Mechanical and physical properties of carbon nano tubes with kevlar fiber reinforced with polyester resin

Marwa Subhi Atallah

doi:10.30723/ijp.v14i31.173

Abstract

In this research study Hardness (shore D), Water absorption,Flexural, Impact Test, and Fracture Toughness of polymer nanocomposites. The polymer nano composites based on unsaturatedpolyester resin reinforced with Kevlar fibers (K.F). The samples areattended by hand lay – up method according to (Rule mixture) forvarious volume fractions of unsaturated polyester resin, fiber andcarbon nanotube. The polyester resin was matrix strengthened with3% volume fraction from Kevlar fiber and (0.5%, 1%, 1.5%, 2%)volume fractions of carbon nanotube. The water absorption, hardness(shore D), flexural test, impact test and toughness fracture propertieswere studied. Results showed that the water absorption increase withvolume fraction increase of fiber with Carbon Nanotube, the sample(polyester+3%K.F+0.5% CNTs) has lower water absorption thanother samples. The hardness (shore D), flexural test, impact test andtoughness fracture for the sample (polyester+3%C.F+0.5% CNTs)has higher value for Nano- composites.

Highlights

Polymer nano composites, which is a new class of polymeric materials based on the reinforcement of polymers using nano fillers, have attracted a great deal of interest in fields ranging from basic science to the industrial applications because it is possible to remarkably improve the physical properties of composite materials at lower filler loading [1, 2]
Result had revealed that the hardness of pure polyester alone was (77 shore D) compared to maximum value (83.5) at volume fraction of
The reason of the increase in hardness is that CNTs contains an elements harder than the pure polyester that lead to an increase in hardness than pure polyester but the hardness decrease with increased volume fraction of carbon nanotube because the CNTs increase elasticity

Summary

Introduction

Polymer nano composites, which is a new class of polymeric materials based on the reinforcement of polymers using nano fillers, have attracted a great deal of interest in fields ranging from basic science to the industrial applications because it is possible to remarkably improve the physical properties of composite materials at lower filler loading [1, 2]. Excellent mechanical strength, thermal conductivity, and electrical properties of CNT have created a high level of activity in materials research and development for potential applications such as fuel cell, hydrogen storage, field emission display, chemical or biological sensor, and advanced polymer nano composites [5, 6]. This feature has motivated a number of attempts to fabricate CNT/polymer nano composites in the development of high-performance composite materials. Prepare nano composites of polyester resin reinforced with Kevlar fiber and carbon nanotube. For each specimen five hardness measurements were taken and the average hardness is calculated

Flexural strength test This test is according to ASTM

Impact test

Results and discussion

Water absorption