Solution impregnation of polyethylene fibre/polyethylene matrix composites

Lacroix, F.v.; Werwer, M.; Schulte, Karl

doi:10.1016/s1359-835x(97)00101-2

Cited by 75 publications

(35 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The matrix region could be introduced or made in-situ by a number of means, which include melt= powder-impregnation [4,[29][30][31][32] , hot-compaction [33][34][35][36][37] , filmstacking [31,38,39] and co-extrusion [40][41][42] . The most important factor to look at, though, is that at the elevated temperatures involved in the matrix-forming step, fibers could lose their orientation via molecular relaxation [28] .…”

Section: Single Polymer Compositesmentioning

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

View full text Add to dashboard Cite

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.

show abstract

Section: Single Polymer Compositesmentioning

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

View full text Add to dashboard Cite

show abstract

“…The idea of homocomposites is not new; Capiati and Porter (25) presented the first "one-polymer composite" example by embedding a high modulus PE filament in a block of HDPE in 1975. Later, other researchers have extended this technique and developed the film stacking (26,27), powder impregnation (28) and solvent impregnation (29). In the abovementioned cases, a secondary polymer, besides polymeric fibers, is used as binder or matrix to form the continuous phase.…”

Section: One-polymer Compositesmentioning

confidence: 99%

Matrix Free Ultra-High Molecular Weight Polyethylene Fiber-Reinforced Composites: Process, Structure, Properties and Applications

Farris

2005

ACS Symposium Series

View full text Add to dashboard Cite

A novel process called high-temperature high-pressure sintering coupled with thermoforming was studied and explored to make shapeable matrix free composites by consolidating and molding layers of ultra high molecular weight polyethylene (UHMWPE) fabric at an elevated temperature under pressure. The optimal processing temperature was found to be near the fiber's melting point (150°C). The Process-Structure-Property relationship was investigated to give an in-depth and better understanding of this creative process. Compared to other UHMWPE fiber materials, Spectra ® cloth is shown to be the best material to use this process and make ballistic shields and other high performance products.

show abstract

“…There have been a number of different methods reported for the production of single polymer composites, from the first example, introduced by Capiati and Porter [1], using polyethylene filaments and a polyethylene powder with different melting points, to other techniques such as film stacking, powder and solvent impregnation [2][3][4][5][6], bicomponent tapes with a lower melting point outer layer [7] and compression controlled melting [8]. All of these techniques require a matrix and reinforcing phase that, although of similar chemical composition, are different.…”

Section: Introductionmentioning

confidence: 99%

The effect of draw ratio on the mechanical properties and crystalline structure of single polymer polypropylene composites

Foster

Hine

Ward

2016

Polymer

View full text Add to dashboard Cite

This is a repository copy of The effect of draw ratio on the mechanical properties and crystalline structure of single polymer polypropylene composites. ReuseUnless indicated otherwise, fulltext items are protected by copyright with all rights reserved. The copyright exception in section 29 of the Copyright, Designs and Patents Act 1988 allows the making of a single copy solely for the purpose of non-commercial research or private study within the limits of fair dealing. The publisher or other rights-holder may allow further reproduction and re-use of this version -refer to the White Rose Research Online record for this item. Where records identify the publisher as the copyright holder, users can verify any specific terms of use on the publisher's website. TakedownIf you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing eprints@whiterose.ac.uk including the URL of the record and the reason for the withdrawal request. *Graphical Abstract AbstractThe properties of self-reinforced single polymer composites produced by the Leeds hot compaction process are highly dependent on the compaction temperature as well as the constituent oriented elements used to produce the compacted sheets. In this paper, the variation in tensile mechanical properties of uniaxial hot compacted sheets manufactured from drawn polypropylene (PP) tapes with change in compaction temperature have been investigated, for a range of different draw ratio tapes. It is shown that there is a measureable difference between the optimum compaction temperatures required for obtaining the highest modulus and strength in the compacted sheets. The compaction temperature required to achieve the maximum tensile modulus was seen to increase with increasing draw ratio. The compaction temperature to obtain the maximum tensile strength was found to be both independent of the draw ratio and a few degrees higher than that for obtaining the maximum modulus. Peak modulus and peak tensile strength was shown to be dependent on the draw ratio of the drawn tape. Differential scanning calorimetry measurements on the compacted sheets were also performed in order to investigate the change in crystalline structure with compaction temperature and draw ratio. This has shown that the changes in structure within the oriented phase (i.e. tapes) during the compaction process itself are directly related to the final properties of the hot compacted sheets.

show abstract

Solution impregnation of polyethylene fibre/polyethylene matrix composites

Cited by 75 publications

References 10 publications

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

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

Matrix Free Ultra-High Molecular Weight Polyethylene Fiber-Reinforced Composites: Process, Structure, Properties and Applications

The effect of draw ratio on the mechanical properties and crystalline structure of single polymer polypropylene composites

Contact Info

Product

Resources

About