Features, Questions and Future Challenges in Layered Silicates Clay Nanocomposites with Semicrystalline Polymer Matrices

Harrats, Charef; Groeninckx, Gabriël

doi:10.1002/marc.200700432

Cited by 35 publications

(20 citation statements)

References 89 publications

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“…All the PET-clay nanocomposites have a lower crystallinity than the unfilled PET. This reduction in crystallinity has been proposed to result from a confinement effect, produced by the clay, on the crystallization of polymer chains [17]. The reduction in PET-clay nanocomposites crystallinity values could be expected to result in a reduction in material modulus and thus any improvements in nanocomposite modulus are not due to increasing crystallinity nucleated by the clay.…”

Section: Crystallinitymentioning

confidence: 99%

The effect of temperature and strain rate on the deformation behaviour, structure development and properties of biaxially stretched PET–clay nanocomposites

Shen

Harkin‐Jones

Hornsby

et al. 2011

Composites Science and Technology

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. The effect of temperature and strain rate on the deformation behaviour, structure development and properties of biaxially stretched PET-clay nanocomposites. Composites Science and Technology, Elsevier, 2011, 71 (5), pp.758. <10.1016/j.compscitech.2011.01.024>. Accepted ManuscriptThe effect of temperature and strain rate on the deformation behaviour, structure development and properties of biaxially stretched PET-clay nanocomposites This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. UK AbstractThe inclusion of a synthetic fluoromica clay in PET affects its processability via biaxial stretching and stretching temperature (95 °C and 102 °C) and strain rate (1 s -1 and 2 s -1 )influence the structuring and properties of the stretched material. The inclusion of clay has little effect on the temperature operating window for the PET-clay but it has a major effect on deformation behavior which will necessitate the use of much higher forming forces during processing. The strain hardening behavior of both the filled and unfilled materials is well correlated with tensile strength and tensile modulus. Increasing the stretching temperature to reduce stretching forces has a detrimental effect on clay exfoliation, mechanical and O 2 barrier properties. Increasing strain rate has a lesser effect on the strain hardening behavior of the PET-clay compared with the pure PET and this is attributed to possible adiabatic heating in the PET-clay sample at the higher strain rate. The Halpin-Tsai model is shown to accurately predict the modulus enhancement of the PET-clay materials when a modified particle modulus rather than nominal clay modulus is used.

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Section: Crystallinitymentioning

confidence: 99%

The effect of temperature and strain rate on the deformation behaviour, structure development and properties of biaxially stretched PET–clay nanocomposites

Shen

Harkin‐Jones

Hornsby

et al. 2011

Composites Science and Technology

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“…With nanoparticle incorporation in a polymer matrix, similarities to confined crystallization (crystallization in nanopores) exist as well as nucleation effects and disruption of attainable spherulite size [140]. A recent review of the crystallization behaviour of layered silicate clay nanocomposites noted that while nucleation is observed in many systems, the overall crystallization rate is generally reduced, particularly at higher levels of nanoclay addition [192]. Another effect of layered silicates and some other nanofillers, such as halloysite nanotubes, observed in polypropylene nanocomposites, is the appearance of -and -crystalline forms under certain crystallization conditions and/or clay content [159,193,194].…”

Section: Polypropylene/clay Nanocomposites -A New Class Of Organic/inmentioning

confidence: 99%

Advances in Polypropylene Based Materials

Bogoeva‐Gaceva

2017

Contributions

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Polypropylene is an extremely versatile thermoplastic polymer known for its good performance/price ratio, excellent heat, moisture and chemical resistance, favorable processing characteristics and recyclability. Due to its universal properties, polypropylene is applied in numerous industrial fields such as electronic and electrical, automobile, textile, pipeline, etc. Furthermore, the progress in its synthesis and property modification in the last decade has contributed to the development of new polypropylene based materials with advanced performance. This review aims at reporting on some recent developments in polypropylene based materials, such as nanofibers, natural fiber reinforced composites, self-reinforced polypropylene and polypropylene/clay hybrids, that have replaced many types of engineering thermoplastics in high-performance applications.

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“…Other properties of nanocomposites are currently the object of much research, and in some cases -an example is that of thermal behavior [39,40] -these investigations have begun to establish new properties that might be exploited such that the nanocomposites can be used for a variety of industrial applications.…”

Section: Properties Of Compositesmentioning

confidence: 99%

Nanocomposites Based on Phyllosilicates: From Petrochemicals to Renewable Thermoplastic Matrices

Coltelli

Coiai

Bronco

et al. 2009

Advanced Nanomaterials

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13 IntroductionPolymer -phyllosilicate nanocomposites, which are characterized by the presence of fi llers that are less than 100 nm in at least one dimension, have been the subject of many reviews and reports during the past decade [1, 2] . The excellent balance between performance and fi ller content (2 -5% by weight of phyllosilicates is suffi cient to provide clear improvements in properties) makes these composites especially interesting as innovative materials for a variety of applications. Such improvements, which include high moduli, increased strength and heat resistance, and decreased gas permeability and fl ammability, can be ascribed to a fundamental feature of polymer nanocomposites, namely that the small size of the fi llers leads to a dramatic increase in interfacial area when compared to traditional composites [3] .Many studies have been initiated by considering conventional petrochemicalderived polymer matrices, such as polyolefi ns, polyamides, and polyesters. Typically, the preparation methods underwent intense examination, the aim being to correlate the structure and morphology of these new nanostructured materials with their ultimate properties.Today, the development of renewable polymeric materials with excellent properties forms the subject of active research interest worldwide [4] , with aliphatic polyesters being among the most promising materials for the production of high -performance, environment -friendly, biodegradable plastics [5] . The need to optimize their properties, in order that in time they can replace present -day commodities, requires the assessment of new, selective, effi cient, and sustainable preparation methods. Hence, a comparative review of the preparation methods for both commodities and renewable polyester -based materials should allow comparisons to be made of these two classes of material in terms of their potential and future opportunities.

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Features, Questions and Future Challenges in Layered Silicates Clay Nanocomposites with Semicrystalline Polymer Matrices

Cited by 35 publications

References 89 publications

The effect of temperature and strain rate on the deformation behaviour, structure development and properties of biaxially stretched PET–clay nanocomposites

The effect of temperature and strain rate on the deformation behaviour, structure development and properties of biaxially stretched PET–clay nanocomposites

Advances in Polypropylene Based Materials

Nanocomposites Based on Phyllosilicates: From Petrochemicals to Renewable Thermoplastic Matrices

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