Morphology of PA6 nanocomposites prepared by pressurized insertion of aqueous nanoparticle dispersions

Hassinger, Irene; Gurka, Martin

doi:10.1179/2055033215y.0000000002

Cited by 6 publications

(3 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Intercalation by melt extrusion is an important processing technique as it has been proven to be the most economical in terms of its feasibility in upscaling to industrial scale [20]. Melt extrusion is the most widely adopted method to disperse carbon nanotubes in polymers such as HDPE for commercial applications [21][22][23]. Song and coworkers reported that the addition of nanofillers with different dimensional characteristics influenced the melt extrusion behavior of HDPE [21].…”

Section: Introductionmentioning

confidence: 99%

Observations of a novel strengthening mechanism in HDPE nanocomposites

Okolo

2018

Nanocomposites

View full text Add to dashboard Cite

Previous strengthening mechanisms described in literature for high density polyethylene (HDPE) carbon nanotubes composites are typical of those observed in fibre reinforced polymeric micro composites. Here, we present a new molecular level strengthening mechanism based on HDPE carbon nanotubes composite, which has not been reported before to the best of authors' knowledge. The HDPE nanocomposite was produced by melt intercalation technique via twin-screw extrusion. Thereafter, the samples were subjected to mechanical tensile tests and scanning electron microscope (SEM) examination. Carbon nanotubes (CNTs) were found to be disentangled from the polymer molecules after yielding and prior to breaking. SEM and optical microscopic observations revealed visible black agglomerate bands at 45 appeared after yielding and prior to the breaking of the ductile HDPE. It was observed that CNTs were pushed out from the intricate mechanical interlocking with the thermoplastic polymeric chains of HDPE during strain hardening. ARTICLE HISTORY

show abstract

Section: Introductionmentioning

confidence: 99%

Observations of a novel strengthening mechanism in HDPE nanocomposites

Okolo

2018

Nanocomposites

View full text Add to dashboard Cite

show abstract

“…Additionally, the BaSO 4 nanoparticles tended to agglomerate within the PVC matrix due to their large specific surface area, high surface energy, and unstable state. 30,31 The formation of agglomerates resulted in localized stress concentration points, which adversely affected the mechanical properties, 32 which will be discussed later.…”

Section: Sem Analysis Of Pvc/baso 4 Compositesmentioning

confidence: 99%

Development of reflective cooling plasticized polyvinyl chloride/precipitated barium sulfate composites for building roof applications throughout entire solar wavebands

Han,

Yang,

Zhang

et al. 2023

Vinyl Additive Technology

View full text Add to dashboard Cite

Barium sulfate (BaSO4) has high reflectance throughout entire solar waveband (280–2500 nm). In this study, the melt blending method was used to incorporate BaSO4 into a plasticized polyvinyl chloride (PVC) matrix. The aim was to create composites that exhibit excellent reflective cooling performance in the solar waveband, specifically for use in building roofs. By increasing the content of BaSO4 from 0 to 200 phr, the total reflectance of the samples in the solar waveband showed significant improvement, rising from 6% to 48.8%. Furthermore, the thermal conductivity of the samples accordingly emerged apparent enhancement, increasing by 46.3% from 0.178 to 0.262 W m−1 K−1. Additionally, when subjected to irradiation by a solar simulator under a solar light intensity of 1000 W/m2 for 1 h, the indoor simulated irradiation temperature decreased from 41.4 to 27.4°C.Highlights White plasticized polyvinyl chloride (PVC) films with reflective cooling performance were prepared. The solar reflectance and cooling performance of PVC was enhanced by BaSO4. The reflectance mechanism of BaSO4 in PVC was established.

show abstract

“…Interestingly the peer-reviewed articles presented in this second issue of Nanocomposites follow these new strategic orientations and provide some original approaches paving the way to novel materials with significant improvements in terms of crystallization behaviour (see paper by M. Murariu et al 3 ), nanofiller dispersion ability (see papers by I. Hassinger and M. Gurka 4 , and by Y. Kobayashi et al 5 ), thermo-mechanical (paper by Ch. Sellam et al 6 ), gas barrier (see paper by J.F.…”

mentioning

confidence: 97%

Editorial

Dubois

2015

Nanocomposites

View full text Add to dashboard Cite

As Associate Editor of Nanocomposites, it is my great pleasure and honor to introduce this second issue. Clearly the following articles perfectly highlight how versatile and rich the field of nanocomposites can be. It is currently accepted that a nanocomposite material can be viewed as a heterophasic system where the dispersed phase (of a different nature to the continuous phase) has at least one of its dimensions in the order of a few nanometers. The continuous phase, usually called matrix, can be metallic, ceramic or polymeric, while the dispersed phase, i.e. nanofiller, can present 1, 2 or 3 nanodimensions. However, a keyquestion remains: what is a nanofiller? A filler with nanodimensions, in other words, a nanomaterial?On 18 October 2011, the European Commission adopted a specific recommendation on the definition of a nanomaterial.

show abstract

Morphology of PA6 nanocomposites prepared by pressurized insertion of aqueous nanoparticle dispersions

Cited by 6 publications

References 23 publications

Observations of a novel strengthening mechanism in HDPE nanocomposites

Observations of a novel strengthening mechanism in HDPE nanocomposites

Development of reflective cooling plasticized polyvinyl chloride/precipitated barium sulfate composites for building roof applications throughout entire solar wavebands

Editorial

Contact Info

Product

Resources

About