FT-IR of the Polymer-Reinforcement Interphase in Composite Materials

1987 ◽  
pp. 363-376 ◽  
Author(s):  
Andrew Garton
Keyword(s):  
Composite Materials ◽  
Ft Ir

Synthesis of Macromolecular Coupling Agent and its Effects on Polystyrene Composites

2014 ◽  
Vol 1053 ◽  
pp. 268-275
Author(s):  
Hong Wen Zhang ◽  
Shi Long Zhou ◽  
Yang Zhang ◽  
Yan Jiang ◽  
Qiang Yu
Keyword(s):  
Composite Materials ◽  
Gel Permeation Chromatography ◽  
Ultraviolet Spectrum ◽  
Butyl Methacrylate ◽  
Coupling Agents ◽  
Resonance Spectroscopy ◽  
H Nmr ◽  
Comprehensive Performance ◽  
Ft Ir ◽  
The Impact

Different molecular weight of block coupling agents with well-defined structures have been synthesized successfully by atom transfer radical polymerization (ATRP) from styrene (St), butyl methacrylate (BMA) and 3-methoxyacryloyl-propyltrimethoxyl silicon (KH-570) are as monomer. The structures and compositions of macromolecular coupling agents have been characterized by means of infrared spectrum (FT-IR), ultraviolet spectrum (UV), nuclear magnetic resonance spectroscopy (1H-NMR) and gel permeation chromatography (GPC). And their effects on the polystyrene/silica (PS/SiO2) composite materials have been studied. The results show that interface compatibility and mechanical properties of composite materials containing macromolecule coupling agents are improved significantly. The composite materials with block macromolecular coupling agents possess more excellent comprehensive performance. Furthermore, the impact strength increased by 110% when comparing with composite materials which are not modified by the coupling agents.

Synthesis of Biodegradable Composite for Knee Cartilage Prosthesis Joint

2012 ◽  
Vol 1376 ◽  
Author(s):  
J.C. Pérez-Reyes ◽  
G. Carbajal-De la Torre ◽  
M. A. Espinosa-Medina ◽  
L. A. Ibarra-Bracamontes ◽  
M. Villagómez-Galindo ◽  
...  
Keyword(s):  
Composite Materials ◽  
Calcium Phosphates ◽  
Inorganic Compounds ◽  
X Ray Diffraction ◽  
Biodegradable Composite ◽  
Hard Particles ◽  
Biological Implants ◽  
Ft Ir ◽  
Degradation Time

ABSTRACTOsteoarthritis is a very complex illness of the joints that affects cartilage and subcondral bone. At the last years, researching has been focused in the development and characterization of composite materials, evaluating their structural properties. Some o those composite materials are constituted by organic and inorganic compounds forming hybrids. These materials can improve their properties due to the interaction of reinforcement hard particles in the polymeric matrix. The interest on the composite biomaterials has been increased on the biomedical applications such as tissue regenerating based in synthetic polymers with biodegradable and biocompatible properties whose can be reinforced by calcium phosphates. In this sense, hydroxyapatite [Ca10(PO4)6(OH)2] is often used for biological implants due its mineral phase similitude with bone microstructure and tissue compatibility. Similarly, polylactic acid (PLA) is a used polymer for implant applications due physicochemical and biocompatibility properties, and short degradation time also. In order to obtain a composite that can be used as a regenerating material on the osteoarthritis problem, in this work a (90/10 wt.%) polylactic/hydroxyapatite hybrid composite was produced by chemical synthesis and characterized by X-ray diffraction, SEM, FT-IR and TGA/DSC techniques.

Porous TiO2-Al2O3 Photocatalyst: The Effects of Calcination Time

2012 ◽  
Vol 496 ◽  
pp. 165-168 ◽  
Author(s):  
Wen Jie Zhang ◽  
Hong Liang Xin
Keyword(s):  
Composite Materials ◽  
Average Pore Size ◽  
Sol Gel ◽  
Specific Area ◽  
Maximum Activity ◽  
Calcination Time ◽  
Average Pore ◽  
Porous Tio2 ◽  
Al2o3 Composite ◽  
Ft Ir

Porous TiO2-Al2O3 composite materials were prepared through sol-gel method after calcination at 500 oC for different time. FT-IR spectra of porous TiO2-Al2O3 composite materials revealed that the samples are composed of Al2O3 and TiO2. The sample calcinated for 2.5 h had the maximum specific area of 128.9 m2•g-1. High pore volume and average pore size were possessed by the samples calcinated for 1 h and 3 h. While being calcinated at 500 oC, photocatalytic activities of the materials increased at first and then dropped down with the increasing calcination time. The sample calcinated for 3 h showed the maximum activity of 35%.

Characterizations of Newly Fabricated Composite Materials Based on Organoclay Incorporated Polymeric Matrix

2017 ◽  
Vol 902 ◽  
pp. 79-82
Author(s):  
Bhajan Lal ◽  
Attaullah ◽  
Shafique Ahmed Arain ◽  
Sajid Haleem ◽  
Sagar Kumar
Keyword(s):  
Composite Materials ◽  
Polyacrylic Acid ◽  
Characteristic Peak ◽  
Sem Images ◽  
Porosity Distribution ◽  
Infra Red ◽  
Ft Ir ◽  
Organic Clay ◽  
Ir Analysis ◽  
Scanning Electron

This article reports the synthesis of engineered materials i.e. composite materials based on matrix (polymeric polyacrylic acid) and reinforcement (organic clay) through 6-hour and 12-hour ultrasonication at different intervals. All the precursors and desired composite materials were characterized by Fourier transform infra-red (FT-IR) and scanning electron microscopy (SEM) techniques. The disappearance of Si-O characteristic peak after ultrasonication justifies the fabrication and incorporation of organoclay in the polymeric structure of polyacrylic acid as revealed by FT-IR analysis. The SEM images interpreted the surface morphology, porosity, distribution and compatibility of matrix and reinforcement in it, which has been achieved successfully in this study for exfoliation form.

Synthesis Alloy and Composite Materials of Nano-Silver-Nickel

2014 ◽  
Vol 989-994 ◽  
pp. 181-184
Author(s):  
Wen Jing Cui ◽  
Lin Wang ◽  
Jing Wen Fu ◽  
Dong Yu Zhao
Keyword(s):  
Solid Solution ◽  
Cyclic Voltammetry ◽  
Composite Materials ◽  
Emulsion Polymerization ◽  
Nickel Alloy ◽  
In Situ Synthesis ◽  
Synthesis Conditions ◽  
Alloy Particles ◽  
Ft Ir

In this research, Silver—nickel alloy nanocomposites has been synthesized by reducing mixture solution of Ni2+, Ag+ with hydrazine hydrate as reducer and OP-10 as surfactant. Silver—nickel alloy nanocomposites were characterized by FT-IR, XRD, SEM. And the electrochemical properties of the samples were studied by cyclic voltammetry. Ag-Ni/PANI composites were prepared by in-situ synthesis and emulsion polymerization, and the effect of conduction on the conductivity was investigated including content of alloy. The detailed analysis of the synthesis conditions shows that the reduction takes place in alkaline environment and low-temperature is propitious to generate alloy solid-solution grain. Composites prepared by emulsion polymerization in acidic aqueous solutions synthesis of polyaniline shows higher conductivity than pure polymer, due to the strong interaction between alloy particles and doping PANI.

scholarly journals Voigt-based swelling water model for super water absorbency of expanded perlite and sodium polyacrylate resin composite materials

e-Polymers ◽  
2019 ◽  
Vol 19 (1) ◽  
pp. 365-368 ◽  
Author(s):  
Yongshang Tian ◽  
Yitian Tang ◽  
Shuiyun Li ◽  
Huanhuan Lv ◽  
Peng Liu ◽  
...  
Keyword(s):  
Composite Materials ◽  
Resin Composite ◽  
Ceric Ammonium Nitrate ◽  
Water Model ◽  
Water Absorbency ◽  
Sodium Polyacrylate ◽  
Expanded Perlite ◽  
Tapioca Starch ◽  
Ft Ir ◽  
Degradation Ability

AbstractPolyacrylate resin composite materials with the mineral exhibit super water absorbency and good degradation ability. In this work, expanded perlite and sodium polyacrylate resin composite materials have been prepared with ceric ammonium nitrate (CAN), N,N’-methylene bisacrylamide (MBA), tapioca starch, and expanded perlite. Fourier transform infrared spectroscopy (FT-IR) and field emission scanning electron microscopy (SEM) are used to characterize the bonds absorption peaks and morphologies. The results suggest that the expanded perlite can graft on sodium polyacrylate resin, and the optimal distilled water and 0.9% NaCl absorbency are 1079 and 253 g/g when the expanded perlite content is 8 wt%, respectively. The swelling water model of the composite materials is firstly simulated to be Voigt-based model. In addition, the composite materials absorbency that is influenced by special characteristics of the expanded perlite has been shown.

The Production of Core-Shell Structure Carboxylated Carbon Nanotubes/Polypyrrole Composite Materials in Different Reaction Media and Further Investigation on their Core-Shell Structure

2017 ◽  
Vol 730 ◽  
pp. 37-41 ◽  
Author(s):  
Hui Li Cao ◽  
Yuan Chang Shi ◽  
Hao Shen ◽  
Hu Dong Zhan ◽  
Jiu Rong Liu
Keyword(s):  
Carbon Nanotubes ◽  
Electron Microscope ◽  
Composite Materials ◽  
Shell Structure ◽  
Core Shell ◽  
Transmission Electron ◽  
Ft Ir ◽  
Core Shell Structure ◽  
Polypyrrole Composite ◽  
Carboxylated Carbon Nanotubes

In this paper carboxylated carbon nanotubes/polypyrrole composite (CNTs/PPy) was synthesized in different surfactants aqueous under sonication. Carboxylated CNTs was synthesized in hydrogen nitrate by ultrasonic method and coated by PPy. The synthesized CNTs/PPy in different surfactants was evaluated by Fourier transform infrared spectrometer (FT-IR) and transmission electron microscope. The FT-IR patterns illustrate that CNTs were successfully doped by PPy. The morphology of CNTs/PPy synthesized showed on the transmission electron microscope images. The composite materials sythesized without surfactant are easy reunited. It is also found the surface of CNTs/PPy synthesized in cetyl trimethyl ammonium bromide (CTAB) is smoother than that in other surfactants. The coating effect is better with thicker coating layer. The higher magnification of HRTEM images show the PPy was deposited directly on the surface of carbon nanotubes. The final products are the ordered coaxial composite with well-defined core-shell structure.

Rheo-optical FT-IR Spectroscopy of LLDPE: Effect of Comonomer and Composite Materials

2008 ◽  
Vol 265 (1) ◽  
pp. 166-177 ◽  
Author(s):  
M. Plass ◽  
R. Streck ◽  
J. Nieto ◽  
H. W. Siesler
Keyword(s):  
Composite Materials ◽  
Ir Spectroscopy ◽  
Ft Ir ◽  
Ft Ir Spectroscopy

scholarly journals THE IMPROVEMENT OF RAMIE FIBER PROPERTIES AS COMPOSITE MATERIALS USING ALKALIZATION TREATMENT: NaOH CONCENTRATION

2021 ◽  
Vol 22 (2) ◽  
pp. 62
Author(s):  
Umi Lailatul Jamilah ◽  
Sujito Sujito
Keyword(s):  
Tensile Strength ◽  
Composite Materials ◽  
Tensile Test ◽  
Tensile Modulus ◽  
Fiber Surface ◽  
Ramie Fiber ◽  
Test Results ◽  
Fiber Properties ◽  
Ramie Fibers ◽  
Ft Ir

THE IMPROVEMENT OF RAMIE FIBER PROPERTIES AS COMPOSITE MATERIALS USING ALKALIZATION TREATMENT: NaOH CONCENTRATION. Ramie fiber is a plant fiber that has good quality and potential as a constituent of composite materials. In this study, ramie fiber surface modification was conducted through alkalization with various at 0%, 4%, 5%, 6%, 7%, 8%, and 9% concentrations of NaOH using a magnetic stirrer with a speed of 200 rpm at 70οC for 5 hours. Alkaline ramie fibers are characterized using the Cheson method to determine the chemical composition of ramie fiber, FT-IR test to determine the function group of ramie fiber, morphological test to know the surface structure and diameter of ramie fiber, as well as tensile test to know the tensile strength and tensile modulus of PLA/ramie composite. Overall, the increase of NaOH concentration up to 8% percentage was able to increase the level of cellulose and lignin ramie fibers by 88.180 % and 2.444 %, as well as lower hemicellulose levels of 1.446 %. The alkalization treatment of 8% NaOH, optimally reduces the hydrophilic properties of the fiber. The increased concentration of NaOH makes the fiber surface cleaner and the diameter smaller, but the fiber structure is damaged at a concentration of NaOH more than 8%. Tensile test results showed that alkalized ramie fibers with an 8% concentration of NaOH produced PLA/ramie composites with the highest tensile strength and tensile modulus of 57.37 MPa and 248.25 MPa. Thus, the optimum ramie fiber properties are increased using alkalization with an 8% concentration of NaOH.

scholarly journals Composite materials based on dental acrylic plastic and chitosan

2021 ◽  
Vol 8 (4) ◽  
pp. 20218413
Author(s):  
L. A. Yakovishin ◽  
E. V. Tkachenko
Keyword(s):  
Composite Materials ◽  
Ir Spectroscopy ◽  
Hydrogen Bonds ◽  
Polymer Composites ◽  
Hydrophobic Interactions ◽  
Mechanochemical Method ◽  
Intermolecular Hydrogen Bonds ◽  
Dental Acrylic ◽  
Ft Ir ◽  
Ft Ir Spectroscopy

Chitosan and poly(methyl methacrylate) (PMMA) composites were synthesized by polymerization with heating and mechanochemical method. The obtained polymer composites were analyzed by the ATR FT-IR spectroscopy method. The presence of intermolecular hydrogen bonds and hydrophobic interactions in formation of PMMA and chitosan polymer composites was shown.

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