Practical PBT/PC/GNP composites with anisotropic thermal conductivity

Zheng, Xiujuan; Wen, Bianying

doi:10.1039/c9ra07168g

Cited by 13 publications

(12 citation statements)

References 38 publications

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“…As a result of these networks, enhanced thermal conductivities (3.788, 5.807, 5.922, and 8.094 W/m•K for M5 30 wt.%, M15 30 wt.%, and M25 20 and 30 wt.%, respectively) were observed, with increases of 657.6%, 1061.4%, 1084.4%, and 1518.8% compared to the neat pCBT. Table S1 summarizes the in-plane thermal conductivities of composites with GNP fillers reported in previous studies [13,22,[25][26][27][28].…”

Section: Resultsmentioning

confidence: 99%

Thermal Percolation Behavior in Thermal Conductivity of Polymer Nanocomposite with Lateral Size of Graphene Nanoplatelet

Jang

Nam

et al. 2022

Polymers

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In this study, the thermal percolation behavior for the thermal conductivity of nanocomposites according to the lateral size of graphene nanoplatelets (GNPs) was studied. When the amount of GNPs reached the critical concentration, a rapid increase in thermal conductivity and thermal percolation behavior of the nanocomposites were induced by the GNP network. Interestingly, as the size of GNPs increased, higher thermal conductivity and a lower percolation threshold were observed. The in-plane thermal conductivity of the nanocomposite containing 30 wt.% M25 GNP (the largest size) was 8.094 W/m·K, and it was improved by 1518.8% compared to the polymer matrix. These experimentally obtained thermal conductivity results for below and above the critical content were theoretically explained by applying Nan’s model and the percolation model, respectively, in relation to the GNP size. The thermal percolation behavior according to the GNP size identified in this study can provide insight into the design of nanocomposite materials with excellent heat dissipation properties.

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Section: Resultsmentioning

confidence: 99%

Thermal Percolation Behavior in Thermal Conductivity of Polymer Nanocomposite with Lateral Size of Graphene Nanoplatelet

Jang

Nam

et al. 2022

Polymers

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“…The crystallinity of the blend was calculated using eqn (2):where X C is the relative crystallinity of the sample, Δ H m is the melting enthalpy of the sample, w f is the weight fraction of PBT in the sample, and Δ H m 0 is the theoretical heat of fusion for a completely crystallized PBT with a value of 142 J g −1 . 28…”

Section: Methodsmentioning

confidence: 99%

Design and synthesis of POE/LLDPE functionalized with different amounts of reactive functional groups and its potential in toughening of PBT resin

Song,

Yang,

Zhou

et al. 2024

React. Chem. Eng.

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“…The impact strength of various PP/TPU samples was performed by a XJUD‐55 Material Test Instrument at room temperature according to the GB/T 1043.1‐2008 standard. [ 29 ] The impact strength of each sample was obtained based on the average of five values.…”

Section: Methodsmentioning

confidence: 99%

Thermoplastic polyurethane (TPU) modifier to develop bimodal cell structure in polypropylene/TPUmicrocellular foam in presence of supercriticalCO₂

Wang

et al. 2020

Vinyl Additive Technology

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Currently, the fabrication of microcell and bimodal cell structures (BCS) in polymer foams by using supercritical fluids has become a hot as well as a challenging research area worldwide. In this work, an environmentally friendly, effective, facile, and CO 2-based foaming technique was presented to fabricate microcellular polypropylene (PP) foams with BCS via blending with thermoplastic polyurethane (TPU). The toughness, thermal properties, rheological properties, and foamability of PP were systematically investigated with gradual incorporation of TPU. Representative sea-island structure was observed in the scanning electron microscopy (SEM) images for the fracture surface of various PP/TPU samples. Rheological measurement results demonstrated that the viscoelasticity of various PP/TPU samples was improved remarkably compared with that of pure PP and pure TPU. The impact strength of various PP/TPU samples possessed the highest value as 12.4 kJ/m 2 with the TPU content of 15 wt%. After the addition of TPU, an ameliorative cellular morphology was observed in the SEM micrographs of various PP/TPU samples and their volume expansion ratio was enhanced significantly thanks to their improved melt elasticity. Moreover, it is worth noting that BCS appeared in various PP/TPU foams when the TPU content exceeded 5 wt%.

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Practical PBT/PC/GNP composites with anisotropic thermal conductivity

Abstract: The selective distribution of thermally conductive fillers in a co-continuous polymer blends provides an industrialized preparation method that takes into account both the properties and functions of thermally conductive composites.

Cited by 13 publications

References 38 publications

Thermal Percolation Behavior in Thermal Conductivity of Polymer Nanocomposite with Lateral Size of Graphene Nanoplatelet

Thermal Percolation Behavior in Thermal Conductivity of Polymer Nanocomposite with Lateral Size of Graphene Nanoplatelet

Design and synthesis of POE/LLDPE functionalized with different amounts of reactive functional groups and its potential in toughening of PBT resin

Thermoplastic polyurethane (TPU) modifier to develop bimodal cell structure in polypropylene/TPUmicrocellular foam in presence of supercriticalCO₂

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Practical PBT/PC/GNP composites with anisotropic thermal conductivity

Abstract: The selective distribution of thermally conductive fillers in a co-continuous polymer blends provides an industrialized preparation method that takes into account both the properties and functions of thermally conductive composites.

Cited by 13 publications

References 38 publications

Thermal Percolation Behavior in Thermal Conductivity of Polymer Nanocomposite with Lateral Size of Graphene Nanoplatelet

Thermal Percolation Behavior in Thermal Conductivity of Polymer Nanocomposite with Lateral Size of Graphene Nanoplatelet

Design and synthesis of POE/LLDPE functionalized with different amounts of reactive functional groups and its potential in toughening of PBT resin

Thermoplastic polyurethane (TPU) modifier to develop bimodal cell structure in polypropylene/TPUmicrocellular foam in presence of supercriticalCO2

Contact Info

Product

Resources

About

Thermoplastic polyurethane (TPU) modifier to develop bimodal cell structure in polypropylene/TPUmicrocellular foam in presence of supercriticalCO₂