A study on mechanical properties of PBT nano-composites reinforced with microwave functionalized MWCNTs

Polybutylene Terephthalate (PBT) is a synthetic thermoplastic polymer with fast crystallization rate; and is extensively used in many automobile applications where it is prone to continuous wear. Carbon Nanotubes (CNTs) as reinforcements are most ideal and promising reinforcement in enhancing mechan...

Full description

Saved in:
Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2018-04, Vol.346 (1), p.12004
Main Authors: Deshpande, Revati, Naik, Garima, Chopra, Swamini, Deshmukh, Kavita A., Deshmukh, Abhay D., Peshwe, D. R.
Format: Article
Language:English
Subjects:
Crystallites
Crystallization
Dispersion
Elongation
Frictional wear
Functionalization
Mechanical properties
Multi wall carbon nanotubes
MWCNTs
Nanocomposites
Nucleation
PBT
Polybutylene terephthalates
Polymers
Scuffing
Sliding friction
Tensile
Tensile strength
Tribology
Wear
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Polybutylene Terephthalate (PBT) is a synthetic thermoplastic polymer with fast crystallization rate; and is extensively used in many automobile applications where it is prone to continuous wear. Carbon Nanotubes (CNTs) as reinforcements are most ideal and promising reinforcement in enhancing mechanical properties of polymers. Owing to strong van der Waals' interaction between the nanotubes; they tend to aggregate. To overcome this behavior, CNTs are generally functionalized in acid solutions to help stabilize the dispersion and allow interaction with polymer matrix. Thus, the present study focuses on the effect of reinforcing microwave-functionalized CNTs on the mechanical and tribological properties of PBT polymer matrix. The homogenous dispersion of CNTs in PBT matrix was successfully achieved by functionalizing the CNTs. DSC and XRD analysis confirms better crystallization and reduced crystallite size due to improved nucleation. Apart; an increase in the hardness and MFI value was also noted, which again hinted towards improved dispersion. However, the reduction in tensile strength and % elongation indicated embrittlement of the PBT matrix after addition of functionalized CNTs. Furthermore, the peeling and scuffing phenomenon observed for virgin PBT, during sliding wear, was suppressed after CNT addition.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/346/1/012004