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RISS 인기검색어
- 검색키워드
- 저자 : M.T.H. Sultan (검색결과 3 건)
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A.M. Noor Azammi,S.M. Sapuan,M.R. Ishak,M.T.H. Sultan 한국섬유공학회 2018 Fibers and polymers Vol.19 No.2
In this paper, natural rubber (NR) was mixed with thermoplastic polyurethane (TPU) and kenaf as filler reinforcement for the polymer composite. Mixing the material using the internal mixer and hot press machine was able to blend the material homogeneously. Investigation of the new polymer composite characterisation was carried out by thermal gravimetric analysis (TGA), along with tensile, flexural and impact tests. The TGA for the polymer composite achieved 322 ℃ before degradation and increase in tensile and impact strength with the increase of TPU in the polymer composite matrices were observed. The result indicated an improvement in tensile, flexural and impact strength for the kenaf filled TPU-NR composites. The mixing of kenaf fibre and TPU-NR polymer showed degradation that was gradually diminishing turned into ashes. TGA result showed all compositions of kenaf filled TPU-NR composites samples shared the same peak temperature, being degraded at 600 ℃.
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J. Naveen,M. Jawaid,E. S. Zainudin,Mohamed T. H. Sultan,R. Yahaya 한국섬유공학회 2019 Fibers and polymers Vol.20 No.8
This research investigated the effect of hybridizing Kevlar/cocos nucifera sheath and the effect of adding differentwt.% of Graphene nanoplatelets (GNP) on the interlaminar shear behaviour of laminated composites. Initially, different wt.% (0,0.25, 0.50, and 0.75) of GNP’s were mixed with epoxy resin through Ultrasonic-sonication. Then the laminated compositeswere fabricated by hand lay-up method followed by hot pressing. The weight ratio of Kevlar (K) and cocous nucifera sheath(CS) are 100/0 (S1), 75/25(S2), 50/50 (S3), 25/75(S4), and 0/100(S5). Interlaminar shear strengths (ILSS) of differentlaminates were evaluated using a short beam shear test. The results revealed that hybrid composites S2 (75/25) possess higherILSS than other laminates in the absence of GNP. Addition of GNP at 0.25 wt.% exhibited higher ILSS in all the laminates(S1 to S5) due to the improved interfacial properties. Further addition of GNP (0.50, and 0.75 wt.%) has declined the ILSS ofthe laminated composites due to aggregation and overlapping of GNP. XRD analysis reveals that at 0.25 wt.% of GNP, all thehybrid composites exhibited higher crystallinity index. Statistical analysis of the results has been performed using one way-ANOVA (Analysis of variance) and it shows that there is a statistically significant difference between the obtainedinterlaminar shear strength of the laminated composites.
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Walid Abotbina,S. M. Sapuan,M.T.H. Sultan,M. F. M. Alkbir,R.A. Ilyas 한국섬유공학회 2023 Fibers and polymers Vol.24 No.2
This work aims to investigate the effect of black seed fiber as a reinforcing material for the fabrication of cornstarch-basedbiocomposite. The casting procedure was applied to fabricate the biocomposite at different concentrations of black seedfiber (3%, 6%, and 9%) and plasticizer mixture of fructose and glycerol set at a proportion of 30% (1:1) for total weight. The biocomposite films were tested in terms of casting procedure physical, tensile, thermal, and morphological properties. Increasing the black seed fiber concentration from 3% to 9% decreased the density and moisture content of the films by15.67% and 29.04%, respectively, and soil burial tests showed that the films became less resistant to biodegradation. Onthe other hand, an increase in tensile strength (40%), Young’s modulus (26%), and crystallinity index (64%) were observedwhen 9% of black seed fiber was added, reflected in a consistent structure and outstanding matrix-reinforcement compatibility. It was also found that reinforced biocomposite exhibited better thermal stability and more intermolecular hydrogenbonding compared to the control film. Overall, the addition of black seed fiber as promising reinforcing material significantlyimproved the performance of the films, which may contribute to the development of the biopolymers industry in responseto both community needs and environmental issues.
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