Creep and recovery of polystyrene composites filled with graphene additives

Tang, Long‐Cheng; Wang, Xu; Gong, Lei; Peng, Ke; Zhao, Li; Qiu, Chen; Wu, Lianbin; Jiang, Jianxiong; Lai, Guoqiao

doi:10.1016/j.compscitech.2013.11.028

Cited by 125 publications

(30 citation statements)

References 52 publications

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“…This is particularly important when the innovative functional polymeric materials incorporating nanomaterials are used in integrated systems such as automotive applications and the components are exposed to varying stresses over extended periods at elevated temperatures. Creep and recovery experiments present a sensitive means of assessing the dimensional stability of polymeric materials by understanding their viscoelastic deformation behaviour under constant stress and temperature [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Creep and Recovery Behaviour of Polyolefin-Rubber Nanocomposites Developed for Additive Manufacturing

et al. 2016

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Nanocomposite application in automotive engineering materials is subject to continual stress fields together with recovery periods, under extremes of temperature variations. The aim is to prepare and characterize polyolefin-rubber nanocomposites developed for additive manufacturing in terms of their time-dependent deformation behaviour as revealed in creep-recovery experiments. The composites consisted of linear low density polyethylene and functionalized rubber particles. Maleic anhydride compatibilizer grafted to polyethylene was used to enhance adhesion between the polyethylene and rubber; and multi-walled carbon nanotubes were introduced to impart electrical conductivity. Various compositions of nanocomposites were tested under constant stress in creep and recovery. A four-element mechanistic Burger model was employed to model the creep phase of the composites, while a Weibull distribution function was employed to model the recovery phase of the composites. Finite element analysis using Abaqus enabled numerical modelling of the creep phase of the composites. Both analytical and numerical solutions were found to be consistent with the experimental results. Creep and recovery were dependent on: (i) composite composition; (ii) compatibilizers content; (iii) carbon nanotubes that formed a percolation network.

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Section: Introductionmentioning

confidence: 99%

Creep and Recovery Behaviour of Polyolefin-Rubber Nanocomposites Developed for Additive Manufacturing

et al. 2016

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“…Furthermore, with excess content of CNTs, decrease in fluidity with increasing CNT loading becomes an impediment to the formation of a uniform microstructure (Suemori et al 2013). The super hydrophobic aligned layer of polystyrene nanotubes layer showed strong adhesion to water (Tang et al 2014). This, in turn, disclosed the fact that aligned CNTs structure could not only improve hydrophobicity, but also give rise to a high adhesion force.…”

Section: Cnts: In Polypropylene Polymeric Compositesmentioning

confidence: 88%

“…By adding 1 wt% of MWCNTs to polystyrene, the elastic modulus and break stress increased by 36-42 and 25 %, respectively. The verification of the external load transfers to nanotubes was efficiently achieved by tensile tests and in situ transmission electron microscopy, showing that nucleation of cracks takes place at low-density area of CNTs, and after that, propagates along the poor CNT-polystyrene interfaces or relatively low CNT density regions (Kumar Sachdev et al 2013;Tang et al 2014). When the crack dimension exceeds 800 nm, CNTs start to break and/or even remove itself from the polystyrene matrix.…”

Section: Cnts: In Polypropylene Polymeric Compositesmentioning

confidence: 99%

Multifunctionalized Carbon Nanotubes Polymer Composites: Properties and Applications

Julkapli

Sapuan

2015

Advanced Structured Materials

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Carbon nanotubes (CNTs) is a rigid rod-like nanoscale material produced from carbon in powder, liquid, or gel form via acid or chemical hydrolysis. Due to its unique and exceptional renewability, biodegradability, mechanical, physicochemical properties, and abundance, the incorporation associated with a small quantity of CNTs to polymeric matrices enhance the mechanical and thermal resistance, and also stability of the latter by several orders of magnitude. Moreover, NCC-derived carbon materials are of no serious threat to the environment, providing further impetus for the development and applications of this green and renewable biomaterial for lightweight and degradable composites. Surface functionalization of CNTs remains the focus of CNTs research in tailoring its properties for dispersion in hydrophilic and hydrophobic media. Through functionalization, the attachment of appropriate chemical functionalities between conjugated sp 2 of CNTs and polymeric matrix is established. It is thus of utmost importance that the tools and protocols for imaging CNTs in a complex matrix and quantify its reinforcement, antimicrobial, stability, hydrophilicity, and biodegradability are be developed.

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“…Unlike several difficulties of the experimental methods such as complexity of them (they may be time-consuming, expensive and intricate), they are useful to predict the steady state creep behaviors [34][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49]. For instance, the second-stage creep behavior of the composite "SiC/Al6061" was experimentally and analytically analyzed by Morimoto et al [36], in which happening of the non-aligned fibers and creation of the microcracks in the creeping composite are some difficulties during the experimental process.…”

Section: Experimental Methodsmentioning

confidence: 99%

“…Furthermore, the thermal and dynamic mechanical properties of the composites have been studied and analyzed to find and understand the relative formation mechanisms generally [49].…”

Section: Experimental Methodsmentioning

confidence: 99%

Review on Creep Analysis and Solved Problems

Monfared¹

2018

Creep

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This chapter presents a useful literature reviews and applied solved problems that focus on the creep phenomenon and behavior of it in the solids. Various insights and available studies are reviewed and investigated regarding the creep behavior analysis in three categories such as analytical, numerical and experimental methods. In addition, novel and recent findings are presented in this chapter such as predicting and obtaining the viscosity of the solids at high temperatures using steady state creep phenomenon (i.e., introducing a simulation and analogy between creeping solids and viscous fluids).

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Creep and recovery of polystyrene composites filled with graphene additives

Cited by 125 publications

References 52 publications

Creep and Recovery Behaviour of Polyolefin-Rubber Nanocomposites Developed for Additive Manufacturing

Creep and Recovery Behaviour of Polyolefin-Rubber Nanocomposites Developed for Additive Manufacturing

Multifunctionalized Carbon Nanotubes Polymer Composites: Properties and Applications

Review on Creep Analysis and Solved Problems

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