Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Rubber wood, coconut shells and fabrics

08.06.2012
Opening a way to a new hybrid composite, Mohd Iqbal Misnon and collaborators of UiTM Shah Alam, Malaysia tested hybrid composites made of rubberwood, coconut shell and textile fabrics (woven cotton and polyester fabrics).

Each of the hybrid composite fabricated: Cotton fabric reinforced hybrid composite (CtRHC) and Polyester fabric reinforced hybrid composite (PeHC), was reinforced with two, three and four layers cotton or polyester. The control samples were the composite without any textile fabric reinforcement.

Flexural strength, impact strength, water absorption and thickness swelling tests were conducted to determine the mechanical and physical properties of the fabricated hybrid composites respectively.

It was found that the flexural strength of these fabrics reinforced hybrid composites improved as compared to the control sample, which was without textile fabric. The result of flexural modulus of the hybrid composite fabricated demonstrated similar trend with its flexural strength. The flexural modulus of the hybrid composites improved with the presence of textile fabrics. Samples reinforced with textile fabrics exhibited higher values than the control sample. The reinforcement with 4 layers of textile fabric tended to decrease the flexural modulus slightly.

On the other hand, the composite materials have good properties if the substances are strongly bonded with each other. Nevertheless, the polyester fabric does not adhere well with rubberwood and coconut shell mixture. This makes this material system relatively not strong. The delimitation also indicated that the compression load was not effectively transferred from rubberwood and coconut mixture to the polyester fabrics. It is believed that the PeHC sample could have a better flexural strength than CtHC, if the PeHC sample performed good adhesion in their system.

Overall, the cotton and polyester hybrids recorded a higher impact energy than the control sample. The impact load had distributed effectively due to good adhesion between the cotton fabric with the rubberwood and coconut shell particles.

The samples also exhibited better impact damage tolerance. Fibre failure turned smaller as the number of fabric layers increased, indicating that a higher PeHC system can absorb the impact energy.
Again, it is believed that the polyester hybrid composite could have better impact properties if the polyester performs good surface adhesion with the rubber wood and coconut particles. Another factor that contributes to higher impact properties is the properties of polyester fabric itself. Polyester fabric is known to have good elongation between 30 – 40% and this property makes the hybrid composites more ductile and able to withstand impact.

The results of flexural and impact tests showed that the mechanical properties of this new fabricated hybrid composites were better than the control sample.

The cotton fabric reinforced hybrid composite samples had better flexural but lower impact strength in comparison with the polyester reinforced hybrid composites. All newly fabricated hybrid composites also recorded to have a lower water absorption than the control sample.

The cotton hybrid showed lower water absorption than the polyester hybrid due to poor adhesion between polyester and urea formaldehyde. Both types of hybrid composite showed higher values than the control in thickness swelling.

In short, polyester strengthened with particles of rubber wood and coconut shell is stronger than the normal ones.

Information Contacts:

Mohd Iqbal Misnon
Wan Yunus Wan Ahmad
M.I. Ab Kadir
M. Atiyyah
Department of Textile Technology

S.A. Bahari
Department of Bio-Composite Technology
UiTM Shah Alam

texiqbal@salam.uitm.edu.my

Megawati Omar | Research asia research news
Further information:
http://inforec.uitm.edu.my
http://www.researchsea.com

More articles from Materials Sciences:

nachricht Freiburg researcher investigate the origins of surface texture
17.02.2020 | Albert-Ludwigs-Universität Freiburg im Breisgau

nachricht Understanding Metal Ion Release from Hip Implants
17.02.2020 | Max-Planck-Institut für Eisenforschung GmbH

All articles from Materials Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Freiburg researcher investigate the origins of surface texture

Most natural and artificial surfaces are rough: metals and even glasses that appear smooth to the naked eye can look like jagged mountain ranges under the microscope. There is currently no uniform theory about the origin of this roughness despite it being observed on all scales, from the atomic to the tectonic. Scientists suspect that the rough surface is formed by irreversible plastic deformation that occurs in many processes of mechanical machining of components such as milling.

Prof. Dr. Lars Pastewka from the Simulation group at the Department of Microsystems Engineering at the University of Freiburg and his team have simulated such...

Im Focus: Skyrmions like it hot: Spin structures are controllable even at high temperatures

Investigation of the temperature dependence of the skyrmion Hall effect reveals further insights into possible new data storage devices

The joint research project of Johannes Gutenberg University Mainz (JGU) and the Massachusetts Institute of Technology (MIT) that had previously demonstrated...

Im Focus: Making the internet more energy efficient through systemic optimization

Researchers at Chalmers University of Technology, Sweden, recently completed a 5-year research project looking at how to make fibre optic communications systems more energy efficient. Among their proposals are smart, error-correcting data chip circuits, which they refined to be 10 times less energy consumptive. The project has yielded several scientific articles, in publications including Nature Communications.

Streaming films and music, scrolling through social media, and using cloud-based storage services are everyday activities now.

Im Focus: New synthesis methods enhance 3D chemical space for drug discovery

After helping develop a new approach for organic synthesis -- carbon-hydrogen functionalization -- scientists at Emory University are now showing how this approach may apply to drug discovery. Nature Catalysis published their most recent work -- a streamlined process for making a three-dimensional scaffold of keen interest to the pharmaceutical industry.

"Our tools open up whole new chemical space for potential drug targets," says Huw Davies, Emory professor of organic chemistry and senior author of the paper.

Im Focus: Quantum fluctuations sustain the record superconductor

Superconductivity approaching room temperature may be possible in hydrogen-rich compounds at much lower pressures than previously expected

Reaching room-temperature superconductivity is one of the biggest dreams in physics. Its discovery would bring a technological revolution by providing...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

70th Lindau Nobel Laureate Meeting: Around 70 Laureates set to meet with young scientists from approx. 100 countries

12.02.2020 | Event News

11th Advanced Battery Power Conference, March 24-25, 2020 in Münster/Germany

16.01.2020 | Event News

Laser Colloquium Hydrogen LKH2: fast and reliable fuel cell manufacturing

15.01.2020 | Event News

 
Latest News

Gold nanoclusters: new frontier for developing medication for treatment of Alzheimer's disease

17.02.2020 | Life Sciences

Artificial intelligence is becoming sustainable!

17.02.2020 | Information Technology

Catalyst deposition on fragile chips

17.02.2020 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>