Sinar Arzuria Adnan, Ts.
http://dspace.unimap.edu.my:80/xmlui/handle/123456789/34413
This page provides access to scholarly publications by UniMAP Faculty members and researchers.2024-03-28T13:57:51ZAluminium/floral foam laminated composites under flexural and compression test
http://dspace.unimap.edu.my:80/xmlui/handle/123456789/35576
Aluminium/floral foam laminated composites under flexural and compression test
Sinar Arzuria, Adnan; Nurfarahain, Dzainal; Firuz, Zainuddin, Dr.; Nur Azni, M. A.
This study is concerned on evaluation of laminated composites of aluminium (Al) sheet and floral foam (FF) under flexural and compression test. Effect of different layers of Al/FF laminated composites was evaluated. Epoxy and hardener was used as the adhesive to bind the surface between the Al sheet and FF. The information on the functional group that exists in FF during the formation of the foam was verified by Fourier Transform Infrared Spectroscopy (FTIR) analysis. From flexural and compression test, the mechanical properties decreased with the increasing number of layers of Al/FF laminated composites. The load cannot be distributed uniformly across the composite layer thus results in failure. Optical Microscope (OM) was used to see the adhesion between the layers of Al/FF laminated composites. One layer (1L) of Al/FF shows good adhesion while for four layer (4L) of the composites show phase separation and the excess adhesive around the interface. This shows that the adhesion between the layers also contribute to the failure of the laminated composite. FTIR analysis shows that the FF consists of amine group (at 3587.95 cm-1), alcohol group (at 3305.35 cm-1) and alkyl group (>900 cm-1) which is the main functional group found in polyurethane foam.
Link to publisher's homepage at http://www.ttp.net/
2014-04-01T00:00:00ZCharacterization and mechanical properties of biomass polyurethane
http://dspace.unimap.edu.my:80/xmlui/handle/123456789/34415
Characterization and mechanical properties of biomass polyurethane
Nur Azni, M. A.; Sinar Arzuria, Adnan; Firuz, Zainuddin, Dr.
In this work, turmeric (Curcuma Longa) and henna (Lawsonia inermis) has been used as filler to rigid polyurethane (PU) foam. Characterization and mechanical properties of biomass polyurethane has been investigated using free rise density and compression test. The percentages of fillers were varied from 2 to 10% by weight. PU foam was prepared by reaction of natural oil polyol and isocyanate with a ratio of 1 to 1.1 by weight. The mixture was stirred with 2000 rpm and was poured into the mould when mixture starting to expand. Free rise density (FRD) by stirring polyol and isocyanate in paper cup according to ASTM standard. FRD of foam will be increase when increasing filler loading. Mechanical properties of foams were evaluated using uniaxial compression test to determine compression strength of composites. Compression strength of PU/henna(H) shows the highest strength while PU/turmeric(T) is the lowest. PU/H have highest compression when filler loading increase to 6 percent and decrease with next formulation which is 8 and 10 percent due to agglomeration. Eventhough PU/T have low compression strength, the trend of compression strength is vary from PU/T which showing the optimum strength at 2 percent of filler loading.
Link to publisher's homepage at http://www.aensiweb.com
2013-10-01T00:00:00ZThe effect of chemical modification on properties of polypropylene/bagasse fiber composites compounding using two roll mill
http://dspace.unimap.edu.my:80/xmlui/handle/123456789/34414
The effect of chemical modification on properties of polypropylene/bagasse fiber composites compounding using two roll mill
Sinar Arzuria, Adnan; Sea, B. I.; Yusrina, Mat Daud
This study is concerned on chemical modification of bagasse fiber (BF) filled polypropylene (PP) composites compounding using two roll mill. The fibers were chemically modified with different chemical treatment (alkaline, acetic acid and silane coupling agent). Effect of chemical modification towards BF/PP composites was evaluated by tensile test and flexural test. The chemical modification efficiency was verified by Fourier Transform Spectrometer (FTIR) analysis. From FTIR analysis, there is an increase on intensity on acetyl group (C-H) indicated the existing of chemical bonding between PP and BF. Chemical modified composites increased the mechanical behavior. Composites that modified with acetylation (acetic acid) shows better mechanical properties compared to others.
Link to publisher's homepage at http://www.scientific.net/
2013-03-01T00:00:00ZEffect of carbon nanotubes on the compression test and energy absorption of aluminium/polyurethane-carbon nanotubes foam sandwich
http://dspace.unimap.edu.my:80/xmlui/handle/123456789/33709
Effect of carbon nanotubes on the compression test and energy absorption of aluminium/polyurethane-carbon nanotubes foam sandwich
Sinar Arzuria, Adnan; Siti Nursyafiqah, Samsudin; Firuz, Zainuddin; Nur Azni, Azizan; Hazizan, Md Akil; Sahrim, Hj Ahmad, Prof. Dr.
The foam was prepared by mixing the polyols, isocyanate and carbonnanotubes (CNTs) at 1000 rpm speed. The different content of the CNTs are varies from 0 3 (0, 0.5, 1.5, 2.0, 2.5, 3.0) percent by weight. The foam sandwich was prepared by using hand lay-up method with epoxy and hardener as the adhesive to bind the surface between Polyurethane (PU) - CNTs and Aluminium (Al) sheet. The effect of different CNTs content was studied on the compression test and energy absorption. The compression test results show fluctuated values with increasing percentage of CNTs in PU foam. This trend may due to particles agglomeration as the nanosize of CNTs can make the particles to agglomerate easily due to the strong adhesive force between the nanoparticles. The size of the CNTs particles might not similar thus it is believed that the distribution of the particles were not well. Increasing in percentages of CNTs in PU foam found to improve the energy absorption from 0.115 J for control PU foam to 0.140 J for PU-CNTs foam with 3% CNTs.
Link to publisher's homepage at http://www.ttp.net/
2014-01-01T00:00:00Z