Experimental Investigation on the Foaming Dynamics and Cell Microstructure of Polystyrene/Nanosilica/n-Pentane Nanocomposites

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

ZAREI MEHDI; REZAEI MOSTAFA; SALEHI MOSTAFA

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Journal of Science and Technology of Composites Year:2018 | Volume:5 | Issue:2 Page(s): 289-301

Download Full-Text

Persian Verion

View:

703

Download:

Cites:

Information Journal Paper

Title

Experimental Investigation on the Foaming Dynamics and Cell Microstructure of Polystyrene/Nanosilica/n-Pentane Nanocomposites

Author(s)

ZAREI MEHDI | REZAEI MOSTAFA | SALEHI MOSTAFA | Issue Writer Certificate

Keywords

Foaming dynamicsQ1

Polystyrene/nanosilicaQ1

nanocompositesQ1

N-PentaneQ1

Cell densityQ1

Bubble growthQ1

Abstract

In this study the Foaming dynamics and cell microstructure of polystyrene (PS) and Polystyrene/nanosilica nanocomposites containing N-Pentane foaming agent were investigated. In order to evaluate the nucleation and growth of bubbles in samples, in-situ microscopic observation method was used, and their foaming process in a discontinuous system was investigated. nanocomposites were prepared by solution mixing method and their rheological properties were determined by rheological test. The contact angle method was used surface tension measurements. Incorporating of nanosilica into PS matrix decreased the contact angle and increased the surface tension of the samples. In order to investigate the Foaming dynamics of samples, sheets with thickness of 200 μ m were saturated in a high temperature and pressure chamber. Foaming dynamics was studied by the designed system. The temperature effect on the Foaming dynamics was investigated in the samples containing of 3 %wt. N-Pentane. Although the nucleation and growth rate of bubbles with temperature increasing from 140 to 160 º C has almost been doubled, but broader cell size distribution was observed. In nanocomposite samples the nucleation has been increased compared to polystyrene, and the onset of nucleation has been dropped. By increasing N-Pentane content to 5 %wt., the nucleation in nanocomposite samples was significantly increased compared to polystyrene. For further investigation of the final microstructure of foams, scanning electron microscopy (SEM) images were prepared and the results showed that silica nanoparticles have generated more uniform cells in the final microstructure.

Cites

No record.

References

No record.

Cite

APA: Copy

ZAREI, MEHDI, REZAEI, MOSTAFA, & SALEHI, MOSTAFA. (2018). Experimental Investigation on the Foaming Dynamics and Cell Microstructure of Polystyrene/Nanosilica/n-Pentane Nanocomposites. JOURNAL OF SCIENCE AND TECHNOLOGY OF COMPOSITES (JSTC), 5(2 ), 289-301. SID. https://sid.ir/paper/251719/en

Vancouver: Copy

ZAREI MEHDI, REZAEI MOSTAFA, SALEHI MOSTAFA. Experimental Investigation on the Foaming Dynamics and Cell Microstructure of Polystyrene/Nanosilica/n-Pentane Nanocomposites. JOURNAL OF SCIENCE AND TECHNOLOGY OF COMPOSITES (JSTC)[Internet]. 2018;5(2 ):289-301. Available from: https://sid.ir/paper/251719/en

IEEE: Copy

MEHDI ZAREI, MOSTAFA REZAEI, and MOSTAFA SALEHI, “Experimental Investigation on the Foaming Dynamics and Cell Microstructure of Polystyrene/Nanosilica/n-Pentane Nanocomposites,” JOURNAL OF SCIENCE AND TECHNOLOGY OF COMPOSITES (JSTC), vol. 5, no. 2 , pp. 289–301, 2018, [Online]. Available: https://sid.ir/paper/251719/en

Related Journal Papers