Materials Literature
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Polycaprolactone (PCL) polyol was prepared by a ring opening polymerization of ε-caprolactone initiated by palm kernel oil (PKO) based polyol and 1,6-hexanediol to form a PCL/PKO based polyol. The properties of polyol were varied by their initiator:co-initiator weight ratio. The completion of polyol formation was char…
This study shows the effect of using 3-aminopropyltriethoxysilane (APS) and maleic anhydride-grafted polypropylene (MAPP) as coupling agent on composite of RPP/MCC fiber. The compositions of MCC were varied from 0, 2, 4, 8 and 12 wt%. The compounded samples were prepared into test specimens by using injection moulding…
We analyzed light intensity distributions in a subwavelength fluorescent film, which was excited by a focused electron beam. We have developed an analyzing method using Monte Carlo simulation and the finite-difference time-domain (FDTD) method. Electron scattering and trajectories were calculated by Monte Carlo simula…
We have studied the influence of SHS aluminum nitride content (5–15%) and particle size on the fabrication conditions (hot pressing in a nitrogen atmosphere) of Si3N4-based ceramics containing CaO-Al2O3-AlN sintering aids. The results demonstrate that the reaction of Si3N4 with a eutectic calcium aluminate mixture dur…
Abstract In this study, poly(methylphenylsiloxane) (PMPS) and phenylene‐silica based hybrid material with interpenetrating networks was prepared by a two‐step sol–gel process. Firstly, in the presence of H 2 SO 4 , the phenylene‐silica was formed as sol particles with high branching degree by cohydrolysis and condensa…
Graphene emitters with high enhancement factor and ultra low emission field were exfoliated from carbon fibers in carbon cloth. This method made the graphene sheets to stay on the carbon fiber and were used, in situ, as emitters. Due to their high multistage enhancement factor and intrinsic good contact, electron emis…
Vibrational properties of iron-chalcogenide superconductor K${}_{0.75}$Fe${}_{1.75}$Se${}_{2}$ with ${T}_{c}\phantom{\rule{0.16em}{0ex}}\ensuremath{\sim}$ 30 K have been measured by Raman and optical spectroscopies over the temperature range 3--300 K. The sample undergoes $I4/m\ensuremath{\rightarrow}I4$ structural ph…
Abstract Enzyme breakers have been previously used for hydrolyzing guar gels at temperatures below 150°F. There is an industry-wide demand for enzyme breakers that can function under higher temperature (200-250°F) and extreme pH (≥10.5) conditions. To fill this gap, Verenium Corporation has developed an exceptionally…
Characterisation of liquid crystals (LCs) as solvents is needed, to obtain the polarity and solvatochromic polarity parameters of these media. Polarity parameters demonstrate the effects of LC media on the photo-physical behaviour of solute molecules in an anisotropic medium. The practical limitations in determining s…
In this Article, the validity of a model derived for crystal growth rates and supersaturation for solids crystallized from solutions of materials containing multiple conformers is evaluated. A simple and straightforward method for determining crystal growth rates using FBRM and FTIR/ATR is utilized, which leads to a l…
Abstract One‐step and template‐free synthesis of polyaniline nanobuds (PANI NBs), synthesized using anodic electrochemical polymerization method, is reported at room temperature onto a conducting indium‐tin‐oxide glass substrate. The PANI NBs are characterized for their structural, morphological, and electrochromic pr…
Using first-principles band structure calculations, we investigate the crystal-field and spin-orbit splittings at the valence-band edge of ZnO and their dependence on the strain. Different from other conventional semiconductors, the variation of the valence-band splitting of ZnO shows a strong nonlinear dependence on…
Practical uses of nanomaterials are rapidly spreading to a wide variety of fields. However, potential harmful effects of nanomaterials are raising concerns about their safety. Therefore, it is important that a risk assessment system is developed so that the safety of nanomaterials can be evaluated or predicted. Here,…
This paper investigates the flexural and impact properties of kenaf-glass (KG) fibers reinforced unsaturated polyester (UPE) hybrid composite on a source of green composite. The matrix is kept constant with 70 % volume fraction while kenaf and glass fibers were varied, such as 7.5/22.5 v/v, 15/15 v/v and 22.5/7.5 v/v.…
A reinvestigation of the synthesis of [H(5-n)Rh(13)(CO)(24)](n-) (n = 2, 3) led to isolation of a series of Rh(19), Rh(26), and Rh(33) high-nuclearity carbonyl and carbonyl-substituted rhodium clusters. The [Rh(19)(CO)(31)](5-) (1) is electronically equivalent with [Pt(19)(CO)(22)](4-), but poor crystal diffraction da…
Nanotechnology is the design and development of materials, structures, and devices with at least 1 dimension between the 1- and 100-nm-size scale. Manipulating matter at the atomic scale offers unique opportunities in material design particularly in biological interfaces. In this short review, we explore the disruptiv…
Many acid additives are used during acidizing treatment in order to prevent excessive corrosion, prevent sludge and emulsions, prevent iron precipitation, improve cleanup, improve coverage of the zone, and prevent precipitation of reaction products. Foremost among acid additives are corrosion inhibitors; therefore com…
The principal aim of this project was to achieve a better understanding of the various parameters that contribute to the tensile properties. These parameters were manipulated in order to improve and produced PPnanoclay/ Polypropylene (PP) reinforced oil palm empty fruit bunch composite material (OPEFB). OPEFB fibre wa…
With antibody-mediated magnetic nanoparticles (MNPs) applied in cancer examinations, patients must pay at least twice for MNP reagents in immunomagnetic reduction (IMR) of in vitro screening and magnetic resonance imaging (MRI) of in vivo tests. This is because the high maintenance costs and complex analysis of MRI ha…
Nitrogen doped amorphous carbon (n-C:N) solar cells were successfully prepared using a simple and low cost Chemical Vapor Deposition (CVD) method using camphor oil as a precursor. Four samples of n-C:N were deposited by varying the deposition temperature (500oC, 550oC, 600oC, 650oC). The fabricated solar cell using n-…