| Title |
Improvement of mechanical properties of automotive composite material by matrix modification with rubber particles / |
| Translation of Title |
Automobilių kompozitinių medžiagų mechaninių savybių tobulinimas, modifikuojant matricą su gumos dalelėmis. |
| Authors |
Nagarajan, Thirumuga Karthi |
| Full Text |
|
| Pages |
64 |
| Keywords [eng] |
automotive composite ; core-shell rubber particles ; carbon fibre ; impact testing ; energy absorption |
| Abstract [eng] |
In the current scenario, the transportation sector needs to reduce CO2 emission, improving fuel efficiency and a faster transport network. The most important aspect is to improve fuel efficiency by reducing vehicle weight without sacrificing performance. Research and development played an important role in developing material that is lighter than the conventional materials also give better performance in the properties to make the automobiles more efficient. The composite materials are used in all modes of transport. This project presents an improvement of mechanical properties by matrix modification with the rubber particles for automotive applications. Core-shell rubber particles of Ace MX-125, 156 and 960 were used for the matrix modification. The bulk polymers of epoxy with 3, 6, 10 and 15 wt.% of three CSR particles were tested and compared to find the optimum concentration of the rubber particles for the improvement. The 6 wt.% was selected as the required concentration of the rubber particles. The static tensile test results showed that the Carbon fibre composite with CSR particle (6 wt.%) performs better than the traditional pure epoxy composite. The tensile strength was increased by 38%. The flexural and interlaminar shear properties were tested according to the respected standards. The CSR particles with 6 and 10 wt.% were used. The addition of CSR particles gradually enhances the bending strength and Interlaminar behaviour. In this case, the Ace MX-125 at 6 wt.% slightly affects the bending and ILSS due to the adhesion effect. The other composition with all the three CSR particles improved flexural strength up to 48%. The drop weight impact test was performed. The amount of CSR particles usage was similar to the bending tests. The 10 wt.% of CSR particles modified composite absorbs more than 50% energy absorbed by the pure epoxy composite. |
| Dissertation Institution |
Kauno technologijos universitetas. |
| Type |
Master thesis |
| Language |
English |
| Publication date |
2021 |
