Comparation Trace Element and Structural of Filler Materials in Chitosan Films

2016 ◽  
Vol 675-676 ◽  
pp. 213-216
Author(s):  
Noppadon Chamchoi ◽  
Narong Sangwaranatee ◽  
Jakrapong Kaewkhao ◽  
A. Montree ◽  
K. Teanchai ◽  
...  

In present study, the structural and trace element were preliminary survey the potentiality to use as filler material for produced the biocomposite films. The first raw material is chitosan and the second raw material is chicken eggshell. Both raw material were investigated the structural and morphological with X-ray Diffraction (XRD) and Scaning Electron Microscope (SEM), respectively. While, Fourier transform infrared spectroscopy (FT-IR) the Energy Dispersive X-ray Fluorescence (EDXRF) were used to investigate functional group and trace element, respectively. The result show that, both material have crystalline structural. The chicken eggshell have calcite structure while the chitosan have amorphos-crystalline structure. The chemical composition in both material compose of P, Ca, Fe similarly but the concentration have been different.

2016 ◽  
Vol 675-676 ◽  
pp. 482-485
Author(s):  
Anusorn Montree ◽  
Kanyakorn Teanchai ◽  
Wichian Siriprom

The aim of this study is preliminary survey the natural material and investigates physicochemical properties of cellulose and chicken eggshell. The chickeneggshell as natural material which used as film filler in the cellulose/CaCO3 biocomposite. The potential and the possibilities of chicken eggshell to use as filler were studied with three conventional analysis techniques, X-ray Diffraction (XRD), Energy Dispersive X-ray Fluorescence (EDXRF) and Fourier transform infrared (FT-IR) spectroscopy. It was found that the structural of chicken eggshell have calcites phase and the structural of cellulose have amorphous crystalline phase while the chemical composition of both material were investigated by EDXRF which show the organic compound as major element in cellulose but in chicken eggshell the major element is organic compound and calcium (Ca) element. The deeply investigate molecular composition by FT-IR which show the characteristic feature have been studied.


Author(s):  
IYAN SOPYAN ◽  
INSAN SUNAN KURNIWAN SYAH ◽  
DESI NURHAYTI ◽  
ARIF BUDIMAN

Objective: This study aimed to enhance the solubility of simvastatin using noncovalent derivatives (NCDs) with oxalic acid (OA), fumaric acid (AF), and nicotinamide (NK) as conformers. Methods: NCDs were prepared using by a solvent drop grinding (SDG). The NCDs formed were evaluated for saturated solubility test, NCDs with the highest saturation solubility were then characterized by Fourier transform infrared spectrophotometry (FT-IR), differential scanning calorimeter (DSC), powder x-ray diffractometry (PXRD) and the particulate dissolution using type II of USP test. Results: SV-OA NCDs showed the highest solubility; thus NCDS of SV-OA were characterized by X-ray diffraction showing a new peak at 2ϴ = 28.96 °C and differential scanning calorimeter showed a change of endothermic peak from 134.3 °C to 69 °C. Infrared spectroscopy indicated that there were no functional group changes from simvastatin, while the dissolution rate increased from 68.22% to 76.08%. Conclusion: SV-OA NCDs show an increased profile of solubility and dissolution compared to pure simvastatin.


2013 ◽  
Vol 591 ◽  
pp. 12-15
Author(s):  
Xiao Hu Zhang ◽  
Chun Ying Zhang ◽  
Feng Zhan ◽  
Nan Chun Chen

Synthesis of zeolite A by the use of natural materials (naturally stellerite) has been achieved without template agent. The final product was tested with X-ray diffraction, which was identified as the zeolite A. Then, the raw material and each step product were tested with Fourier Transformation Infrared (FT-IR). Comparing their FT-IR, we analyzed their spectrum characteristics, differences and reasons.


2011 ◽  
Vol 356-360 ◽  
pp. 325-330
Author(s):  
Min Min Wang ◽  
Li Wang ◽  
Ai Qin Wang

Lignocellulose/organic montmorillonite (LNC/OMMT) nanocomposites have been prepared by the solution intercalation method from pristine montmorillonite (MMT),using Cetyl three methyl brominated ammonium(CTAB) as the reactive compatibilizer between LNC and MMT .Then the nanocomposites were characterized by Fourier transform infrared(FT-IR),X-ray diffraction(XRD) and Scanning electron microscope(SEM).Diffferent preparation conditions influence of the adsorption property on nanocomposites for Congo Red were studied. The characterization results indicate that LNC molecules have intercalated into the interlayers of OMMT and increased its interlayer distance. The intercalated structure was formed in LNC/OMMT nanocomposits. The adsorption result show that the nanocomposits have higher adsorption capacity with weight ratio of LNC to OMMT 6:1, reaction temperature 50°C, reaction time 6 h, concentration of NaOH 10%.


2018 ◽  
Vol 4 (1) ◽  
pp. 9-20
Author(s):  
Jenniffer Syreetta de Oliveira Spelta ◽  
André Gustavo de Sousa Galdino

The chicken eggshell is a bioceramic composite which constitutes a solid waste material whose final disposal is complex and expensive. Brazil generates significant amounts of eggshell residue. This work aimed to characterize the eggshells of white, red and backyard hens and indicate their technological potential as raw material for ceramic products manufacturing. The eggshells were crushed, ground, sifted in a ABNT number 80 sieve and subsequently analyzed by X-rays fluorescence (XRF), X-ray diffraction (XRD) and thermal analyses (DTA and TGA). Through XRF it was observed that the main constituent of eggshell is calcium oxide (CaO), with different percentages between the eggshell types. XRD analysis indicated that the chicken eggshells used in this work are mainly composed of CaCO3. DTA and TGA demonstrated that the thermal decomposition of the chicken eggshells occurs in three events: water removal; decomposition of organic matter; and decomposition of CaCO3 in CaO and CO2. By reviewing the literature, it was verified that chicken eggshells have important applications since they can be used in biomedicine, civil construction, food industries and as soil nutrients. As a result, it is possible to conclude that the chicken eggshell is rich in CaCO3 and can be easily calcined to obtain CaO.


2012 ◽  
Vol 499 ◽  
pp. 95-98
Author(s):  
Jun Chang ◽  
Cheng Wu Li ◽  
Gang Li

Using chloroacetic acid(CA) and polyethylene glycol(PEG) as raw material, polyacetic acid-polyethylene glycol-polyacetic acid(PCA-PEG-PCA) triblock copolymer was synthesized by solution polycondensation. The triblock copolymer was characterized by FT-IR spectroscopy、X-Ray Diffraction and DSC. The structure of copolymer was confirmed by FT-IR. The crystallinity of compolymer was 51.24% investigated by XRD, and the result of DSC showed the PCA and PEG was homogeneous with a good compatibility.


Polymers ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 1085
Author(s):  
Patricia Castaño-Rivera ◽  
Isabel Calle-Holguín ◽  
Johanna Castaño ◽  
Gustavo Cabrera-Barjas ◽  
Karen Galvez-Garrido ◽  
...  

Organoclay nanoparticles (Cloisite® C10A, Cloisite® C15) and their combination with carbon black (N330) were studied as fillers in chloroprene/natural/butadiene rubber blends to prepare nanocomposites. The effect of filler type and load on the physical mechanical properties of nanocomposites was determined and correlated with its structure, compatibility and cure properties using Fourier Transformed Infrared (FT-IR), X-ray Diffraction (XRD), Thermogravimetric Analysis (TGA) and rheometric analysis. Physical mechanical properties were improved by organoclays at 5–7 phr. Nanocomposites with organoclays exhibited a remarkable increase up to 46% in abrasion resistance. The improvement in properties was attributed to good organoclay dispersion in the rubber matrix and to the compatibility between them and the chloroprene rubber. Carbon black at a 40 phr load was not the optimal concentration to interact with organoclays. The present study confirmed that organoclays can be a reinforcing filler for high performance applications in rubber nanocomposites.


Polymers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 2123
Author(s):  
Maria Râpă ◽  
Maria Stefan ◽  
Paula Popa ◽  
Dana Toloman ◽  
Cristian Leostean ◽  
...  

The electrospun nanosystems containing poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) and 1 wt% Fe doped ZnO nanoparticles (NPs) (with the content of dopant in the range of 0–1 wt% Fe) deposited onto polylactic acid (PLA) film were prepared for food packaging application. They were investigated by scanning electron microscopy (SEM), energy dispersive X-ray (EDX), Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), antimicrobial analysis, and X-ray photoelectron spectrometry (XPS) techniques. Migration studies conducted in acetic acid 3% (wt/wt) and ethanol 10% (v/v) food simulants as well as by the use of treated ashes with 3% HNO3 solution reveal that the migration of Zn and Fe falls into the specific limits imposed by the legislation in force. Results indicated that the PLA/PHBV/ZnO:Fex electrospun nanosystems exhibit excellent antibacterial activity against the Pseudomonas aeruginosa (ATCC-27853) due to the generation of a larger amount of perhydroxyl (˙OOH) radicals as assessed using electron paramagnetic resonance (EPR) spectroscopy coupled with a spin trapping method.


Author(s):  
Erdoğan Karip ◽  
Mehtap Muratoğlu

People are exposed to different kinds of diseases or various accidents in life. Hydroxyapatite (HA) has been widely employed for bone treatment applications. In this study, HA was extracted from sheep bones. Bio-composites were doped with 1, 5, and 10 wt.% of expanded perlite and 5 wt.% of ZrO2–MgO-P2O5. The bio-composites were prepared by the cold isostatic pressing method (250 MPa) and sintered at 900°C for 1 h. In order to evaluate the characteristics of the bio-composites, microhardness, density, X-ray diffraction (XRD), Fourier transform infra-red spectroscopy (FT-IR), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS) analyses were carried out on them. Additionally, the specimens whose characteristics were determined were kept in synthetic body fluid (SBF), and their in vitro behavior was examined. As a result, it was observed that microhardness increased as both the weight and the grain size of the expanded perlite were increased. Calcium silicate, tri-calcium phosphate, and hydroxyapatite were observed in the XRD analysis of all samples, and the formation of apatite structures was increased by addition of ZrO2–MgO–P2O5.


Polymers ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 558
Author(s):  
Wenhui Zhu ◽  
Caiyun Zhang ◽  
Yali Chen ◽  
Qiliang Deng

Photothermal materials are attracting more and more attention. In this research, we synthesized a ferrocene-containing polymer with magnetism and photothermal properties. The resulting polymer was characterized by Fourier-transform infrared (FT-IR), vibrating sample magnetometer (VSM), scanning electron microscope (SEM), energy dispersive X-ray spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), and thermogravimetric analysis (TGA). Its photo-thermocatalytic activity was investigated by choosing methylene blue (MB) as a model compound. The degradation percent of MB under an irradiated 808 nm laser reaches 99.5% within 15 min, and the degradation rate is 0.5517 min−1, which is 145 times more than that of room temperature degradation. Under irradiation with simulated sunlight, the degradation rate is 0.0092 min−1, which is approximately 2.5 times more than that of room temperature degradation. The present study may open up a feasible route to degrade organic pollutants.


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