Thermal and Morphological Characterization of Nanocomposites Prepared by in-Situ Polymerization of High-Density Polyethylene on Carbon Nanotubes

2007 ◽  
Vol 40 (17) ◽  
pp. 6268-6276 ◽  
Author(s):  
M. Trujillo ◽  
M. L. Arnal ◽  
A. J. Müller ◽  
E. Laredo ◽  
St. Bredeau ◽  
...  
2021 ◽  
pp. 096739112110178
Author(s):  
Fu-An He ◽  
Li-Ming Zhang

Multi-walled carbon nanotubes (MWCNTs)/high density polyethylene (HDPE) composites were prepared by a masterbatch method (mPEC) in which a commercial HDPE was blended with a MWCNTs/HDPE masterbatch obtained from in situ polymerization. Owing to the interfacial interaction, a 13 cm−1 up-shift of the G band for the MWCNTs was observed in the Raman spectrum of the MWCNTs/HDPE masterbatch and the homogeneous distribution of MWCNTs in the mPEC was realized. Compared to the pure HDPE and the MWCNTs/HDPE composites prepared by a direct melt-blending method (dPEC), the mPEC had better electrical, mechanical and rheological properties, suggesting that the in situ polymerized HDPE covering on the MWCNTs surfaces played an important role in the reinforcing effects as an interfacial modifier. The tensile yield strength and the Young’s modulus of the mPEC containing 3 wt% MWCNTs (mPEC3), and the flexural strength and the flexural modulus of the mPEC containing 1 wt% MWCNTs were improved by 38.3%, 41.7%, 24.4%, and 42.9%, respectively, compared to those of the pure HDPE. For, the electrical resistivity of mPEC3 was decreased by about three orders of magnitude relative to that of the pure HDPE. The | η*|, G′, and G″ of the mPEC were obviously higher than those of pure HDPE. Moreover, the polyethylene-modified MWCNTs obtained from in situ polymerization could facilitate the crystallization of the HDPE macromolecular chains more effectively compared to the unmodified MWCNTs.


2018 ◽  
Vol 16 ◽  
pp. 232-241 ◽  
Author(s):  
Antonio Cruz-Aguilar ◽  
Dámaso Navarro-Rodríguez ◽  
Odilia Pérez-Camacho ◽  
Salvador Fernández-Tavizón ◽  
Carlos Alberto Gallardo-Vega ◽  
...  

Polymer ◽  
2005 ◽  
Vol 46 (14) ◽  
pp. 5125-5132 ◽  
Author(s):  
Chungui Zhao ◽  
Guanjun Hu ◽  
Ryan Justice ◽  
Dale W. Schaefer ◽  
Shimin Zhang ◽  
...  

2013 ◽  
Vol 298 (12) ◽  
pp. 1269-1274 ◽  
Author(s):  
Belkhiri Kaouache ◽  
Frédéric Addiego ◽  
Jean-Marie Hiver ◽  
Olivier Ferry ◽  
Valérie Toniazzo ◽  
...  

Author(s):  
Giovani Pavoski ◽  
Renan Kalikoski ◽  
Gustavo Souza ◽  
Daniel Baldisserotto ◽  
Luiz Fernando Brum ◽  
...  

2020 ◽  
Vol 44 (6) ◽  
pp. 399-406
Author(s):  
Gayatri Uppalapati ◽  
Srinivasarao Gunji ◽  
Ramakrishna Malkapuram

In this paper research was expanded on waste that can be recycled. There are so many different types of waste products available in our country that would ruin the environment. Three different products are considered to reduce some of the problems among them two are fibers and the other is polyethylene. Chicken feather rachis and Neem sawdust are the two different fibers and the reinforced material is high density polyethylene (HDPE). These materials are made as seven different compositions to find the ability of the sample in different characterizations. The seven compositions are 80H-10CF-10SD, 80H-5CF-15SD, 80H-15CF-5SD, 80H-20CF, 70H-30CF, 70H-30SD, 80H-20SD, and these compositions are made in CIPET, Hyderabad by using single screw extruder& strand pelletizer. These granules are prepared with the help of Injection moulding, the samples are examined by various testing to prove the ability, strength, structure of materials in individual, and combination forms. The testing conducted for the samples is that the Morphology of the sample was characterized using FESEM, XRD. It is examined that the ratios are light weight with high strength by using the testings and it gives perfect images without any cracks on the surface and no more defects among these ratios.


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