Thermo-mechanical properties of polystyrene-based shape memory nanocomposites

Xu, Ben Bin; Fu, Yong Qing; Ahmad, Manzoor; Luo, Jikui; Huang, Wei; Kraft, Arno; Reuben, Robert Lewis; Pei, Yu; Chen, Zhenguo; Hosson, J.Th.M. De

doi:10.1039/b923238a

Cited by 87 publications

(67 citation statements)

References 33 publications

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“…[4,7,9,10,25,37,43,139,148,149], based on the principles of the above discussed working mechanisms, the performance of existing materials can be optimized by means of controlling the processing parameters in programming [113,126,150]. Figure 30 illustrates the influence of the programming temperature on shape fixity ratio (R f ) and shape recovery ratio (R r ).…”

Section: Optimizationmentioning

confidence: 99%

“…In recent years, we have seen great efforts in developing new polymers and improving existing ones for tailored shape memory features, improved performance and/or new functions [14,29,34,37,52,55,79,[131][132][133][134][135][136][137][138][139][140][141][142][143][144][145]. On the other hand, the SME has been discovery in many other materials beyond the traditional polymers, such as starch, maize flour and even nails [3,146].…”

Section: Design Of Polymeric Materials and Optimizationmentioning

confidence: 99%

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Mechanisms of the Shape Memory Effect in Polymeric Materials

et al. 2013

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Abstract:This review paper summarizes the recent research progress in the underlying mechanisms behind the shape memory effect (SME) and some newly discovered shape memory phenomena in polymeric materials. It is revealed that most polymeric materials, if not all, intrinsically have the thermo/chemo-responsive SME. It is demonstrated that a good understanding of the fundamentals behind various types of shape memory phenomena in polymeric materials is not only useful in design/synthesis of new polymeric shape memory materials (SMMs) with tailored performance, but also helpful in optimization of the existing ones, and thus remarkably widens the application field of polymeric SMMs.

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Section: Optimizationmentioning

confidence: 99%

Section: Design Of Polymeric Materials and Optimizationmentioning

confidence: 99%

Mechanisms of the Shape Memory Effect in Polymeric Materials

et al. 2013

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“…The remaining porous fibers were comprised of entangled CNTs, held together by van der Waals interactions, and had much better mechanical properties than random assemblies of nanotubes in bucky paper. Xu et al [193] found that the incorporation of different nanofillers (alumina, silica and clay) into chemically cross-linked polystyrene gives different macroscopic properties, depending on the shape of the utilized nanofillers. As evidenced by both experimental and theoretical analysis, rod-shaped clay nanofillers have a stronger reinforcement influence than spherical nanoparticles such as Al 2 O 3 , due to their higher aspect ratio and ability to reinforce a polymer in multiple directions.…”

Section: Review Of Progressmentioning

confidence: 99%

Review on the Functional Determinants and Durability of Shape Memory Polymers

Pretsch

2010

Polymers

112

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Shape memory polymers (SMP) belong to the class of stimuli-responsive materials and have generated significant research interest. Their capability to retain an imposed, temporary shape and to recover the initial, permanent shape upon exposure to an external stimulus depends on the "functional determinants", which in simplistic terms, can be divided into structural/morphological and processing/environmental factors. The primary aim of the first part of this review is to reflect the knowledge about these fundamental relationships. In a next step, recent advances in shape memory polymer composites are summarized. In contrast to earlier reviews, studies on the impairment of shape memory properties through various factors, such as aging, compression and hibernation, lubricants, UV light and thermo-mechanical cycling, are extensively reviewed. Apart from summarizing the state-of-the-art in SMP research, recent progress is commented.

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“…3-Dimensional microstructure of the nanofiller loaded polymer composites is shown in Fig. 1 [18]. When the nanofillers are dispersed in the soft polymeric matrices, mechanical properties of the composites can be enhanced by a reinforcing effect from transferring the loads.…”

Section: Introductionmentioning

confidence: 99%

“…When the polymer composites filled with spherical filler (aspect ratio of the particle is equal to unity), the modulus of the composite depends on the modulus, density, size, shape, volume ratio, and number of the incorporated particles. The 1-dimensional filler may connect more polymer chains and [18].…”

Section: Introductionmentioning

confidence: 99%

A Review on Thermal Conductivity of Polymer Composites Using Carbon-Based Fillers : Carbon Nanotubes and Carbon Fibers

Hong¹,

Park²,

Shim³

2010

Carbon letters

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Recently, the use of thermal conductive polymeric composites is growing up, where the polymers filled with the thermally conductive fillers effectively dissipate heat generated from electronic components. Therefore, the management of heat is directly related to the lifetime of electronic devices. For the purpose of the improvement of thermal conductivity of composites, fillers with excellent thermally conductive behavior are commonly used. Thermally conductive particles filled polymer composites have advantages due to their easy processibility, low cost, and durability to the corrosion. Especially, carbon-based 1-dimensional nanomaterials such as carbon nanotube (CNT) and carbon nanofiber (CNF) have gained much attention for their excellent thermal conductivity, corrosion resistance and low thermal expansion coefficient than the metals. This paper aims to review the research trends in the improvement of thermal conductivity of the carbon-based materials filled polymer composites.

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Thermo-mechanical properties of polystyrene-based shape memory nanocomposites

Cited by 87 publications

References 33 publications

Mechanisms of the Shape Memory Effect in Polymeric Materials

Mechanisms of the Shape Memory Effect in Polymeric Materials

Review on the Functional Determinants and Durability of Shape Memory Polymers

A Review on Thermal Conductivity of Polymer Composites Using Carbon-Based Fillers : Carbon Nanotubes and Carbon Fibers

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