Effect of filler treatment on temperature dependence of resistivity of carbon‐black‐filled polymer blends

Yu, Gang; Zhang, Ming Qiu; Zeng, Han; Hou, Yan Hui; Zhang, Hai Bo

doi:10.1002/(sici)1097-4628(19990725)73:4<489::aid-app4>3.3.co;2-1

Cited by 4 publications

(6 citation statements)

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“…The values of the surface energy of polymers are summarized in Table , and all the values we used in this work are collected at room temperature (20°C). It should be noted that the surface energy of the rGOs is proposed to be constant at different temperatures , and all the values of the surface energies of the polymers in the melt state were extrapolated from literature values at 20°C . As summarized in Table , the surface energy of rGOs in melt state (200°C) is derived as 40.78 mJ m −2 , which is close to the value of graphene in reported literature .…”

Section: Resultssupporting

confidence: 72%

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Selective localization of reduced graphene oxides at the interface of PLA/EVA blend and its resultant electrical resistivity

et al. 2015

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Cocontinuous PLA/EVA (60/40 wt%) blends were filled with reduced graphene oxides (0.1–3 wt%) through the master batches of PLA/rGOs and EVA/rGOs, respectively. The results show that rGOs are located at the interface when the blend nanocomposites were prepared from PLA masterbatch. On the other hand, rGOs are located in EVA component when the blend nanocomposites were prepared from EVA/rGOs materbatch. The underlying mechanism for selective localization of rGOs in PLA/EVA was systematically investigated. First, theoretical prediction indicates the interface energies between two polymer components and rGOs are similar and rGOs prefer to locate at the interface of blend. Therefore, kinetic effects, including interfacial stability of rGOs and viscoelastic properties of polymer, play an important role on the selective localization of rGOs migration. Finally, The electrical resistivity measurements show that nanocomposites with rGOs locating at the interface is endowed much lower resistivity and percolation threshold compared to the blend nanocomposites with rGOs locating at EVA component. POLYM. COMPOS., 38:1982–1991, 2017. © 2015 Society of Plastics Engineers

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Section: Resultssupporting

confidence: 72%

“…The interfacial energy can be calculated from surface energies and their disperse/polar components. Two methods including harmonic‐mean and geometric‐mean equations are applied as follows, and the former is valid between low‐energy materials; the latter is often applied for a low‐energy material and a high energy material .…”

Section: Resultsmentioning

confidence: 99%

Selective localization of reduced graphene oxides at the interface of PLA/EVA blend and its resultant electrical resistivity

et al. 2015

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“…For a composite consisting of semi‐crystalline polymer and conductive particles, a positive temperature coefficient (PTC) phenomenon is often observed during heating . The marked increase in resistivity at elevated temperature results from the separation of contacting conductive additives induced by melting of the crystalline phase.…”

Section: Electrical Conductivity Recoverymentioning

confidence: 99%

Self‐healing polymeric materials towards non‐structural recovery of functional properties

Zhu

Rong

Zhang

2014

Polymer International

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“…Charge relaxation phenomena in mixtures composed of ceramics [181,182,183,184], metal-oxides [185,186], ionic-conductors [187,188,63,189,190] have been also studied [185,181,186,182,183,88,184]. In the case of conductive coating and electromagnetic shielding applications carbon-black [191,192,168,193,194,195,196,197,198,199] and metallic particles [200,201,95] have been used as heterogeneities in the matrix medium. For photonic applications, metal-dielectric mixtures have been widely applied [202,203,204,205,206,207,208,209,210,211,212] to obtain photon localization.…”

Section: Experimental Studies Of Dielectric Systemsmentioning

confidence: 99%

Dielectric mixtures: electrical properties and modeling

Tuncer

Serdyuk

Gubanski

2002

IEEE Trans. Dielect. Electr. Insul.

269

154

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A review of current state of understanding of dielectric mixture properties and approaches to use numerical calculations for their modeling are presented. It is shown that interfacial polarization can yield different non-Debye dielectric responses depending on the properties of the constituents, their concentrations and geometrical arrangements. Future challenges on the subject are also discussed.

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Effect of filler treatment on temperature dependence of resistivity of carbon‐black‐filled polymer blends

Cited by 4 publications

References 0 publications

Selective localization of reduced graphene oxides at the interface of PLA/EVA blend and its resultant electrical resistivity

Selective localization of reduced graphene oxides at the interface of PLA/EVA blend and its resultant electrical resistivity

Self‐healing polymeric materials towards non‐structural recovery of functional properties

Dielectric mixtures: electrical properties and modeling

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