Studying banded spherulites in HDPE by electron microscopy

Tantry, Sudha and Anantharaman, D and Thimmappa, B H S and Kamalakaran, Radha (2020) Studying banded spherulites in HDPE by electron microscopy. Pplymer Testing, 89. ISSN 0142-9418

[img] PDF
8911.pdf - Published Version
Restricted to Registered users only

Download (2MB) | Request a copy
Official URL:


HDPE is a semi-crystalline thermoplastic polymer, with remarkable physical properties such as high chemical resistivity, high impact strength, and high modulus. Compared to the other semi-crystalline polymers, HDPE mostly possesses a high crystallinity, due to which, it exhibits a unique combination of mechanical and chemical resistance properties. In the present work, we have characterized the crystalline spherulites of neat and formulated HDPE compositions thoroughly characterized by different electron microscopy techniques such as scanning electron microscopy (SEM) and transmission electron microscopy (TEM). One of the critical steps to obtaining well-resolved SEM images is the sample preparation that typically involves the etching process to elucidate the crystalline spherulites. Though such traditional methodology can effectively be used for neat HDPE, it leads to the creation of undesirable experimental artifacts when used to investigate formulated HDPE com�positions. An alternate TEM-based method provides clear images without any artifacts, apart from being a direct and green method and taking relatively a lesser measurement time.

Item Type: Article
Uncontrolled Keywords: Polyolefin HDPE (High-density polyethylene) SEM (Scanning electron microscope) TEM (Transmission electron microscope) Banded spherulites Etching and artifacts
Subjects: Engineering > MIT Manipal > Chemistry
Depositing User: MIT Library
Date Deposited: 29 Jul 2021 05:49
Last Modified: 29 Jul 2021 05:49

Actions (login required)

View Item View Item