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Li X, Ru K, Zhang S, Chen YK. Study on the mechanism of enlarged spherulite diameter for aliphatic polyester ionomers. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Liu Y, Zhou Y, Xu Y. State-of-the-Art, Opportunities, and Challenges in Bottom-up Synthesis of Polymers with High Thermal Conductivity. Polym Chem 2022. [DOI: 10.1039/d2py00272h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In contrast to metals, polymers are predominantly thermal and electrical insulators. With their unparalleled advantages such as light weight, turning polymer insulators into heat conductors with metal-like thermal conductivity is...
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Zhang Q, Zhang T, Zhou Y, Li C, Wu H, Guo S. Enhanced in-plane thermal conductivity of ultrahigh molecular weight polyethylene films via a new design of a two-step biaxial stretching mode. Polym J 2021. [DOI: 10.1038/s41428-021-00516-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Guo Y, Zhou Y, Xu Y. Engineering polymers with metal-like thermal conductivity—Present status and future perspectives. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.124168] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Zhang H, Shi T, Ma A. Recent Advances in Design and Preparation of Polymer-Based Thermal Management Material. Polymers (Basel) 2021; 13:2797. [PMID: 34451339 PMCID: PMC8400957 DOI: 10.3390/polym13162797] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 08/09/2021] [Accepted: 08/11/2021] [Indexed: 12/11/2022] Open
Abstract
The boosting of consumer electronics and 5G technology cause the continuous increment of the power density of electronic devices and lead to inevitable overheating problems, which reduces the operation efficiency and shortens the service life of electronic devices. Therefore, it is the primary task and a prerequisite to explore innovative material for meeting the requirement of high heat dissipation performance. In comparison with traditional thermal management material (e.g., ceramics and metals), the polymer-based thermal management material exhibit excellent mechanical, electrical insulation, chemical resistance and processing properties, and therefore is considered to be the most promising candidate to solve the heat dissipation problem. In this review, we summarized the recent advances of two typical polymer-based thermal management material including thermal-conduction thermal management material and thermal-storage thermal management material. Furtherly, the structural design, processing strategies and typical applications for two polymer-based thermal management materials were discussed. Finally, we proposed the challenges and prospects of the polymer-based thermal management material. This work presents new perspectives to develop advanced processing approaches and construction high-performance polymer-based thermal management material.
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Affiliation(s)
| | | | - Aijie Ma
- School of Materials Science and Chemical Engineering, Xi’an Technological University, Xi’an 710021, China; (H.Z.); (T.S.)
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Jiang L, Ren Z, Liu W, Liu H, Zhu C. Synthesis and molecular interaction of tung oil‐based anionic waterborne polyurethane dispersion. J Appl Polym Sci 2020. [DOI: 10.1002/app.49383] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Lei Jiang
- School of Materials Science and EngineeringZhengzhou University Zhengzhou People's Republic of China
- High and New Technology Research Center of Henan Academy of Sciences Zhengzhou People's Republic of China
| | - Zhiyong Ren
- High and New Technology Research Center of Henan Academy of Sciences Zhengzhou People's Republic of China
| | - Wentao Liu
- School of Materials Science and EngineeringZhengzhou University Zhengzhou People's Republic of China
| | - Hao Liu
- School of Materials Science and EngineeringZhengzhou University Zhengzhou People's Republic of China
| | - Chengshen Zhu
- School of Materials Science and EngineeringZhengzhou University Zhengzhou People's Republic of China
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Li Y, Pan P, Liu C, Zhou W, Li C, Gong C, Li H, Zhang L, Song H. Influence of chain interaction and ordered structures in polymer dispersed liquid crystalline membranes on thermal conductivity. JOURNAL OF POLYMER ENGINEERING 2020. [DOI: 10.1515/polyeng-2020-0004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Polymer dispersed liquid crystalline (PDLC) membrane with intrinsic thermal conductivity was prepared by dispersing liquid crystalline polysiloxane containing crosslinked structure (liquid crystalline polysiloxane elastomer (LCPE)) into polyvinyl alcohol (PVA). Chemical structures were characterized by Fourier transform infrared (FT-IR) and 1H-NMR, and microscopic structures were analyzed by polarizing optical microscope (POM), scanning electron microscope (SEM) and X-ray diffraction (XRD). The thermal conductivity of PDLC membrane was characterized by hot disk thermal constants analyzer, and the tensile properties were measured by tensile testing machine. Thermal properties were characterized by differential scanning calorimeter (DSC) and thermal gravimetric analyzer (TGA). The results show that LCPE was dispersed in PVA uniformly, and the mesogenic monomer of LCPE formed microscopic ordered structures in PDLC membrane. Meanwhile, hydrogen-bond interaction was formed between LCPE and PVA chain. Both microscopic-ordered structure and the hydrogen-bond interaction improved the phonon transmission path, and the thermal conductivity of PDLC membrane was up to 0.74 W/m⋅K, which was 6 times higher than that of pure PVA film. PDLC membrane possessed proper tensile strength and elongation at break, respectively 5.18 MPa and 338%. As a result, PDLC membrane can be used as thermal conductive membrane in electronic packaging and other related fields.
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Affiliation(s)
- Ying Li
- College of Material Science and Engineering , Xi’an University of Science and Technology , Xi’an , 710054, Shaan Xi , China
| | - Pan Pan
- College of Material Science and Engineering , Xi’an University of Science and Technology , Xi’an , 710054, Shaan Xi , China
| | - Chao Liu
- College of Material Science and Engineering , Xi’an University of Science and Technology , Xi’an , 710054, Shaan Xi , China
| | - Wenying Zhou
- School of Chemistry and Chemical Engineering , Xi’an University of Science and Technology , Xi’an , 710054, China
| | - Chenggong Li
- College of Material Science and Engineering , Xi’an University of Science and Technology , Xi’an , 710054, Shaan Xi , China
| | - Changdan Gong
- College of Material Science and Engineering , Xi’an University of Science and Technology , Xi’an , 710054, Shaan Xi , China
| | - Huilu Li
- College of Material Science and Engineering , Xi’an University of Science and Technology , Xi’an , 710054, Shaan Xi , China
| | - Liang Zhang
- The First Affiliated Hospital , Xi’an Jiaotong University , Xi’an , 710061, Shaan Xi , China
| | - Hui Song
- College of Material Science and Engineering , Xi’an University of Science and Technology , Xi’an , 710054, Shaan Xi , China
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Tarannum F, Muthaiah R, Annam RS, Gu T, Garg J. Effect of Alignment on Enhancement of Thermal Conductivity of Polyethylene-Graphene Nanocomposites and Comparison with Effective Medium Theory. NANOMATERIALS 2020; 10:nano10071291. [PMID: 32630082 PMCID: PMC7407094 DOI: 10.3390/nano10071291] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Revised: 06/25/2020] [Accepted: 06/25/2020] [Indexed: 01/22/2023]
Abstract
Thermal conductivity (k) of polymers is usually limited to low values of ~0.5 Wm−1K−1 in comparison to metals (>20 Wm−1K−1). (100)T3//(926)T4 The goal of this work is to enhance thermal conductivity (k) of polyethylene–graphene nanocomposites through simultaneous alignment of polyethylene (PE) lamellae and graphene nanoplatelets (GnP). Alignment is achieved through the application of strain. Measured values are compared with predictions from effective medium theory. A twin conical screw micro compounder is used to prepare polyethylene–graphene nanoplatelet (PE-GnP) composites. Enhancement in k value is studied for two different compositions with GnP content of 9 wt% and 13 wt% and for applied strains ranging from 0% to 300%. Aligned PE-GnP composites with 13 wt% GnP displays ~1000% enhancement in k at an applied strain of 300%, relative to k of pristine unstrained polymer. Laser Scanning Confocal Microscopy (LSCM) is used to quantitatively characterize the alignment of GnP flakes in strained composites; this measured orientation is used as an input for effective medium predictions. These results have important implications for thermal management applications.
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Bai L, Zhang ZM, Pu JH, Feng CP, Zhao X, Bao RY, Liu ZY, Yang MB, Yang W. Highly thermally conductive electrospun stereocomplex polylactide fibrous film dip-coated with silver nanowires. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122390] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Yang H, Luo X, Shen K, Yuan Y, Fu Q, Gao X, Jiang L. The role of mandrel rotation speed on morphology and mechanical properties of polyethylene pipes produced by rotational shear. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.121915] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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