient of heat transfer of metal-polymers based on a die matrix, filled with aluminum. The chosen equipment or measuring tool by them, allows determining the heat transfer coefficient of the material in use. The values of the

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KONDAWAR, S. B., M. J. HEDAU, V. A. TABHANE, S. P. DONGRE, U. B. MAHATME, and R. A. MONDAL. "STUDIES ON CHEMICALLY SYNTHESIZED DOPED POLY(O-ANISIDINE) AND COPOLY{ANILINE-(O-ANISIDINE)}." Modern Physics Letters B 20, no. 23 (2006): 1461–70. http://dx.doi.org/10.1142/s0217984906011517.

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Substituted polyaniline poly(o-anisidine) and copoly{aniline-(o-anisidine)} were synthesized by the oxidative chemical polymerization method. Sulfuric acid was used as the dopant during the polymerization process. Synthesized polymers were subjected to the spectroscopic, X-ray and thermal analysis. Formation of different oxidation states of the polymer were confirmed by the spectroscopic (UV-VIS and FTIR) analysis. Polymers reveal polycrystalline nature and orthorhombic crystal structure. Three step decomposition patterns similar to that of polyaniline are observed in the thermogram. The condu

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