On the Tribological Behaviour of Micro-Fibrillar Reinforced Composites From Polycondensate/Polyolefin-Blends

Evstatiev, O.; Oster, F.; Friedrich, K.; Fakirov, S.

doi:10.1080/00914030390245820

Cited by 7 publications

(3 citation statements)

References 4 publications

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“…The tribological properties of polycondensate/ polyolefin‐based MFCs were also studied 70. The authors concluded that the wear rates of MFCs isotropized by IM are from two to three times higher than those of CM ones.…”

Section: Mechanical Properties Of Mfcsmentioning

confidence: 99%

Transforming polymer blends into composites: a pathway towards nanostructured materials

Denchev

Dencheva

2007

Polymer International

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Polymer blends and polymer-based composites are two of the most rapidly developing groups of materials being of industrial, as well as of academic, interest. More than a decade ago a new group of polymer materials was introduced, which became known under the name 'microfibrilar composites' (MFCs). They were obtained by the transformation of blends of thermoplastic polymers into micro-or nanostructured systems by combination of appropriate mechanical and thermal treatments. Since then, the importance of these novel materials, both for theory and for engineering practice, has increased significantly. It is an objective of this review to outline the place of MFCs within the whole variety of polymer-based composites. Furthermore, the methods of their preparation, the ways of investigating their structure and the relation of the structure and mechanical properties are discussed. Ultimately, an evaluation of the future trends in this exiting interdisciplinary research field is attempted.

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Section: Mechanical Properties Of Mfcsmentioning

confidence: 99%

Transforming polymer blends into composites: a pathway towards nanostructured materials

Denchev

Dencheva

2007

Polymer International

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“…The result is that the chains of the polymer molecules become very highly aligned, with the polymer bulk possessing vastly improved mechanical properties, such as in Spectra and Tensylon fibers; ii) in-situ fibrillation of polymer blends involves forming high-aspect ratio fibrils made of one polymer, which is oriented in the direction of their length [7][8][9][10][11][12][13][14][15][16] . Their high aspect ratio makes them suitable for efficient load transfer when used as reinforcements.…”

Section: Introductionmentioning

confidence: 99%

Nanofibrillar Polymer-Polymer and Single Polymer Composite Involving Poly(Butylene Terephthalate): Preparation and Mechanical Properties

Panamoottil¹,

Bhattacharyya²,

Fakirov³

2013

Polymer-Plastics Technology and Engineering

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Nanofibrillar composites (NFCs) of polypropylene (PP) and poly(butylene terephthalate) (PBT) were produced with PBT as reinforcement. The two polymers were melt-blended, extruded and cold-drawn via necking in order to convert PBT into a nanofibrillar state. The drawn blend was used for manufacture of NFCs via compression moulding. PBT fibrils were isolated by selective dissolution of PP, and used to produce single polymer composites (SPCs), using a one-constituent approach (hot compaction), and a two-constituent approach (film stacking). NFCs and SPCs were subjected to tensile testing to obtain tensile modulus and tensile strength values. Scanning electron microscopy was used to observe PBT fibrils before and after processing of SPCs, having diameters between 100 and 150 nm. For the SPCs, the improvements in tensile modulus (compared to isotropic PBT) were 32% and 36% for the one constituent and two constituent approach, respectively. The corresponding values for tensile strength were 20% and À18%. NFCs of PP/ PBT showed an improvement of 55% in tensile modulus, and 50.24% in tensile strength as compared to isotropic PP.

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“…The tribological properties of polyolefin matrices reinforced by PET or PA6,6 were also studied [23]. It was established that the reinforcement with PA6,6 fibrils leads to higher wear resistance in comparison to PET in MFC with the same matrix material.…”

Section: Introductionmentioning

confidence: 99%

Mechanical properties of polyamide 6 reinforced microfibrilar composites

et al. 2011

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ABSTRACT:The mechanical behavior of microfibrilar composites (MFC), consisting of a matrix of high-density polyethylene (HDPE) and reinforcement of polyamide 6 (PA6) fibrils, with and without compatibilization, was studied. The composites were produced by conventional processing techniques with various shape and arrangement of the PA6 reinforcing entities: long, unidirectional, or crossed bundles of fibrils (UDP and CPC, respectively), middlelength, randomly oriented bristles (MRB), or non-oriented micrometric PA6 spheres (NOM). The tensile, flexural, and impact properties of the MFC materials (UDP, CPC, and MRB) were determined as a function of the PA6 reinforcement shape, alignment and content, and compared with those of NOM, the non-fibrous composite.It was concluded that the in-situ MFC materials based on HDPE/PA6 blends display improvements in the mechanical behavior when compared with the neat HDPE matrix, e.g., up to 33% for the Young modulus, up to 119% for the ultimate tensile strength, and up to 80% for the flexural stiffness. POLYMER COMPOSITES 32:407-417, 2011.

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On the Tribological Behaviour of Micro-Fibrillar Reinforced Composites From Polycondensate/Polyolefin-Blends

Cited by 7 publications

References 4 publications

Transforming polymer blends into composites: a pathway towards nanostructured materials

Transforming polymer blends into composites: a pathway towards nanostructured materials

Nanofibrillar Polymer-Polymer and Single Polymer Composite Involving Poly(Butylene Terephthalate): Preparation and Mechanical Properties

Mechanical properties of polyamide 6 reinforced microfibrilar composites

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