Mechanical and Thermal Properties of PMMA with Al2O3 Composite Films

2011 ◽  
Vol 3 (6) ◽  
pp. 455-456
Author(s):  
Anita Anita ◽  
◽  
Basavaraja Sannakki
Keyword(s):  
Thermal Properties ◽  
Composite Films ◽  
Mechanical And Thermal Properties ◽  
Al2o3 Composite

Influence of extrusion screw speed on the properties of halloysite nanotube impregnated polylactic acid nanocomposites

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Chaitra Venkatesh ◽  
Yuanyuan Chen ◽  
Zhi Cao ◽  
Shane Brennan ◽  
Ian Major ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Lactic Acid ◽  
Thermal Properties ◽  
Composite Films ◽  
Polymer Melt ◽  
Poly Lactic Acid ◽  
Mechanical And Thermal Properties ◽  
Screw Speed ◽  
Halloysite Nanotube ◽  
The Past

Abstract Poly (lactic acid)/halloysite nanotube (PLA/HNT) nanocomposites have been studied extensively over the past few years owing to the interesting properties of the polymer, PLA, and the nanoclay, HNT, individually and as composites. In this paper, the influence of the screw speed during extrusion was investigated and was found to have a significant impact on the mechanical and thermal performance of the extruded PLA/HNT nanocomposites. To determine the effect of screw speed on PLA/HNT nanocomposites, 5 and 10 wt% of HNTs were blended into the PLA matrix through compounding at screw speeds of 40, 80, and 140 rpm. Virgin PLA was compounded for comparison. The resultant polymer melt was quench cooled onto a calendar system to produce composite films which were assessed for mechanical, thermal, chemical, and surface properties. Results illustrate that in comparison to 40 and 80 rpm, the virgin PLA when compounded at 140 rpm, indicated a significant increase in the mechanical properties. The PLA/HNT 5 wt% nanocomposite compounded at 140 rpm showed significant improvement in the dispersion of HNTs in the PLA matrix which in turn enhanced the mechanical and thermal properties. This can be attributed to the increased melt shear at higher screw speeds.

Thiamine hydrochloride (vitamin B1) as modifier agent for TiO2 nanoparticles and the optical, mechanical, and thermal properties of poly(vinyl chloride) composite films

RSC Advances ◽  
2016 ◽  
Vol 6 (95) ◽  
pp. 92596-92604 ◽  
Author(s):  
Shadpour Mallakpour ◽  
Marzieh Adnany Sadaty
Keyword(s):  
Optical Properties ◽  
Thermal Properties ◽  
Tio2 Nanoparticles ◽  
Vinyl Chloride ◽  
Composite Films ◽  
Vitamin B1 ◽  
Thiamine Hydrochloride ◽  
Mechanical And Thermal Properties ◽  
Poly Vinyl Chloride

In the present investigation, TiO2 nanoparticles (NPs) were used for improving the thermal, mechanical and optical properties of poly(vinyl chloride) (PVC) matrix.

scholarly journals Dielectric, mechanical and thermal properties of all-organic PI/PSF composite films by in situ polymerization

e-Polymers ◽  
2020 ◽  
Vol 20 (1) ◽  
pp. 226-232 ◽  
Author(s):  
Peng Li ◽  
Jiajun Yu ◽  
Shaohua Jiang ◽  
Hong Fang ◽  
Kunming Liu ◽  
...  
Keyword(s):  
Thermal Properties ◽  
In Situ Polymerization ◽  
Composite Films ◽  
Dielectric Materials ◽  
Mechanical Analysis ◽  
Dielectric Measurement ◽  
Mechanical And Thermal Properties ◽  
High Dielectric Materials ◽  
High Dielectric

AbstractAll-organic high dielectric materials are highly required in the field of modern electronic industry and energy storage. In this work, all-organic polyimide/polysulfone composite films with different amounts of PSF (PI/PSF-X) were prepared by in situ polymerization followed by film casting and thermal treatment. The dielectric, mechanical and thermal properties of these PI/PSF-X composite films are characterized by dielectric measurement, tensile test, thermogravimetric analysis and dynamic mechanical analysis. The results suggest that the PI/PSF-X composite films have good dielectric properties, good mechanical properties and excellent thermal properties, which are suitable for applications in electronic devices in harsh environments, especially in high-temperature environments.

The effect of carbon nanotubes-grafted lactide on the mechanical and thermal properties of poly (lactic acid) biocomposites

2017 ◽  
Vol 36 (9) ◽  
pp. 655-666 ◽  
Author(s):  
Gaihong Wu ◽  
Shuqiang Liu ◽  
Xiongying Wu ◽  
Xuemei Ding
Keyword(s):  
Carbon Nanotubes ◽  
Lactic Acid ◽  
Thermal Properties ◽  
Composite Films ◽  
Poly Lactic Acid ◽  
Mechanical And Thermal Properties ◽  
Wide Range ◽  
Ft Ir ◽  
The Fourier Transform ◽  
Flexible Fabrication

Poly(lactic acid) (PLA) derived from renewable crops is a promising substitute for petroleum-based products. Although PLA exhibits positive features, it also possesses drawbacks, such as brittleness, which hinder its extension in specific applications. In this study, lactide (LA) was used to graft carbon nanotubes (CNTs) to reinforce PLA. Under catalysis, LA was polymerized into PLA through ring-opening polymerization and simultaneously was grafted onto CNTs to obtain CNTs modified by LA (LA/CNTs). And the modified CNTs were used to prepare PLA composite films (LA/CNTs/PLA). Analysis of the Fourier transform infrared spectra (FT-IR) of the modified CNTs indicated that LA was grafted with the nanotubes. The scanning electron microscopy images showed that the modified CNTs were compatible and homogeneously dispersed in the PLA matrix. The excellent dispersibility and compatibility of the CNTs led to good interfacial adhesion, which directly enhanced the mechanical properties of PLA. The addition of CNTs also improved the thermal properties of PLA. This research aims to ameliorate the mechanical and thermal properties of PLA and provides basis for flexible fabrication of bio-based PLA materials for a wide range of applications.

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